X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=gcc%2Fconfigure;h=9fec1cc89026111d75597cc73f697cf4c1d8bd95;hb=e1ebd31d5aa3733d227f5f15ff4f4e47dd954e28;hp=20dbce6973671493e0ceb3cd7ba0c07a62a07bce;hpb=0c9dc4ae5963c1e752a04c8fb9d1bb3f37df7290;p=platform%2Fupstream%2Fgcc.git

diff --git a/gcc/configure b/gcc/configure
index 20dbce6..9fec1cc 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -600,6 +600,9 @@ ac_includes_default="\
 
 ac_subst_vars='LTLIBOBJS
 LIBOBJS
+NO_PIE_FLAG
+NO_PIE_CFLAGS
+enable_default_pie
 PICFLAG
 enable_host_shared
 enable_plugin
@@ -675,6 +678,7 @@ MAINT
 zlibinc
 zlibdir
 HOST_LIBS
+enable_default_ssp
 libgcc_visibility
 gcc_cv_readelf
 gcc_cv_objdump
@@ -703,6 +707,10 @@ FGREP
 SED
 LIBTOOL
 collect2
+NO_PIE_FLAG_FOR_BUILD
+NO_PIE_CFLAGS_FOR_BUILD
+BUILD_NO_PIE_FLAG
+BUILD_NO_PIE_CFLAGS
 STMP_FIXINC
 BUILD_LDFLAGS
 BUILD_CXXFLAGS
@@ -740,7 +748,6 @@ COLLECT2_LIBS
 CXXDEPMODE
 DEPDIR
 am__leading_dot
-CXXCPP
 doc_build_sys
 AR
 NM
@@ -767,10 +774,6 @@ REPORT_BUGS_TEXI
 REPORT_BUGS_TO
 PKGVERSION
 CONFIGURE_SPECS
-CROSS_SYSTEM_HEADER_DIR
-TARGET_SYSTEM_ROOT_DEFINE
-TARGET_SYSTEM_ROOT
-SYSROOT_CFLAGS_FOR_TARGET
 enable_shared
 enable_fixed_point
 enable_decimal_float
@@ -783,7 +786,6 @@ valgrind_command
 valgrind_path_defines
 valgrind_path
 TREECHECKING
-TREEBROWSER
 nocommon_flag
 noexception_flags
 warn_cxxflags
@@ -792,9 +794,11 @@ c_strict_warn
 strict_warn
 c_loose_warn
 loose_warn
+aliasing_flags
+CPP
 EGREP
 GREP
-CPP
+CXXCPP
 PICFLAG_FOR_TARGET
 GNATMAKE
 GNATBIND
@@ -809,11 +813,16 @@ LDFLAGS
 CFLAGS
 CC
 GENINSRC
+CROSS_SYSTEM_HEADER_DIR
+TARGET_SYSTEM_ROOT_DEFINE
+TARGET_SYSTEM_ROOT
+SYSROOT_CFLAGS_FOR_TARGET
 target_subdir
 host_subdir
 build_subdir
 build_libsubdir
 target_noncanonical
+host_noncanonical
 target_os
 target_vendor
 target_cpu
@@ -870,6 +879,9 @@ ac_user_opts='
 enable_option_checking
 with_build_libsubdir
 with_local_prefix
+with_native_system_header_dir
+with_build_sysroot
+with_sysroot
 with_gxx_include_dir
 with_cpp_install_dir
 enable_generated_files_in_srcdir
@@ -893,12 +905,10 @@ enable_decimal_float
 enable_fixed_point
 enable_threads
 enable_tls
+enable_vtable_verify
 enable_objc_gc
 with_dwarf2
 enable_shared
-with_native_system_header_dir
-with_build_sysroot
-with_sysroot
 with_specs
 with_pkgversion
 with_bugurl
@@ -923,9 +933,11 @@ enable_gnu_indirect_function
 enable_initfini_array
 enable_comdat
 enable_fix_cortex_a53_835769
+enable_fix_cortex_a53_843419
 with_glibc_version
 enable_gnu_unique_object
 enable_linker_build_id
+enable_default_ssp
 with_long_double_128
 with_gc
 with_system_zlib
@@ -937,6 +949,7 @@ enable_host_shared
 enable_libquadmath_support
 with_linker_hash_style
 with_diagnostics_color
+enable_default_pie
 '
       ac_precious_vars='build_alias
 host_alias
@@ -949,8 +962,8 @@ CPPFLAGS
 CXX
 CXXFLAGS
 CCC
-CPP
 CXXCPP
+CPP
 GMPLIBS
 GMPINC
 ISLLIBS
@@ -1585,7 +1598,7 @@ Optional Features:
                           enable expensive run-time checks. With LIST, enable
                           only specific categories of checks. Categories are:
                           yes,no,all,none,release. Flags are:
-                          assert,df,fold,gc,gcac,gimple,misc,
+                          assert,df,extra,fold,gc,gcac,gimple,misc,
                           rtlflag,rtl,runtime,tree,valgrind,types
   --enable-coverage[=LEVEL]
                           enable compiler's code coverage collection. Use to
@@ -1608,6 +1621,7 @@ Optional Features:
                           package
   --enable-tls            enable or disable generation of tls code overriding
                           the assembler check for tls support
+  --enable-vtable-verify  enable vtable verification feature
   --enable-objc-gc        enable the use of Boehm's garbage collector with the
                           GNU Objective-C runtime
   --disable-shared        don't provide a shared libgcc
@@ -1648,11 +1662,20 @@ Optional Features:
                           disable workaround for AArch64 Cortex-A53 erratum
                           835769 by default
 
+
+  --enable-fix-cortex-a53-843419
+                          enable workaround for AArch64 Cortex-A53 erratum
+                          843419 by default
+  --disable-fix-cortex-a53-843419
+                          disable workaround for AArch64 Cortex-A53 erratum
+                          843419 by default
+
   --enable-gnu-unique-object
                           enable the use of the @gnu_unique_object ELF
                           extension on glibc systems
   --enable-linker-build-id
                           compiler will always pass --build-id to linker
+  --enable-default-ssp    enable Stack Smashing Protection as default
   --enable-maintainer-mode
                           enable make rules and dependencies not useful (and
                           sometimes confusing) to the casual installer
@@ -1665,12 +1688,19 @@ Optional Features:
   --enable-host-shared    build host code as shared libraries
   --disable-libquadmath-support
                           disable libquadmath support for Fortran
+  --enable-default-pie    enable Position Independent Executable as default
 
 Optional Packages:
   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
   --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
   --with-build-libsubdir=DIR  Directory where to find libraries for build system
   --with-local-prefix=DIR specifies directory to put local include
+  --with-native-system-header-dir=dir
+                          use dir as the directory to look for standard
+                          system header files in.  Defaults to /usr/include.
+  --with-build-sysroot=sysroot
+                          use sysroot as the system root during the build
+  --with-sysroot[=DIR]    search for usr/lib, usr/include, et al, within DIR
   --with-gxx-include-dir=DIR
                           specifies directory to put g++ header files
   --with-cpp-install-dir=DIR
@@ -1683,12 +1713,6 @@ Optional Packages:
   --with-as               arrange to use the specified as (full pathname)
   --with-stabs            arrange to use stabs instead of host debug format
   --with-dwarf2           force the default debug format to be DWARF 2
-  --with-native-system-header-dir=dir
-                          use dir as the directory to look for standard
-                          system header files in.  Defaults to /usr/include.
-  --with-build-sysroot=sysroot
-                          use sysroot as the system root during the build
-  --with-sysroot[=DIR]    search for usr/lib, usr/include, et al, within DIR
   --with-specs=SPECS      add SPECS to driver command-line processing
   --with-pkgversion=PKG   Use PKG in the version string in place of "GCC"
   --with-bugurl=URL       Direct users to URL to report a bug
@@ -1725,12 +1749,12 @@ Some influential environment variables:
               you have headers in a nonstandard directory <include dir>
   CXX         C++ compiler command
   CXXFLAGS    C++ compiler flags
-  CPP         C preprocessor
   CXXCPP      C++ preprocessor
+  CPP         C preprocessor
   GMPLIBS     How to link GMP
   GMPINC      How to find GMP include files
-  ISLLIBS     How to link ISL
-  ISLINC      How to find ISL include files
+  ISLLIBS     How to link isl
+  ISLINC      How to find isl include files
 
 Use these variables to override the choices made by `configure' or to help
 it to find libraries and programs with nonstandard names/locations.
@@ -1888,10 +1912,10 @@ fi
 
 } # ac_fn_cxx_try_compile
 
-# ac_fn_c_try_cpp LINENO
-# ----------------------
+# ac_fn_cxx_try_cpp LINENO
+# ------------------------
 # Try to preprocess conftest.$ac_ext, and return whether this succeeded.
-ac_fn_c_try_cpp ()
+ac_fn_cxx_try_cpp ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
   if { { ac_try="$ac_cpp conftest.$ac_ext"
@@ -1910,7 +1934,7 @@ $as_echo "$ac_try_echo"; } >&5
   fi
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } >/dev/null && {
-	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+	 test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
 	 test ! -s conftest.err
        }; then :
   ac_retval=0
@@ -1923,14 +1947,14 @@ fi
   eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
   return $ac_retval
 
-} # ac_fn_c_try_cpp
+} # ac_fn_cxx_try_cpp
 
-# ac_fn_c_check_header_mongrel LINENO HEADER VAR INCLUDES
-# -------------------------------------------------------
+# ac_fn_cxx_check_header_mongrel LINENO HEADER VAR INCLUDES
+# ---------------------------------------------------------
 # Tests whether HEADER exists, giving a warning if it cannot be compiled using
 # the include files in INCLUDES and setting the cache variable VAR
 # accordingly.
-ac_fn_c_check_header_mongrel ()
+ac_fn_cxx_check_header_mongrel ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
   if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
@@ -1951,7 +1975,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 $4
 #include <$2>
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_header_compiler=yes
 else
   ac_header_compiler=no
@@ -1967,7 +1991,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <$2>
 _ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
+if ac_fn_cxx_try_cpp "$LINENO"; then :
   ac_header_preproc=yes
 else
   ac_header_preproc=no
@@ -1977,7 +2001,7 @@ rm -f conftest.err conftest.$ac_ext
 $as_echo "$ac_header_preproc" >&6; }
 
 # So?  What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in #((
+case $ac_header_compiler:$ac_header_preproc:$ac_cxx_preproc_warn_flag in #((
   yes:no: )
     { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&5
 $as_echo "$as_me: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&2;}
@@ -2010,13 +2034,13 @@ $as_echo "$ac_res" >&6; }
 fi
   eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
 
-} # ac_fn_c_check_header_mongrel
+} # ac_fn_cxx_check_header_mongrel
 
-# ac_fn_c_try_run LINENO
-# ----------------------
+# ac_fn_cxx_try_run LINENO
+# ------------------------
 # Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
 # that executables *can* be run.
-ac_fn_c_try_run ()
+ac_fn_cxx_try_run ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
   if { { ac_try="$ac_link"
@@ -2052,13 +2076,13 @@ fi
   eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
   return $ac_retval
 
-} # ac_fn_c_try_run
+} # ac_fn_cxx_try_run
 
-# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
-# -------------------------------------------------------
+# ac_fn_cxx_check_header_compile LINENO HEADER VAR INCLUDES
+# ---------------------------------------------------------
 # Tests whether HEADER exists and can be compiled using the include files in
 # INCLUDES, setting the cache variable VAR accordingly.
-ac_fn_c_check_header_compile ()
+ac_fn_cxx_check_header_compile ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
@@ -2071,7 +2095,7 @@ else
 $4
 #include <$2>
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   eval "$3=yes"
 else
   eval "$3=no"
@@ -2083,14 +2107,51 @@ eval ac_res=\$$3
 $as_echo "$ac_res" >&6; }
   eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
 
-} # ac_fn_c_check_header_compile
+} # ac_fn_cxx_check_header_compile
+
+# ac_fn_c_try_cpp LINENO
+# ----------------------
+# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_cpp ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } >/dev/null && {
+	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+    ac_retval=1
+fi
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
+  return $ac_retval
+
+} # ac_fn_c_try_cpp
 
-# ac_fn_c_compute_int LINENO EXPR VAR INCLUDES
-# --------------------------------------------
+# ac_fn_cxx_compute_int LINENO EXPR VAR INCLUDES
+# ----------------------------------------------
 # Tries to find the compile-time value of EXPR in a program that includes
 # INCLUDES, setting VAR accordingly. Returns whether the value could be
 # computed
-ac_fn_c_compute_int ()
+ac_fn_cxx_compute_int ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
   if test "$cross_compiling" = yes; then
@@ -2108,7 +2169,7 @@ test_array [0] = 0
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_lo=0 ac_mid=0
   while :; do
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -2124,7 +2185,7 @@ test_array [0] = 0
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_hi=$ac_mid; break
 else
   as_fn_arith $ac_mid + 1 && ac_lo=$as_val
@@ -2150,7 +2211,7 @@ test_array [0] = 0
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_hi=-1 ac_mid=-1
   while :; do
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -2166,7 +2227,7 @@ test_array [0] = 0
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_lo=$ac_mid; break
 else
   as_fn_arith '(' $ac_mid ')' - 1 && ac_hi=$as_val
@@ -2200,7 +2261,7 @@ test_array [0] = 0
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_hi=$ac_mid
 else
   as_fn_arith '(' $ac_mid ')' + 1 && ac_lo=$as_val
@@ -2248,7 +2309,7 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
+if ac_fn_cxx_try_run "$LINENO"; then :
   echo >>conftest.val; read $3 <conftest.val; ac_retval=0
 else
   ac_retval=1
@@ -2261,13 +2322,13 @@ rm -f conftest.val
   eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
   return $ac_retval
 
-} # ac_fn_c_compute_int
+} # ac_fn_cxx_compute_int
 
-# ac_fn_c_check_type LINENO TYPE VAR INCLUDES
-# -------------------------------------------
+# ac_fn_cxx_check_type LINENO TYPE VAR INCLUDES
+# ---------------------------------------------
 # Tests whether TYPE exists after having included INCLUDES, setting cache
 # variable VAR accordingly.
-ac_fn_c_check_type ()
+ac_fn_cxx_check_type ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
@@ -2288,7 +2349,7 @@ if (sizeof ($2))
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $4
@@ -2301,7 +2362,7 @@ if (sizeof (($2)))
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
 else
   eval "$3=yes"
@@ -2315,7 +2376,7 @@ eval ac_res=\$$3
 $as_echo "$ac_res" >&6; }
   eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
 
-} # ac_fn_c_check_type
+} # ac_fn_cxx_check_type
 
 # ac_fn_c_find_intX_t LINENO BITS VAR
 # -----------------------------------
@@ -2345,7 +2406,7 @@ test_array [0] = 0
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $ac_includes_default
@@ -2360,7 +2421,7 @@ test_array [0] = 0
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
 else
   case $ac_type in #(
@@ -2388,10 +2449,10 @@ $as_echo "$ac_res" >&6; }
 
 } # ac_fn_c_find_intX_t
 
-# ac_fn_c_try_link LINENO
-# -----------------------
+# ac_fn_cxx_try_link LINENO
+# -------------------------
 # Try to link conftest.$ac_ext, and return whether this succeeded.
-ac_fn_c_try_link ()
+ac_fn_cxx_try_link ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
   rm -f conftest.$ac_objext conftest$ac_exeext
@@ -2411,7 +2472,7 @@ $as_echo "$ac_try_echo"; } >&5
   fi
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && {
-	 test -z "$ac_c_werror_flag" ||
+	 test -z "$ac_cxx_werror_flag" ||
 	 test ! -s conftest.err
        } && test -s conftest$ac_exeext && {
 	 test "$cross_compiling" = yes ||
@@ -2432,7 +2493,7 @@ fi
   eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
   return $ac_retval
 
-} # ac_fn_c_try_link
+} # ac_fn_cxx_try_link
 
 # ac_fn_c_find_uintX_t LINENO BITS VAR
 # ------------------------------------
@@ -2462,7 +2523,7 @@ test_array [0] = 0
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   case $ac_type in #(
   uint$2_t) :
     eval "$3=yes" ;; #(
@@ -2486,72 +2547,6 @@ $as_echo "$ac_res" >&6; }
 
 } # ac_fn_c_find_uintX_t
 
-# ac_fn_c_check_header_preproc LINENO HEADER VAR
-# ----------------------------------------------
-# Tests whether HEADER is present, setting the cache variable VAR accordingly.
-ac_fn_c_check_header_preproc ()
-{
-  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
-$as_echo_n "checking for $2... " >&6; }
-if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <$2>
-_ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
-  eval "$3=yes"
-else
-  eval "$3=no"
-fi
-rm -f conftest.err conftest.$ac_ext
-fi
-eval ac_res=\$$3
-	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
-
-} # ac_fn_c_check_header_preproc
-
-# ac_fn_cxx_try_cpp LINENO
-# ------------------------
-# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
-ac_fn_cxx_try_cpp ()
-{
-  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  if { { ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
-  ac_status=$?
-  if test -s conftest.err; then
-    grep -v '^ *+' conftest.err >conftest.er1
-    cat conftest.er1 >&5
-    mv -f conftest.er1 conftest.err
-  fi
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; } >/dev/null && {
-	 test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
-	 test ! -s conftest.err
-       }; then :
-  ac_retval=0
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-    ac_retval=1
-fi
-  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
-  return $ac_retval
-
-} # ac_fn_cxx_try_cpp
-
 # ac_fn_cxx_check_header_preproc LINENO HEADER VAR
 # ------------------------------------------------
 # Tests whether HEADER is present, setting the cache variable VAR accordingly.
@@ -2581,10 +2576,10 @@ $as_echo "$ac_res" >&6; }
 
 } # ac_fn_cxx_check_header_preproc
 
-# ac_fn_c_check_func LINENO FUNC VAR
-# ----------------------------------
+# ac_fn_cxx_check_func LINENO FUNC VAR
+# ------------------------------------
 # Tests whether FUNC exists, setting the cache variable VAR accordingly
-ac_fn_c_check_func ()
+ac_fn_cxx_check_func ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
@@ -2633,7 +2628,7 @@ return $2 ();
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_cxx_try_link "$LINENO"; then :
   eval "$3=yes"
 else
   eval "$3=no"
@@ -2646,12 +2641,57 @@ eval ac_res=\$$3
 $as_echo "$ac_res" >&6; }
   eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
 
-} # ac_fn_c_check_func
+} # ac_fn_cxx_check_func
 
-# ac_fn_cxx_try_link LINENO
-# -------------------------
+# ac_fn_cxx_check_decl LINENO SYMBOL VAR
+# --------------------------------------
+# Tests whether SYMBOL is declared, setting cache variable VAR accordingly.
+ac_fn_cxx_check_decl ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  as_decl_name=`echo $2|sed 's/ *(.*//'`
+  as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $as_decl_name is declared" >&5
+$as_echo_n "checking whether $as_decl_name is declared... " >&6; }
+if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+#ifndef $as_decl_name
+#ifdef __cplusplus
+  (void) $as_decl_use;
+#else
+  (void) $as_decl_name;
+#endif
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
+
+} # ac_fn_cxx_check_decl
+
+# ac_fn_c_try_link LINENO
+# -----------------------
 # Try to link conftest.$ac_ext, and return whether this succeeded.
-ac_fn_cxx_try_link ()
+ac_fn_c_try_link ()
 {
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
   rm -f conftest.$ac_objext conftest$ac_exeext
@@ -2671,7 +2711,7 @@ $as_echo "$ac_try_echo"; } >&5
   fi
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; } && {
-	 test -z "$ac_cxx_werror_flag" ||
+	 test -z "$ac_c_werror_flag" ||
 	 test ! -s conftest.err
        } && test -s conftest$ac_exeext && {
 	 test "$cross_compiling" = yes ||
@@ -2692,21 +2732,117 @@ fi
   eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
   return $ac_retval
 
-} # ac_fn_cxx_try_link
-cat >config.log <<_ACEOF
-This file contains any messages produced by compilers while
-running configure, to aid debugging if configure makes a mistake.
-
-It was created by $as_me, which was
-generated by GNU Autoconf 2.64.  Invocation command line was
-
-  $ $0 $@
+} # ac_fn_c_try_link
 
-_ACEOF
-exec 5>>config.log
+# ac_fn_c_check_header_preproc LINENO HEADER VAR
+# ----------------------------------------------
+# Tests whether HEADER is present, setting the cache variable VAR accordingly.
+ac_fn_c_check_header_preproc ()
 {
-cat <<_ASUNAME
-## --------- ##
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <$2>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f conftest.err conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
+
+} # ac_fn_c_check_header_preproc
+
+# ac_fn_c_check_func LINENO FUNC VAR
+# ----------------------------------
+# Tests whether FUNC exists, setting the cache variable VAR accordingly
+ac_fn_c_check_func ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if { as_var=$3; eval "test \"\${$as_var+set}\" = set"; }; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+/* Define $2 to an innocuous variant, in case <limits.h> declares $2.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define $2 innocuous_$2
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $2 (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $2
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char $2 ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined __stub_$2 || defined __stub___$2
+choke me
+#endif
+
+int
+main ()
+{
+return $2 ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
+
+} # ac_fn_c_check_func
+cat >config.log <<_ACEOF
+This file contains any messages produced by compilers while
+running configure, to aid debugging if configure makes a mistake.
+
+It was created by $as_me, which was
+generated by GNU Autoconf 2.64.  Invocation command line was
+
+  $ $0 $@
+
+_ACEOF
+exec 5>>config.log
+{
+cat <<_ASUNAME
+## --------- ##
 ## Platform. ##
 ## --------- ##
 
@@ -3188,7 +3324,7 @@ test -n "$target_alias" &&
     NONENONEs,x,x, &&
   program_prefix=${target_alias}-
 
-# Determine the noncanonical target name, for directory use.
+# Determine the noncanonical host name, for Ada.
  case ${build_alias} in
   "") build_noncanonical=${build} ;;
   *) build_noncanonical=${build_alias} ;;
@@ -3199,6 +3335,10 @@ esac
   *) host_noncanonical=${host_alias} ;;
 esac
 
+
+
+
+# Determine the noncanonical target name, for directory use.
  case ${target_alias} in
   "") target_noncanonical=${host_noncanonical} ;;
   *) target_noncanonical=${target_alias} ;;
@@ -3330,6 +3470,83 @@ if test x$local_prefix = x; then
 	local_prefix=/usr/local
 fi
 
+
+# Check whether --with-native-system-header-dir was given.
+if test "${with_native_system_header_dir+set}" = set; then :
+  withval=$with_native_system_header_dir;
+ case ${with_native_system_header_dir} in
+ yes|no) as_fn_error "bad value ${withval} given for --with-native-system-header-dir" "$LINENO" 5 ;;
+ /* | [A-Za-z]:[\\/]*) ;;
+ *) as_fn_error "--with-native-system-header-dir argument ${withval} must be an absolute directory" "$LINENO" 5 ;;
+ esac
+ configured_native_system_header_dir="${withval}"
+
+else
+  configured_native_system_header_dir=
+fi
+
+
+
+# Check whether --with-build-sysroot was given.
+if test "${with_build_sysroot+set}" = set; then :
+  withval=$with_build_sysroot; if test x"$withval" != x ; then
+     SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
+   fi
+else
+  SYSROOT_CFLAGS_FOR_TARGET=
+fi
+
+
+
+if test "x$prefix" = xNONE; then
+ test_prefix=/usr/local
+else
+ test_prefix=$prefix
+fi
+if test "x$exec_prefix" = xNONE; then
+ test_exec_prefix=$test_prefix
+else
+ test_exec_prefix=$exec_prefix
+fi
+
+
+# Check whether --with-sysroot was given.
+if test "${with_sysroot+set}" = set; then :
+  withval=$with_sysroot;
+ case ${with_sysroot} in
+ /) ;;
+ */) with_sysroot=`echo $with_sysroot | sed 's,/$,,'` ;;
+ esac
+ case ${with_sysroot} in
+ yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
+ *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
+ esac
+
+ TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
+ CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)'
+
+ case ${TARGET_SYSTEM_ROOT} in
+ "${test_prefix}"|"${test_prefix}/"*|\
+ "${test_exec_prefix}"|"${test_exec_prefix}/"*|\
+ '${prefix}'|'${prefix}/'*|\
+ '${exec_prefix}'|'${exec_prefix}/'*)
+   t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
+   TARGET_SYSTEM_ROOT_DEFINE="$t"
+   ;;
+ esac
+
+else
+
+ TARGET_SYSTEM_ROOT=
+ TARGET_SYSTEM_ROOT_DEFINE=
+ CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
+
+fi
+
+
+
+
+
 # Don't set gcc_gxx_include_dir to gxx_include_dir since that's only
 # passed in by the toplevel make and thus we'd get different behavior
 # depending on where we built the sources.
@@ -3363,7 +3580,9 @@ gcc_gxx_include_dir_add_sysroot=0
 if test "${with_sysroot+set}" = set; then
   gcc_gxx_without_sysroot=`expr "${gcc_gxx_include_dir}" : "${with_sysroot}"'\(.*\)'`
   if test "${gcc_gxx_without_sysroot}"; then
-    gcc_gxx_include_dir="${gcc_gxx_without_sysroot}"
+    if test x${with_sysroot} != x/; then
+      gcc_gxx_include_dir="${gcc_gxx_without_sysroot}"
+    fi
     gcc_gxx_include_dir_add_sysroot=1
   fi
 fi
@@ -4768,6 +4987,14 @@ else
 fi
 
 
+# Do configure tests with the C++ compiler, since that's what we build with.
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
 # Remove the -O2: for historical reasons, unless bootstrapping we prefer
 # optimizations to be activated explicitly by the toplevel.
 case "$CC" in
@@ -4786,9 +5013,15 @@ esac
 case "${target}" in
     # PIC is the default on some targets or must not be used.
     *-*-darwin*)
-	# PIC is the default on this platform
-	# Common symbols not allowed in MH_DYLIB files
-	PICFLAG_FOR_TARGET=-fno-common
+	# For darwin, common symbols are not allowed in MH_DYLIB files
+	case "${CFLAGS}" in
+	  # If we are using a compiler supporting mdynamic-no-pic
+	  # and the option has been tested as safe to add, then cancel
+	  # it here, since the code generated is incompatible with shared
+	  # libs.
+	  *-mdynamic-no-pic*) PICFLAG_FOR_TARGET='-fno-common -mno-dynamic-no-pic' ;;
+	  *) PICFLAG_FOR_TARGET=-fno-common ;;
+	esac
 	;;
     alpha*-dec-osf5*)
 	# PIC is the default.
@@ -4800,10 +5033,6 @@ case "${target}" in
 	;;
     i[34567]86-*-mingw* | x86_64-*-mingw*)
 	;;
-    i[34567]86-*-interix[3-9]*)
-	# Interix 3.x gcc -fpic/-fPIC options generate broken code.
-	# Instead, we relocate shared libraries at runtime.
-	;;
     i[34567]86-*-nto-qnx*)
 	# QNX uses GNU C++, but need to define -shared option too, otherwise
 	# it will coredump.
@@ -4834,8 +5063,7 @@ case "${target}" in
 	PICFLAG_FOR_TARGET=-fpic
 	;;
     # FIXME: Simplify to sh*-*-netbsd*?
-    sh-*-netbsdelf* | shl*-*-netbsdelf* | sh5-*-netbsd* | sh5l*-*-netbsd* | \
-      sh64-*-netbsd* | sh64l*-*-netbsd*)
+    sh-*-netbsdelf* | shl*-*-netbsdelf*)
 	PICFLAG_FOR_TARGET=-fpic
 	;;
     # Default to -fPIC unless specified otherwise.
@@ -4861,26 +5089,22 @@ esac
 # -------------------------
 
 
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
-$as_echo_n "checking how to run the C preprocessor... " >&6; }
-# On Suns, sometimes $CPP names a directory.
-if test -n "$CPP" && test -d "$CPP"; then
-  CPP=
-fi
-if test -z "$CPP"; then
-  if test "${ac_cv_prog_CPP+set}" = set; then :
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C++ preprocessor" >&5
+$as_echo_n "checking how to run the C++ preprocessor... " >&6; }
+if test -z "$CXXCPP"; then
+  if test "${ac_cv_prog_CXXCPP+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
-      # Double quotes because CPP needs to be expanded
-    for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
+      # Double quotes because CXXCPP needs to be expanded
+    for CXXCPP in "$CXX -E" "/lib/cpp"
     do
       ac_preproc_ok=false
-for ac_c_preproc_warn_flag in '' yes
+for ac_cxx_preproc_warn_flag in '' yes
 do
   # Use a header file that comes with gcc, so configuring glibc
   # with a fresh cross-compiler works.
@@ -4897,7 +5121,7 @@ do
 #endif
 		     Syntax error
 _ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
+if ac_fn_cxx_try_cpp "$LINENO"; then :
 
 else
   # Broken: fails on valid input.
@@ -4911,7 +5135,7 @@ rm -f conftest.err conftest.$ac_ext
 /* end confdefs.h.  */
 #include <ac_nonexistent.h>
 _ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
+if ac_fn_cxx_try_cpp "$LINENO"; then :
   # Broken: success on invalid input.
 continue
 else
@@ -4929,17 +5153,17 @@ if $ac_preproc_ok; then :
 fi
 
     done
-    ac_cv_prog_CPP=$CPP
+    ac_cv_prog_CXXCPP=$CXXCPP
 
 fi
-  CPP=$ac_cv_prog_CPP
+  CXXCPP=$ac_cv_prog_CXXCPP
 else
-  ac_cv_prog_CPP=$CPP
+  ac_cv_prog_CXXCPP=$CXXCPP
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
-$as_echo "$CPP" >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXXCPP" >&5
+$as_echo "$CXXCPP" >&6; }
 ac_preproc_ok=false
-for ac_c_preproc_warn_flag in '' yes
+for ac_cxx_preproc_warn_flag in '' yes
 do
   # Use a header file that comes with gcc, so configuring glibc
   # with a fresh cross-compiler works.
@@ -4956,7 +5180,7 @@ do
 #endif
 		     Syntax error
 _ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
+if ac_fn_cxx_try_cpp "$LINENO"; then :
 
 else
   # Broken: fails on valid input.
@@ -4970,7 +5194,7 @@ rm -f conftest.err conftest.$ac_ext
 /* end confdefs.h.  */
 #include <ac_nonexistent.h>
 _ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
+if ac_fn_cxx_try_cpp "$LINENO"; then :
   # Broken: success on invalid input.
 continue
 else
@@ -4988,15 +5212,15 @@ if $ac_preproc_ok; then :
 else
   { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
-as_fn_error "C preprocessor \"$CPP\" fails sanity check
+as_fn_error "C++ preprocessor \"$CXXCPP\" fails sanity check
 See \`config.log' for more details." "$LINENO" 5; }
 fi
 
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
@@ -5149,7 +5373,7 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_cv_header_stdc=yes
 else
   ac_cv_header_stdc=no
@@ -5222,7 +5446,7 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
+if ac_fn_cxx_try_run "$LINENO"; then :
 
 else
   ac_cv_header_stdc=no
@@ -5246,7 +5470,7 @@ for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
 		  inttypes.h stdint.h unistd.h
 do :
   as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
-ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
+ac_fn_cxx_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
 "
 eval as_val=\$$as_ac_Header
    if test "x$as_val" = x""yes; then :
@@ -5260,7 +5484,7 @@ done
 
 
 
-  ac_fn_c_check_header_mongrel "$LINENO" "minix/config.h" "ac_cv_header_minix_config_h" "$ac_includes_default"
+  ac_fn_cxx_check_header_mongrel "$LINENO" "minix/config.h" "ac_cv_header_minix_config_h" "$ac_includes_default"
 if test "x$ac_cv_header_minix_config_h" = x""yes; then :
   MINIX=yes
 else
@@ -5299,7 +5523,7 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_cv_safe_to_define___extensions__=yes
 else
   ac_cv_safe_to_define___extensions__=no
@@ -5451,11 +5675,11 @@ as_fn_error "C preprocessor \"$CPP\" fails sanity check
 See \`config.log' for more details." "$LINENO" 5; }
 fi
 
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for inline" >&5
 $as_echo_n "checking for inline... " >&6; }
@@ -5473,7 +5697,7 @@ $ac_kw foo_t foo () {return 0; }
 #endif
 
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_cv_c_inline=$ac_kw
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
@@ -5537,12 +5761,12 @@ main ()
   return 0;
 }
 _ACEOF
-	 if ac_fn_c_try_compile "$LINENO"; then :
+	 if ac_fn_cxx_try_compile "$LINENO"; then :
   break
 fi
 rm -f core conftest.err conftest.$ac_objext
 	 CC="$CC -n32"
-	 if ac_fn_c_try_compile "$LINENO"; then :
+	 if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_cv_sys_largefile_CC=' -n32'; break
 fi
 rm -f core conftest.err conftest.$ac_objext
@@ -5583,7 +5807,7 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_cv_sys_file_offset_bits=no; break
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
@@ -5607,7 +5831,7 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_cv_sys_file_offset_bits=64; break
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
@@ -5652,7 +5876,7 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_cv_sys_large_files=no; break
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
@@ -5676,7 +5900,7 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_cv_sys_large_files=1; break
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
@@ -5709,7 +5933,7 @@ $as_echo_n "checking size of void *... " >&6; }
 if test "${ac_cv_sizeof_void_p+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (void *))" "ac_cv_sizeof_void_p"        "$ac_includes_default"; then :
+  if ac_fn_cxx_compute_int "$LINENO" "(long int) (sizeof (void *))" "ac_cv_sizeof_void_p"        "$ac_includes_default"; then :
 
 else
   if test "$ac_cv_type_void_p" = yes; then
@@ -5743,7 +5967,7 @@ $as_echo_n "checking size of short... " >&6; }
 if test "${ac_cv_sizeof_short+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (short))" "ac_cv_sizeof_short"        "$ac_includes_default"; then :
+  if ac_fn_cxx_compute_int "$LINENO" "(long int) (sizeof (short))" "ac_cv_sizeof_short"        "$ac_includes_default"; then :
 
 else
   if test "$ac_cv_type_short" = yes; then
@@ -5777,7 +6001,7 @@ $as_echo_n "checking size of int... " >&6; }
 if test "${ac_cv_sizeof_int+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (int))" "ac_cv_sizeof_int"        "$ac_includes_default"; then :
+  if ac_fn_cxx_compute_int "$LINENO" "(long int) (sizeof (int))" "ac_cv_sizeof_int"        "$ac_includes_default"; then :
 
 else
   if test "$ac_cv_type_int" = yes; then
@@ -5811,7 +6035,7 @@ $as_echo_n "checking size of long... " >&6; }
 if test "${ac_cv_sizeof_long+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long))" "ac_cv_sizeof_long"        "$ac_includes_default"; then :
+  if ac_fn_cxx_compute_int "$LINENO" "(long int) (sizeof (long))" "ac_cv_sizeof_long"        "$ac_includes_default"; then :
 
 else
   if test "$ac_cv_type_long" = yes; then
@@ -5836,7 +6060,7 @@ cat >>confdefs.h <<_ACEOF
 _ACEOF
 
 
-ac_fn_c_check_type "$LINENO" "long long" "ac_cv_type_long_long" "$ac_includes_default"
+ac_fn_cxx_check_type "$LINENO" "long long" "ac_cv_type_long_long" "$ac_includes_default"
 if test "x$ac_cv_type_long_long" = x""yes; then :
 
 cat >>confdefs.h <<_ACEOF
@@ -5852,7 +6076,7 @@ $as_echo_n "checking size of long long... " >&6; }
 if test "${ac_cv_sizeof_long_long+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
-  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long long))" "ac_cv_sizeof_long_long"        "$ac_includes_default"; then :
+  if ac_fn_cxx_compute_int "$LINENO" "(long int) (sizeof (long long))" "ac_cv_sizeof_long_long"        "$ac_includes_default"; then :
 
 else
   if test "$ac_cv_type_long_long" = yes; then
@@ -5961,7 +6185,7 @@ main ()
 }
 
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_cxx_try_link "$LINENO"; then :
   			if test "$cross_compiling" = yes; then :
   ac_cv_type_long_long_int=yes
 else
@@ -5991,7 +6215,7 @@ long long int n = 1;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
+if ac_fn_cxx_try_run "$LINENO"; then :
   ac_cv_type_long_long_int=yes
 else
   ac_cv_type_long_long_int=no
@@ -6016,7 +6240,7 @@ $as_echo "#define HAVE_LONG_LONG_INT 1" >>confdefs.h
 
 
 
-  ac_fn_c_check_type "$LINENO" "intmax_t" "ac_cv_type_intmax_t" "$ac_includes_default"
+  ac_fn_cxx_check_type "$LINENO" "intmax_t" "ac_cv_type_intmax_t" "$ac_includes_default"
 if test "x$ac_cv_type_intmax_t" = x""yes; then :
 
 $as_echo "#define HAVE_INTMAX_T 1" >>confdefs.h
@@ -6034,7 +6258,7 @@ fi
 
 
 
-  ac_fn_c_check_type "$LINENO" "intptr_t" "ac_cv_type_intptr_t" "$ac_includes_default"
+  ac_fn_cxx_check_type "$LINENO" "intptr_t" "ac_cv_type_intptr_t" "$ac_includes_default"
 if test "x$ac_cv_type_intptr_t" = x""yes; then :
 
 $as_echo "#define HAVE_INTPTR_T 1" >>confdefs.h
@@ -6054,7 +6278,7 @@ test_array [0] = 0
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
 cat >>confdefs.h <<_ACEOF
 #define intptr_t $ac_type
@@ -6160,7 +6384,7 @@ main ()
 }
 
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_cxx_try_link "$LINENO"; then :
   ac_cv_type_unsigned_long_long_int=yes
 else
   ac_cv_type_unsigned_long_long_int=no
@@ -6178,7 +6402,7 @@ $as_echo "#define HAVE_UNSIGNED_LONG_LONG_INT 1" >>confdefs.h
 
 
 
-  ac_fn_c_check_type "$LINENO" "uintmax_t" "ac_cv_type_uintmax_t" "$ac_includes_default"
+  ac_fn_cxx_check_type "$LINENO" "uintmax_t" "ac_cv_type_uintmax_t" "$ac_includes_default"
 if test "x$ac_cv_type_uintmax_t" = x""yes; then :
 
 $as_echo "#define HAVE_UINTMAX_T 1" >>confdefs.h
@@ -6196,7 +6420,7 @@ fi
 
 
 
-  ac_fn_c_check_type "$LINENO" "uintptr_t" "ac_cv_type_uintptr_t" "$ac_includes_default"
+  ac_fn_cxx_check_type "$LINENO" "uintptr_t" "ac_cv_type_uintptr_t" "$ac_includes_default"
 if test "x$ac_cv_type_uintptr_t" = x""yes; then :
 
 $as_echo "#define HAVE_UINTPTR_T 1" >>confdefs.h
@@ -6217,7 +6441,7 @@ test_array [0] = 0
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
 cat >>confdefs.h <<_ACEOF
 #define uintptr_t $ac_type
@@ -6248,13 +6472,6 @@ if test x"$ac_cv_c_uint64_t" = x"no" -o x"$ac_cv_c_int64_t" = x"no"; then
 fi
 
 # check what underlying integer type int64_t uses
-ac_ext=cpp
-ac_cpp='$CXXCPP $CPPFLAGS'
-ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
-
-
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for int64_t underlying type" >&5
 $as_echo_n "checking for int64_t underlying type... " >&6; }
 if test "${ac_cv_int64_t_type+set}" = set; then :
@@ -6318,12 +6535,76 @@ else
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for std::swap in <utility>" >&5
+$as_echo_n "checking for std::swap in <utility>... " >&6; }
+if test "${ac_cv_std_swap_in_utility+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <utility>
+
+int
+main ()
+{
+int a, b; std::swap(a,b);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_cv_std_swap_in_utility=yes
+else
+  ac_cv_std_swap_in_utility=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_std_swap_in_utility" >&5
+$as_echo "$ac_cv_std_swap_in_utility" >&6; }
+if test $ac_cv_std_swap_in_utility = yes; then
+
+$as_echo "#define HAVE_SWAP_IN_UTILITY 1" >>confdefs.h
+
+fi
+
+# Check whether compiler is affected by placement new aliasing bug (PR 29286).
+# If the host compiler is affected by the bug, and we build with optimization
+# enabled (which happens e.g. when cross-compiling), the pool allocator may
+# get miscompiled.  Use -fno-strict-aliasing to work around this problem.
+# Since there is no reliable feature check for the presence of this bug,
+# we simply use a GCC version number check.  (This should never trigger for
+# stages 2 or 3 of a native bootstrap.)
+aliasing_flags=
+if test "$GCC" = yes; then
+  saved_CXXFLAGS="$CXXFLAGS"
+
+  # The following test compilation will succeed if and only if $CXX accepts
+  # -fno-strict-aliasing *and* is older than GCC 4.3.
+  CXXFLAGS="$CXXFLAGS -fno-strict-aliasing"
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX is affected by placement new aliasing bug" >&5
+$as_echo_n "checking whether $CXX is affected by placement new aliasing bug... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
+#error compiler not affected by placement new aliasing bug
+#endif
+
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }; aliasing_flags='-fno-strict-aliasing'
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+  CXXFLAGS="$saved_CXXFLAGS"
+fi
 
 
 
@@ -6353,8 +6634,14 @@ if test $enable_build_format_warnings = no; then :
 else
   wf_opt=
 fi
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
 loose_warn=
-save_CFLAGS="$CFLAGS"
+save_CXXFLAGS="$CXXFLAGS"
 for real_option in -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual $wf_opt; do
   # Do the check with the no- prefix removed since gcc silently
   # accepts any -Wno-* option on purpose
@@ -6364,12 +6651,12 @@ for real_option in -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual $wf_opt;
   esac
   as_acx_Woption=`$as_echo "acx_cv_prog_cc_warning_$option" | $as_tr_sh`
 
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports $option" >&5
-$as_echo_n "checking whether $CC supports $option... " >&6; }
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX supports $option" >&5
+$as_echo_n "checking whether $CXX supports $option... " >&6; }
 if { as_var=$as_acx_Woption; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
-  CFLAGS="$option"
+  CXXFLAGS="$option"
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -6381,7 +6668,7 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   eval "$as_acx_Woption=yes"
 else
   eval "$as_acx_Woption=no"
@@ -6396,7 +6683,20 @@ $as_echo "$ac_res" >&6; }
   loose_warn="$loose_warn${loose_warn:+ }$real_option"
 fi
   done
-CFLAGS="$save_CFLAGS"
+CXXFLAGS="$save_CXXFLAGS"
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 c_loose_warn=
 save_CFLAGS="$CFLAGS"
@@ -6442,9 +6742,21 @@ $as_echo "$ac_res" >&6; }
 fi
   done
 CFLAGS="$save_CFLAGS"
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
 strict_warn=
-save_CFLAGS="$CFLAGS"
+save_CXXFLAGS="$CXXFLAGS"
 for real_option in -Wmissing-format-attribute; do
   # Do the check with the no- prefix removed since gcc silently
   # accepts any -Wno-* option on purpose
@@ -6454,12 +6766,12 @@ for real_option in -Wmissing-format-attribute; do
   esac
   as_acx_Woption=`$as_echo "acx_cv_prog_cc_warning_$option" | $as_tr_sh`
 
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports $option" >&5
-$as_echo_n "checking whether $CC supports $option... " >&6; }
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX supports $option" >&5
+$as_echo_n "checking whether $CXX supports $option... " >&6; }
 if { as_var=$as_acx_Woption; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
-  CFLAGS="$option"
+  CXXFLAGS="$option"
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -6471,7 +6783,7 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   eval "$as_acx_Woption=yes"
 else
   eval "$as_acx_Woption=no"
@@ -6486,9 +6798,21 @@ $as_echo "$ac_res" >&6; }
   strict_warn="$strict_warn${strict_warn:+ }$real_option"
 fi
   done
-CFLAGS="$save_CFLAGS"
+CXXFLAGS="$save_CXXFLAGS"
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
-save_CFLAGS="$CFLAGS"
+
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+save_CXXFLAGS="$CXXFLAGS"
 for real_option in -Woverloaded-virtual; do
   # Do the check with the no- prefix removed since gcc silently
   # accepts any -Wno-* option on purpose
@@ -6498,12 +6822,12 @@ for real_option in -Woverloaded-virtual; do
   esac
   as_acx_Woption=`$as_echo "acx_cv_prog_cc_warning_$option" | $as_tr_sh`
 
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports $option" >&5
-$as_echo_n "checking whether $CC supports $option... " >&6; }
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX supports $option" >&5
+$as_echo_n "checking whether $CXX supports $option... " >&6; }
 if { as_var=$as_acx_Woption; eval "test \"\${$as_var+set}\" = set"; }; then :
   $as_echo_n "(cached) " >&6
 else
-  CFLAGS="$option"
+  CXXFLAGS="$option"
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -6515,7 +6839,7 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   eval "$as_acx_Woption=yes"
 else
   eval "$as_acx_Woption=no"
@@ -6530,7 +6854,19 @@ $as_echo "$ac_res" >&6; }
   strict_warn="$strict_warn${strict_warn:+ }$real_option"
 fi
   done
-CFLAGS="$save_CFLAGS"
+CXXFLAGS="$save_CXXFLAGS"
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 c_strict_warn=
 save_CFLAGS="$CFLAGS"
@@ -6576,17 +6912,29 @@ $as_echo "$ac_res" >&6; }
 fi
   done
 CFLAGS="$save_CFLAGS"
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
 # Do the check with the no- prefix removed from the warning options
 # since gcc silently accepts any -Wno-* option on purpose
-if test "$GCC" = yes; then :
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -pedantic -Wlong-long -Wvariadic-macros -Woverlength-strings" >&5
-$as_echo_n "checking whether $CC supports -pedantic -Wlong-long -Wvariadic-macros -Woverlength-strings... " >&6; }
+if test "$GXX" = yes; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX supports -pedantic -Wlong-long -Wvariadic-macros -Woverlength-strings" >&5
+$as_echo_n "checking whether $CXX supports -pedantic -Wlong-long -Wvariadic-macros -Woverlength-strings... " >&6; }
 if test "${acx_cv_prog_cc_pedantic__Wlong_long__Wvariadic_macros__Woverlength_strings+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
-  save_CFLAGS="$CFLAGS"
-CFLAGS="-pedantic -Wlong-long -Wvariadic-macros -Woverlength-strings"
+  save_CXXFLAGS="$CXXFLAGS"
+CXXFLAGS="-pedantic -Wlong-long -Wvariadic-macros -Woverlength-strings"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -6598,13 +6946,13 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   acx_cv_prog_cc_pedantic__Wlong_long__Wvariadic_macros__Woverlength_strings=yes
 else
   acx_cv_prog_cc_pedantic__Wlong_long__Wvariadic_macros__Woverlength_strings=no
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-CFLAGS="$save_CFLAGS"
+CXXFLAGS="$save_CXXFLAGS"
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $acx_cv_prog_cc_pedantic__Wlong_long__Wvariadic_macros__Woverlength_strings" >&5
 $as_echo "$acx_cv_prog_cc_pedantic__Wlong_long__Wvariadic_macros__Woverlength_strings" >&6; }
@@ -6613,6 +6961,18 @@ if test $acx_cv_prog_cc_pedantic__Wlong_long__Wvariadic_macros__Woverlength_stri
 fi
 
 fi
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
 # Check whether --enable-werror-always was given.
 if test "${enable_werror_always+set}" = set; then :
@@ -6625,6 +6985,12 @@ if test $enable_werror_always = yes; then :
   strict_warn="$strict_warn${strict_warn:+ }-Werror"
 fi
 
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
 
 
 # The above macros do nothing if the compiler is not GCC.  However, the
@@ -6640,6 +7006,12 @@ fi
 
 
 # Disable exceptions and RTTI if building with g++
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
 noexception_flags=
 save_CFLAGS="$CFLAGS"
 for real_option in -fno-exceptions -fno-rtti -fasynchronous-unwind-tables; do
@@ -6684,6 +7056,12 @@ $as_echo "$ac_res" >&6; }
 fi
   done
 CFLAGS="$save_CFLAGS"
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
 
 
 # Enable expensive internal checks
@@ -6699,7 +7077,7 @@ else
 
 # Determine the default checks.
 if test x$is_release = x ; then
-  ac_checking_flags=yes
+  ac_checking_flags=yes,extra
 else
   ac_checking_flags=release
 fi
@@ -6711,32 +7089,33 @@ do
 	case $check in
 	# these set all the flags to specific states
 	yes)		ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking= ;
-			ac_fold_checking= ; ac_gc_checking=1 ;
+			ac_fold_checking= ; ac_gc_checking=1 ; ac_extra_checking= ;
 			ac_gc_always_collect= ; ac_gimple_checking=1 ; ac_rtl_checking= ;
 			ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
 			ac_tree_checking=1 ; ac_valgrind_checking= ;
 			ac_types_checking=1 ;;
 	no|none)	ac_assert_checking= ; ac_checking= ; ac_df_checking= ;
-			ac_fold_checking= ; ac_gc_checking= ;
+			ac_fold_checking= ; ac_gc_checking= ; ac_extra_checking= ;
 			ac_gc_always_collect= ; ac_gimple_checking= ; ac_rtl_checking= ;
 			ac_rtlflag_checking= ; ac_runtime_checking= ;
 			ac_tree_checking= ; ac_valgrind_checking= ;
 			ac_types_checking= ;;
 	all)		ac_assert_checking=1 ; ac_checking=1 ; ac_df_checking=1 ;
-			ac_fold_checking=1 ; ac_gc_checking=1 ;
+			ac_fold_checking=1 ; ac_gc_checking=1 ; ac_extra_checking=1 ;
 			ac_gc_always_collect=1 ; ac_gimple_checking=1 ; ac_rtl_checking=1 ;
 			ac_rtlflag_checking=1 ; ac_runtime_checking=1 ;
 			ac_tree_checking=1 ; ac_valgrind_checking= ;
 			ac_types_checking=1 ;;
 	release)	ac_assert_checking=1 ; ac_checking= ; ac_df_checking= ;
-			ac_fold_checking= ; ac_gc_checking= ;
+			ac_fold_checking= ; ac_gc_checking= ; ac_extra_checking= ;
 			ac_gc_always_collect= ; ac_gimple_checking= ; ac_rtl_checking= ;
 			ac_rtlflag_checking= ; ac_runtime_checking=1 ;
 			ac_tree_checking= ; ac_valgrind_checking= ;
 			ac_types_checking= ;;
 	# these enable particular checks
 	assert) 	ac_assert_checking=1 ;;
-	df)	 	ac_df_checking=1 ;;
+	df)		ac_df_checking=1 ;;
+	extra)		ac_extra_checking=1 ;;
 	fold)		ac_fold_checking=1 ;;
 	gc)		ac_gc_checking=1 ;;
 	gcac)		ac_gc_always_collect=1 ;;
@@ -6755,10 +7134,18 @@ IFS="$ac_save_IFS"
 
 nocommon_flag=""
 if test x$ac_checking != x ; then
+  if test x$ac_extra_checking != x ; then
+    ac_checking=2
+  fi
 
-$as_echo "#define ENABLE_CHECKING 1" >>confdefs.h
+cat >>confdefs.h <<_ACEOF
+#define CHECKING_P $ac_checking
+_ACEOF
 
   nocommon_flag=-fno-common
+else
+  $as_echo "#define CHECKING_P 0" >>confdefs.h
+
 fi
 
 if test x$ac_df_checking != x ; then
@@ -6786,7 +7173,6 @@ if test x$ac_tree_checking != x ; then
 
 $as_echo "#define ENABLE_TREE_CHECKING 1" >>confdefs.h
 
-  TREEBROWSER=tree-browser.o
   TREECHECKING=yes
 fi
 if test x$ac_types_checking != x ; then
@@ -6795,7 +7181,6 @@ $as_echo "#define ENABLE_TYPES_CHECKING 1" >>confdefs.h
 
 fi
 
-
 if test x$ac_rtl_checking != x ; then
 
 $as_echo "#define ENABLE_RTL_CHECKING 1" >>confdefs.h
@@ -6824,7 +7209,7 @@ fi
 valgrind_path_defines=
 valgrind_command=
 
-ac_fn_c_check_header_mongrel "$LINENO" "valgrind.h" "ac_cv_header_valgrind_h" "$ac_includes_default"
+ac_fn_cxx_check_header_mongrel "$LINENO" "valgrind.h" "ac_cv_header_valgrind_h" "$ac_includes_default"
 if test "x$ac_cv_header_valgrind_h" = x""yes; then :
   have_valgrind_h=yes
 else
@@ -6844,7 +7229,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 #error VALGRIND_DISCARD not defined
 #endif
 _ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
+if ac_fn_cxx_try_cpp "$LINENO"; then :
   gcc_cv_header_valgrind_memcheck_h=yes
 else
   gcc_cv_header_valgrind_memcheck_h=no
@@ -6861,7 +7246,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 #error VALGRIND_DISCARD not defined
 #endif
 _ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
+if ac_fn_cxx_try_cpp "$LINENO"; then :
   gcc_cv_header_memcheck_h=yes
 else
   gcc_cv_header_memcheck_h=no
@@ -7097,7 +7482,7 @@ else
 
   case $target in
     powerpc*-*-linux* | i?86*-*-linux* | x86_64*-*-linux* | s390*-*-linux* | \
-    i?86*-*-gnu* | \
+    i?86*-*-elfiamcu | i?86*-*-gnu* | \
     i?86*-*-mingw* | x86_64*-*-mingw* | \
     i?86*-*-cygwin* | x86_64*-*-cygwin*)
       enable_decimal_float=yes
@@ -7209,6 +7594,20 @@ else
 fi
 
 
+# Check whether --enable-vtable-verify was given.
+if test "${enable_vtable_verify+set}" = set; then :
+  enableval=$enable_vtable_verify;
+else
+  enable_vtable_verify=no
+fi
+
+vtable_verify=`if test x$enable_vtable_verify = xyes; then echo 1; else echo 0; fi`
+
+cat >>confdefs.h <<_ACEOF
+#define ENABLE_VTABLE_VERIFY $vtable_verify
+_ACEOF
+
+
 # Check whether --enable-objc-gc was given.
 if test "${enable_objc_gc+set}" = set; then :
   enableval=$enable_objc_gc; if test x$enable_objc_gc = xno; then
@@ -7254,101 +7653,28 @@ fi
 
 
 
-# Check whether --with-native-system-header-dir was given.
-if test "${with_native_system_header_dir+set}" = set; then :
-  withval=$with_native_system_header_dir;
- case ${with_native_system_header_dir} in
- yes|no) as_fn_error "bad value ${withval} given for --with-native-system-header-dir" "$LINENO" 5 ;;
- /* | [A-Za-z]:[\\/]*) ;;
- *) as_fn_error "--with-native-system-header-dir argument ${withval} must be an absolute directory" "$LINENO" 5 ;;
- esac
- configured_native_system_header_dir="${withval}"
-
+# Check whether --with-specs was given.
+if test "${with_specs+set}" = set; then :
+  withval=$with_specs; CONFIGURE_SPECS=$withval
 else
-  configured_native_system_header_dir=
+  CONFIGURE_SPECS=
+
 fi
 
 
 
-# Check whether --with-build-sysroot was given.
-if test "${with_build_sysroot+set}" = set; then :
-  withval=$with_build_sysroot; if test x"$withval" != x ; then
-     SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
-   fi
+
+
+# Check whether --with-pkgversion was given.
+if test "${with_pkgversion+set}" = set; then :
+  withval=$with_pkgversion; case "$withval" in
+      yes) as_fn_error "package version not specified" "$LINENO" 5 ;;
+      no)  PKGVERSION= ;;
+      *)   PKGVERSION="($withval) " ;;
+     esac
 else
-  SYSROOT_CFLAGS_FOR_TARGET=
-fi
-
-
-
-if test "x$prefix" = xNONE; then
- test_prefix=/usr/local
-else
- test_prefix=$prefix
-fi
-if test "x$exec_prefix" = xNONE; then
- test_exec_prefix=$test_prefix
-else
- test_exec_prefix=$exec_prefix
-fi
-
-
-# Check whether --with-sysroot was given.
-if test "${with_sysroot+set}" = set; then :
-  withval=$with_sysroot;
- case ${with_sysroot} in
- yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_noncanonical}/sys-root' ;;
- *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
- esac
-
- TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
- CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)'
-
- case ${TARGET_SYSTEM_ROOT} in
- "${test_prefix}"|"${test_prefix}/"*|\
- "${test_exec_prefix}"|"${test_exec_prefix}/"*|\
- '${prefix}'|'${prefix}/'*|\
- '${exec_prefix}'|'${exec_prefix}/'*)
-   t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
-   TARGET_SYSTEM_ROOT_DEFINE="$t"
-   ;;
- esac
-
-else
-
- TARGET_SYSTEM_ROOT=
- TARGET_SYSTEM_ROOT_DEFINE=
- CROSS_SYSTEM_HEADER_DIR='$(gcc_tooldir)/sys-include'
-
-fi
-
-
-
-
-
-
-# Check whether --with-specs was given.
-if test "${with_specs+set}" = set; then :
-  withval=$with_specs; CONFIGURE_SPECS=$withval
-else
-  CONFIGURE_SPECS=
-
-fi
-
-
-
-
-
-# Check whether --with-pkgversion was given.
-if test "${with_pkgversion+set}" = set; then :
-  withval=$with_pkgversion; case "$withval" in
-      yes) as_fn_error "package version not specified" "$LINENO" 5 ;;
-      no)  PKGVERSION= ;;
-      *)   PKGVERSION="($withval) " ;;
-     esac
-else
-  PKGVERSION="(GCC) "
-
+  PKGVERSION="(GCC) "
+
 fi
 
 
@@ -7430,10 +7756,17 @@ fi
 
 for tgt in `echo $enable_offload_targets | sed 's/,/ /g'`; do
   tgt=`echo $tgt | sed 's/=.*//'`
+
+  if echo "$tgt" | grep "^hsa" > /dev/null ; then
+    enable_hsa=1
+  else
+    enable_offloading=1
+  fi
+
   if test x"$offload_targets" = x; then
     offload_targets=$tgt
   else
-    offload_targets="$offload_targets:$tgt"
+    offload_targets="$offload_targets,$tgt"
   fi
 done
 
@@ -7441,10 +7774,20 @@ cat >>confdefs.h <<_ACEOF
 #define OFFLOAD_TARGETS "$offload_targets"
 _ACEOF
 
-if test x"$offload_targets" != x; then
+if test x"$enable_offloading" != x; then
 
 $as_echo "#define ENABLE_OFFLOADING 1" >>confdefs.h
 
+else
+
+$as_echo "#define ENABLE_OFFLOADING 0" >>confdefs.h
+
+fi
+
+if test x"$enable_hsa" = x1 ; then
+
+$as_echo "#define ENABLE_HSA 1" >>confdefs.h
+
 fi
 
 
@@ -8187,7 +8530,7 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_cv_header_stdc=yes
 else
   ac_cv_header_stdc=no
@@ -8260,7 +8603,7 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
+if ac_fn_cxx_try_run "$LINENO"; then :
 
 else
   ac_cv_header_stdc=no
@@ -8299,7 +8642,7 @@ return 0;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_cv_header_time=yes
 else
   ac_cv_header_time=no
@@ -8331,7 +8674,7 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   gcc_cv_header_string=yes
 else
   gcc_cv_header_string=no
@@ -8372,7 +8715,7 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_cv_header_sys_wait_h=yes
 else
   ac_cv_header_sys_wait_h=no
@@ -8453,7 +8796,7 @@ for ac_header in limits.h stddef.h string.h strings.h stdlib.h time.h iconv.h \
 		 direct.h malloc.h langinfo.h ldfcn.h locale.h wchar.h
 do :
   as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
-ac_fn_c_check_header_preproc "$LINENO" "$ac_header" "$as_ac_Header"
+ac_fn_cxx_check_header_preproc "$LINENO" "$ac_header" "$as_ac_Header"
 eval as_val=\$$as_ac_Header
    if test "x$as_val" = x""yes; then :
   cat >>confdefs.h <<_ACEOF
@@ -8465,14 +8808,14 @@ done
 
 
 # Check for thread headers.
-ac_fn_c_check_header_preproc "$LINENO" "thread.h" "ac_cv_header_thread_h"
+ac_fn_cxx_check_header_preproc "$LINENO" "thread.h" "ac_cv_header_thread_h"
 if test "x$ac_cv_header_thread_h" = x""yes; then :
   have_thread_h=yes
 else
   have_thread_h=
 fi
 
-ac_fn_c_check_header_preproc "$LINENO" "pthread.h" "ac_cv_header_pthread_h"
+ac_fn_cxx_check_header_preproc "$LINENO" "pthread.h" "ac_cv_header_pthread_h"
 if test "x$ac_cv_header_pthread_h" = x""yes; then :
   have_pthread_h=yes
 else
@@ -8530,7 +8873,7 @@ switch(0) {
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   gcc_cv_c_nbby=$i; break
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
@@ -8566,7 +8909,7 @@ else
 	     typedef int dummy;
 
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
 	# Check for potential -arch flags.  It is not universal unless
 	# there are at least two -arch flags with different values.
@@ -8611,7 +8954,7 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   # It does; now see whether it defined to BIG_ENDIAN or not.
 	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -8629,7 +8972,7 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_cv_c_bigendian=yes
 else
   ac_cv_c_bigendian=no
@@ -8655,7 +8998,7 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   # It does; now see whether it defined to _BIG_ENDIAN or not.
 	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -8672,7 +9015,7 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_cv_c_bigendian=yes
 else
   ac_cv_c_bigendian=no
@@ -8711,7 +9054,7 @@ return use_ascii (foo) == use_ebcdic (foo);
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   if grep BIGenDianSyS conftest.$ac_objext >/dev/null; then
 	      ac_cv_c_bigendian=yes
 	    fi
@@ -8746,7 +9089,7 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
+if ac_fn_cxx_try_run "$LINENO"; then :
   ac_cv_c_bigendian=no
 else
   ac_cv_c_bigendian=yes
@@ -8909,13 +9252,6 @@ $as_echo "$as_me: WARNING: C++ preprocessor \"$CXXCPP\" fails sanity check
 See \`config.log' for more details." >&2;}; }
 fi
 
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
-
 ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -8923,7 +9259,6 @@ ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ex
 ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
 
-
 for ac_header in unordered_map
 do :
   ac_fn_cxx_check_header_preproc "$LINENO" "unordered_map" "ac_cv_header_unordered_map"
@@ -8958,23 +9293,10 @@ fi
 done
 
 
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
-
 # --------
 # Dependency checking.
 # --------
 
-ac_ext=cpp
-ac_cpp='$CXXCPP $CPPFLAGS'
-ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
-
 rm -rf .tst 2>/dev/null
 mkdir .tst 2>/dev/null
 if test -d .tst; then
@@ -9088,12 +9410,6 @@ else CXXDEPMODE=depmode=$am_cv_CXX_dependencies_compiler_type
 
 fi
 
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
 
 # --------
 # UNSORTED
@@ -9131,7 +9447,7 @@ return ldopen ();
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_cxx_try_link "$LINENO"; then :
   gcc_cv_collect2_libs="$libs"; break
 fi
 rm -f core conftest.err conftest.$ac_objext \
@@ -9183,7 +9499,7 @@ for ac_lib in '' exc; do
     ac_res=-l$ac_lib
     LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
   fi
-  if ac_fn_c_try_link "$LINENO"; then :
+  if ac_fn_cxx_try_link "$LINENO"; then :
   ac_cv_search_exc_resume=$ac_res
 fi
 rm -f core conftest.err conftest.$ac_objext \
@@ -9246,7 +9562,7 @@ for ac_lib in '' kstat; do
     ac_res=-l$ac_lib
     LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
   fi
-  if ac_fn_c_try_link "$LINENO"; then :
+  if ac_fn_cxx_try_link "$LINENO"; then :
   ac_cv_search_kstat_open=$ac_res
 fi
 rm -f core conftest.err conftest.$ac_objext \
@@ -9310,7 +9626,7 @@ for ac_lib in '' m; do
     ac_res=-l$ac_lib
     LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
   fi
-  if ac_fn_c_try_link "$LINENO"; then :
+  if ac_fn_cxx_try_link "$LINENO"; then :
   ac_cv_search_ldexp=$ac_res
 fi
 rm -f core conftest.err conftest.$ac_objext \
@@ -9363,7 +9679,7 @@ choke me
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   gcc_cv_header_inttypes_h=yes
 else
   gcc_cv_header_inttypes_h=no
@@ -9381,13 +9697,13 @@ fi
 
 
 
-for ac_func in times clock kill getrlimit setrlimit atoll atoq \
+for ac_func in times clock kill getrlimit setrlimit atoq \
 	popen sysconf strsignal getrusage nl_langinfo \
 	gettimeofday mbstowcs wcswidth mmap setlocale \
 	clearerr_unlocked feof_unlocked   ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked   fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked   fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked   putchar_unlocked putc_unlocked madvise
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
-ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+ac_fn_cxx_check_func "$LINENO" "$ac_func" "$as_ac_var"
 eval as_val=\$$as_ac_var
    if test "x$as_val" = x""yes; then :
   cat >>confdefs.h <<_ACEOF
@@ -9416,7 +9732,7 @@ int main()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
+if ac_fn_cxx_try_run "$LINENO"; then :
   gcc_cv_func_mbstowcs_works=yes
 else
   gcc_cv_func_mbstowcs_works=no
@@ -9435,7 +9751,7 @@ $as_echo "#define HAVE_WORKING_MBSTOWCS 1" >>confdefs.h
   fi
 fi
 
-ac_fn_c_check_type "$LINENO" "ssize_t" "ac_cv_type_ssize_t" "$ac_includes_default"
+ac_fn_cxx_check_type "$LINENO" "ssize_t" "ac_cv_type_ssize_t" "$ac_includes_default"
 if test "x$ac_cv_type_ssize_t" = x""yes; then :
 
 else
@@ -9446,7 +9762,7 @@ _ACEOF
 
 fi
 
-ac_fn_c_check_type "$LINENO" "caddr_t" "ac_cv_type_caddr_t" "$ac_includes_default"
+ac_fn_cxx_check_type "$LINENO" "caddr_t" "ac_cv_type_caddr_t" "$ac_includes_default"
 if test "x$ac_cv_type_caddr_t" = x""yes; then :
 
 else
@@ -9459,14 +9775,14 @@ fi
 
 
 
-ac_fn_c_check_header_preproc "$LINENO" "sys/mman.h" "ac_cv_header_sys_mman_h"
+ac_fn_cxx_check_header_preproc "$LINENO" "sys/mman.h" "ac_cv_header_sys_mman_h"
 if test "x$ac_cv_header_sys_mman_h" = x""yes; then :
   gcc_header_sys_mman_h=yes
 else
   gcc_header_sys_mman_h=no
 fi
 
-ac_fn_c_check_func "$LINENO" "mmap" "ac_cv_func_mmap"
+ac_fn_cxx_check_func "$LINENO" "mmap" "ac_cv_func_mmap"
 if test "x$ac_cv_func_mmap" = x""yes; then :
   gcc_func_mmap=yes
 else
@@ -9547,7 +9863,7 @@ int n = MAP_ANONYMOUS;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   gcc_cv_decl_map_anon=yes
 else
   gcc_cv_decl_map_anon=no
@@ -9607,7 +9923,7 @@ case "${host}" in
   ac_cv_func_vfork_works=yes
   ;;
 esac
-ac_fn_c_check_type "$LINENO" "pid_t" "ac_cv_type_pid_t" "$ac_includes_default"
+ac_fn_cxx_check_type "$LINENO" "pid_t" "ac_cv_type_pid_t" "$ac_includes_default"
 if test "x$ac_cv_type_pid_t" = x""yes; then :
 
 else
@@ -9620,7 +9936,7 @@ fi
 
 for ac_header in vfork.h
 do :
-  ac_fn_c_check_header_preproc "$LINENO" "vfork.h" "ac_cv_header_vfork_h"
+  ac_fn_cxx_check_header_preproc "$LINENO" "vfork.h" "ac_cv_header_vfork_h"
 if test "x$ac_cv_header_vfork_h" = x""yes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_VFORK_H 1
@@ -9632,7 +9948,7 @@ done
 for ac_func in fork vfork
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
-ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+ac_fn_cxx_check_func "$LINENO" "$ac_func" "$as_ac_var"
 eval as_val=\$$as_ac_var
    if test "x$as_val" = x""yes; then :
   cat >>confdefs.h <<_ACEOF
@@ -9665,7 +9981,7 @@ main ()
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
+if ac_fn_cxx_try_run "$LINENO"; then :
   ac_cv_func_fork_works=yes
 else
   ac_cv_func_fork_works=no
@@ -9796,7 +10112,7 @@ main ()
   }
 }
 _ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
+if ac_fn_cxx_try_run "$LINENO"; then :
   ac_cv_func_vfork_works=yes
 else
   ac_cv_func_vfork_works=no
@@ -9832,14 +10148,6 @@ $as_echo "#define HAVE_WORKING_FORK 1" >>confdefs.h
 fi
 
 
-# g++ on Solaris 10+ defines _XOPEN_SOURCE=600, which exposes a different
-# iconv() prototype.
-ac_ext=cpp
-ac_cpp='$CXXCPP $CPPFLAGS'
-ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
-
 
       if test "X$prefix" = "XNONE"; then
     acl_final_prefix="$ac_default_prefix"
@@ -10386,31 +10694,6 @@ fi
 
 
 
-          am_save_CPPFLAGS="$CPPFLAGS"
-
-  for element in $INCICONV; do
-    haveit=
-    for x in $CPPFLAGS; do
-
-  acl_save_prefix="$prefix"
-  prefix="$acl_final_prefix"
-  acl_save_exec_prefix="$exec_prefix"
-  exec_prefix="$acl_final_exec_prefix"
-  eval x=\"$x\"
-  exec_prefix="$acl_save_exec_prefix"
-  prefix="$acl_save_prefix"
-
-      if test "X$x" = "X$element"; then
-        haveit=yes
-        break
-      fi
-    done
-    if test -z "$haveit"; then
-      CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }$element"
-    fi
-  done
-
-
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for iconv" >&5
 $as_echo_n "checking for iconv... " >&6; }
 if test "${am_cv_func_iconv+set}" = set; then :
@@ -10419,6 +10702,8 @@ else
 
     am_cv_func_iconv="no, consider installing GNU libiconv"
     am_cv_lib_iconv=no
+                    am_save_CPPFLAGS="$CPPFLAGS"
+    CPPFLAGS="$CPPFLAGS $INCICONV"
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdlib.h>
@@ -10438,8 +10723,49 @@ if ac_fn_cxx_try_link "$LINENO"; then :
 fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
+    CPPFLAGS="$am_save_CPPFLAGS"
+
+    if test "$am_cv_func_iconv" != yes && test -d ../libiconv; then
+      for _libs in .libs _libs; do
+        am_save_CPPFLAGS="$CPPFLAGS"
+        am_save_LIBS="$LIBS"
+        CPPFLAGS="$CPPFLAGS -I../libiconv/include"
+        LIBS="$LIBS ../libiconv/lib/$_libs/libiconv.a"
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+#include <iconv.h>
+int
+main ()
+{
+iconv_t cd = iconv_open("","");
+           iconv(cd,NULL,NULL,NULL,NULL);
+           iconv_close(cd);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  INCICONV="-I../libiconv/include"
+          LIBICONV='${top_builddir}'/../libiconv/lib/$_libs/libiconv.a
+          LTLIBICONV='${top_builddir}'/../libiconv/lib/libiconv.la
+          am_cv_lib_iconv=yes
+          am_cv_func_iconv=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+        CPPFLAGS="$am_save_CPPFLAGS"
+        LIBS="$am_save_LIBS"
+        if test "$am_cv_func_iconv" = "yes"; then
+          break
+        fi
+      done
+    fi
+
     if test "$am_cv_func_iconv" != yes; then
+      am_save_CPPFLAGS="$CPPFLAGS"
       am_save_LIBS="$LIBS"
+      CPPFLAGS="$LIBS $INCICONV"
       LIBS="$LIBS $LIBICONV"
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -10461,6 +10787,7 @@ if ac_fn_cxx_try_link "$LINENO"; then :
 fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
+      CPPFLAGS="$am_save_CPPFLAGS"
       LIBS="$am_save_LIBS"
     fi
 
@@ -10473,12 +10800,34 @@ $as_echo "#define HAVE_ICONV 1" >>confdefs.h
 
   fi
   if test "$am_cv_lib_iconv" = yes; then
+
+  for element in $INCICONV; do
+    haveit=
+    for x in $CPPFLAGS; do
+
+  acl_save_prefix="$prefix"
+  prefix="$acl_final_prefix"
+  acl_save_exec_prefix="$exec_prefix"
+  exec_prefix="$acl_final_exec_prefix"
+  eval x=\"$x\"
+  exec_prefix="$acl_save_exec_prefix"
+  prefix="$acl_save_prefix"
+
+      if test "X$x" = "X$element"; then
+        haveit=yes
+        break
+      fi
+    done
+    if test -z "$haveit"; then
+      CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }$element"
+    fi
+  done
+
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to link with libiconv" >&5
 $as_echo_n "checking how to link with libiconv... " >&6; }
     { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LIBICONV" >&5
 $as_echo "$LIBICONV" >&6; }
   else
-            CPPFLAGS="$am_save_CPPFLAGS"
     LIBICONV=
     LTLIBICONV=
   fi
@@ -10536,15 +10885,12 @@ _ACEOF
 
   fi
 
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
 
 # Until we have in-tree GNU iconv:
 LIBICONV_DEP=
+if test -f "$LTLIBICONV"; then
+  LIBICONV_DEP=$LTLIBICONV
+fi
 
 
 
@@ -10564,7 +10910,7 @@ return LC_MESSAGES
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_cxx_try_link "$LINENO"; then :
   am_cv_val_LC_MESSAGES=yes
 else
   am_cv_val_LC_MESSAGES=no
@@ -10598,7 +10944,7 @@ char* cs = nl_langinfo(CODESET);
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_cxx_try_link "$LINENO"; then :
   am_cv_langinfo_codeset=yes
 else
   am_cv_langinfo_codeset=no
@@ -10621,11 +10967,48 @@ saved_CFLAGS="$CFLAGS"
 CFLAGS="$CFLAGS -I${srcdir} -I${srcdir}/../include $GMPINC"
 saved_CXXFLAGS="$CXXFLAGS"
 CXXFLAGS="$CXXFLAGS -I${srcdir} -I${srcdir}/../include $GMPINC"
-for ac_func in getenv atol asprintf sbrk abort atof getcwd getwd \
-	stpcpy strnlen strsignal strstr strverscmp \
-	strtol strtoul strtoll strtoull \
+
+# gcc_AC_CHECK_DECLS doesn't support overloaded functions, so use the
+# normal autoconf function for these.  But force definition of
+# HAVE_DECL_BASENAME like gcc_AC_CHECK_DECLS does, to suppress the bizarre
+# basename handling in libiberty.h.
+ac_fn_cxx_check_decl "$LINENO" "basename(const char*)" "ac_cv_have_decl_basename_const_charp_" "
+#undef HAVE_DECL_BASENAME
+#define HAVE_DECL_BASENAME 1
+#include \"ansidecl.h\"
+#include \"system.h\"
+"
+if test "x$ac_cv_have_decl_basename_const_charp_" = x""yes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_BASENAME $ac_have_decl
+_ACEOF
+ac_fn_cxx_check_decl "$LINENO" "strstr(const char*,const char*)" "ac_cv_have_decl_strstr_const_charp_const_charp_" "
+#undef HAVE_DECL_BASENAME
+#define HAVE_DECL_BASENAME 1
+#include \"ansidecl.h\"
+#include \"system.h\"
+"
+if test "x$ac_cv_have_decl_strstr_const_charp_const_charp_" = x""yes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_STRSTR $ac_have_decl
+_ACEOF
+
+
+for ac_func in getenv atol atoll asprintf sbrk abort atof getcwd getwd \
+	madvise stpcpy strnlen strsignal strverscmp \
+	strtol strtoul strtoll strtoull setenv unsetenv \
 	errno snprintf vsnprintf vasprintf malloc realloc calloc \
-	free basename getopt clock getpagesize ffs clearerr_unlocked feof_unlocked   ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked   fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked   fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked   putchar_unlocked putc_unlocked
+	free getopt clock getpagesize ffs clearerr_unlocked feof_unlocked   ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked   fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked   fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked   putchar_unlocked putc_unlocked
 do
   ac_tr_decl=`$as_echo "HAVE_DECL_$ac_func" | $as_tr_cpp`
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $ac_func is declared" >&5
@@ -10651,7 +11034,7 @@ char *(*pfn) = (char *(*)) $ac_func ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   eval "gcc_cv_have_decl_$ac_func=yes"
 else
   eval "gcc_cv_have_decl_$ac_func=no"
@@ -10706,7 +11089,7 @@ char *(*pfn) = (char *(*)) $ac_func ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   eval "gcc_cv_have_decl_$ac_func=yes"
 else
   eval "gcc_cv_have_decl_$ac_func=no"
@@ -10748,7 +11131,7 @@ rlim_t l = 0;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
 
 else
 
@@ -10793,7 +11176,7 @@ char *(*pfn) = (char *(*)) $ac_func ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   eval "gcc_cv_have_decl_$ac_func=yes"
 else
   eval "gcc_cv_have_decl_$ac_func=no"
@@ -10848,7 +11231,7 @@ char *(*pfn) = (char *(*)) $ac_func ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   eval "gcc_cv_have_decl_$ac_func=yes"
 else
   eval "gcc_cv_have_decl_$ac_func=no"
@@ -10901,7 +11284,7 @@ char *(*pfn) = (char *(*)) $ac_func ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   eval "gcc_cv_have_decl_$ac_func=yes"
 else
   eval "gcc_cv_have_decl_$ac_func=no"
@@ -10926,72 +11309,6 @@ fi
 done
 
 
-# g++ on Solaris 10+ defines _XOPEN_SOURCE=600, which hides the madvise()
-# prototype.
-ac_ext=cpp
-ac_cpp='$CXXCPP $CPPFLAGS'
-ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
-
-for ac_func in madvise
-do
-  ac_tr_decl=`$as_echo "HAVE_DECL_$ac_func" | $as_tr_cpp`
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $ac_func is declared" >&5
-$as_echo_n "checking whether $ac_func is declared... " >&6; }
-if { as_var=gcc_cv_have_decl_$ac_func; eval "test \"\${$as_var+set}\" = set"; }; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#undef $ac_tr_decl
-#define $ac_tr_decl 1
-
-  #include "ansidecl.h"
-  #include "system.h"
-
-
-int
-main ()
-{
-#ifndef $ac_func
-char *(*pfn) = (char *(*)) $ac_func ;
-#endif
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_cxx_try_compile "$LINENO"; then :
-  eval "gcc_cv_have_decl_$ac_func=yes"
-else
-  eval "gcc_cv_have_decl_$ac_func=no"
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-
-if eval "test \"`echo '$gcc_cv_have_decl_'$ac_func`\" = yes"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
-$as_echo "yes" >&6; } ; cat >>confdefs.h <<_ACEOF
-#define $ac_tr_decl 1
-_ACEOF
-
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; } ; cat >>confdefs.h <<_ACEOF
-#define $ac_tr_decl 0
-_ACEOF
-
-fi
-
-done
-
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
-
 # More time-related stuff.
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for struct tms" >&5
 $as_echo_n "checking for struct tms... " >&6; }
@@ -11016,7 +11333,7 @@ struct tms tms;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_cv_struct_tms=yes
 else
   ac_cv_struct_tms=no
@@ -11053,7 +11370,7 @@ clock_t x;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   gcc_cv_type_clock_t=yes
 else
   gcc_cv_type_clock_t=no
@@ -11093,7 +11410,7 @@ return fcntl (1, F_SETLKW, &fl);
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   ac_cv_f_setlkw=yes
 else
   ac_cv_f_setlkw=no
@@ -11139,7 +11456,7 @@ mkdir ("foo", 0);
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   gcc_cv_mkdir_takes_one_arg=no
 else
   gcc_cv_mkdir_takes_one_arg=yes
@@ -11368,7 +11685,7 @@ else
 int main() { mcontext_t m; if (m->ss.srr0) return 0; return 0; }
 
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
+if ac_fn_cxx_try_compile "$LINENO"; then :
   gcc_cv_mcontext_underscores=no
 else
   gcc_cv_mcontext_underscores=yes
@@ -11433,7 +11750,7 @@ if test x$enable___cxa_atexit = xyes || \
 	use_cxa_atexit=yes
 	;;
       *)
-	ac_fn_c_check_func "$LINENO" "__cxa_atexit" "ac_cv_func___cxa_atexit"
+	ac_fn_cxx_check_func "$LINENO" "__cxa_atexit" "ac_cv_func___cxa_atexit"
 if test "x$ac_cv_func___cxa_atexit" = x""yes; then :
   use_cxa_atexit=yes
 else
@@ -11713,7 +12030,7 @@ fi
 
 
 case $host_os in
-  win32 | pe | cygwin* | mingw32* | uwin*)
+  win32 | pe | cygwin* | mingw32*)
     if test "x$enable_win32_registry" != xno; then
       { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing RegOpenKeyExA" >&5
 $as_echo_n "checking for library containing RegOpenKeyExA... " >&6; }
@@ -11746,7 +12063,7 @@ for ac_lib in '' advapi32; do
     ac_res=-l$ac_lib
     LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
   fi
-  if ac_fn_c_try_link "$LINENO"; then :
+  if ac_fn_cxx_try_link "$LINENO"; then :
   ac_cv_search_RegOpenKeyExA=$ac_res
 fi
 rm -f core conftest.err conftest.$ac_objext \
@@ -11968,7 +12285,7 @@ elif test "x$TARGET_SYSTEM_ROOT" != x; then
 fi
 
 if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
-  if test "x$with_headers" != x; then
+  if test "x$with_headers" != x && test "x$with_headers" != xyes; then
     target_header_dir=$with_headers
   elif test "x$with_sysroot" = x; then
     target_header_dir="${test_exec_prefix}/${target_noncanonical}/sys-include"
@@ -12011,14 +12328,24 @@ BUILD_CXXFLAGS='$(ALL_CXXFLAGS)'
 BUILD_LDFLAGS='$(LDFLAGS)'
 STMP_FIXINC=stmp-fixinc
 
+BUILD_NO_PIE_CFLAGS='$(NO_PIE_CFLAGS)'
+BUILD_NO_PIE_FLAG='$(NO_PIE_FLAG)'
+
 # And these apply if build != host, or we are generating coverage data
 if test x$build != x$host || test "x$coverage_flags" != x
 then
     BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
     BUILD_CXXFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CXXFLAGS_FOR_BUILD)'
     BUILD_LDFLAGS='$(LDFLAGS_FOR_BUILD)'
+
+    NO_PIE_CFLAGS_FOR_BUILD=${NO_PIE_CFLAGS_FOR_BUILD-${NO_PIE_CFLAGS}}
+    NO_PIE_FLAG_FOR_BUILD=${NO_PIE_FLAG_FOR_BUILD-${NO_PIE_FLAG}}
+    BUILD_NO_PIE_CFLAGS='$(NO_PIE_CFLAGS_FOR_BUILD)'
+    BUILD_NO_PIE_FLAG='$(NO_PIE_FLAG_FOR_BUILD)'
 fi
 
+
+
 # Expand extra_headers to include complete path.
 # This substitutes for lots of t-* files.
 extra_headers_list=
@@ -14658,6 +14985,7 @@ $as_echo "$lt_cv_ld_force_load" >&6; }
     ;;
   esac
 
+
 for ac_header in dlfcn.h
 do :
   ac_fn_c_check_header_preproc "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h"
@@ -16119,7 +16447,7 @@ _LT_EOF
 	if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
 	  export_symbols_cmds='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
 	else
-	  export_symbols_cmds='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+	  export_symbols_cmds='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "L")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
 	fi
 	aix_use_runtimelinking=no
 
@@ -18147,7 +18475,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 18150 "configure"
+#line 18478 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -18253,7 +18581,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 18256 "configure"
+#line 18584 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -18462,11 +18790,11 @@ $as_echo "$enable_static" >&6; }
 
 
 fi
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
 CC="$lt_save_CC"
 
@@ -18600,11 +18928,11 @@ as_fn_error "C++ preprocessor \"$CXXCPP\" fails sanity check
 See \`config.log' for more details." "$LINENO" 5; }
 fi
 
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
 else
   _lt_caught_CXX_error=yes
@@ -20605,7 +20933,7 @@ $as_echo_n "checking whether the $compiler linker ($LD) supports shared librarie
     if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
       export_symbols_cmds_CXX='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
     else
-      export_symbols_cmds_CXX='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
+      export_symbols_cmds_CXX='$NM -BCpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "L")) && (substr(\$ 3,1,1) != ".")) { print \$ 3 } }'\'' | sort -u > $export_symbols'
     fi
     ;;
   pw32*)
@@ -21480,11 +21808,11 @@ fi
   lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld
 fi # test "$_lt_caught_CXX_error" != yes
 
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
 
 
@@ -21524,7 +21852,7 @@ else
 
 if test -x "$DEFAULT_ASSEMBLER"; then
 	gcc_cv_as="$DEFAULT_ASSEMBLER"
-elif test -f $gcc_cv_as_gas_srcdir/configure.in \
+elif test -f $gcc_cv_as_gas_srcdir/configure.ac \
      && test -f ../gas/Makefile \
      && test x$build = x$host; then
 	gcc_cv_as=../gas/as-new$build_exeext
@@ -21597,7 +21925,7 @@ $as_echo "newly built gas" >&6; }
   gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd
 for f in $gcc_cv_as_bfd_srcdir/configure \
          $gcc_cv_as_gas_srcdir/configure \
-         $gcc_cv_as_gas_srcdir/configure.in \
+         $gcc_cv_as_gas_srcdir/configure.ac \
          $gcc_cv_as_gas_srcdir/Makefile.in ; do
   gcc_cv_gas_version=`sed -n -e 's/^[ 	]*VERSION=[^0-9A-Za-z_]*\([0-9]*\.[0-9]*.*\)/VERSION=\1/p' < $f`
   if test x$gcc_cv_gas_version != x; then
@@ -21687,7 +22015,7 @@ elif test $install_gold_as_default = yes \
      && test -f ../gold/Makefile \
      && test x$build = x$host; then
 	gcc_cv_ld=../gold/ld-new$build_exeext
-elif test -f $gcc_cv_ld_gld_srcdir/configure.in \
+elif test -f $gcc_cv_ld_gld_srcdir/configure.ac \
      && test -f ../ld/Makefile \
      && test x$build = x$host; then
 	gcc_cv_ld=../ld/ld-new$build_exeext
@@ -21753,7 +22081,7 @@ fi
 if test "${with_plugin_ld+set}" = set; then :
   withval=$with_plugin_ld; if test x"$withval" != x; then
    ORIGINAL_PLUGIN_LD_FOR_TARGET="$withval"
-   PLUGIN_LD_SUFFIX=`echo $withval | sed -e "s,$target_alias-,,"`
+   PLUGIN_LD_SUFFIX="$withval"
  fi
 fi
 
@@ -21777,6 +22105,45 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_is_gold" >&5
 $as_echo "$ld_is_gold" >&6; }
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking gold linker with split stack support as non default" >&5
+$as_echo_n "checking gold linker with split stack support as non default... " >&6; }
+# Check to see if default ld is not gold, but gold is
+# available and has support for split stack.  If gcc was configured
+# with gold then no checking is done.
+#
+if test x$ld_is_gold = xno && which ${gcc_cv_ld}.gold >/dev/null 2>&1; then
+
+# For platforms other than powerpc64*, enable as appropriate.
+
+  gold_non_default=no
+  ld_gold=`which ${gcc_cv_ld}.gold`
+# Make sure this gold has minimal split stack support
+  if $ld_gold --help 2>/dev/null | grep split-stack-adjust-size >/dev/null 2>&1; then
+    ld_vers=`$ld_gold --version | sed 1q`
+    gold_vers=`echo $ld_vers | sed -n \
+          -e 's,^[^)]*[  ]\([0-9][0-9]*\.[0-9][0-9]*[^)]*\)) .*$,\1,p'`
+    case $target in
+# check that the gold version contains the complete split stack support
+# on powerpc64 big and little endian
+      powerpc64*-*-*)
+        case "$gold_vers" in
+          2.25.[1-9]*|2.2[6-9][.0-9]*|2.[3-9][.0-9]*|[3-9].[.0-9]*) gold_non_default=yes
+          ;;
+          *) gold_non_default=no
+          ;;
+        esac
+        ;;
+    esac
+  fi
+  if test $gold_non_default = yes; then
+
+$as_echo "#define HAVE_GOLD_NON_DEFAULT_SPLIT_STACK 1" >>confdefs.h
+
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gold_non_default" >&5
+$as_echo "$gold_non_default" >&6; }
+
 ORIGINAL_LD_FOR_TARGET=$gcc_cv_ld
 
 case "$ORIGINAL_LD_FOR_TARGET" in
@@ -21803,7 +22170,7 @@ $as_echo "newly built ld" >&6; }
 	elif test "$ld_is_gold" = yes; then
 	  in_tree_ld_is_elf=yes
 	fi
-	for f in $gcc_cv_ld_bfd_srcdir/configure $gcc_cv_ld_gld_srcdir/configure $gcc_cv_ld_gld_srcdir/configure.in $gcc_cv_ld_gld_srcdir/Makefile.in
+	for f in $gcc_cv_ld_bfd_srcdir/configure $gcc_cv_ld_gld_srcdir/configure $gcc_cv_ld_gld_srcdir/configure.ac $gcc_cv_ld_gld_srcdir/Makefile.in
 	do
 		gcc_cv_gld_version=`sed -n -e 's/^[ 	]*VERSION=[^0-9A-Za-z_]*\([0-9]*\.[0-9]*.*\)/VERSION=\1/p' < $f`
 		if test x$gcc_cv_gld_version != x; then
@@ -21836,7 +22203,7 @@ if test "${gcc_cv_nm+set}" = set; then :
 
 else
 
-if test -f $gcc_cv_binutils_srcdir/configure.in \
+if test -f $gcc_cv_binutils_srcdir/configure.ac \
      && test -f ../binutils/Makefile \
      && test x$build = x$host; then
 	gcc_cv_nm=../binutils/nm-new$build_exeext
@@ -21915,7 +22282,7 @@ if test "${gcc_cv_objdump+set}" = set; then :
 
 else
 
-if test -f $gcc_cv_binutils_srcdir/configure.in \
+if test -f $gcc_cv_binutils_srcdir/configure.ac \
      && test -f ../binutils/Makefile \
      && test x$build = x$host; then
 	# Single tree build which includes binutils.
@@ -21987,16 +22354,18 @@ if test "${gcc_cv_readelf+set}" = set; then :
 
 else
 
-if test -f $gcc_cv_binutils_srcdir/configure.in \
+if test -f $gcc_cv_binutils_srcdir/configure.ac \
      && test -f ../binutils/Makefile \
      && test x$build = x$host; then
 	# Single tree build which includes binutils.
 	gcc_cv_readelf=../binutils/readelf$build_exeext
 elif test -x readelf$build_exeext; then
 	gcc_cv_readelf=./readelf$build_exeext
+elif ( set dummy $READELF_FOR_TARGET; test -x $2 ); then
+        gcc_cv_readelf="$READELF_FOR_TARGET"
 else
-        # Extract the first word of "readelf", so it can be a program name with args.
-set dummy readelf; ac_word=$2
+        # Extract the first word of "$READELF_FOR_TARGET", so it can be a program name with args.
+set dummy $READELF_FOR_TARGET; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
 if test "${ac_cv_path_gcc_cv_readelf+set}" = set; then :
@@ -22615,7 +22984,7 @@ int foo (void) { x = 0; }
 int (*fp) (void) __attribute__ ((section (".init_array"))) = foo;
 
 _ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
+if ac_fn_cxx_try_run "$LINENO"; then :
   gcc_cv_initfini_array=yes
 else
   gcc_cv_initfini_array=no
@@ -22634,43 +23003,96 @@ fi
 	    gcc_cv_initfini_array=yes
 	  fi
 	elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_objdump != x ; then
-	  cat > conftest.s <<\EOF
-.section .dtors,"a",%progbits
+	  case $target:$gas in
+	    *:yes)
+	      sh_flags='"a"'
+	      sh_type='%progbits'
+	      ;;
+	    i?86-*-solaris2*:no | x86_64-*-solaris2*:no)
+	      sh_flags='"a"'
+	      sh_type='@progbits'
+	      ;;
+	    sparc*-*-solaris2*:no)
+	      sh_flags='#alloc'
+	      sh_type='#progbits'
+	      sh_quote='"'
+	      ;;
+	  esac
+	  case "$target:$gnu_ld" in
+	    *:yes)
+	      cat > conftest.s <<EOF
+.section .dtors,$sh_flags,$sh_type
 .balign 4
 .byte 'A', 'A', 'A', 'A'
-.section .ctors,"a",%progbits
+.section .ctors,$sh_flags,$sh_type
 .balign 4
 .byte 'B', 'B', 'B', 'B'
-.section .fini_array.65530,"a",%progbits
+.section .fini_array.65530,$sh_flags,$sh_type
 .balign 4
 .byte 'C', 'C', 'C', 'C'
-.section .init_array.65530,"a",%progbits
+.section .init_array.65530,$sh_flags,$sh_type
 .balign 4
 .byte 'D', 'D', 'D', 'D'
-.section .dtors.64528,"a",%progbits
+.section .dtors.64528,$sh_flags,$sh_type
 .balign 4
 .byte 'E', 'E', 'E', 'E'
-.section .ctors.64528,"a",%progbits
+.section .ctors.64528,$sh_flags,$sh_type
 .balign 4
 .byte 'F', 'F', 'F', 'F'
-.section .fini_array.01005,"a",%progbits
+.section .fini_array.01005,$sh_flags,$sh_type
 .balign 4
 .byte 'G', 'G', 'G', 'G'
-.section .init_array.01005,"a",%progbits
+.section .init_array.01005,$sh_flags,$sh_type
 .balign 4
 .byte 'H', 'H', 'H', 'H'
 .text
 .globl _start
 _start:
 EOF
-	  if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
-	     && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1 \
-	     && $gcc_cv_objdump -s -j .init_array conftest \
-		| grep HHHHFFFFDDDDBBBB > /dev/null 2>&1 \
-	     && $gcc_cv_objdump -s -j .fini_array conftest \
-		| grep GGGGEEEECCCCAAAA > /dev/null 2>&1; then
-	    gcc_cv_initfini_array=yes
-	  fi
+	      if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
+	         && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1 \
+	         && $gcc_cv_objdump -s -j .init_array conftest \
+		    | grep HHHHFFFFDDDDBBBB > /dev/null 2>&1 \
+	         && $gcc_cv_objdump -s -j .fini_array conftest \
+		    | grep GGGGEEEECCCCAAAA > /dev/null 2>&1; then
+	        gcc_cv_initfini_array=yes
+	      fi
+	      ;;
+	    *-*-solaris2*:no)
+	      # When Solaris ld added constructor priority support, it was
+	      # decided to only handle .init_array.N/.fini_array.N since
+	      # there was no need for backwards compatibility with
+	      # .ctors.N/.dtors.N.  .ctors/.dtors remain as separate
+	      # sections with correct execution order resp. to
+	      # .init_array/.fini_array, while gld merges them into
+	      # .init_array/.fini_array.
+	      cat > conftest.s <<EOF
+.section $sh_quote.fini_array.65530$sh_quote,$sh_flags,$sh_type
+.align 4
+.byte 'C', 'C', 'C', 'C'
+.section $sh_quote.init_array.65530$sh_quote,$sh_flags,$sh_type
+.align 4
+.byte 'D', 'D', 'D', 'D'
+.section $sh_quote.fini_array.01005$sh_quote,$sh_flags,$sh_type
+.align 4
+.byte 'G', 'G', 'G', 'G'
+.section $sh_quote.init_array.01005$sh_quote,$sh_flags,$sh_type
+.align 4
+.byte 'H', 'H', 'H', 'H'
+.text
+.globl _start
+_start:
+EOF
+	      if $gcc_cv_as -o conftest.o conftest.s > /dev/null 2>&1 \
+	         && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1 \
+	         && $gcc_cv_objdump -s -j .init_array conftest \
+		    | grep HHHHDDDD > /dev/null 2>&1 \
+	         && $gcc_cv_objdump -s -j .fini_array conftest \
+		    | grep GGGGCCCC > /dev/null 2>&1; then
+	        gcc_cv_initfini_array=yes
+	      fi
+	      ;;
+	    esac
 	  rm -f conftest conftest.*
 	fi
 	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -22694,7 +23116,7 @@ EOF
 #endif
 
 _ACEOF
-if ac_fn_c_try_cpp "$LINENO"; then :
+if ac_fn_cxx_try_cpp "$LINENO"; then :
 
 else
   gcc_cv_initfini_array=no
@@ -22713,11 +23135,12 @@ $as_echo "$gcc_cv_initfini_array" >&6; }
 
 fi
 
-if test $enable_initfini_array = yes; then
 
-$as_echo "#define HAVE_INITFINI_ARRAY_SUPPORT 1" >>confdefs.h
+cat >>confdefs.h <<_ACEOF
+#define HAVE_INITFINI_ARRAY_SUPPORT `if test $enable_initfini_array = yes; then echo 1; else echo 0; fi`
+_ACEOF
+
 
-fi
 
 # Check if we have .[us]leb128, and support symbol arithmetic with it.
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for .sleb128 and .uleb128" >&5
@@ -22959,7 +23382,7 @@ else
   test $ac_status = 0; }; }
     then
 	case $target_os in
-  win32 | pe | cygwin* | mingw32* | uwin*)
+  win32 | pe | cygwin* | mingw32*)
     # Need to check that we generated the correct relocation for the
     # .debug_frame section.  This was fixed for binutils 2.21.
     gcc_cv_as_cfi_sections_directive=no
@@ -23165,6 +23588,37 @@ cat >>confdefs.h <<_ACEOF
 _ACEOF
 
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for stabs directive" >&5
+$as_echo_n "checking assembler for stabs directive... " >&6; }
+if test "${gcc_cv_as_stabs_directive+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  gcc_cv_as_stabs_directive=no
+  if test x$gcc_cv_as != x; then
+    $as_echo '.stabs "gcc2_compiled.",60,0,0,0' > conftest.s
+    if { ac_try='$gcc_cv_as $gcc_cv_as_flags  -o conftest.o conftest.s >&5'
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }
+    then
+	gcc_cv_as_stabs_directive=yes
+    else
+      echo "configure: failed program was" >&5
+      cat conftest.s >&5
+    fi
+    rm -f conftest.o conftest.s
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_stabs_directive" >&5
+$as_echo "$gcc_cv_as_stabs_directive" >&6; }
+if test $gcc_cv_as_stabs_directive = yes; then
+
+$as_echo "#define HAVE_AS_STABS_DIRECTIVE 1" >>confdefs.h
+
+fi
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for COMDAT group support (GNU as)" >&5
 $as_echo_n "checking assembler for COMDAT group support (GNU as)... " >&6; }
 if test "${gcc_cv_as_comdat_group+set}" = set; then :
@@ -23417,6 +23871,12 @@ foo:	.long	25
 	tls_first_minor=13
 	tls_as_opt=--fatal-warnings
 	;;
+  arc*-*-*)
+    conftest_s='
+	add_s r0,r0, @foo@tpoff'
+	tls_first_major=2
+	tls_first_minor=23
+	;;
   cris-*-*|crisv32-*-*)
     conftest_s='
 	.section ".tdata","awT",@progbits
@@ -23739,7 +24199,7 @@ foo:	.long	25
 	tls_first_minor=14
 	tls_as_opt="-m64 -Aesame --fatal-warnings"
 	;;
-  sh-*-* | sh[34]-*-*)
+  sh-*-* | sh[123456789lbe]*-*-*)
     conftest_s='
 	.section ".tdata","awT",@progbits
 foo:	.long	25
@@ -24077,6 +24537,40 @@ $as_echo "#define HAVE_AS_MABI_OPTION 1" >>confdefs.h
         done
       fi
     fi
+    # Check if we have binutils support for relocations types needed by -fpic
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for -fpic relocs" >&5
+$as_echo_n "checking assembler for -fpic relocs... " >&6; }
+if test "${gcc_cv_as_aarch64_picreloc+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  gcc_cv_as_aarch64_picreloc=no
+  if test x$gcc_cv_as != x; then
+    $as_echo '
+	.text
+	ldr     x0, [x2, #:gotpage_lo15:globalsym]
+    ' > conftest.s
+    if { ac_try='$gcc_cv_as $gcc_cv_as_flags  -o conftest.o conftest.s >&5'
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }
+    then
+	gcc_cv_as_aarch64_picreloc=yes
+    else
+      echo "configure: failed program was" >&5
+      cat conftest.s >&5
+    fi
+    rm -f conftest.o conftest.s
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_aarch64_picreloc" >&5
+$as_echo "$gcc_cv_as_aarch64_picreloc" >&6; }
+if test $gcc_cv_as_aarch64_picreloc = yes; then
+
+$as_echo "#define HAVE_AS_SMALL_PIC_RELOCS 1" >>confdefs.h
+
+fi
     # Enable default workaround for AArch64 Cortex-A53 erratum 835769.
     # Check whether --enable-fix-cortex-a53-835769 was given.
 if test "${enable_fix_cortex_a53_835769+set}" = set; then :
@@ -24096,6 +24590,25 @@ if test "${enable_fix_cortex_a53_835769+set}" = set; then :
 
 fi
 
+    # Enable default workaround for AArch64 Cortex-A53 erratum 843419.
+    # Check whether --enable-fix-cortex-a53-843419 was given.
+if test "${enable_fix_cortex_a53_843419+set}" = set; then :
+  enableval=$enable_fix_cortex_a53_843419;
+        case $enableval in
+          yes)
+            tm_defines="${tm_defines} TARGET_FIX_ERR_A53_843419_DEFAULT=1"
+            ;;
+          no)
+            ;;
+          *)
+            as_fn_error "'$enableval' is an invalid value for --enable-fix-cortex-a53-843419.\
+  Valid choices are 'yes' and 'no'." "$LINENO" 5
+            ;;
+
+        esac
+
+fi
+
     ;;
 
   # All TARGET_ABI_OSF targets.
@@ -24318,39 +24831,6 @@ $as_echo "#define HAVE_AS_REGISTER_PSEUDO_OP 1" >>confdefs.h
 
 fi
 
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for #nobits" >&5
-$as_echo_n "checking assembler for #nobits... " >&6; }
-if test "${gcc_cv_as_sparc_nobits+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  gcc_cv_as_sparc_nobits=no
-  if test x$gcc_cv_as != x; then
-    $as_echo '.section "nobits",#alloc,#write,#nobits
-       .section "progbits",#alloc,#write,#progbits' > conftest.s
-    if { ac_try='$gcc_cv_as $gcc_cv_as_flags  -o conftest.o conftest.s >&5'
-  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; }
-    then
-	gcc_cv_as_sparc_nobits=yes
-    else
-      echo "configure: failed program was" >&5
-      cat conftest.s >&5
-    fi
-    rm -f conftest.o conftest.s
-  fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_sparc_nobits" >&5
-$as_echo "$gcc_cv_as_sparc_nobits" >&6; }
-
-
-cat >>confdefs.h <<_ACEOF
-#define HAVE_AS_SPARC_NOBITS `if test $gcc_cv_as_sparc_nobits = yes; then echo 1; else echo 0; fi`
-_ACEOF
-
-
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for -relax option" >&5
 $as_echo_n "checking assembler for -relax option... " >&6; }
 if test "${gcc_cv_as_sparc_relax+set}" = set; then :
@@ -24640,6 +25120,42 @@ $as_echo "#define HAVE_AS_SPARC4 1" >>confdefs.h
 
 fi
 
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for SPARC5 and VIS 4.0 instructions" >&5
+$as_echo_n "checking assembler for SPARC5 and VIS 4.0 instructions... " >&6; }
+if test "${gcc_cv_as_sparc_sparc5+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  gcc_cv_as_sparc_sparc5=no
+  if test x$gcc_cv_as != x; then
+    $as_echo '.text
+       .register %g2, #scratch
+       .register %g3, #scratch
+       .align 4
+       subxc %g1, %g2, %g3
+       fpadd8 %f0, %f2, %f4' > conftest.s
+    if { ac_try='$gcc_cv_as $gcc_cv_as_flags -xarch=sparc5 -o conftest.o conftest.s >&5'
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }
+    then
+	gcc_cv_as_sparc_sparc5=yes
+    else
+      echo "configure: failed program was" >&5
+      cat conftest.s >&5
+    fi
+    rm -f conftest.o conftest.s
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_sparc_sparc5" >&5
+$as_echo "$gcc_cv_as_sparc_sparc5" >&6; }
+if test $gcc_cv_as_sparc_sparc5 = yes; then
+
+$as_echo "#define HAVE_AS_SPARC5_VIS4 1" >>confdefs.h
+
+fi
+
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for LEON instructions" >&5
 $as_echo_n "checking assembler for LEON instructions... " >&6; }
 if test "${gcc_cv_as_sparc_leon+set}" = set; then :
@@ -24687,7 +25203,7 @@ fi
 	# etc., as per n2800 #17.6.4.6 [replacement.functions].  Check if we
 	# are configuring for a version of Cygwin that exports the wrappers.
 	if test x$host = x$target && test x$host_cpu = xi686; then
-	  ac_fn_c_check_func "$LINENO" "__wrap__Znaj" "ac_cv_func___wrap__Znaj"
+	  ac_fn_cxx_check_func "$LINENO" "__wrap__Znaj" "ac_cv_func___wrap__Znaj"
 if test "x$ac_cv_func___wrap__Znaj" = x""yes; then :
   gcc_ac_cygwin_dll_wrappers=yes
 else
@@ -24706,7 +25222,7 @@ _ACEOF
 
     esac
     case $target_os in
-      cygwin* | pe | mingw32* | interix*)
+      cygwin* | pe | mingw32*)
 	# Recent binutils allows the three-operand form of ".comm" on PE.  This
 	# definition is used unconditionally to initialise the default state of
 	# the target option variable that governs usage of the feature.
@@ -24878,7 +25394,7 @@ if test "${gcc_cv_as_ix86_filds+set}" = set; then :
 else
   gcc_cv_as_ix86_filds=no
   if test x$gcc_cv_as != x; then
-    $as_echo 'filds mem; fists mem' > conftest.s
+    $as_echo 'filds (%ebp); fists (%ebp)' > conftest.s
     if { ac_try='$gcc_cv_as $gcc_cv_as_flags  -o conftest.o conftest.s >&5'
   { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
   (eval $ac_try) 2>&5
@@ -24909,7 +25425,7 @@ if test "${gcc_cv_as_ix86_fildq+set}" = set; then :
 else
   gcc_cv_as_ix86_fildq=no
   if test x$gcc_cv_as != x; then
-    $as_echo 'fildq mem; fistpq mem' > conftest.s
+    $as_echo 'fildq (%ebp); fistpq (%ebp)' > conftest.s
     if { ac_try='$gcc_cv_as $gcc_cv_as_flags  -o conftest.o conftest.s >&5'
   { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
   (eval $ac_try) 2>&5
@@ -25191,52 +25707,6 @@ $as_echo "#define HAVE_AS_IX86_DIFF_SECT_DELTA 1" >>confdefs.h
 
 fi
 
-    # These two are used unconditionally by i386.[ch]; it is to be defined
-    # to 1 if the feature is present, 0 otherwise.
-    as_ix86_gotoff_in_data_opt=
-    if test x$gas = xyes; then
-      as_ix86_gotoff_in_data_opt="--32"
-    fi
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for GOTOFF in data" >&5
-$as_echo_n "checking assembler for GOTOFF in data... " >&6; }
-if test "${gcc_cv_as_ix86_gotoff_in_data+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  gcc_cv_as_ix86_gotoff_in_data=no
-    if test $in_tree_gas = yes; then
-    if test $gcc_cv_gas_vers -ge `expr \( \( 2 \* 1000 \) + 11 \) \* 1000 + 0`
-  then gcc_cv_as_ix86_gotoff_in_data=yes
-fi
-  elif test x$gcc_cv_as != x; then
-    $as_echo '	.text
-.L0:
-	nop
-	.data
-	.long .L0@GOTOFF' > conftest.s
-    if { ac_try='$gcc_cv_as $gcc_cv_as_flags $as_ix86_gotoff_in_data_opt -o conftest.o conftest.s >&5'
-  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; }
-    then
-	gcc_cv_as_ix86_gotoff_in_data=yes
-    else
-      echo "configure: failed program was" >&5
-      cat conftest.s >&5
-    fi
-    rm -f conftest.o conftest.s
-  fi
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_ix86_gotoff_in_data" >&5
-$as_echo "$gcc_cv_as_ix86_gotoff_in_data" >&6; }
-
-
-cat >>confdefs.h <<_ACEOF
-#define HAVE_AS_GOTOFF_IN_DATA `if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`
-_ACEOF
-
-
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for rep and lock prefix" >&5
 $as_echo_n "checking assembler for rep and lock prefix... " >&6; }
 if test "${gcc_cv_as_ix86_rep_lock_prefix+set}" = set; then :
@@ -25305,6 +25775,18 @@ $as_echo "#define HAVE_AS_IX86_UD2 1" >>confdefs.h
 
 fi
 
+    # Enforce 32-bit output with gas and gld.
+    if test x$gas = xyes; then
+      as_ix86_gas_32_opt="--32"
+    fi
+    if echo "$ld_ver" | grep GNU > /dev/null; then
+      if $gcc_cv_ld -V 2>/dev/null | grep elf_i386_sol2 > /dev/null; then
+        ld_ix86_gld_32_opt="-melf_i386_sol2"
+      else
+        ld_ix86_gld_32_opt="-melf_i386"
+      fi
+    fi
+
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for R_386_TLS_GD_PLT reloc" >&5
 $as_echo_n "checking assembler for R_386_TLS_GD_PLT reloc... " >&6; }
 if test "${gcc_cv_as_ix86_tlsgdplt+set}" = set; then :
@@ -25313,7 +25795,7 @@ else
   gcc_cv_as_ix86_tlsgdplt=no
   if test x$gcc_cv_as != x; then
     $as_echo 'call    tls_gd@tlsgdplt' > conftest.s
-    if { ac_try='$gcc_cv_as $gcc_cv_as_flags  -o conftest.o conftest.s >&5'
+    if { ac_try='$gcc_cv_as $gcc_cv_as_flags $as_ix86_gas_32_opt -o conftest.o conftest.s >&5'
   { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -25321,7 +25803,7 @@ else
   test $ac_status = 0; }; }
     then
 	if test x$gcc_cv_ld != x \
-	 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
+	 && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o -G > /dev/null 2>&1; then
 	   gcc_cv_as_ix86_tlsgdplt=yes
 	 fi
 	 rm -f conftest
@@ -25345,6 +25827,7 @@ fi
 tls_ld:
 	.section .text,"ax",@progbits
 	 call    tls_ld@tlsldmplt'
+
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for R_386_TLS_LDM_PLT reloc" >&5
 $as_echo_n "checking assembler for R_386_TLS_LDM_PLT reloc... " >&6; }
 if test "${gcc_cv_as_ix86_tlsldmplt+set}" = set; then :
@@ -25353,7 +25836,7 @@ else
   gcc_cv_as_ix86_tlsldmplt=no
   if test x$gcc_cv_as != x; then
     $as_echo "$conftest_s" > conftest.s
-    if { ac_try='$gcc_cv_as $gcc_cv_as_flags  -o conftest.o conftest.s >&5'
+    if { ac_try='$gcc_cv_as $gcc_cv_as_flags $as_ix86_gas_32_opt -o conftest.o conftest.s >&5'
   { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -25361,7 +25844,7 @@ else
   test $ac_status = 0; }; }
     then
 	if test x$gcc_cv_ld != x \
-	 && $gcc_cv_ld -o conftest conftest.o -G > /dev/null 2>&1; then
+	 && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o -G > /dev/null 2>&1; then
 	   gcc_cv_as_ix86_tlsldmplt=yes
 	 fi
 	 rm -f conftest
@@ -25381,17 +25864,6 @@ cat >>confdefs.h <<_ACEOF
 _ACEOF
 
 
-    # Enforce 32-bit output with gas and gld.
-    if test x$gas = xyes; then
-      as_ix86_tls_ldm_opt="--32"
-    fi
-    if echo "$ld_ver" | grep GNU > /dev/null; then
-      if $gcc_cv_ld -V 2>/dev/null | grep elf_i386_sol2 > /dev/null; then
-        ld_ix86_tls_ldm_opt="-melf_i386_sol2"
-      else
-        ld_ix86_tls_ldm_opt="-melf_i386"
-      fi
-    fi
     conftest_s='
 	.section .text,"ax",@progbits
         .globl  _start
@@ -25411,7 +25883,7 @@ else
   gcc_cv_as_ix86_tlsldm=no
   if test x$gcc_cv_as != x; then
     $as_echo "$conftest_s" > conftest.s
-    if { ac_try='$gcc_cv_as $gcc_cv_as_flags $as_ix86_tls_ldm_opt -o conftest.o conftest.s >&5'
+    if { ac_try='$gcc_cv_as $gcc_cv_as_flags $as_ix86_gas_32_opt -o conftest.o conftest.s >&5'
   { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -25419,7 +25891,7 @@ else
   test $ac_status = 0; }; }
     then
 	if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
-	    && $gcc_cv_ld $ld_ix86_tls_ldm_opt -o conftest conftest.o $ld_tls_libs -lc > /dev/null 2>&1; then
+	    && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o $ld_tls_libs -lc > /dev/null 2>&1; then
 	   if $gcc_cv_objdump -d conftest 2>/dev/null | grep nop > /dev/null \
 	      || dis conftest 2>/dev/null | grep nop > /dev/null; then
 	     gcc_cv_as_ix86_tlsldm=yes
@@ -25442,6 +25914,99 @@ cat >>confdefs.h <<_ACEOF
 _ACEOF
 
 
+    conftest_s='
+	.data
+bar:
+	.byte 1
+	.text
+	.global _start
+_start:
+	 cmpl $0, bar@GOT
+	 jmp *_start@GOT'
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for R_386_GOT32X reloc" >&5
+$as_echo_n "checking assembler for R_386_GOT32X reloc... " >&6; }
+if test "${gcc_cv_as_ix86_got32x+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  gcc_cv_as_ix86_got32x=no
+  if test x$gcc_cv_as != x; then
+    $as_echo "$conftest_s" > conftest.s
+    if { ac_try='$gcc_cv_as $gcc_cv_as_flags $as_ix86_gas_32_opt -o conftest.o conftest.s >&5'
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }
+    then
+	if test x$gcc_cv_ld != x && test x$gcc_cv_objdump != x \
+	    && test x$gcc_cv_readelf != x \
+	    && $gcc_cv_readelf --relocs --wide conftest.o 2>&1 \
+	       | grep R_386_GOT32X > /dev/null 2>&1 \
+	    && $gcc_cv_ld $ld_ix86_gld_32_opt -o conftest conftest.o > /dev/null 2>&1; then
+	   if $gcc_cv_objdump -dw conftest 2>&1 \
+	      | grep 0xffffff > /dev/null 2>&1; then
+	     gcc_cv_as_ix86_got32x=no
+	   else
+	     gcc_cv_as_ix86_got32x=yes
+	   fi
+	 fi
+	 rm -f conftest
+    else
+      echo "configure: failed program was" >&5
+      cat conftest.s >&5
+    fi
+    rm -f conftest.o conftest.s
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_ix86_got32x" >&5
+$as_echo "$gcc_cv_as_ix86_got32x" >&6; }
+
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_AS_IX86_GOT32X `if test x"$gcc_cv_as_ix86_got32x" = xyes; then echo 1; else echo 0; fi`
+_ACEOF
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for GOTOFF in data" >&5
+$as_echo_n "checking assembler for GOTOFF in data... " >&6; }
+if test "${gcc_cv_as_ix86_gotoff_in_data+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  gcc_cv_as_ix86_gotoff_in_data=no
+    if test $in_tree_gas = yes; then
+    if test $gcc_cv_gas_vers -ge `expr \( \( 2 \* 1000 \) + 11 \) \* 1000 + 0`
+  then gcc_cv_as_ix86_gotoff_in_data=yes
+fi
+  elif test x$gcc_cv_as != x; then
+    $as_echo '	.text
+.L0:
+	nop
+	.data
+	.long .L0@GOTOFF' > conftest.s
+    if { ac_try='$gcc_cv_as $gcc_cv_as_flags $as_ix86_gas_32_opt -o conftest.o conftest.s >&5'
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }
+    then
+	gcc_cv_as_ix86_gotoff_in_data=yes
+    else
+      echo "configure: failed program was" >&5
+      cat conftest.s >&5
+    fi
+    rm -f conftest.o conftest.s
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_ix86_gotoff_in_data" >&5
+$as_echo "$gcc_cv_as_ix86_gotoff_in_data" >&6; }
+
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_AS_GOTOFF_IN_DATA `if test $gcc_cv_as_ix86_gotoff_in_data = yes; then echo 1; else echo 0; fi`
+_ACEOF
+
+
     ;;
 
   ia64*-*-*)
@@ -25486,10 +26051,8 @@ fi
     ;;
 
   powerpc*-*-*)
+
     case $target in
-      *-*-aix*) conftest_s='	.machine "pwr5"
-	.csect .text[PR]
-	mfcr 3,128';;
       *-*-darwin*)
 	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for .machine directive support" >&5
 $as_echo_n "checking assembler for .machine directive support... " >&6; }
@@ -25522,7 +26085,14 @@ $as_echo "$gcc_cv_as_machine_directive" >&6; }
 	  echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2
 	  test x$build = x$target && exit 1
 	fi
-	conftest_s='	.text
+        ;;
+    esac
+
+    case $target in
+      *-*-aix*) conftest_s='	.machine "pwr5"
+	.csect .text[PR]
+	mfcr 3,128';;
+      *-*-darwin*) conftest_s='	.text
 	mfcr r3,128';;
       *) conftest_s='	.machine power4
 	.text
@@ -25963,6 +26533,48 @@ $as_echo "#define HAVE_AS_POWER8 1" >>confdefs.h
 fi
 
     case $target in
+      *-*-aix*) conftest_s='	.machine "pwr9"
+	.csect .text[PR]';;
+      *) conftest_s='	.machine power9
+	.text';;
+    esac
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for power9 support" >&5
+$as_echo_n "checking assembler for power9 support... " >&6; }
+if test "${gcc_cv_as_powerpc_power9+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  gcc_cv_as_powerpc_power9=no
+    if test $in_tree_gas = yes; then
+    if test $gcc_cv_gas_vers -ge `expr \( \( 2 \* 1000 \) + 19 \) \* 1000 + 2`
+  then gcc_cv_as_powerpc_power9=yes
+fi
+  elif test x$gcc_cv_as != x; then
+    $as_echo "$conftest_s" > conftest.s
+    if { ac_try='$gcc_cv_as $gcc_cv_as_flags -a32 -o conftest.o conftest.s >&5'
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }
+    then
+	gcc_cv_as_powerpc_power9=yes
+    else
+      echo "configure: failed program was" >&5
+      cat conftest.s >&5
+    fi
+    rm -f conftest.o conftest.s
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_powerpc_power9" >&5
+$as_echo "$gcc_cv_as_powerpc_power9" >&6; }
+if test $gcc_cv_as_powerpc_power9 = yes; then
+
+$as_echo "#define HAVE_AS_POWER9 1" >>confdefs.h
+
+fi
+
+    case $target in
       *-*-aix*) conftest_s='	.csect .text[PR]
 	lwsync';;
       *) conftest_s='	.text
@@ -26079,30 +26691,65 @@ fi
 $as_echo "$gcc_cv_as_powerpc_gnu_attribute" >&6; }
 if test $gcc_cv_as_powerpc_gnu_attribute = yes; then
 
-$as_echo "#define HAVE_AS_GNU_ATTRIBUTE 1" >>confdefs.h
+$as_echo "#define HAVE_AS_GNU_ATTRIBUTE 1" >>confdefs.h
+
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for tls marker support" >&5
+$as_echo_n "checking assembler for tls marker support... " >&6; }
+if test "${gcc_cv_as_powerpc_tls_markers+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  gcc_cv_as_powerpc_tls_markers=no
+    if test $in_tree_gas = yes; then
+    if test $gcc_cv_gas_vers -ge `expr \( \( 2 \* 1000 \) + 20 \) \* 1000 + 0`
+  then gcc_cv_as_powerpc_tls_markers=yes
+fi
+  elif test x$gcc_cv_as != x; then
+    $as_echo ' bl __tls_get_addr(x@tlsgd)' > conftest.s
+    if { ac_try='$gcc_cv_as $gcc_cv_as_flags  -o conftest.o conftest.s >&5'
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }
+    then
+	gcc_cv_as_powerpc_tls_markers=yes
+    else
+      echo "configure: failed program was" >&5
+      cat conftest.s >&5
+    fi
+    rm -f conftest.o conftest.s
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_powerpc_tls_markers" >&5
+$as_echo "$gcc_cv_as_powerpc_tls_markers" >&6; }
+if test $gcc_cv_as_powerpc_tls_markers = yes; then
+
+$as_echo "#define HAVE_AS_TLS_MARKERS 1" >>confdefs.h
 
 fi
 
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for tls marker support" >&5
-$as_echo_n "checking assembler for tls marker support... " >&6; }
-if test "${gcc_cv_as_powerpc_tls_markers+set}" = set; then :
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for prologue entry point marker support" >&5
+$as_echo_n "checking assembler for prologue entry point marker support... " >&6; }
+if test "${gcc_cv_as_powerpc_entry_markers+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
-  gcc_cv_as_powerpc_tls_markers=no
+  gcc_cv_as_powerpc_entry_markers=no
     if test $in_tree_gas = yes; then
-    if test $gcc_cv_gas_vers -ge `expr \( \( 2 \* 1000 \) + 20 \) \* 1000 + 0`
-  then gcc_cv_as_powerpc_tls_markers=yes
+    if test $gcc_cv_gas_vers -ge `expr \( \( 2 \* 1000 \) + 26 \) \* 1000 + 0`
+  then gcc_cv_as_powerpc_entry_markers=yes
 fi
   elif test x$gcc_cv_as != x; then
-    $as_echo ' bl __tls_get_addr(x@tlsgd)' > conftest.s
-    if { ac_try='$gcc_cv_as $gcc_cv_as_flags  -o conftest.o conftest.s >&5'
+    $as_echo ' .reloc .,R_PPC64_ENTRY; nop' > conftest.s
+    if { ac_try='$gcc_cv_as $gcc_cv_as_flags -a64 --fatal-warnings -o conftest.o conftest.s >&5'
   { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
   (eval $ac_try) 2>&5
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; }
     then
-	gcc_cv_as_powerpc_tls_markers=yes
+	gcc_cv_as_powerpc_entry_markers=yes
     else
       echo "configure: failed program was" >&5
       cat conftest.s >&5
@@ -26110,18 +26757,18 @@ fi
     rm -f conftest.o conftest.s
   fi
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_powerpc_tls_markers" >&5
-$as_echo "$gcc_cv_as_powerpc_tls_markers" >&6; }
-if test $gcc_cv_as_powerpc_tls_markers = yes; then
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_powerpc_entry_markers" >&5
+$as_echo "$gcc_cv_as_powerpc_entry_markers" >&6; }
+if test $gcc_cv_as_powerpc_entry_markers = yes; then
 
-$as_echo "#define HAVE_AS_TLS_MARKERS 1" >>confdefs.h
+$as_echo "#define HAVE_AS_ENTRY_MARKERS 1" >>confdefs.h
 
 fi
 
     case $target in
       *-*-aix*)
-	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for .ref support" >&5
-$as_echo_n "checking assembler for .ref support... " >&6; }
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for AIX .ref support" >&5
+$as_echo_n "checking assembler for AIX .ref support... " >&6; }
 if test "${gcc_cv_as_aix_ref+set}" = set; then :
   $as_echo_n "(cached) " >&6
 else
@@ -26159,6 +26806,44 @@ if test $gcc_cv_as_aix_ref = yes; then
 $as_echo "#define HAVE_AS_REF 1" >>confdefs.h
 
 fi
+
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for AIX DWARF location lists section support" >&5
+$as_echo_n "checking assembler for AIX DWARF location lists section support... " >&6; }
+if test "${gcc_cv_as_aix_dwloc+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  gcc_cv_as_aix_dwloc=no
+    if test $in_tree_gas = yes; then
+    if test $gcc_cv_gas_vers -ge `expr \( \( 2 \* 1000 \) + 21 \) \* 1000 + 0`
+  then gcc_cv_as_aix_dwloc=yes
+fi
+  elif test x$gcc_cv_as != x; then
+    $as_echo '	.dwsect 0xA0000
+	Lframe..0:
+		.vbyte 4,Lframe..0:
+	  ' > conftest.s
+    if { ac_try='$gcc_cv_as $gcc_cv_as_flags  -o conftest.o conftest.s >&5'
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }
+    then
+	gcc_cv_as_aix_dwloc=yes
+    else
+      echo "configure: failed program was" >&5
+      cat conftest.s >&5
+    fi
+    rm -f conftest.o conftest.s
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_aix_dwloc" >&5
+$as_echo "$gcc_cv_as_aix_dwloc" >&6; }
+if test $gcc_cv_as_aix_dwloc = yes; then
+
+$as_echo "#define HAVE_XCOFF_DWARF_EXTRAS 1" >>confdefs.h
+
+fi
 	;;
     esac
     ;;
@@ -26199,6 +26884,7 @@ if test $gcc_cv_as_mips_explicit_relocs = yes; then
        else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
        fi
 fi
+
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for -mno-shared support" >&5
 $as_echo_n "checking assembler for -mno-shared support... " >&6; }
 if test "${gcc_cv_as_mips_no_shared+set}" = set; then :
@@ -26538,6 +27224,113 @@ fi
       as_fn_error "Requesting --with-nan= requires assembler support for -mnan=" "$LINENO" 5
     fi
     ;;
+    s390*-*-*)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for .gnu_attribute support" >&5
+$as_echo_n "checking assembler for .gnu_attribute support... " >&6; }
+if test "${gcc_cv_as_s390_gnu_attribute+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  gcc_cv_as_s390_gnu_attribute=no
+    if test $in_tree_gas = yes; then
+    if test $gcc_cv_gas_vers -ge `expr \( \( 2 \* 1000 \) + 18 \) \* 1000 + 0`
+  then gcc_cv_as_s390_gnu_attribute=yes
+fi
+  elif test x$gcc_cv_as != x; then
+    $as_echo '.gnu_attribute 8,1' > conftest.s
+    if { ac_try='$gcc_cv_as $gcc_cv_as_flags  -o conftest.o conftest.s >&5'
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }
+    then
+	gcc_cv_as_s390_gnu_attribute=yes
+    else
+      echo "configure: failed program was" >&5
+      cat conftest.s >&5
+    fi
+    rm -f conftest.o conftest.s
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_s390_gnu_attribute" >&5
+$as_echo "$gcc_cv_as_s390_gnu_attribute" >&6; }
+if test $gcc_cv_as_s390_gnu_attribute = yes; then
+
+$as_echo "#define HAVE_AS_GNU_ATTRIBUTE 1" >>confdefs.h
+
+fi
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for .machine and .machinemode support" >&5
+$as_echo_n "checking assembler for .machine and .machinemode support... " >&6; }
+if test "${gcc_cv_as_s390_machine_machinemode+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  gcc_cv_as_s390_machine_machinemode=no
+    if test $in_tree_gas = yes; then
+    if test $gcc_cv_gas_vers -ge `expr \( \( 2 \* 1000 \) + 24 \) \* 1000 + 0`
+  then gcc_cv_as_s390_machine_machinemode=yes
+fi
+  elif test x$gcc_cv_as != x; then
+    $as_echo '	.machinemode push
+	.machinemode pop
+	.machine push
+	.machine pop' > conftest.s
+    if { ac_try='$gcc_cv_as $gcc_cv_as_flags  -o conftest.o conftest.s >&5'
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }
+    then
+	gcc_cv_as_s390_machine_machinemode=yes
+    else
+      echo "configure: failed program was" >&5
+      cat conftest.s >&5
+    fi
+    rm -f conftest.o conftest.s
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_s390_machine_machinemode" >&5
+$as_echo "$gcc_cv_as_s390_machine_machinemode" >&6; }
+if test $gcc_cv_as_s390_machine_machinemode = yes; then
+
+$as_echo "#define HAVE_AS_MACHINE_MACHINEMODE 1" >>confdefs.h
+
+fi
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking assembler for architecture modifiers support" >&5
+$as_echo_n "checking assembler for architecture modifiers support... " >&6; }
+if test "${gcc_cv_as_s390_architecture_modifiers+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  gcc_cv_as_s390_architecture_modifiers=no
+    if test $in_tree_gas = yes; then
+    if test $gcc_cv_gas_vers -ge `expr \( \( 2 \* 1000 \) + 26 \) \* 1000 + 0`
+  then gcc_cv_as_s390_architecture_modifiers=yes
+fi
+  elif test x$gcc_cv_as != x; then
+    $as_echo '	.machine z13+vx ' > conftest.s
+    if { ac_try='$gcc_cv_as $gcc_cv_as_flags  -o conftest.o conftest.s >&5'
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }
+    then
+	gcc_cv_as_s390_architecture_modifiers=yes
+    else
+      echo "configure: failed program was" >&5
+      cat conftest.s >&5
+    fi
+    rm -f conftest.o conftest.s
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_as_s390_architecture_modifiers" >&5
+$as_echo "$gcc_cv_as_s390_architecture_modifiers" >&6; }
+if test $gcc_cv_as_s390_architecture_modifiers = yes; then
+
+$as_echo "#define HAVE_AS_ARCHITECTURE_MODIFIERS 1" >>confdefs.h
+
+fi
+    ;;
 esac
 
 # Mips and HP-UX need the GNU assembler.
@@ -26772,7 +27565,7 @@ else
   gcc_cv_as_compress_debug=no
   if test x$gcc_cv_as != x; then
     $as_echo '' > conftest.s
-    if { ac_try='$gcc_cv_as $gcc_cv_as_flags --compress-debug-sections -o conftest.o conftest.s >&5'
+    if { ac_try='$gcc_cv_as $gcc_cv_as_flags  -o conftest.o conftest.s >&5'
   { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -26784,6 +27577,15 @@ else
    if $gcc_cv_as --compress-debug-sections -o conftest.o conftest.s 2>&1 | grep -i warning > /dev/null
    then
      gcc_cv_as_compress_debug=0
+   # Since binutils 2.26, gas supports --compress-debug-sections=type,
+   # defaulting to the ELF gABI format.
+   elif $gcc_cv_as --compress-debug-sections=zlib-gnu -o conftest.o conftest.s > /dev/null 2>&1
+   then
+     gcc_cv_as_compress_debug=2
+     gcc_cv_as_compress_debug_option="--compress-debug-sections"
+     gcc_cv_as_no_compress_debug_option="--nocompress-debug-sections"
+   # Before binutils 2.26, gas only supported --compress-debug-options and
+   # emitted the traditional GNU format.
    elif $gcc_cv_as --compress-debug-sections -o conftest.o conftest.s > /dev/null 2>&1
    then
      gcc_cv_as_compress_debug=1
@@ -26791,8 +27593,6 @@ else
      gcc_cv_as_no_compress_debug_option="--nocompress-debug-sections"
    else
      gcc_cv_as_compress_debug=0
-   # FIXME: Future gas versions will support ELF gABI style via
-   # --compress-debug-sections[=type].
    fi
     else
       echo "configure: failed program was" >&5
@@ -27071,15 +27871,37 @@ $as_echo "$gcc_cv_ld_eh_frame_ciev3" >&6; }
 $as_echo_n "checking linker position independent executable support... " >&6; }
 gcc_cv_ld_pie=no
 if test $in_tree_ld = yes ; then
-  if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 \
+  case "$target" in
+    # Full PIE support on Solaris was only introduced in gld 2.26.
+    *-*-solaris2*)  gcc_gld_pie_min_version=26 ;;
+    *) 		    gcc_gld_pie_min_version=15 ;;
+  esac
+  if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge "$gcc_gld_pie_min_version" -o "$gcc_cv_gld_major_version" -gt 2 \
      && test $in_tree_ld_is_elf = yes; then
     gcc_cv_ld_pie=yes
   fi
 elif test x$gcc_cv_ld != x; then
-	# Check if linker supports -pie option
-	if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
-		gcc_cv_ld_pie=yes
+  # Check if linker supports -pie option
+  if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
+    gcc_cv_ld_pie=yes
+    case "$target" in
+      *-*-solaris2*)
+	if echo "$ld_ver" | grep GNU > /dev/null \
+	  && test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 26; then
+	  gcc_cv_ld_pie=no
+	fi
+	;;
+    esac
+  else
+    case "$target" in
+      *-*-solaris2.1[1-9]*)
+	# Solaris 11.x and Solaris 12 added PIE support.
+	if $gcc_cv_ld -z help 2>&1 | grep -- type.*pie > /dev/null; then
+	  gcc_cv_ld_pie=yes
 	fi
+	;;
+    esac
+  fi
 fi
 if test x"$gcc_cv_ld_pie" = xyes; then
 
@@ -27274,27 +28096,30 @@ $as_echo "$gcc_cv_ld_eh_gc_sections_bug" >&6; }
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking linker for compressed debug sections" >&5
 $as_echo_n "checking linker for compressed debug sections... " >&6; }
 # gold/gld support compressed debug sections since binutils 2.19/2.21
+# In binutils 2.26, gld gained support for the ELF gABI format.
 if test $in_tree_ld = yes ; then
   gcc_cv_ld_compress_debug=0
   if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 19 -o "$gcc_cv_gld_major_version" -gt 2 \
      && test $in_tree_ld_is_elf = yes && test $ld_is_gold = yes; then
     gcc_cv_ld_compress_debug=2
     gcc_cv_ld_compress_debug_option="--compress-debug-sections"
+  elif test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 26 -o "$gcc_cv_gld_major_version" -gt 2 \
+     && test $in_tree_ld_is_elf = yes && test $ld_is_gold = no; then
+    gcc_cv_ld_compress_debug=3
+    gcc_cv_ld_compress_debug_option="--compress-debug-sections"
   elif test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 21 -o "$gcc_cv_gld_major_version" -gt 2 \
      && test $in_tree_ld_is_elf = yes; then
     gcc_cv_ld_compress_debug=1
   fi
 elif echo "$ld_ver" | grep GNU > /dev/null; then
-  gcc_cv_ld_compress_debug=1
-  if test 0"$ld_date" -lt 20050308; then
-    if test -n "$ld_date"; then
-      # If there was date string, but was earlier than 2005-03-08, fail
-      gcc_cv_ld_compress_debug=0
-    elif test "$ld_vers_major" -lt 2; then
-      gcc_cv_ld_compress_debug=0
-    elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 21; then
-      gcc_cv_ld_compress_debug=0
-    fi
+  if test "$ld_vers_major" -lt 2 \
+     || test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 21; then
+    gcc_cv_ld_compress_debug=0
+  elif test "$ld_vers_major" -eq 2 -a "$ld_vers_minor" -lt 26; then
+    gcc_cv_ld_compress_debug=1
+  else
+    gcc_cv_ld_compress_debug=3
+    gcc_cv_ld_compress_debug_option="--compress-debug-sections"
   fi
   if test $ld_is_gold = yes; then
     gcc_cv_ld_compress_debug=2
@@ -27409,7 +28234,7 @@ for clearcap_map in sol2-clearcapv2.map sol2-clearcap.map; do
 /* end confdefs.h.  */
 int main(void) {return 0;}
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_cxx_try_link "$LINENO"; then :
   gcc_cv_ld_clearcap=yes; break
 else
   gcc_cv_ld_clearcap=no
@@ -27525,6 +28350,40 @@ $as_echo "$gcc_cv_ld_large_toc" >&6; }
 $as_echo "#define HAVE_LD_LARGE_TOC 1" >>confdefs.h
 
     fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking linker toc pointer alignment" >&5
+$as_echo_n "checking linker toc pointer alignment... " >&6; }
+if test "${gcc_cv_ld_toc_align+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test x$gcc_cv_as != x -a x$gcc_cv_ld != x -a x$gcc_cv_nm != x; then
+      cat > conftest.s <<EOF
+	.global _start
+	.text
+_start:
+	addis 9,2,x@got@ha
+	.section .data.rel.ro,"aw",@progbits
+	.p2align 16
+	.space 32768
+x:	.quad .TOC.
+EOF
+      if $gcc_cv_as -a64 -o conftest.o conftest.s > /dev/null 2>&1 \
+         && $gcc_cv_ld $emul_name -z norelro -o conftest conftest.o > /dev/null 2>&1; then
+        gcc_cv_ld_toc_align=`$gcc_cv_nm conftest | ${AWK} '/\.TOC\./ { match ($0, "0[[:xdigit:]]*", a); print strtonum ("0x" substr(a[0], length(a[0])-3)) }'`
+      fi
+      rm -f conftest conftest.o conftest.s
+    fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_ld_toc_align" >&5
+$as_echo "$gcc_cv_ld_toc_align" >&6; }
+    if test -n "$gcc_cv_ld_toc_align" && test $gcc_cv_ld_toc_align -gt 8; then
+
+cat >>confdefs.h <<_ACEOF
+#define POWERPC64_TOC_POINTER_ALIGNMENT $gcc_cv_ld_toc_align
+_ACEOF
+
+    fi
     ;;
 esac
 
@@ -27664,6 +28523,44 @@ $as_echo "#define HAVE_LD_SYSROOT 1" >>confdefs.h
 
 fi
 
+case $target in
+*-*-solaris2*)
+  # Check for system-provided CRTs on Solaris 11.x and Solaris 12.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking system-provided CRTs on Solaris" >&5
+$as_echo_n "checking system-provided CRTs on Solaris... " >&6; }
+if test "${gcc_cv_solaris_crts+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  gcc_cv_solaris_crts=no
+     if test x$host != x$target; then
+       if test "x$with_sysroot" = xyes; then
+         target_sysroot="${test_exec_prefix}/${target_noncanonical}/sys-root"
+       else
+         target_sysroot="${with_sysroot}"
+       fi
+     fi
+     target_libdir="$target_sysroot/usr/lib"
+     # At the time they were added, gcrt1.o became a symlink for backwards
+     # compatibility on x86, while crt1.o was added on sparc, so check for that.
+     case $target in
+       i?86-*-solaris2* | x86_64-*-solaris2*)
+         if test -h "$target_libdir/gcrt1.o"; then gcc_cv_solaris_crts=yes; fi
+	 ;;
+       sparc*-*-solaris2*)
+         if test -f "$target_libdir/crt1.o"; then gcc_cv_solaris_crts=yes; fi
+	 ;;
+     esac
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_solaris_crts" >&5
+$as_echo "$gcc_cv_solaris_crts" >&6; }
+  ;;
+esac
+if test x$gcc_cv_solaris_crts = xyes; then
+
+$as_echo "#define HAVE_SOLARIS_CRTS 1" >>confdefs.h
+
+fi
+
 # Test for stack protector support in target C library.
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking __stack_chk_fail in target C library" >&5
 $as_echo_n "checking __stack_chk_fail in target C library... " >&6; }
@@ -27672,7 +28569,10 @@ if test "${gcc_cv_libc_provides_ssp+set}" = set; then :
 else
   gcc_cv_libc_provides_ssp=no
     case "$target" in
-       *-*-linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu)
+       *-*-musl*)
+	 # All versions of musl provide stack protector
+	 gcc_cv_libc_provides_ssp=yes;;
+       *-*-linux* | *-*-kfreebsd*-gnu)
       # glibc 2.4 and later provides __stack_chk_fail and
       # either __stack_chk_guard, or TLS access to stack guard canary.
 
@@ -27704,9 +28604,10 @@ fi
 	 # <http://gcc.gnu.org/ml/gcc/2008-10/msg00130.html>) and for now
 	 # simply assert that glibc does provide this, which is true for all
 	 # realistically usable GNU/Hurd configurations.
+	 # All supported versions of musl provide it as well
 	 gcc_cv_libc_provides_ssp=yes;;
-       *-*-darwin* | *-*-freebsd*)
-	 ac_fn_c_check_func "$LINENO" "__stack_chk_fail" "ac_cv_func___stack_chk_fail"
+       *-*-darwin* | *-*-freebsd* | *-*-netbsd*)
+	 ac_fn_cxx_check_func "$LINENO" "__stack_chk_fail" "ac_cv_func___stack_chk_fail"
 if test "x$ac_cv_func___stack_chk_fail" = x""yes; then :
   gcc_cv_libc_provides_ssp=yes
 else
@@ -27726,6 +28627,29 @@ $as_echo "#define TARGET_LIBC_PROVIDES_SSP 1" >>confdefs.h
 
 fi
 
+# Check whether --enable-default-ssp was given.
+# Check whether --enable-default-ssp was given.
+if test "${enable_default_ssp+set}" = set; then :
+  enableval=$enable_default_ssp;
+if test x$gcc_cv_libc_provides_ssp = xyes; then
+  case "$target" in
+    ia64*-*-*) enable_default_ssp=no ;;
+    *) enable_default_ssp=$enableval ;;
+  esac
+else
+  enable_default_ssp=no
+fi
+else
+  enable_default_ssp=no
+fi
+
+if test x$enable_default_ssp = xyes ; then
+
+$as_echo "#define ENABLE_DEFAULT_SSP 1" >>confdefs.h
+
+fi
+
+
 # Test for <sys/sdt.h> on the target.
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking sys/sdt.h in the target C library" >&5
@@ -27775,6 +28699,24 @@ $as_echo "#define TARGET_DEFAULT_LONG_DOUBLE_128 1" >>confdefs.h
 
 fi
 
+# Check if the target LIBC supports exporting the AT_PLATFORM and AT_HWCAP
+# values in the TCB.  Currently, only GLIBC 2.23 and later support this.
+gcc_cv_libc_provides_hwcap_in_tcb=no
+case "$target" in
+  powerpc*-*-linux*)
+
+if test $glibc_version_major -gt 2 \
+  || ( test $glibc_version_major -eq 2 && test $glibc_version_minor -ge 23 ); then :
+  gcc_cv_libc_provides_hwcap_in_tcb=yes
+fi
+    ;;
+esac
+if test x$gcc_cv_libc_provides_hwcap_in_tcb = xyes; then
+
+$as_echo "#define TARGET_LIBC_PROVIDES_HWCAP_IN_TCB 1" >>confdefs.h
+
+fi
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking dl_iterate_phdr in target C library" >&5
 $as_echo_n "checking dl_iterate_phdr in target C library... " >&6; }
 gcc_cv_target_dl_iterate_phdr=unknown
@@ -27800,6 +28742,9 @@ case "$target" in
       gcc_cv_target_dl_iterate_phdr=no
     fi
     ;;
+  *-linux-musl*)
+    gcc_cv_target_dl_iterate_phdr=yes
+    ;;
 esac
 
 if test x$gcc_cv_target_dl_iterate_phdr = xyes; then
@@ -27827,13 +28772,17 @@ fi
 
 
 # Use the system's zlib library.
-zlibdir=-L../zlib
-zlibinc="-I\$(srcdir)/../zlib"
+
+  # Use the system's zlib library.
+  zlibdir="-L\$(top_builddir)/../zlib"
+  zlibinc="-I\$(top_srcdir)/../zlib"
 
 # Check whether --with-system-zlib was given.
 if test "${with_system_zlib+set}" = set; then :
-  withval=$with_system_zlib; zlibdir=
-zlibinc=
+  withval=$with_system_zlib; if test x$with_system_zlib = xyes ; then
+    zlibdir=
+    zlibinc=
+  fi
 
 fi
 
@@ -27841,6 +28790,7 @@ fi
 
 
 
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable maintainer-specific portions of Makefiles" >&5
 $as_echo_n "checking whether to enable maintainer-specific portions of Makefiles... " >&6; }
     # Check whether --enable-maintainer-mode was given.
@@ -28173,43 +29123,43 @@ $as_echo "#define HAVE_isl 1" >>confdefs.h
 
 fi
 
-# Check whether isl_schedule_constraints_compute_schedule is available;
-# it's new in ISL-0.13.
+# Check whether isl_options_set_schedule_serialize_sccs is available;
+# it's new in isl 0.15.
 if test "x${ISLLIBS}" != "x" ; then
-  saved_CFLAGS="$CFLAGS"
-  CFLAGS="$CFLAGS $ISLINC"
+  saved_CXXFLAGS="$CXXFLAGS"
+  CXXFLAGS="$CXXFLAGS $ISLINC $GMPINC"
   saved_LIBS="$LIBS"
   LIBS="$LIBS $ISLLIBS $GMPLIBS"
 
-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking Checking for isl_schedule_constraints_compute_schedule" >&5
-$as_echo_n "checking Checking for isl_schedule_constraints_compute_schedule... " >&6; }
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking Checking for isl_options_set_schedule_serialize_sccs" >&5
+$as_echo_n "checking Checking for isl_options_set_schedule_serialize_sccs... " >&6; }
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <isl/schedule.h>
 int
 main ()
 {
-isl_schedule_constraints_compute_schedule (NULL);
+isl_options_set_schedule_serialize_sccs (NULL, 0);
   ;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ac_has_isl_schedule_constraints_compute_schedule=yes
+if ac_fn_cxx_try_link "$LINENO"; then :
+  ac_has_isl_options_set_schedule_serialize_sccs=yes
 else
-  ac_has_isl_schedule_constraints_compute_schedule=no
+  ac_has_isl_options_set_schedule_serialize_sccs=no
 fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_has_isl_schedule_constraints_compute_schedule" >&5
-$as_echo "$ac_has_isl_schedule_constraints_compute_schedule" >&6; }
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_has_isl_options_set_schedule_serialize_sccs" >&5
+$as_echo "$ac_has_isl_options_set_schedule_serialize_sccs" >&6; }
 
   LIBS="$saved_LIBS"
-  CFLAGS="$saved_CFLAGS"
+  CXXFLAGS="$saved_CXXFLAGS"
 
-  if test x"$ac_has_isl_schedule_constraints_compute_schedule" = x"yes"; then
+  if test x"$ac_has_isl_options_set_schedule_serialize_sccs" = x"yes"; then
 
-$as_echo "#define HAVE_ISL_SCHED_CONSTRAINTS_COMPUTE_SCHEDULE 1" >>confdefs.h
+$as_echo "#define HAVE_ISL_OPTIONS_SET_SCHEDULE_SERIALIZE_SCCS 1" >>confdefs.h
 
   fi
 fi
@@ -28311,7 +29261,7 @@ for ac_lib in '' dl; do
     ac_res=-l$ac_lib
     LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
   fi
-  if ac_fn_c_try_link "$LINENO"; then :
+  if ac_fn_cxx_try_link "$LINENO"; then :
   ac_cv_search_dlopen=$ac_res
 fi
 rm -f core conftest.err conftest.$ac_objext \
@@ -28368,7 +29318,7 @@ return X == 0;
   return 0;
 }
 _ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
+if ac_fn_cxx_try_link "$LINENO"; then :
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }; have_pic_shared=yes
 else
@@ -28496,6 +29446,100 @@ cat > gcc-driver-name.h <<EOF
 #define GCC_DRIVER_NAME "${target_noncanonical}-gcc-${gcc_BASEVER}${exeext}"
 EOF
 
+# Check whether --enable-default-pie was given.
+# Check whether --enable-default-pie was given.
+if test "${enable_default_pie+set}" = set; then :
+  enableval=$enable_default_pie; enable_default_pie=$enableval
+else
+  enable_default_pie=no
+fi
+
+if test x$enable_default_pie = xyes ; then
+
+$as_echo "#define ENABLE_DEFAULT_PIE 1" >>confdefs.h
+
+fi
+
+
+# Check if -fno-PIE works.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -fno-PIE option" >&5
+$as_echo_n "checking for -fno-PIE option... " >&6; }
+if test "${gcc_cv_c_no_fpie+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  saved_CXXFLAGS="$CXXFLAGS"
+   CXXFLAGS="$CXXFLAGS -fno-PIE"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int main(void) {return 0;}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  gcc_cv_c_no_fpie=yes
+else
+  gcc_cv_c_no_fpie=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+   CXXFLAGS="$saved_CXXFLAGS"
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_c_no_fpie" >&5
+$as_echo "$gcc_cv_c_no_fpie" >&6; }
+if test "$gcc_cv_c_no_fpie" = "yes"; then
+  NO_PIE_CFLAGS="-fno-PIE"
+fi
+
+
+# Check if -no-pie works.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -no-pie option" >&5
+$as_echo_n "checking for -no-pie option... " >&6; }
+if test "${gcc_cv_no_pie+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  saved_LDFLAGS="$LDFLAGS"
+   LDFLAGS="$LDFLAGS -no-pie"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int main(void) {return 0;}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  gcc_cv_no_pie=yes
+else
+  gcc_cv_no_pie=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+   LDFLAGS="$saved_LDFLAGS"
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_no_pie" >&5
+$as_echo "$gcc_cv_no_pie" >&6; }
+if test "$gcc_cv_no_pie" = "yes"; then
+  NO_PIE_FLAG="-no-pie"
+fi
+
+
+# Check linker supports '-z bndplt'
+ld_bndplt_support=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking linker -z bndplt option" >&5
+$as_echo_n "checking linker -z bndplt option... " >&6; }
+if test x"$ld_is_gold" = xno; then
+  if test $in_tree_ld = yes ; then
+    if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 25 -o "$gcc_cv_gld_major_version" -gt 2; then
+      ld_bndplt_support=yes
+    fi
+  elif test x$gcc_cv_ld != x; then
+    # Check if linker supports -a bndplt option
+    if $gcc_cv_ld --help 2>/dev/null | grep -- '-z bndplt' > /dev/null; then
+      ld_bndplt_support=yes
+    fi
+  fi
+fi
+if test x"$ld_bndplt_support" = xyes; then
+
+$as_echo "#define HAVE_LD_BNDPLT_SUPPORT 1" >>confdefs.h
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_bndplt_support" >&5
+$as_echo "$ld_bndplt_support" >&6; }
+
 # Configure the subdirectories
 # AC_CONFIG_SUBDIRS($subdirs)