# HG changeset patch
# User Bruno Haible <bruno@clisp.org>
# Date 1145878253 0
# Node ID 6fd1638155480adebd6106817216e8db32f52333
# Parent  aca74c06bca06e399f075ec123c67c564d121983
Apply a fix from Eric Blake that already went into autoconf.

diff --git a/m4/ChangeLog b/m4/ChangeLog
--- a/m4/ChangeLog
+++ b/m4/ChangeLog
@@ -1,3 +1,7 @@
+2006-03-04  Eric Blake  <ebb9@byu.net>
+
+	* strerror_r.m4 (AC_FUNC_STRERROR_R): Avoid unused variable warning.
+
 2006-04-24  Paul Eggert  <eggert@cs.ucla.edu>
 
 	* fsusage.m4 (gl_FILE_SYSTEM_USAGE): Use return, not exit.
diff --git a/m4/strerror_r.m4 b/m4/strerror_r.m4
--- a/m4/strerror_r.m4
+++ b/m4/strerror_r.m4
@@ -25,6 +25,7 @@
 	  char buf[100];
 	  char x = *strerror_r (0, buf, sizeof buf);
 	  char *p = strerror_r (0, buf, sizeof buf);
+	  return !p || x;
 	]])],
 			ac_cv_func_strerror_r_char_p=yes)
     else