From: Bruno Haible <bruno@clisp.org>
Date: Mon, 24 Apr 2006 11:30:53 +0000 (+0000)
Subject: Apply a fix from Eric Blake that already went into autoconf.
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=69906f2e611a9567614179788a22a585ac643302;p=pspp

Apply a fix from Eric Blake that already went into autoconf.
---

diff --git a/m4/ChangeLog b/m4/ChangeLog
index b2dc0aec7a..8dd49e141a 100644
--- 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
index 28924b1752..e3b5d0cfda 100644
--- a/m4/strerror_r.m4
+++ b/m4/strerror_r.m4
@@ -25,6 +25,7 @@ AC_CACHE_CHECK([whether strerror_r returns char *],
 	  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