From: Paul Eggert <eggert@cs.ucla.edu>
Date: Mon, 19 Jun 2006 07:19:00 +0000 (+0000)
Subject: (gl_IGNORE_UNUSED_LIBRARIES): Prefer binutils's
X-Git-Tag: v6.0~293
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=050ec5cb29345afb71213ef17b780789b9673564;p=thirdparty%2Fcoreutils.git

(gl_IGNORE_UNUSED_LIBRARIES): Prefer binutils's
--as-needed option if available.
---

diff --git a/m4/ChangeLog b/m4/ChangeLog
index 2fc9a180bb..8ad70a2ee6 100644
--- a/m4/ChangeLog
+++ b/m4/ChangeLog
@@ -1,3 +1,9 @@
+2006-06-19  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* lib-ignore.m4 (gl_IGNORE_UNUSED_LIBRARIES): Prefer binutils's
+	--as-needed option if available.  Problem reported by Albert Chin in
+	<http://lists.gnu.org/archive/html/bug-gnulib/2006-06/msg00114.html>.
+
 2006-06-18  Jim Meyering  <jim@meyering.net>
 
 	Test for a bug that causes glibc's getcwd to suffer a failed assertion.
diff --git a/m4/lib-ignore.m4 b/m4/lib-ignore.m4
index 348f6f44ae..deaaee8e66 100644
--- a/m4/lib-ignore.m4
+++ b/m4/lib-ignore.m4
@@ -15,7 +15,12 @@ AC_DEFUN([gl_IGNORE_UNUSED_LIBRARIES],
      gl_saved_ldflags=$LDFLAGS
      # Use long option sequences like '-z ignore' to test for the feature,
      # to forestall problems with linkers that have -z, -i, -g, -n, etc. flags.
-     for gl_flags in '-Wl,-z,ignore' '-z ignore'; do
+     for gl_flags in \
+	'-Wl,--as-needed' \
+	'-Wl,-z,ignore' \
+	'--as-needed' \
+	'-z ignore'
+     do
        LDFLAGS="$gl_flags $LDFLAGS"
        AC_LINK_IFELSE([AC_LANG_PROGRAM()],
 	 [gl_cv_ignore_unused_libraries=$gl_flags])