# lib-ld.m4 serial 4 (gettext-0.18) dnl Copyright (C) 1996-2003, 2009-2010 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. 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 ($LD) is GNU ld], [acl_cv_prog_gnu_ld], [# I'd rather use --version here, but apparently some GNU ld's only accept -v. case `$LD -v 2>&1 </dev/null` in *GNU* | *'with BFD'*) acl_cv_prog_gnu_ld=yes ;; *) acl_cv_prog_gnu_ld=no ;; esac]) 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/$ac_prog" # Check to see if the program is GNU ld. I'd rather use --version, # but apparently some GNU ld's only accept -v. # Break only if it was the GNU/non-GNU ld that we prefer. case `"$acl_cv_path_LD" -v 2>&1 < /dev/null` in *GNU* | *'with BFD'*) test "$with_gnu_ld" != no && break ;; *) test "$with_gnu_ld" != yes && break ;; esac 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 ])