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[PATCH] regex: port __libc_lock_define usage to C89


From: Paul Eggert
Subject: [PATCH] regex: port __libc_lock_define usage to C89
Date: Tue, 01 Jan 2013 08:01:00 -0800
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/17.0 Thunderbird/17.0

* lib/regex_internal.h (__libc_lock_define) [!_LIBC]: Remove.
(struct re_dfa_t): Use #ifdef instead.  '__libc_lock_define (, lock)'
does not conform to C89, as it has an empty macro argument.
Reported by Aharon Robbins in
<http://sourceware.org/ml/libc-alpha/2012-12/msg00456.html>.
---
 ChangeLog            | 9 +++++++++
 lib/regex_internal.h | 3 ++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index de1c81c..cab9521 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2013-01-01  Paul Eggert  <address@hidden>
+
+       regex: port __libc_lock_define usage to C89
+       * lib/regex_internal.h (__libc_lock_define) [!_LIBC]: Remove.
+       (struct re_dfa_t): Use #ifdef instead.  '__libc_lock_define (, lock)'
+       does not conform to C89, as it has an empty macro argument.
+       Reported by Aharon Robbins in
+       <http://sourceware.org/ml/libc-alpha/2012-12/msg00456.html>.
+
 2013-01-01  Eric Blake  <address@hidden>
 
        maint: update all copyright year number ranges
diff --git a/lib/regex_internal.h b/lib/regex_internal.h
index 32b6b67..43fae40 100644
--- a/lib/regex_internal.h
+++ b/lib/regex_internal.h
@@ -35,7 +35,6 @@
 #if defined _LIBC
 # include <bits/libc-lock.h>
 #else
-# define __libc_lock_define(CLASS,NAME)
 # define __libc_lock_init(NAME) do { } while (0)
 # define __libc_lock_lock(NAME) do { } while (0)
 # define __libc_lock_unlock(NAME) do { } while (0)
@@ -699,7 +698,9 @@ struct re_dfa_t
 #ifdef DEBUG
   char* re_str;
 #endif
+#ifdef _LIBC
   __libc_lock_define (, lock)
+#endif
 };
 
 #define re_node_set_init_empty(set) memset (set, '\0', sizeof (re_node_set))
-- 
1.7.11.7




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