mirror of git://gcc.gnu.org/git/gcc.git
111 lines
3.5 KiB
Plaintext
111 lines
3.5 KiB
Plaintext
# lib-ld.m4 serial 2 (gettext-0.12)
|
|
dnl Copyright (C) 1996-2003 Free Software Foundation, Inc.
|
|
dnl This file is free software, distributed under the terms of the GNU
|
|
dnl General Public License. As a special exception to the GNU General
|
|
dnl Public License, this file may be distributed as part of a program
|
|
dnl that contains a configuration script generated by Autoconf, under
|
|
dnl the same distribution terms as the rest of that program.
|
|
|
|
dnl Subroutines of libtool.m4,
|
|
dnl with replacements s/AC_/AC_LIB/ and s/lt_cv/acl_cv/ to avoid collision
|
|
dnl with libtool.m4.
|
|
|
|
dnl From libtool-1.4. Sets the variable with_gnu_ld to yes or no.
|
|
AC_DEFUN([AC_LIB_PROG_LD_GNU],
|
|
[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], acl_cv_prog_gnu_ld,
|
|
[# I'd rather use --version here, but apparently some GNU ld's only accept -v.
|
|
if $LD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' 1>&5; then
|
|
acl_cv_prog_gnu_ld=yes
|
|
else
|
|
acl_cv_prog_gnu_ld=no
|
|
fi])
|
|
with_gnu_ld=$acl_cv_prog_gnu_ld
|
|
])
|
|
|
|
dnl From libtool-1.4. Sets the variable LD.
|
|
AC_DEFUN([AC_LIB_PROG_LD],
|
|
[AC_ARG_WITH(gnu-ld,
|
|
[ --with-gnu-ld assume the C compiler uses GNU ld [default=no]],
|
|
test "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no)
|
|
AC_REQUIRE([AC_PROG_CC])dnl
|
|
AC_REQUIRE([AC_CANONICAL_HOST])dnl
|
|
# Prepare PATH_SEPARATOR.
|
|
# The user is always right.
|
|
if test "${PATH_SEPARATOR+set}" != set; then
|
|
echo "#! /bin/sh" >conf$$.sh
|
|
echo "exit 0" >>conf$$.sh
|
|
chmod +x conf$$.sh
|
|
if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
|
|
PATH_SEPARATOR=';'
|
|
else
|
|
PATH_SEPARATOR=:
|
|
fi
|
|
rm -f conf$$.sh
|
|
fi
|
|
ac_prog=ld
|
|
if test "$GCC" = yes; then
|
|
# Check if gcc -print-prog-name=ld gives a path.
|
|
AC_MSG_CHECKING([for ld used by GCC])
|
|
case $host in
|
|
*-*-mingw*)
|
|
# gcc leaves a trailing carriage return which upsets mingw
|
|
ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
|
|
*)
|
|
ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
|
|
esac
|
|
case $ac_prog in
|
|
# Accept absolute paths.
|
|
[[\\/]* | [A-Za-z]:[\\/]*)]
|
|
[re_direlt='/[^/][^/]*/\.\./']
|
|
# Canonicalize the path of ld
|
|
ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'`
|
|
while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
|
|
ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
|
|
done
|
|
test -z "$LD" && LD="$ac_prog"
|
|
;;
|
|
"")
|
|
# If it fails, then pretend we aren't using GCC.
|
|
ac_prog=ld
|
|
;;
|
|
*)
|
|
# If it is relative, then search for the first ld in PATH.
|
|
with_gnu_ld=unknown
|
|
;;
|
|
esac
|
|
elif test "$with_gnu_ld" = yes; then
|
|
AC_MSG_CHECKING([for GNU ld])
|
|
else
|
|
AC_MSG_CHECKING([for non-GNU ld])
|
|
fi
|
|
AC_CACHE_VAL(acl_cv_path_LD,
|
|
[if test -z "$LD"; then
|
|
IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
|
|
for ac_dir in $PATH; do
|
|
test -z "$ac_dir" && ac_dir=.
|
|
if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
|
|
acl_cv_path_LD="$ac_dir/$ac_prog"
|
|
# Check to see if the program is GNU ld. I'd rather use --version,
|
|
# but apparently some GNU ld's only accept -v.
|
|
# Break only if it was the GNU/non-GNU ld that we prefer.
|
|
if "$acl_cv_path_LD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then
|
|
test "$with_gnu_ld" != no && break
|
|
else
|
|
test "$with_gnu_ld" != yes && break
|
|
fi
|
|
fi
|
|
done
|
|
IFS="$ac_save_ifs"
|
|
else
|
|
acl_cv_path_LD="$LD" # Let the user override the test with a path.
|
|
fi])
|
|
LD="$acl_cv_path_LD"
|
|
if test -n "$LD"; then
|
|
AC_MSG_RESULT($LD)
|
|
else
|
|
AC_MSG_RESULT(no)
|
|
fi
|
|
test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
|
|
AC_LIB_PROG_LD_GNU
|
|
])
|