* lib-ignore.m4 (gl_IGNORE_UNUSED_LIBRARIES): Use -Wl,-z,ignore

rather than -Xlinker -z -Xlinker ignore, as it's more portable.

diff --git a/m4/ChangeLog b/m4/ChangeLog
index 4c4cefcc44e7fb077f30dc71c83acd8dfc6dad3e..4f134b27267d2e9ecc9945bbc3420ac93ce641a9 100644 (file)
--- a/m4/ChangeLog
+++ b/m4/ChangeLog
@@ -1,3 +1,9 @@
+2006-01-20  Paul Eggert  <eggert@cs.ucla.edu>
+
+       * lib-ignore.m4 (gl_IGNORE_UNUSED_LIBRARIES): Use -Wl,-z,ignore
+       rather than -Xlinker -z -Xlinker ignore, as it's more portable.
+       Suggested by Bruno Haible.
+
 2006-01-19  Simon Josefsson  <jas@extundo.com>
 
        * socklen.m4: Look in ws2tcpip.h too, for mingw32.

diff --git a/m4/lib-ignore.m4 b/m4/lib-ignore.m4
index a84ca167e4ef5503194a7405b63e4c58ab8f5834..348f6f44ae073ea031268caf0f0e81f6baa9ffd3 100644 (file)
--- a/m4/lib-ignore.m4
+++ b/m4/lib-ignore.m4
@@ -15,16 +15,10 @@ AC_DEFUN([gl_IGNORE_UNUSED_LIBRARIES],
      gl_saved_ldflags=$LDFLAGS
      # Use long option sequences like '-z ignore' to test for the feature,
      # to forestall problems with linkers that have -z, -i, -g, -n, etc. flags.
-     for gl_flags in '-Xlinker -z -Xlinker ignore' '-z ignore'; do
+     for gl_flags in '-Wl,-z,ignore' '-z ignore'; do
        LDFLAGS="$gl_flags $LDFLAGS"
        AC_LINK_IFELSE([AC_LANG_PROGRAM()],
-        [case $gl_flags in
-           '-Xlinker -z -Xlinker ignore')
-             # Shorten this ugly thing, for prettier 'make' output.
-              gl_cv_ignore_unused_libraries='-Xlinker -zignore';;
-           *)
-             gl_cv_ignore_unused_libraries=$gl_flags;;
-          esac])
+        [gl_cv_ignore_unused_libraries=$gl_flags])
        LDFLAGS=$gl_saved_ldflags
        test "$gl_cv_ignore_unused_libraries" != none && break
      done])