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-rw-r--r--m4/lib-ld.m487
1 files changed, 48 insertions, 39 deletions
diff --git a/m4/lib-ld.m4 b/m4/lib-ld.m4
index 96c4e2c33..ddc569f73 100644
--- a/m4/lib-ld.m4
+++ b/m4/lib-ld.m4
@@ -1,50 +1,56 @@
-# lib-ld.m4 serial 3 (gettext-0.13)
-dnl Copyright (C) 1996-2003 Free Software Foundation, Inc.
+# lib-ld.m4 serial 6
+dnl Copyright (C) 1996-2003, 2009-2014 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 with replacements s/_*LT_PATH/AC_LIB_PROG/ and s/lt_/acl_/ to avoid
+dnl collision with libtool.m4.
-dnl From libtool-1.4. Sets the variable with_gnu_ld to yes or no.
+dnl From libtool-2.4. Sets the variable with_gnu_ld to yes or no.
AC_DEFUN([AC_LIB_PROG_LD_GNU],
-[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], acl_cv_prog_gnu_ld,
-[# I'd rather use --version here, but apparently some GNU ld's only accept -v.
+[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], [acl_cv_prog_gnu_ld],
+[# I'd rather use --version here, but apparently some GNU lds only accept -v.
case `$LD -v 2>&1 </dev/null` in
*GNU* | *'with BFD'*)
- acl_cv_prog_gnu_ld=yes ;;
+ acl_cv_prog_gnu_ld=yes
+ ;;
*)
- acl_cv_prog_gnu_ld=no ;;
+ acl_cv_prog_gnu_ld=no
+ ;;
esac])
with_gnu_ld=$acl_cv_prog_gnu_ld
])
-dnl From libtool-1.4. Sets the variable LD.
+dnl From libtool-2.4. 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 "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no)
-AC_REQUIRE([AC_PROG_CC])dnl
+[AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_CANONICAL_HOST])dnl
+
+AC_ARG_WITH([gnu-ld],
+ [AS_HELP_STRING([--with-gnu-ld],
+ [assume the C compiler uses GNU ld [default=no]])],
+ [test "$withval" = no || with_gnu_ld=yes],
+ [with_gnu_ld=no])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
+ # Determine PATH_SEPARATOR by trying to find /bin/sh in a PATH which
+ # contains only /bin. Note that ksh looks also at the FPATH variable,
+ # so we have to set that as well for the test.
+ PATH_SEPARATOR=:
+ (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \
+ && { (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \
+ || PATH_SEPARATOR=';'
+ }
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])
+ AC_MSG_CHECKING([for ld used by $CC])
case $host in
*-*-mingw*)
# gcc leaves a trailing carriage return which upsets mingw
@@ -54,12 +60,12 @@ if test "$GCC" = yes; then
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%/%"`
+ [[\\/]]* | ?:[[\\/]]*)
+ re_direlt='/[[^/]][[^/]]*/\.\./'
+ # Canonicalize the pathname 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"
;;
@@ -77,33 +83,36 @@ elif test "$with_gnu_ld" = yes; then
else
AC_MSG_CHECKING([for non-GNU ld])
fi
-AC_CACHE_VAL(acl_cv_path_LD,
+AC_CACHE_VAL([acl_cv_path_LD],
[if test -z "$LD"; then
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
+ acl_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
for ac_dir in $PATH; do
+ IFS="$acl_save_ifs"
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.
+ # but apparently some variants of GNU ld only accept -v.
# Break only if it was the GNU/non-GNU ld that we prefer.
- case `"$acl_cv_path_LD" -v 2>&1 < /dev/null` in
+ case `"$acl_cv_path_LD" -v 2>&1 </dev/null` in
*GNU* | *'with BFD'*)
- test "$with_gnu_ld" != no && break ;;
+ test "$with_gnu_ld" != no && break
+ ;;
*)
- test "$with_gnu_ld" != yes && break ;;
+ test "$with_gnu_ld" != yes && break
+ ;;
esac
fi
done
- IFS="$ac_save_ifs"
+ IFS="$acl_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)
+ AC_MSG_RESULT([$LD])
else
- AC_MSG_RESULT(no)
+ AC_MSG_RESULT([no])
fi
test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
AC_LIB_PROG_LD_GNU