lib-ld.m4
上传用户:riyaled888
上传日期:2009-03-27
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文件大小:3k
- # lib-ld.m4 serial 1 (gettext-0.11)
- dnl Copyright (C) 1996-2002 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 "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no)
- AC_REQUIRE([AC_PROG_CC])dnl
- AC_REQUIRE([AC_CANONICAL_HOST])dnl
- ac_prog=ld
- if test "$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 ' 15'` ;;
- *)
- 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
- ])