From: Jim Meyering <meyering@redhat.com>
Date: Tue, 19 Jan 2010 07:47:17 +0000 (+0100)
Subject: regex_internal.h: define __attribute_warn_unused_result__
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=54b5ce0e1a4f6a4af37f970e45e6e173e5b0a1c6;p=pspp

regex_internal.h: define __attribute_warn_unused_result__

* lib/regex_internal.h (__attribute_warn_unused_result__): Define.
---

diff --git a/ChangeLog b/ChangeLog
index 8b5597f0db..193d27b229 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2010-01-28  Jim Meyering  <meyering@redhat.com>
 
+	regex_internal.h: define __attribute_warn_unused_result__
+	* lib/regex_internal.h (__attribute_warn_unused_result__): Define.
+
 	maint: add a syntax-check rule to check for vulnerable Makefile.in
 	* top/maint.mk (sc_vulnerable_makefile_CVE-2009-4029): New rule.
 
diff --git a/lib/regex_internal.h b/lib/regex_internal.h
index f5c3125fbd..704d1cc9d6 100644
--- a/lib/regex_internal.h
+++ b/lib/regex_internal.h
@@ -851,4 +851,12 @@ re_string_elem_size_at (const re_string_t *pstr, Idx idx)
 }
 #endif /* RE_ENABLE_I18N */
 
+#if __GNUC_PREREQ (3,4)
+# undef __attribute_warn_unused_result__
+# define __attribute_warn_unused_result__ \
+   __attribute__ ((__warn_unused_result__))
+#else
+# define __attribute_warn_unused_result__ /* empty */
+#endif
+
 #endif /*  _REGEX_INTERNAL_H */