* Makefile.am (ALL_EMULATIONS): Remove ehppaelf.o.
[deliverable/binutils-gdb.git] / ld / configure.in
index c315fd74b05b4792bc5a8147360ce4b9ecd32fa6..32fc5f65ad16a91b847585264d08e65ee46b6a8f 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.
+dnl Process this file with autoconf to produce a configure script
+dnl
+AC_PREREG(2.13)
+AC_INIT(ldmain.c)
 
-srctrigger=ldmain.c
-srcname="linker"
+AC_CANONICAL_SYSTEM
 
-# per-host:
+AM_INIT_AUTOMAKE(ld, 2.9.5)
 
-if [ "${host_os}" = "posix" ] ; then
-       my_host=posix
-else
-       case "${host_cpu}" in
-       rs6000) my_host=aix ;;
-       mips)
-               case "${host_vendor}" in
-               dec)    my_host=dec3100 ;;
-               esac
-               ;;
-       m88k)
-               case "${host_vendor}" in
-               *)
-                       case "${host_os}" in
-                       dgux)   my_host=dgux ;;
-                       esac
-                       ;;
-               esac
-               ;;
-
-       m68k)
-               case "${host_vendor}" in
-               hp)     my_host=hp9000 ;;
-               sony)   my_host=news ;;
-               sun)    my_host=sun3 ;;
-               esac
-               ;;
-
-       i386)
-               case "${host_vendor}" in
-               *)
-                       case "${host_os}" in
-                       sysv)   my_host=i386v ;;
-                       esac
-                       ;;
-               esac
-               ;;
-
-       sparc)
-               case "${host_vendor}" in
-               sun)    my_host=sun4 ;;
-               esac
-               ;;
-
-       rtpc)   my_host=rtbsd ;;
-       tahoe | vax)    my_host=${host_cpu} ;;
-       esac
+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 ${enableval} for 64-bit-bfd option) ;;
+esac],[want64=false])dnl
+
+AM_CONFIG_HEADER(config.h:config.in)
+
+if test -z "$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
 
-if [ ! -f config/h-${my_host} ] ; then
-       echo '***' The linker do not support host ${host}
-       exit 1
+AC_EXEEXT
+
+AC_PROG_YACC
+AM_PROG_LEX
+
+AM_MAINTAINER_MODE
+
+. ${srcdir}/configure.host
+
+AC_SUBST(HDEFINES)
+AC_SUBST(HOSTING_CRT0)
+AC_SUBST(HOSTING_LIBS)
+AC_SUBST(NATIVE_LIB_DIRS)
+
+AC_CHECK_HEADERS(string.h strings.h stdlib.h unistd.h)
+AC_CHECK_FUNCS(sbrk)
+AC_HEADER_DIRENT
+
+BFD_BINARY_FOPEN
+
+BFD_NEED_DECLARATION(strstr)
+BFD_NEED_DECLARATION(free)
+BFD_NEED_DECLARATION(sbrk)
+BFD_NEED_DECLARATION(getenv)
+BFD_NEED_DECLARATION(environ)
+
+# When converting linker scripts into strings for use in emulation
+# files, use astring.sed if the compiler supports ANSI string
+# concatenation, or ostring.sed otherwise.  This is to support the
+# broken Microsoft MSVC compiler, which limits the length of string
+# constants, while still supporting pre-ANSI compilers which do not
+# support string concatenation.
+AC_MSG_CHECKING([whether ANSI C string concatenation works])
+AC_CACHE_VAL(ld_cv_string_concatenation,
+[AC_TRY_COMPILE(,[char *a = "a" "a";],
+  [ld_cv_string_concatenation=yes],
+  [ld_cv_string_concatenation=no])])
+AC_MSG_RESULT($ld_cv_string_concatenation)
+if test "$ld_cv_string_concatenation" = "yes"; then
+  STRINGIFY=astring.sed
+else
+  STRINGIFY=ostring.sed
 fi
+AC_SUBST(STRINGIFY)
 
-host_makefile_frag=config/h-${my_host}
+# target-specific stuff:
 
-# per-target:
+all_targets=
+EMUL=
+all_emuls=
+all_emul_extras=
+all_libpath=
 
-case ${target_cpu} in
-sparc)
-       case ${target_vendor} in
-       sun) my_target=sun4 ;;
+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
+
+    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
-       ;;
-m88k)  my_target=m88k-bcs ;;
-a29k)  my_target=coff-a29k ;;
-h8300) my_target=h8300hds ;;
-m68k)  
-       case ${target_vendor} in
-       sun) my_target=sun3 ;;
-       sony) my_target=news;;
-       *) echo "Unknown 68k target vendor:" ${target_vendor} ;;
+    done
+
+    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
 
-esac
+    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)
 
-target_makefile_frag=config/t-${my_target}
+dnl FIXME: We will build a 64 bit BFD for a 64 bit host or a 64 bit
+dnl target, and in those cases we should also build the 64 bit
+dnl emulations.
+if test x${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=$all_emul_extras
+fi
+AC_SUBST(EMULATION_OFILES)
+AC_SUBST(EMUL_EXTRA_OFILES)
+
+EMULATION_LIBPATH=$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
 
-files=
-links=
+AC_OUTPUT(Makefile po/Makefile.in:po/Make-in,
+[sed -e '/POTFILES =/r po/POTFILES' po/Makefile.in > po/Makefile])
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