# HG changeset patch
# User Bruno Haible <bruno@clisp.org>
# Date 1280517493 -7200
# Node ID 37d7bd3f8a397a13485b50f073b60fa49261eeeb
# Parent  c0da50f818a36e739a6a9e14354305ba2ef39626
truncl: Fix autoconf test.

diff -r c0da50f818a3 -r 37d7bd3f8a39 ChangeLog
--- a/ChangeLog	Fri Jul 30 21:14:41 2010 +0200
+++ b/ChangeLog	Fri Jul 30 21:18:13 2010 +0200
@@ -1,3 +1,10 @@
+2010-07-30  Bruno Haible  <bruno@clisp.org>
+
+	truncl: Fix autoconf test.
+	* m4/truncl.m4 (gl_FUNC_TRUNCL): Add TRUNCL_LIBM to LIBS while testing
+	whether truncl works.
+	Reported by Rainer Tammer.
+
 2010-07-30  Bruno Haible  <bruno@clisp.org>
 
 	round: Update regarding AIX.
diff -r c0da50f818a3 -r 37d7bd3f8a39 m4/truncl.m4
--- a/m4/truncl.m4	Fri Jul 30 21:14:41 2010 +0200
+++ b/m4/truncl.m4	Fri Jul 30 21:18:13 2010 +0200
@@ -1,4 +1,4 @@
-# truncl.m4 serial 4
+# truncl.m4 serial 5
 dnl Copyright (C) 2007-2008, 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,
@@ -40,6 +40,8 @@
       TRUNCL_LIBM=
     fi
     dnl Test whether truncl() works. It crashes on OSF/1 4.0d.
+    save_LIBS="$LIBS"
+    LIBS="$LIBS $TRUNCL_LIBM"
     AC_CACHE_CHECK([whether truncl works], [gl_cv_func_truncl_works],
       [
         AC_TRY_RUN([
@@ -56,6 +58,7 @@
            esac
           ])
       ])
+    LIBS="$save_LIBS"
     case "$gl_cv_func_truncl_works" in
       *yes) ;;
       *) REPLACE_TRUNCL=1 ;;