mysql 5.5.6 first work

1 files changed, 32 insertions, 0 deletions

diff --git a/mysql-5.5-strmov.patch b/mysql-5.5-strmov.patch
new file mode 100644
index 0000000..6d28154
--- /dev/null
+++ b/mysql-5.5-strmov.patch
@@ -0,0 +1,32 @@
+Remove overly optimistic definition of strmov() as stpcpy().
+
+mysql uses this macro with overlapping source and destination strings,
+which is verboten per spec, and fails on some Red Hat platforms.
+Deleting the definition is sufficient to make it fall back to a
+byte-at-a-time copy loop, which should consistently give the
+expected behavior.
+
+Note: the particular case that prompted this patch is reported and fixed
+at http://bugs.mysql.com/bug.php?id=48864.  However, my faith in upstream's
+ability to detect this type of error is low, and I also see little evidence
+of any real performance gain from optimizing these calls.  So I'm keeping
+this patch.
+
+
+diff -up mysql-5.5.6-rc/include/m_string.h.orig mysql-5.5.6-rc/include/m_string.h
+--- mysql-5.5.6-rc/include/m_string.h.orig	2010-09-17 22:48:10.000000000 +0200
++++ mysql-5.5.6-rc/include/m_string.h	2010-09-24 19:22:01.948542880 +0200
+@@ -76,13 +76,6 @@ extern "C" {
+ extern void *(*my_str_malloc)(size_t);
+ extern void (*my_str_free)(void *);
+ 
+-#if defined(HAVE_STPCPY)
+-#define strmov(A,B) stpcpy((A),(B))
+-#ifndef stpcpy
+-extern char *stpcpy(char *, const char *);	/* For AIX with gcc 2.95.3 */
+-#endif
+-#endif
+-
+ /* Declared in int2str() */
+ extern char _dig_vec_upper[];
+ extern char _dig_vec_lower[];