Increase minor version number (to 2.10.91) to help tools detect the new
[external/binutils.git] / ld / configure.in
index de06382..9be07de 100644 (file)
-# This file is a shell script fragment that supplies the information
-# necessary to tailor a template configure script into the configure
-# script appropriate for this directory.  For more information, check
-# any existing configure script.
-
-srctrigger=ldmain.c
-srcname="linker"
-target_dependent=true
-
-# per-host:
-
-case "${host}" in
-
-  rs6000-ibm-aix*)     my_host=rs6000
-                       ;;
-  hppa*-hp-hpux)       my_host=hppahpux
-                       ;;
-  hppa*-hp-bsd)                my_host=hppabsd
-                       ;;
-  mips-dec-ultrix*)    my_host=decstation
-                       ;;
-  mips-sgi-irix3*)     my_host=irix3 
-                       ;;
-  mips-sgi-irix4*)     my_host=irix4
-                       ;;
-  m88k-motorola-*)     my_host=delta88
-                       ;;
-  m88k-dg-dgux*)       my_host=dgux
-                       ;;
-  m68k-cbm-amigados)   my_host=amigados
-                       ;;
-  m68k-cbm-svr4)       my_host=amix
-                       ;;
-  m68k-hp-hpux)                my_host=hp300    
-                       ;;
-  m68k-hp-bsd)         my_host=hp300bsd
-                       ;;
-  m68k-apollo*-sysv*)   my_host=apollov68
-                       ;;
-  m68k-apollo*-bsd*)    my_host=apollo68
-                       ;;
-  m68k-sony-*)         my_host=news
-                       ;;
-  m68k-sun-sunos*)     my_host=sun3
-                       ;;
-  i386-go32-*)         my_host=go32
-                       ;;
-  i386-*-sysv)         my_host=i386v
-                       ;;
-  i386-*-isc)          my_host=isc
-                       ;;
-  i386-*-mach)         my_host=i386mach
-                       ;;
-  i386-*-bsd)          my_host=i386-aout
-                       ;;
-  i386-*-msdos)                my_host=dose
-                       ;;
-  sparc-sun-sunos64)   my_host=sparc-ll
-                       ;;
-  sparc-sun-sunos4*)   my_host=sparc
-                       ;;
-  sparc-sun-solaris2)  my_host=solaris2
-                       ;;
-  romp-*-*)            my_host=rtbsd
-                       ;;
-  a29k-*-*)            my_host=ultra3
-                       ;;
-  tahoe-*-*)           my_host=tahoe
-                       ;;
-  vax-dec-ultrix*)     my_host=vaxult
-                       ;;
-  vax-dec-bsd*)                my_host=vaxbsd
-                       ;;
+dnl Process this file with autoconf to produce a configure script
+dnl
+AC_PREREG(2.13)
+AC_INIT(ldmain.c)
+
+AC_CANONICAL_SYSTEM
+
+AM_INIT_AUTOMAKE(ld, 2.10.91)
+
+AM_PROG_LIBTOOL
+
+AC_ARG_ENABLE(targets,
+[  --enable-targets        alternative target configurations],
+[case "${enableval}" in
+  yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
+            ;;
+  no)       enable_targets= ;;
+  *)        enable_targets=$enableval ;;
+esac])dnl
+AC_ARG_ENABLE(64-bit-bfd,
+[  --enable-64-bit-bfd     64-bit support (on hosts with narrower word sizes)],
+[case "${enableval}" in
+  yes)  want64=true  ;;
+  no)   want64=false ;;
+  *)    AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;
+esac],[want64=false])dnl
+
+build_warnings="-W -Wall"
+AC_ARG_ENABLE(build-warnings,
+[  --enable-build-warnings Enable build-time compiler warnings if gcc is used],
+[case "${enableval}" in
+  yes) ;;
+  no)  build_warnings="-w";;
+  ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
+        build_warnings="${build_warnings} ${t}";;
+  *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
+        build_warnings="${t} ${build_warnings}";;
+  *)    build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
 esac
+if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
+  echo "Setting warning flags = $build_warnings" 6>&1
+fi])dnl
+WARN_CFLAGS=""
+if test "x${build_warnings}" != x -a "x$GCC" = xyes ; then
+    WARN_CFLAGS="${build_warnings}"
+fi
+AC_SUBST(WARN_CFLAGS)
+
+AM_CONFIG_HEADER(config.h:config.in)
+
+if test -z "$target" ; then
+    AC_MSG_ERROR(Unrecognized target system type; please check config.sub.)
+fi
+if test -z "$host" ; then
+    AC_MSG_ERROR(Unrecognized host system type; please check config.sub.)
+fi
+
+# host-specific stuff:
+
+AC_PROG_CC
+AC_PROG_INSTALL
+
+ALL_LINGUAS=
+CY_GNU_GETTEXT
+
+AC_EXEEXT
+
+AC_PROG_YACC
+AM_PROG_LEX
+
+AM_MAINTAINER_MODE
+
+. ${srcdir}/configure.host
 
-# Set up to make a link between the host's include file and "sysdep.h".
-files="../bfd/hosts/${my_host}.h"
-links="sysdep.h"
+AC_SUBST(HDEFINES)
+AC_SUBST(HOSTING_CRT0)
+AC_SUBST(HOSTING_LIBS)
+AC_SUBST(NATIVE_LIB_DIRS)
 
-if [ ! -f ${srcdir}/${files} ] ; then
-       if [ -n "${my_host}" ] ; then
-               echo '***' No file ${srcdir}/${files} 1>&2
-       fi
-       echo '***' ${srcname} does not support host ${host} 1>&2
-       exit 1
+AC_CHECK_HEADERS(string.h strings.h stdlib.h unistd.h)
+AC_CHECK_FUNCS(sbrk)
+AC_HEADER_DIRENT
+
+BFD_BINARY_FOPEN
+
+BFD_NEED_DECLARATION(strstr)
+BFD_NEED_DECLARATION(free)
+BFD_NEED_DECLARATION(sbrk)
+BFD_NEED_DECLARATION(getenv)
+BFD_NEED_DECLARATION(environ)
+
+# When converting linker scripts into strings for use in emulation
+# files, use astring.sed if the compiler supports ANSI string
+# concatenation, or ostring.sed otherwise.  This is to support the
+# broken Microsoft MSVC compiler, which limits the length of string
+# constants, while still supporting pre-ANSI compilers which do not
+# support string concatenation.
+AC_MSG_CHECKING([whether ANSI C string concatenation works])
+AC_CACHE_VAL(ld_cv_string_concatenation,
+[AC_TRY_COMPILE(,[char *a = "a" "a";],
+  [ld_cv_string_concatenation=yes],
+  [ld_cv_string_concatenation=no])])
+AC_MSG_RESULT($ld_cv_string_concatenation)
+if test "$ld_cv_string_concatenation" = "yes"; then
+  STRINGIFY=astring.sed
+else
+  STRINGIFY=ostring.sed
 fi
+AC_SUBST(STRINGIFY)
+
+# target-specific stuff:
+
+all_targets=
+EMUL=
+all_emuls=
+all_emul_extras=
+all_libpath=
+
+dnl We need to get an arbitrary number of tdir definitions into
+dnl Makefile.  We can't do it using AC_SUBST, because autoconf does
+dnl not permit literal newlines in an AC_SUBST variables.  So we use a
+dnl file.
+rm -f tdirs
+
+for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
+do
+  if test "$targ_alias" = "all"; then
+    all_targets=true
+  else
+    # Canonicalize the secondary target names.
+    result=`$ac_config_sub $targ_alias 2>/dev/null`
+    if test -n "$result"; then
+       targ=$result
+    else
+       targ=$targ_alias
+    fi
+
+    . ${srcdir}/configure.tgt
+
+    if test "$targ" = "$target"; then
+      EMUL=$targ_emul
+    fi
 
-host_makefile_frag=
+    for i in $targ_emul $targ_extra_emuls $targ_extra_libpath; do
+       case " $all_emuls " in
+       *" e${i}.o "*) ;;
+       *)
+         all_emuls="$all_emuls e${i}.o"
+         eval result=\$tdir_$i
+         test -z "$result" && result=$targ_alias
+         echo tdir_$i=$result >> tdirs
+         ;;
+       esac
+    done
 
-if [ -f ${srcdir}/config/${my_host}.mh ] ; then
-       host_makefile_frag=config/${my_host}.mh
+    for i in $targ_emul $targ_extra_libpath; do
+       case " $all_libpath " in
+       *" ${i} "*) ;;
+       *)
+         if test -z "$all_libpath"; then
+           all_libpath=${i}
+         else
+           all_libpath="$all_libpath ${i}"
+         fi
+         ;;
+       esac
+    done
+
+    for i in $targ_extra_ofiles; do
+       case " $all_emul_extras " in
+       *" ${i} "*) ;;
+       *)
+         all_emul_extras="$all_emul_extras ${i}"
+         ;;
+       esac
+    done
+  fi
+done
+
+AC_SUBST(EMUL)
+
+TDIRS=tdirs
+AC_SUBST_FILE(TDIRS)
+
+dnl FIXME: We will build a 64 bit BFD for a 64 bit host or a 64 bit
+dnl target, and in those cases we should also build the 64 bit
+dnl emulations.
+if test x${all_targets} = xtrue; then
+  if test x${want64} = xtrue; then
+    EMULATION_OFILES='$(ALL_EMULATIONS) $(ALL_64_EMULATIONS)'
+  else
+    EMULATION_OFILES='$(ALL_EMULATIONS)'
+  fi
+  EMUL_EXTRA_OFILES='$(ALL_EMUL_EXTRA_OFILES)'
+else
+  EMULATION_OFILES=$all_emuls
+  EMUL_EXTRA_OFILES=$all_emul_extras
 fi
+AC_SUBST(EMULATION_OFILES)
+AC_SUBST(EMUL_EXTRA_OFILES)
 
-# per-target:
-
-case "${target}" in
-
-  sparc-sun-sunos4*)   my_target=sun4 
-                       ;;
-  m68k-sun-sunos4*)    my_target=sun3
-                       ;;
-  sparclite-fujitsu-*)  my_target=sun4
-                       ;;
-  i960-wrs-vxworks*)    my_target=vxworks960
-                       ;;
-  m68k-wrs-vxworks*)    my_target=vxworks68
-                       ;;
-  m680[01234]0-wrs-vxworks*) my_target=vxworks68
-                       ;;
-  m683?2-wrs-vxworks*)  my_target=vxworks68
-                       ;;
-  sparc-wrs-vxworks*)   my_target=vxsparc
-                       ;;
-  m68k-ericsson-ose)   my_target=ose68
-                       ;;
-  *-tandem-none)       my_target=st2000 # FIXME needs better name
-                       ;;
-  i386-go32-*)         my_target=go32
-                       ;;
-  i386-*-coff)          my_target=i386-coff
-                       ;;
-  i386-*-aout)         my_target=i386-aout
-                       ;;
-  m88k-*-*)            my_target=m88k-bcs
-                       ;;
-  a29k-*-udi)          my_target=sa29200
-                       ;;
-  a29k-*-ebmon)                my_target=ebmon29k
-                       ;;
-  a29k-*-*)            my_target=coff-a29k
-                       ;;
-  h8300-*-hms)         my_target=coff-h8300
-                       ;;
-  h8300-*-xray)                my_target=ieee-h8300
-                       ;;
-  m68k-sony-*)         my_target=news
-                       ;;
-  m68k-hp-bsd*)                my_target=hp300bsd
-                       ;;
-  m68*-*-aout)         my_target=m68k
-                       ;;
-  m68*-*-coff)         my_target=m68k-coff
-                       ;;
-  m68*-*-*)            echo '***' "Unknown m68k target vendor for ld:" ${target_vendor} 1>&2
-                       exit 1
-                       ;;
-  z8k-*sim)            my_target=z8ksim
-                       ;;
-  *-*-aout)            my_target=${target_cpu}-${target_vendor} 
-                       ;;
-  *-*-coff)            my_target=${target_cpu}-${target_vendor} 
-                       ;;
-esac
+EMULATION_LIBPATH=$all_libpath
+AC_SUBST(EMULATION_LIBPATH)
 
+if test x${enable_static} = xno; then
+  TESTBFDLIB="--rpath ../bfd/.libs ../bfd/.libs/libbfd.so"
+else
+  TESTBFDLIB="../bfd/.libs/libbfd.a"
+fi
+AC_SUBST(TESTBFDLIB)
 
+target_vendor=${target_vendor=$host_vendor}
+case "$target_vendor" in
+  hp) EXTRA_SHLIB_EXTENSION=".sl" ;;
+  *)  EXTRA_SHLIB_EXTENSION= ;;
+esac
+if test x${EXTRA_SHLIB_EXTENSION} != x ; then
+  AC_DEFINE_UNQUOTED(EXTRA_SHLIB_EXTENSION, "$EXTRA_SHLIB_EXTENSION",
+   [Additional extension a shared object might have.])
+fi
 
-target_makefile_frag=config/${my_target}.mt
+AC_OUTPUT(Makefile po/Makefile.in:po/Make-in,
+[sed -e '/POTFILES =/r po/POTFILES' po/Makefile.in > po/Makefile])