| # 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_REQUIRE([AC_PROG_EGREP])dnl |
| 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 "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no) |
| AC_REQUIRE([AC_PROG_CC])dnl |
| AC_REQUIRE([AC_CANONICAL_HOST])dnl |
| AC_REQUIRE([AC_PROG_EGREP])dnl |
| # Prepare PATH_SEPARATOR. |
| # The user is always right. |
| if test "${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 |
| ]) |