X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=configure;h=87677bc2169f9dda29db68a358857fd802771066;hb=cfd4e875aeacf565f945c2818dbfff47807b6199;hp=77397f386f305fbcf04e22877b1373ed969fc1a0;hpb=d09bbf000469737045fd17ef5b12fdd25db0b989;p=platform%2Fupstream%2Fbinutils.git

diff --git a/configure b/configure
index 77397f3..87677bc 100755
--- a/configure
+++ b/configure
@@ -556,6 +556,7 @@ enable_option_checking=no
 ac_subst_vars='LTLIBOBJS
 LIBOBJS
 compare_exclusions
+host_shared
 stage2_werror_flag
 stage1_checking
 stage1_cflags
@@ -646,11 +647,10 @@ extra_host_libiberty_configure_flags
 clooginc
 clooglibs
 islinc
-isllibs
 poststage1_ldflags
 poststage1_libs
-stage1_libs
 stage1_ldflags
+stage1_libs
 extra_isl_gmp_configure_flags
 extra_mpc_mpfr_configure_flags
 extra_mpc_gmp_configure_flags
@@ -750,6 +750,7 @@ enable_libquadmath
 enable_libquadmath_support
 enable_libada
 enable_libssp
+enable_libstdcxx
 enable_static_libjava
 enable_bootstrap
 with_mpc
@@ -764,15 +765,15 @@ with_gmp
 with_gmp_include
 with_gmp_lib
 with_host_libstdcxx
-with_stage1_ldflags
 with_stage1_libs
+with_stage1_ldflags
 with_boot_libs
 with_boot_ldflags
+with_cloog
 with_isl
 with_isl_include
 with_isl_lib
 enable_isl_version_check
-with_cloog
 with_cloog_include
 with_cloog_lib
 enable_cloog_version_check
@@ -782,11 +783,13 @@ enable_objc_gc
 with_build_sysroot
 with_debug_prefix_map
 with_build_config
+enable_vtable_verify
 enable_serial_configure
 with_build_time_tools
 enable_maintainer_mode
 enable_stage1_checking
 enable_werror
+enable_host_shared
 '
       ac_precious_vars='build_alias
 host_alias
@@ -1465,6 +1468,7 @@ Optional Features:
                           disable libquadmath support for Fortran
   --enable-libada         build libada directory
   --enable-libssp         build libssp directory
+  --disable-libstdcxx     do not build libstdc++-v3 directory
   --enable-static-libjava[=ARG]
                           build static libjava [default=no]
   --enable-bootstrap      enable bootstrapping [yes if native build]
@@ -1478,6 +1482,7 @@ Optional Features:
                           Mostly useful for compiler development
   --enable-objc-gc        enable use of Boehm's garbage collector with the GNU
                           Objective-C runtime
+  --enable-vtable-verify    Enable vtable verification feature
   --enable-serial-[{host,target,build}-]configure
                           force sequential configuration of sub-packages for
                           the host, target or build machine, or all
@@ -1489,6 +1494,7 @@ Optional Features:
                           choose additional checking for stage1 of the
                           compiler
   --enable-werror         enable -Werror in bootstrap stage2 and later
+  --enable-host-shared    build host code as shared libraries
 
 Optional Packages:
   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
@@ -1515,22 +1521,22 @@ Optional Packages:
   --with-gmp-lib=PATH     specify directory for the installed GMP library
   --with-host-libstdcxx=L use linker arguments L to link with libstdc++ when
                           linking with PPL
+  --with-stage1-libs=LIBS libraries for stage1
   --with-stage1-ldflags=FLAGS
                           linker flags for stage1
-  --with-stage1-libs=LIBS libraries for stage1
   --with-boot-libs=LIBS   libraries for stage2 and later
   --with-boot-ldflags=FLAGS
                           linker flags for stage2 and later
+  --with-cloog=PATH       Specify prefix directory for the installed CLooG-ISL
+                          package. Equivalent to
+                          --with-cloog-include=PATH/include plus
+                          --with-cloog-lib=PATH/lib
   --with-isl=PATH         Specify prefix directory for the installed ISL
                           package. Equivalent to
                           --with-isl-include=PATH/include plus
                           --with-isl-lib=PATH/lib
   --with-isl-include=PATH Specify directory for installed ISL include files
   --with-isl-lib=PATH     Specify the directory for the installed ISL library
-  --with-cloog=PATH       Specify prefix directory for the installed CLooG-PPL
-                          package. Equivalent to
-                          --with-cloog-include=PATH/include plus
-                          --with-cloog-lib=PATH/lib
   --with-cloog-include=PATH
                           Specify directory for installed CLooG include files
   --with-cloog-lib=PATH   Specify the directory for the installed CLooG
@@ -1766,6 +1772,52 @@ fi
 
 } # ac_fn_cxx_try_compile
 
+# ac_fn_cxx_try_link LINENO
+# -------------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded.
+ac_fn_cxx_try_link ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext conftest$ac_exeext
+  if { { ac_try="$ac_link"
+case "(($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_link") 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 $ac_status = 0; } && {
+	 test -z "$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 $as_test_x conftest$ac_exeext
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
+  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
+  # interfere with the next link command; also delete a directory that is
+  # left behind by Apple's compiler.  We do this before executing the actions.
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
+  return $ac_retval
+
+} # ac_fn_cxx_try_link
+
 # ac_fn_c_try_link LINENO
 # -----------------------
 # Try to link conftest.$ac_ext, and return whether this succeeded.
@@ -2722,10 +2774,12 @@ target_libraries="target-libgcc \
 		target-libgloss \
 		target-newlib \
 		target-libgomp \
+		target-libcilkrts \
 		target-libatomic \
 		target-libitm \
 		target-libstdc++-v3 \
-		target-libmudflap \
+		target-libsanitizer \
+		target-libvtv \
 		target-libssp \
 		target-libquadmath \
 		target-libgfortran \
@@ -2902,9 +2956,9 @@ case "${ENABLE_GOLD}" in
     is_elf=no
     case "${target}" in
       *-*-elf* | *-*-sysv4* | *-*-unixware* | *-*-eabi* | hppa*64*-*-hpux* \
-      | *-*-linux* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
+      | *-*-linux* | *-*-gnu* | frv-*-uclinux* | *-*-irix5* | *-*-irix6* \
       | *-*-netbsd* | *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* \
-      | *-*-solaris2* | *-*-nto*)
+      | *-*-solaris2* | *-*-nto* | *-*-nacl*)
         case "${target}" in
           *-*-linux*aout* | *-*-linux*oldld*)
             ;;
@@ -2917,7 +2971,8 @@ case "${ENABLE_GOLD}" in
     if test "$is_elf" = "yes"; then
       # Check for target supported by gold.
       case "${target}" in
-        i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* | tilegx*-*-*)
+        i?86-*-* | x86_64-*-* | sparc*-*-* | powerpc*-*-* | arm*-*-* \
+        | aarch64*-*-* | tilegx*-*-*)
 	  configdirs="$configdirs gold"
 	  if test x${ENABLE_GOLD} = xdefault; then
 	    default_ld=gold
@@ -3028,6 +3083,17 @@ else
 fi
 
 
+# Check whether --enable-libstdcxx was given.
+if test "${enable_libstdcxx+set}" = set; then :
+  enableval=$enable_libstdcxx; ENABLE_LIBSTDCXX=$enableval
+else
+  ENABLE_LIBSTDCXX=default
+fi
+
+if test "${ENABLE_LIBSTDCXX}" = "no" ; then
+  noconfigdirs="$noconfigdirs libstdc++-v3"
+fi
+
 # Save it here so that, even in case of --enable-libgcj, if the Java
 # front-end isn't enabled, we still get libgcj disabled.
 libgcj_saved=$libgcj
@@ -3065,22 +3131,6 @@ if test x$enable_static_libjava != xyes ; then
 fi
 
 
-# Disable libmudflap on some systems.
-if test x$enable_libmudflap = x ; then
-    case "${target}" in
-    *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | bfin*-*-uclinux* | *-*-kopensolaris*-gnu)
-        # Enable libmudflap by default in GNU and friends.
-	;;
-    *-*-freebsd*)
-        # Enable libmudflap by default in FreeBSD.
-	;;
-    *)
-        # Disable it by default everywhere else.
-	noconfigdirs="$noconfigdirs target-libmudflap"
-	;;
-    esac
-fi
-
 # Disable libgomp on non POSIX hosted systems.
 if test x$enable_libgomp = x ; then
     # Enable libgomp by default on hosted POSIX systems.
@@ -3118,6 +3168,25 @@ $as_echo "yes" >&6; }
     fi
 fi
 
+# Disable libcilkrts on unsupported systems.
+if test -d ${srcdir}/libcilkrts; then
+    if test x$enable_libcilkrts = x; then
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libcilkrts support" >&5
+$as_echo_n "checking for libcilkrts support... " >&6; }
+	if (srcdir=${srcdir}/libcilkrts; \
+		. ${srcdir}/configure.tgt; \
+		test -n "$UNSUPPORTED")
+	then
+	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	    noconfigdirs="$noconfigdirs target-libcilkrts"
+	else
+	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+	fi
+    fi
+fi
+
 # Disable libitm on unsupported systems.
 if test -d ${srcdir}/libitm; then
     if test x$enable_libitm = x; then
@@ -3137,8 +3206,49 @@ $as_echo "yes" >&6; }
     fi
 fi
 
+# Disable libsanitizer on unsupported systems.
+if test -d ${srcdir}/libsanitizer; then
+    if test x$enable_libsanitizer = x; then
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libsanitizer support" >&5
+$as_echo_n "checking for libsanitizer support... " >&6; }
+	if (srcdir=${srcdir}/libsanitizer; \
+		. ${srcdir}/configure.tgt; \
+		test -n "$UNSUPPORTED")
+	then
+	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	    noconfigdirs="$noconfigdirs target-libsanitizer"
+	else
+	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+	fi
+    fi
+fi
+
+# Disable libvtv on unsupported systems.
+if test -d ${srcdir}/libvtv; then
+    if test x$enable_libvtv = x; then
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libvtv support" >&5
+$as_echo_n "checking for libvtv support... " >&6; }
+	if (srcdir=${srcdir}/libvtv; \
+		. ${srcdir}/configure.tgt; \
+		test "$VTV_SUPPORTED" != "yes")
+	then
+	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	    noconfigdirs="$noconfigdirs target-libvtv"
+	else
+	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+	fi
+    fi
+fi
+
 # Disable libquadmath for some systems.
 case "${target}" in
+  avr-*-*)
+    noconfigdirs="$noconfigdirs target-libquadmath"
+    ;;
   # libquadmath is unused on AIX and libquadmath build process use of
   # LD_LIBRARY_PATH can break AIX bootstrap.
   powerpc-*-aix* | rs6000-*-aix*)
@@ -3164,19 +3274,22 @@ case "${target}" in
 esac
 
 # Disable libstdc++-v3 for some systems.
-case "${target}" in
-  *-*-vxworks*)
-    # VxWorks uses the Dinkumware C++ library.
-    noconfigdirs="$noconfigdirs target-libstdc++-v3"
-    ;;
-  arm*-wince-pe*)
-    # the C++ libraries don't build on top of CE's C libraries
-    noconfigdirs="$noconfigdirs target-libstdc++-v3"
-    ;;
-  avr-*-*)
-    noconfigdirs="$noconfigdirs target-libstdc++-v3"
-    ;;
-esac
+# Allow user to override this if they pass --enable-libstdc++-v3
+if test "${ENABLE_LIBSTDCXX}" = "default" ; then
+  case "${target}" in
+    *-*-vxworks*)
+      # VxWorks uses the Dinkumware C++ library.
+      noconfigdirs="$noconfigdirs target-libstdc++-v3"
+      ;;
+    arm*-wince-pe*)
+      # the C++ libraries don't build on top of CE's C libraries
+      noconfigdirs="$noconfigdirs target-libstdc++-v3"
+      ;;
+    avr-*-*)
+      noconfigdirs="$noconfigdirs target-libstdc++-v3"
+      ;;
+  esac
+fi
 
 # Disable Fortran for some systems.
 case "${target}" in
@@ -3188,6 +3301,8 @@ esac
 
 # Disable Java if libffi is not supported.
 case "${target}" in
+  aarch64-*-*)
+    ;;
   alpha*-*-*)
     ;;
   arm*-*-*)
@@ -3329,6 +3444,23 @@ case "${target}" in
     ;;
 esac
 
+# Disable libgo for some systems where it is known to not work.
+# For testing, you can easily override this with --enable-libgo.
+if test x$enable_libgo = x; then
+    case "${target}" in
+    *-*-darwin*)
+	# PR 46986
+	noconfigdirs="$noconfigdirs target-libgo"
+	;;
+    *-*-cygwin* | *-*-mingw*)
+	noconfigdirs="$noconfigdirs target-libgo"
+	;;
+    *-*-aix*)
+	noconfigdirs="$noconfigdirs target-libgo"
+	;;
+    esac
+fi
+
 # Default libgloss CPU subdirectory.
 libgloss_dir="$target_cpu"
 
@@ -3336,6 +3468,9 @@ case "${target}" in
   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
     libgloss_dir=wince
     ;;
+  aarch64*-*-* )
+    libgloss_dir=aarch64
+    ;;
   arm*-*-*)
     libgloss_dir=arm
     ;;
@@ -3469,6 +3604,10 @@ case "${target}" in
     ;;
   *-*-rtems*)
     noconfigdirs="$noconfigdirs target-libgloss"
+    # this is not caught below because this stanza matches earlier
+    case $target in
+      or1k*-*-*) noconfigdirs="$noconfigdirs gdb" ;;
+    esac
     ;;
     # The tpf target doesn't support gdb yet.
   *-*-tpf*)
@@ -3494,7 +3633,7 @@ case "${target}" in
   sh*-*-pe|mips*-*-pe|*arm-wince-pe)
     noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
     ;;
-  arc-*-*)
+  arc-*-*|arceb-*-*)
     noconfigdirs="$noconfigdirs target-libgloss"
     ;;
   arm-*-pe*)
@@ -3503,6 +3642,13 @@ case "${target}" in
   arm-*-riscix*)
     noconfigdirs="$noconfigdirs ld target-libgloss"
     ;;
+  avr-*-rtems*)
+    ;;
+  avr-*-*)
+    if test x${with_avrlibc} != xno; then
+      noconfigdirs="$noconfigdirs target-newlib target-libgloss"
+    fi
+    ;;
   c4x-*-* | tic4x-*-*)
     noconfigdirs="$noconfigdirs target-libgloss"
     ;;
@@ -3637,7 +3783,7 @@ case "${target}" in
   microblaze*)
     noconfigdirs="$noconfigdirs gprof"
     ;;
-  mips*-sde-elf* | mips*-mti-elf*)
+  mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
     if test x$with_newlib = xyes; then
       noconfigdirs="$noconfigdirs gprof"
     fi
@@ -3649,13 +3795,23 @@ case "${target}" in
     noconfigdirs="$noconfigdirs gprof target-libgloss"
     ;;
   mips*-*-bsd*)
-    noconfigdirs="$noconfigdirs gprof target-libgloss"
+    noconfigdirs="$noconfigdirs ld gas gprof target-libgloss"
     ;;
   mips*-*-linux*)
     ;;
+  mips*-*-ultrix* | mips*-*-osf* | mips*-*-ecoff* | mips*-*-pe* \
+  | mips*-*-irix* | mips*-*-lnews* | mips*-*-riscos*)
+    noconfigdirs="$noconfigdirs ld gas gprof"
+    ;;
   mips*-*-*)
     noconfigdirs="$noconfigdirs gprof"
     ;;
+  nds32*-*-*)
+    noconfigdirs="$noconfigdirs gdb"
+    ;;
+  or1k*-*-*)
+    noconfigdirs="$noconfigdirs gdb"
+    ;;
   sh-*-* | sh64-*-*)
     case "${target}" in
       sh*-*-elf)
@@ -3672,7 +3828,7 @@ case "${target}" in
   tic6x-*-*)
     noconfigdirs="$noconfigdirs sim"
     ;;
-  tilepro-*-* | tilegx-*-*)
+  tilepro*-*-* | tilegx*-*-*)
     noconfigdirs="$noconfigdirs sim"
     ;;
   v810-*-*)
@@ -4816,6 +4972,48 @@ if test -z "$LD"; then
   fi
 fi
 
+# Check whether -static-libstdc++ -static-libgcc is supported.
+have_static_libs=no
+if test "$GCC" = yes; then
+  saved_LDFLAGS="$LDFLAGS"
+
+  LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether g++ accepts -static-libstdc++ -static-libgcc" >&5
+$as_echo_n "checking whether g++ accepts -static-libstdc++ -static-libgcc... " >&6; }
+  ac_ext=cpp
+ac_cpp='$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
+
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#if (__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
+#error -static-libstdc++ not implemented
+#endif
+int main() {}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }; have_static_libs=yes
+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$ac_exeext conftest.$ac_ext
+  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
+
+
+  LDFLAGS="$saved_LDFLAGS"
+fi
+
 
 
 
@@ -5315,7 +5513,7 @@ main ()
 
   #define GCC_GMP_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
   #define GCC_GMP_VERSION GCC_GMP_VERSION_NUM(__GNU_MP_VERSION,__GNU_MP_VERSION_MINOR,__GNU_MP_VERSION_PATCHLEVEL)
-  #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,0)
+  #if GCC_GMP_VERSION < GCC_GMP_VERSION_NUM(4,2,3)
   choke me
   #endif
 
@@ -5545,32 +5743,38 @@ case $with_host_libstdcxx in
     ;;
 esac
 
-# Linker flags to use for stage1 or when not boostrapping.
+# Libraries to use for stage1 or when not bootstrapping.
 
-# Check whether --with-stage1-ldflags was given.
-if test "${with_stage1_ldflags+set}" = set; then :
-  withval=$with_stage1_ldflags; if test "$withval" = "no" -o "$withval" = "yes"; then
-   stage1_ldflags=
+# Check whether --with-stage1-libs was given.
+if test "${with_stage1_libs+set}" = set; then :
+  withval=$with_stage1_libs; if test "$withval" = "no" -o "$withval" = "yes"; then
+   stage1_libs=
  else
-   stage1_ldflags=$withval
+   stage1_libs=$withval
  fi
 else
-  stage1_ldflags=
+  stage1_libs=$with_host_libstdcxx
 fi
 
 
 
-# Libraries to use for stage1 or when not bootstrapping.
+# Linker flags to use for stage1 or when not bootstrapping.
 
-# Check whether --with-stage1-libs was given.
-if test "${with_stage1_libs+set}" = set; then :
-  withval=$with_stage1_libs; if test "$withval" = "no" -o "$withval" = "yes"; then
-   stage1_libs=
+# Check whether --with-stage1-ldflags was given.
+if test "${with_stage1_ldflags+set}" = set; then :
+  withval=$with_stage1_ldflags; if test "$withval" = "no" -o "$withval" = "yes"; then
+   stage1_ldflags=
  else
-   stage1_libs=$withval
+   stage1_ldflags=$withval
  fi
 else
-  stage1_libs=$with_host_libstdcxx
+  stage1_ldflags=
+ # In stage 1, default to linking libstdc++ and libgcc statically with GCC
+ # if supported.  But if the user explicitly specified the libraries to use,
+ # trust that they are doing what they want.
+ if test "$stage1_libs" = "" -a "$have_static_libs" = yes; then
+   stage1_ldflags="-static-libstdc++ -static-libgcc"
+ fi
 fi
 
 
@@ -5612,7 +5816,15 @@ fi
 
 
 
-# Check for ISL
+# GCC GRAPHITE dependences, ISL and CLOOG which in turn requires ISL.
+# Basic setup is inlined here, actual checks are in config/cloog.m4 and
+# config/isl.m4
+
+
+# Check whether --with-cloog was given.
+if test "${with_cloog+set}" = set; then :
+  withval=$with_cloog;
+fi
 
 
 # Check whether --with-isl was given.
@@ -5621,6 +5833,13 @@ if test "${with_isl+set}" = set; then :
 fi
 
 
+# Treat either --without-cloog or --without-isl as a request to disable
+# GRAPHITE support and skip all following checks.
+if test "x$with_isl" != "xno" &&
+   test "x$with_cloog" != "xno"; then
+  # Check for ISL
+
+
 # Check whether --with-isl-include was given.
 if test "${with_isl_include+set}" = set; then :
   withval=$with_isl_include;
@@ -5665,16 +5884,12 @@ fi
     isllibs='-L$$r/$(HOST_SUBDIR)/isl/'"$lt_cv_objdir"' '
     islinc='-I$$r/$(HOST_SUBDIR)/isl/include -I$$s/isl/include'
     ENABLE_ISL_CHECK=no
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using in-tree ISL, disabling version check" >&5
+$as_echo "$as_me: WARNING: using in-tree ISL, disabling version check" >&2;}
   fi
 
-  isllibs="${isllibs} -lisl"
 
 
-
-
-
-if test "x$with_isl" != "xno"; then
-
   if test "${ENABLE_ISL_CHECK}" = yes ; then
     _isl_saved_CFLAGS=$CFLAGS
     _isl_saved_LDFLAGS=$LDFLAGS
@@ -5683,14 +5898,10 @@ if test "x$with_isl" != "xno"; then
     CFLAGS="${_isl_saved_CFLAGS} ${islinc} ${gmpinc}"
     LDFLAGS="${_isl_saved_LDFLAGS} ${isllibs}"
     LIBS="${_isl_saved_LIBS} -lisl"
-    echo $CFLAGS
 
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for version 0.10 of ISL" >&5
 $as_echo_n "checking for version 0.10 of ISL... " >&6; }
-if test "${gcc_cv_isl+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test "$cross_compiling" = yes; then :
+    if test "$cross_compiling" = yes; then :
   gcc_cv_isl=yes
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -5716,8 +5927,55 @@ rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
   conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
 
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_isl" >&5
+$as_echo "$gcc_cv_isl" >&6; }
+
+    CFLAGS=$_isl_saved_CFLAGS
+    LDFLAGS=$_isl_saved_LDFLAGS
+    LIBS=$_isl_saved_LIBS
+  fi
+
+
+  if test "${gcc_cv_isl}" = no ; then
+
+  if test "${ENABLE_ISL_CHECK}" = yes ; then
+    _isl_saved_CFLAGS=$CFLAGS
+    _isl_saved_LDFLAGS=$LDFLAGS
+    _isl_saved_LIBS=$LIBS
+
+    CFLAGS="${_isl_saved_CFLAGS} ${islinc} ${gmpinc}"
+    LDFLAGS="${_isl_saved_LDFLAGS} ${isllibs}"
+    LIBS="${_isl_saved_LIBS} -lisl"
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for version 0.11 of ISL" >&5
+$as_echo_n "checking for version 0.11 of ISL... " >&6; }
+    if test "$cross_compiling" = yes; then :
+  gcc_cv_isl=yes
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <isl/version.h>
+   #include <string.h>
+int
+main ()
+{
+if (strncmp (isl_version (), "isl-0.11", strlen ("isl-0.11")) != 0)
+     return 1;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  gcc_cv_isl=yes
+else
+  gcc_cv_isl=no
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_isl" >&5
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_isl" >&5
 $as_echo "$gcc_cv_isl" >&6; }
 
     CFLAGS=$_isl_saved_CFLAGS
@@ -5726,8 +5984,57 @@ $as_echo "$gcc_cv_isl" >&6; }
   fi
 
 
+    if test "${gcc_cv_isl}" = no ; then
+
+  if test "${ENABLE_ISL_CHECK}" = yes ; then
+    _isl_saved_CFLAGS=$CFLAGS
+    _isl_saved_LDFLAGS=$LDFLAGS
+    _isl_saved_LIBS=$LIBS
+
+    CFLAGS="${_isl_saved_CFLAGS} ${islinc} ${gmpinc}"
+    LDFLAGS="${_isl_saved_LDFLAGS} ${isllibs}"
+    LIBS="${_isl_saved_LIBS} -lisl"
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for version 0.12 of ISL" >&5
+$as_echo_n "checking for version 0.12 of ISL... " >&6; }
+    if test "$cross_compiling" = yes; then :
+  gcc_cv_isl=yes
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <isl/version.h>
+   #include <string.h>
+int
+main ()
+{
+if (strncmp (isl_version (), "isl-0.12", strlen ("isl-0.12")) != 0)
+     return 1;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  gcc_cv_isl=yes
+else
+  gcc_cv_isl=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_isl" >&5
+$as_echo "$gcc_cv_isl" >&6; }
+
+    CFLAGS=$_isl_saved_CFLAGS
+    LDFLAGS=$_isl_saved_LDFLAGS
+    LIBS=$_isl_saved_LIBS
+  fi
 
 
+    fi
+  fi
+
 
 
 
@@ -5756,15 +6063,9 @@ $as_echo "$gcc_cv_isl" >&6; }
   fi
 
 
-fi
-
-# Check for CLOOG
-
 
-# Check whether --with-cloog was given.
-if test "${with_cloog+set}" = set; then :
-  withval=$with_cloog;
-fi
+  if test "x$gcc_cv_isl" != "xno"; then
+    # Check for CLOOG
 
 
 # Check whether --with-cloog-include was given.
@@ -5806,23 +6107,19 @@ fi
   if test "x${with_cloog_lib}" != x; then
     clooglibs="-L$with_cloog_lib"
   fi
-      if test "x${clooginc}" = x && test "x${clooglibs}" = x \
+        if test "x${clooginc}" = x && test "x${clooglibs}" = x \
      && test -d ${srcdir}/cloog; then
      clooglibs='-L$$r/$(HOST_SUBDIR)/cloog/'"$lt_cv_objdir"' '
      clooginc='-I$$r/$(HOST_SUBDIR)/cloog/include -I$$s/cloog/include -I'${srcdir}'/cloog/include '
+    ENABLE_CLOOG_CHECK=no
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using in-tree CLooG, disabling version check" >&5
+$as_echo "$as_me: WARNING: using in-tree CLooG, disabling version check" >&2;}
   fi
 
   clooginc="-DCLOOG_INT_GMP ${clooginc}"
-  clooglibs="${clooglibs} -lcloog-isl ${isllibs}"
-
-
-
+  clooglibs="${clooglibs} -lcloog-isl ${isllibs} -lisl"
 
 
-if test "x$isllibs" = x && test "x$islinc" = x; then
-  clooglibs=
-  clooginc=
-elif test "x$with_cloog" != "xno"; then
 
 
 
@@ -5835,10 +6132,7 @@ elif test "x$with_cloog" != "xno"; then
 
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for version 0.17.0 of CLooG" >&5
 $as_echo_n "checking for version 0.17.0 of CLooG... " >&6; }
-if test "${gcc_cv_cloog+set}" = set; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include "cloog/version.h"
 int
@@ -5859,8 +6153,49 @@ else
   gcc_cv_cloog=no
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_cloog" >&5
+$as_echo "$gcc_cv_cloog" >&6; }
+
+    CFLAGS=$_cloog_saved_CFLAGS
+    LDFLAGS=$_cloog_saved_LDFLAGS
+  fi
+
+
+    if test "${gcc_cv_cloog}" = no ; then
+
+
+
+  if test "${ENABLE_CLOOG_CHECK}" = yes ; then
+    _cloog_saved_CFLAGS=$CFLAGS
+    _cloog_saved_LDFLAGS=$LDFLAGS
+
+    CFLAGS="${_cloog_saved_CFLAGS} ${clooginc} ${islinc} ${gmpinc}"
+    LDFLAGS="${_cloog_saved_LDFLAGS} ${clooglibs} ${isllibs} ${gmplib}"
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for version 0.18.0 of CLooG" >&5
+$as_echo_n "checking for version 0.18.0 of CLooG... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include "cloog/version.h"
+int
+main ()
+{
+#if CLOOG_VERSION_MAJOR != 0 \
+    || CLOOG_VERSION_MINOR != 18 \
+    || CLOOG_VERSION_REVISION < 0
+    choke me
+   #endif
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  gcc_cv_cloog=yes
+else
+  gcc_cv_cloog=no
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_cloog" >&5
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_cloog" >&5
 $as_echo "$gcc_cv_cloog" >&6; }
 
     CFLAGS=$_cloog_saved_CFLAGS
@@ -5868,6 +6203,7 @@ $as_echo "$gcc_cv_cloog" >&6; }
   fi
 
 
+    fi
 
 
 
@@ -5894,18 +6230,30 @@ $as_echo "$gcc_cv_cloog" >&6; }
     && test "x${clooglibs}" = x \
     && test "x${clooginc}" = x ; then
 
-    as_fn_error "Unable to find a usable CLooG.  See config.log for details." "$LINENO" 5
+      as_fn_error "Unable to find a usable CLooG.  See config.log for details." "$LINENO" 5
   fi
 
 
+  fi
 fi
 
 # If either the ISL or the CLooG check failed, disable builds of in-tree
 # variants of both
-if test "x$clooglibs" = x && test "x$clooginc" = x; then
+if test "x$with_isl" = xno ||
+   test "x$with_cloog" = xno ||
+   test "x$gcc_cv_cloog" = xno ||
+   test "x$gcc_cv_isl" = xno; then
   noconfigdirs="$noconfigdirs cloog isl"
+  islinc=
+  clooginc=
+  clooglibs=
 fi
 
+
+
+
+
+
 # Check for LTO support.
 # Check whether --enable-lto was given.
 if test "${enable_lto+set}" = set; then :
@@ -6109,6 +6457,7 @@ if test -d ${srcdir}/gcc; then
 	  boot_language=yes
 	fi
 
+        add_this_lang=no
         case ,${enable_languages}, in
           *,${language},*)
             # Language was explicitly selected; include it
@@ -6119,10 +6468,9 @@ if test -d ${srcdir}/gcc; then
             ;;
           *,all,*)
             # 'all' was selected, select it if it is a default language
-            add_this_lang=${build_by_default}
-            ;;
-          *)
-            add_this_lang=no
+	    if test "$language" != "c"; then
+	      add_this_lang=${build_by_default}
+	    fi
             ;;
         esac
 
@@ -6291,11 +6639,11 @@ case ,${enable_languages},:${enable_objc_gc} in
     ;;
 esac
 
-# Disable libitm if we're not building C++
+# Disable libitm, libsanitizer, libvtv if we're not building C++
 case ,${enable_languages}, in
   *,c++,*) ;;
   *)
-    noconfigdirs="$noconfigdirs target-libitm"
+    noconfigdirs="$noconfigdirs target-libcilkrts target-libitm target-libsanitizer target-libvtv"
     ;;
 esac
 
@@ -6646,7 +6994,7 @@ case "${target}" in
   spu-*-*)
     target_makefile_frag="config/mt-spu"
     ;;
-  mips*-sde-elf* | mips*-mti-elf*)
+  mips*-sde-elf* | mips*-mti-elf* | mips*-img-elf*)
     target_makefile_frag="config/mt-sde"
     ;;
   mipsisa*-*-elfoabi*)
@@ -6655,6 +7003,9 @@ case "${target}" in
   mips*-*-*linux* | mips*-*-gnu*)
     target_makefile_frag="config/mt-mips-gnu"
     ;;
+  nios2-*-elf*)
+    target_makefile_frag="config/mt-nios2-elf"
+    ;;
   *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
     target_makefile_frag="config/mt-gnu"
     ;;
@@ -6757,16 +7108,99 @@ else
   GCC_SHLIB_SUBDIR=
 fi
 
+# Adjust the toplevel makefile according to whether bootstrap was selected.
+case $enable_bootstrap in
+  yes)
+    bootstrap_suffix=bootstrap
+    BUILD_CONFIG=bootstrap-debug
+    ;;
+  no)
+    bootstrap_suffix=no-bootstrap
+    BUILD_CONFIG=
+    ;;
+esac
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for default BUILD_CONFIG" >&5
+$as_echo_n "checking for default BUILD_CONFIG... " >&6; }
+
+
+# Check whether --with-build-config was given.
+if test "${with_build_config+set}" = set; then :
+  withval=$with_build_config; case $with_build_config in
+   yes) with_build_config= ;;
+   no) with_build_config= BUILD_CONFIG= ;;
+   esac
+fi
+
+
+if test "x${with_build_config}" != x; then
+  BUILD_CONFIG=$with_build_config
+else
+  case $BUILD_CONFIG in
+  bootstrap-debug)
+    if echo "int f (void) { return 0; }" > conftest.c &&
+       ${CC} -c conftest.c &&
+       mv conftest.o conftest.o.g0 &&
+       ${CC} -c -g conftest.c &&
+       mv conftest.o conftest.o.g &&
+       ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
+      :
+    else
+      BUILD_CONFIG=
+    fi
+    rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
+    ;;
+  esac
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $BUILD_CONFIG" >&5
+$as_echo "$BUILD_CONFIG" >&6; }
+
+
+# Use same top-level configure hooks in libgcc/libstdc++/libvtv.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for --enable-vtable-verify" >&5
+$as_echo_n "checking for --enable-vtable-verify... " >&6; }
+# Check whether --enable-vtable-verify was given.
+if test "${enable_vtable_verify+set}" = set; then :
+  enableval=$enable_vtable_verify; case "$enableval" in
+ yes) enable_vtable_verify=yes ;;
+ no)  enable_vtable_verify=no ;;
+ *)   enable_vtable_verify=no;;
+ esac
+else
+  enable_vtable_verify=no
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_vtable_verify" >&5
+$as_echo "$enable_vtable_verify" >&6; }
+
 # Record target_configdirs and the configure arguments for target and
 # build configuration in Makefile.
 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
 build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
+bootstrap_fixincludes=no
 
 # If we are building libgomp, bootstrap it.
 if echo " ${target_configdirs} " | grep " libgomp " > /dev/null 2>&1 ; then
   bootstrap_target_libs=${bootstrap_target_libs}target-libgomp,
 fi
 
+# If we are building libsanitizer and $BUILD_CONFIG contains bootstrap-asan
+# or bootstrap-ubsan, bootstrap it.
+if echo " ${target_configdirs} " | grep " libsanitizer " > /dev/null 2>&1; then
+  case "$BUILD_CONFIG" in
+    *bootstrap-asan* | *bootstrap-ubsan* )
+      bootstrap_target_libs=${bootstrap_target_libs}target-libsanitizer,
+      bootstrap_fixincludes=yes
+      ;;
+  esac
+fi
+
+# If we are building libvtv and --enable-vtable-verify, bootstrap it.
+if echo " ${target_configdirs} " | grep " libvtv " > /dev/null 2>&1 &&
+   test "$enable_vtable_verify" != no; then
+  bootstrap_target_libs=${bootstrap_target_libs}target-libvtv,
+fi
+
 # Determine whether gdb needs tk/tcl or not.
 # Use 'maybe' since enable_gdbtk might be true even if tk isn't available
 # and in that case we want gdb to be built without tk.  Ugh!
@@ -6816,54 +7250,6 @@ case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
     ;;
 esac
 
-# Adjust the toplevel makefile according to whether bootstrap was selected.
-case $enable_bootstrap in
-  yes)
-    bootstrap_suffix=bootstrap
-    BUILD_CONFIG=bootstrap-debug
-    ;;
-  no)
-    bootstrap_suffix=no-bootstrap
-    BUILD_CONFIG=
-    ;;
-esac
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for default BUILD_CONFIG" >&5
-$as_echo_n "checking for default BUILD_CONFIG... " >&6; }
-
-
-# Check whether --with-build-config was given.
-if test "${with_build_config+set}" = set; then :
-  withval=$with_build_config; case $with_build_config in
-   yes) with_build_config= ;;
-   no) with_build_config= BUILD_CONFIG= ;;
-   esac
-fi
-
-
-if test "x${with_build_config}" != x; then
-  BUILD_CONFIG=$with_build_config
-else
-  case $BUILD_CONFIG in
-  bootstrap-debug)
-    if echo "int f (void) { return 0; }" > conftest.c &&
-       ${CC} -c conftest.c &&
-       mv conftest.o conftest.o.g0 &&
-       ${CC} -c -g conftest.c &&
-       mv conftest.o conftest.o.g &&
-       ${srcdir}/contrib/compare-debug conftest.o.g0 conftest.o.g > /dev/null 2>&1; then
-      :
-    else
-      BUILD_CONFIG=
-    fi
-    rm -f conftest.c conftest.o conftest.o.g0 conftest.o.g
-    ;;
-  esac
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $BUILD_CONFIG" >&5
-$as_echo "$BUILD_CONFIG" >&6; }
-
-
 extrasub_build=
 for module in ${build_configdirs} ; do
   if test -z "${no_recursion}" \
@@ -6887,11 +7273,15 @@ for module in ${configdirs} ; do
       fi
     done
   fi
+  case ${module},${bootstrap_fixincludes} in
+    fixincludes,no) host_bootstrap_suffix=no-bootstrap ;;
+    *) host_bootstrap_suffix=$bootstrap_suffix ;;
+  esac
   extrasub_host="$extrasub_host
 /^@if $module\$/d
 /^@endif $module\$/d
-/^@if $module-$bootstrap_suffix\$/d
-/^@endif $module-$bootstrap_suffix\$/d"
+/^@if $module-$host_bootstrap_suffix\$/d
+/^@endif $module-$host_bootstrap_suffix\$/d"
 done
 extrasub_target=
 for module in ${target_configdirs} ; do
@@ -7155,6 +7545,26 @@ if test x${is_cross_compiler} = xyes ; then
   target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
 fi
 
+# Special user-friendly check for native x86_64-linux build, if
+# multilib is not explicitly enabled.
+case "$target:$have_compiler:$host:$target:$enable_multilib" in
+  x86_64-*linux*:yes:$build:$build:)
+    # Make sure we have a developement environment that handles 32-bit
+    dev64=no
+    echo "int main () { return 0; }" > conftest.c
+    ${CC} -m32 -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
+    if test $? = 0 ; then
+      if test -s conftest || test -s conftest.exe ; then
+	dev64=yes
+      fi
+    fi
+    rm -f conftest*
+    if test x${dev64} != xyes ; then
+      as_fn_error "I suspect your system does not have 32-bit developement libraries (libc and headers). If you have them, rerun configure with --enable-multilib. If you do not have them, and want to build a 64-bit-only compiler, rerun configure with --disable-multilib." "$LINENO" 5
+    fi
+    ;;
+esac
+
 # Default to --enable-multilib.
 if test x${enable_multilib} = x ; then
   target_configargs="--enable-multilib ${target_configargs}"
@@ -7187,7 +7597,7 @@ case " $target_configdirs " in
   *" --with-newlib "*)
    case "$target" in
     *-cygwin*)
-      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/include -isystem $$s/winsup/cygwin/include -isystem $$s/winsup/w32api/include'
+      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -isystem $$s/winsup/cygwin/include'
       ;;
    esac
 
@@ -13482,7 +13892,7 @@ else
   esac
   if test $ok = yes; then
     # An in-tree tool is available and we can use it
-    CXX_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/g++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ `if test -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags; then $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags --build-includes; else echo -funconfigured-libstdc++-v3 ; fi` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
+    CXX_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/xg++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ `if test -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags; then $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags --build-includes; else echo -funconfigured-libstdc++-v3 ; fi` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs'
     { $as_echo "$as_me:${as_lineno-$LINENO}: result: just compiled" >&5
 $as_echo "just compiled" >&6; }
   elif expr "x$CXX_FOR_TARGET" : "x/" > /dev/null; then
@@ -13527,7 +13937,7 @@ else
   esac
   if test $ok = yes; then
     # An in-tree tool is available and we can use it
-    RAW_CXX_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs'
+    RAW_CXX_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs'
     { $as_echo "$as_me:${as_lineno-$LINENO}: result: just compiled" >&5
 $as_echo "just compiled" >&6; }
   elif expr "x$RAW_CXX_FOR_TARGET" : "x/" > /dev/null; then
@@ -14231,6 +14641,16 @@ case ${enable_werror} in
 esac
 
 
+# Enable --enable-host-shared.
+# Check whether --enable-host-shared was given.
+if test "${enable_host_shared+set}" = set; then :
+  enableval=$enable_host_shared; host_shared=$enableval
+else
+  host_shared=no
+fi
+
+
+
 # Specify what files to not compare during bootstrap.
 
 compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"