]> git.ipfire.org Git - thirdparty/binutils-gdb.git/blobdiff - ld/configure.in
top level:
[thirdparty/binutils-gdb.git] / ld / configure.in
index 1bf0aab3e22e766e3d2485464e9a9117c6e1306f..8693d4570b41103a2c38065ec175ac5874ff4a55 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_PREREQ(2.57)
+AC_INIT(ldmain.c)
 
-srctrigger=ldmain.c
-srcname="linker"
-target_dependent=true
+AC_CANONICAL_SYSTEM
+AC_ISC_POSIX
 
-# per-host:
+changequote(,)dnl
+BFD_VERSION=`sed -n -e 's/^.._INIT_AUTOMAKE.*,[        ]*\([^  ]*\)[   ]*).*/\1/p' < ${srcdir}/../bfd/configure.in`
+changequote([,])dnl
+AM_INIT_AUTOMAKE(ld, ${BFD_VERSION})
 
-. ${srcdir}/../bfd/configure.host
+AM_PROG_LIBTOOL
 
-host_makefile_frag=
+AC_ARG_WITH(lib-path, [  --with-lib-path=dir1:dir2...  set default LIB_PATH],LIB_PATH=$withval)
+AC_ARG_ENABLE(targets,
+[  --enable-targets        alternative target configurations],
+[case "${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
 
-if [ -f ${srcdir}/config/${my_host}.mh ] ; then
-       host_makefile_frag=config/${my_host}.mh
+AC_ARG_WITH(sysroot,
+[  --with-sysroot[=DIR] Search for usr/lib et al within DIR.],
+[
+ case ${with_sysroot} in
+ yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
+ *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
+ esac
+
+ TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
+ use_sysroot=yes
+
+ if test "x$exec_prefix" = xNONE; then
+  if test "x$prefix" = xNONE; then
+   test_prefix=/usr/local
+  else
+   test_prefix=$prefix
+  fi
+ else
+  test_prefix=$exec_prefix
+ fi
+ case ${TARGET_SYSTEM_ROOT} in
+ "${test_prefix}"|"${test_prefix}/"*|\
+ '${exec_prefix}'|'${exec_prefix}/'*)
+   t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
+   TARGET_SYSTEM_ROOT_DEFINE="$t"
+   ;;
+ esac
+], [
+ use_sysroot=no
+ TARGET_SYSTEM_ROOT=
+ TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"\"'
+])
+AC_SUBST(use_sysroot)
+AC_SUBST(TARGET_SYSTEM_ROOT)
+AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
+
+# The location to which bugs should be reported.
+AC_ARG_WITH(bugurl,
+  AS_HELP_STRING([--with-bugurl=URL],
+                 [Direct users to URL to report a bug]),
+  [case "$withval" in
+    yes) AC_MSG_ERROR([bug URL not specified]) ;;
+    no)  REPORT_BUGS_TO="" ;;
+    *)   REPORT_BUGS_TO="<URL:$withval>" ;;
+   esac],
+   REPORT_BUGS_TO="<URL:http://www.sourceware.org/bugzilla/>"
+)
+AC_SUBST(REPORT_BUGS_TO)
+
+AM_BINUTILS_WARNINGS
+
+AM_CONFIG_HEADER(config.h:config.in)
+
+if test -z "$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="fr sv tr es da vi zh_CN zh_TW ga"
+ZW_GNU_GETTEXT_SISTER_DIR
+AM_PO_SUBDIRS
+
+AC_EXEEXT
+
+AC_PROG_YACC
+AM_PROG_LEX
+
+AM_MAINTAINER_MODE
+AM_CONDITIONAL(GENINSRC_NEVER, false)
+
+. ${srcdir}/configure.host
+
+AC_SUBST(HDEFINES)
+AC_SUBST(HOSTING_CRT0)
+AC_SUBST(HOSTING_LIBS)
+AC_SUBST(NATIVE_LIB_DIRS)
+
+AC_CHECK_HEADERS(string.h strings.h stdlib.h unistd.h elf-hints.h limits.h sys/param.h)
+AC_CHECK_FUNCS(sbrk realpath glob)
+AC_HEADER_DIRENT
+
+AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
+AC_CACHE_VAL(ld_cv_decl_getopt_unistd_h,
+[AC_TRY_COMPILE([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);],
+ld_cv_decl_getopt_unistd_h=yes, ld_cv_decl_getopt_unistd_h=no)])
+AC_MSG_RESULT($ld_cv_decl_getopt_unistd_h)
+if test $ld_cv_decl_getopt_unistd_h = yes; then
+  AC_DEFINE([HAVE_DECL_GETOPT], 1,
+           [Is the prototype for getopt in <unistd.h> in the expected format?])
+fi
+       
+BFD_BINARY_FOPEN
+
+AC_CHECK_DECLS([strstr, free, sbrk, getenv, environ])
+
+# When converting linker scripts into strings for use in emulation
+# files, use astring.sed if the compiler supports ANSI string
+# concatenation, or ostring.sed otherwise.  This is to support the
+# broken Microsoft MSVC compiler, which limits the length of string
+# constants, while still supporting pre-ANSI compilers which do not
+# support string concatenation.
+AC_MSG_CHECKING([whether ANSI C string concatenation works])
+AC_CACHE_VAL(ld_cv_string_concatenation,
+[AC_TRY_COMPILE(,[char *a = "a" "a";],
+  [ld_cv_string_concatenation=yes],
+  [ld_cv_string_concatenation=no])])
+AC_MSG_RESULT($ld_cv_string_concatenation)
+if test "$ld_cv_string_concatenation" = "yes"; then
+  STRINGIFY=astring.sed
+else
+  STRINGIFY=ostring.sed
 fi
+AC_SUBST(STRINGIFY)
 
-# per-target:
-
-case "${target}" in
-
-  sparc-sun-sunos4*)   my_target=sun4 
-                       ;;
-  m68k-sun-sunos[34]*) my_target=sun3
-                       ;;
-  sparclite*-fujitsu-*) my_target=sun4
-                       ;;
-  sparc*-*-aout)       my_target=sun4
-                       ;;
-# start-sanitize-v9
-  sparc64-*-elf*)      my_target=sparc64-elf
-                       ;;
-  sparc64*)            my_target=sun4
-                       ;;
-# end-sanitize-v9
-  i960-wrs-vxworks*)    my_target=i960
-                       ;;
-  i960-intel-nindy)    my_target=i960
-                       ;;
-  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=sun4
-                       ;;
-  m68k-ericsson-ose)   my_target=ose68
-                       ;;
-  m680[01234]0-ericsson-ose) my_target=ose68
-                       ;;
-  m683?2-ericsson-ose) my_target=ose68
-                       ;;
-  *-tandem-none)       my_target=st2000 # FIXME needs better name
-                       ;;
-  i[34]86-*-go32)      my_target=go32
-                       ;;
-  i[34]86-*-aix*)      my_target=i386-coff
-                       ;;
-  i[34]86-*-sco*)      my_target=i386-coff
-                       ;;
-  i[34]86-*-coff)      my_target=i386-coff
-                       ;;
-  i[34]86-*-bsd)       my_target=i386-bsd
-                       ;;
-  i[34]86-*-aout)      my_target=i386-aout
-                       ;;
-  i[34]86-*-sysv*)     my_target=i386-coff
-                       ;;
-  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
-                       ;;
-  h8500-*-hms)         my_target=coff-h8500
-                       ;;
-  sh-*-*)              my_target=coff-sh       
-                       ;;
-  m68k-sony-*)         my_target=news
-                       ;;
-  m68k-hp-bsd*)                my_target=hp300bsd
-                       ;;
-  m68*-*-aout)         my_target=m68k
-                       ;;
-  m68*-*-coff)         my_target=m68k-coff
-                       ;;
-  m68*-*-hpux)         my_target=hp300hpux
-                       ;;
-  m68*-*-*)            echo '***' "Unknown m68k target vendor for ld:" ${target_vendor} 1>&2
-                       exit 1
-                       ;;
-  hppa*-hp-osf)                my_target=hppaosf
-                       ;;
-  vax-dec-ultrix* | vax-dec-bsd*) my_target=vax
-                       ;;
-  mips-dec-ultrix*)    my_target=mips-lit
-                       ;;
-  mips-sgi-irix*)      my_target=mips-big
-                       ;;
-  mips-idt-ecoffl*)    my_target=mips-idtl
-                       ;;
-  mips-idt-ecoff*)     my_target=mips-idt
-                       ;;
-  mips-dec-bsd*)       my_target=mipsbsd
-                       ;;
-  z8k-*sim)            my_target=z8ksim
-                       ;;
-  *-*-aout)            my_target=${target_cpu}-${target_vendor} 
-                       ;;
-  *-*-coff)            my_target=${target_cpu}-${target_vendor} 
-                       ;;
+# 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
+
+    if test x${want64} = xfalse; then
+      . ${srcdir}/../bfd/config.bfd
+    fi
+
+    if test x${want64} = xtrue; then
+      targ_extra_emuls="$targ_extra_emuls $targ64_extra_emuls"
+      targ_extra_libpath="$targ_extra_libpath $targ64_extra_libpath"
+    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
+    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
+
+    for i in $targ_extra_ofiles; do
+       case " $all_emul_extras " in
+       *" ${i} "*) ;;
+       *)
+         all_emul_extras="$all_emul_extras ${i}"
+         ;;
+       esac
+    done
+  fi
+done
+
+AC_SUBST(EMUL)
+
+TDIRS=tdirs
+AC_SUBST_FILE(TDIRS)
+
+if test x${all_targets} = xtrue; then
+  if test x${want64} = xfalse; then
+    AC_CHECK_SIZEOF(long)
+    if test "x${ac_cv_sizeof_long}" = "x8"; then
+      want64=true
+    fi
+  fi
+  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=$all_emul_extras
+fi
+AC_SUBST(EMULATION_OFILES)
+AC_SUBST(EMUL_EXTRA_OFILES)
+AC_SUBST(LIB_PATH)
+
+EMULATION_LIBPATH=$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
 
-target_makefile_frag=config/${my_target}.mt
+case "$target_os" in
+  lynxos) EXTRA_SHLIB_EXTENSION=".a" ;;
+esac
 
-if [ ! -r ${srcdir}/${target_makefile_frag} ]; then
-       echo '***' GNU LD does not support target ${target} 1>&2
-       exit 1
+if test x${EXTRA_SHLIB_EXTENSION} != x ; then
+  AC_DEFINE_UNQUOTED(EXTRA_SHLIB_EXTENSION, "$EXTRA_SHLIB_EXTENSION",
+   [Additional extension a shared object might have.])
 fi
 
-mkdir ldscripts 2>/dev/null
+dnl Required by html and install-html
+AC_SUBST(datarootdir)
+AC_SUBST(docdir)
+AC_SUBST(htmldir)
+
+AC_OUTPUT(Makefile po/Makefile.in:po/Make-in)