Use var_InheritString for --decklink-video-connection.

[vlc] / m4 / lib-ld.m4

diff --git a/m4/lib-ld.m4 b/m4/lib-ld.m4
index ddb573234cb1f84b26f77646d835818c7ecec567..ebb30528bd5abfdfcc2126175cbe1de99d902457 100644 (file)
--- a/m4/lib-ld.m4
+++ b/m4/lib-ld.m4
@@ -1,10 +1,8 @@
-# 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.
+# 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
@@ -12,23 +10,37 @@ 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 ($LD) is GNU ld], acl_cv_prog_gnu_ld,
+[AC_CACHE_CHECK([if the linker ($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 $LD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' 1>&5; then
-  acl_cv_prog_gnu_ld=yes
-else
-  acl_cv_prog_gnu_ld=no
-fi])
+case `$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,
+[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 "$GCC" = yes; then
   # Check if gcc -print-prog-name=ld gives a path.
@@ -47,7 +59,7 @@ if test "$GCC" = yes; then
       # 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%/%"`
+        ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
       done
       test -z "$LD" && LD="$ac_prog"
       ;;
@@ -65,7 +77,7 @@ 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-:}"
   for ac_dir in $PATH; do
@@ -75,11 +87,12 @@ AC_CACHE_VAL(acl_cv_path_LD,
       # Check to see if the program is GNU ld.  I'd rather use --version,
       # but apparently some GNU ld's only accept -v.
       # Break only if it was the GNU/non-GNU ld that we prefer.
-      if "$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
+      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"
@@ -88,9 +101,9 @@ else
 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