diff --git a/mysql-va-list.patch b/mysql-va-list.patch
new file mode 100644
index 0000000..a76d0eb
--- /dev/null
+++ b/mysql-va-list.patch
@@ -0,0 +1,55 @@
+Fix unportable usage associated with va_list arguments.  Passing "0" to
+a va_list argument only works if va_list is an integer or pointer type,
+which is not required by the C spec, and is not true on ARM for instance.
+Per bug #744707.
+
+
+diff -Naur mysql-5.5.16.orig/sql-common/client_plugin.c mysql-5.5.16/sql-common/client_plugin.c
+--- mysql-5.5.16.orig/sql-common/client_plugin.c	2011-09-09 11:56:39.000000000 -0400
++++ mysql-5.5.16/sql-common/client_plugin.c	2011-10-16 23:00:00.708799138 -0400
+@@ -228,11 +228,13 @@
+ {
+   MYSQL mysql;
+   struct st_mysql_client_plugin **builtin;
++  va_list unused;
+ 
+   if (initialized)
+     return 0;
+ 
+   bzero(&mysql, sizeof(mysql)); /* dummy mysql for set_mysql_extended_error */
++  bzero(&unused, sizeof(unused)); /* suppress uninitialized-value warnings */
+ 
+   pthread_mutex_init(&LOCK_load_client_plugin, MY_MUTEX_INIT_SLOW);
+   init_alloc_root(&mem_root, 128, 128);
+@@ -244,7 +246,7 @@
+   pthread_mutex_lock(&LOCK_load_client_plugin);
+ 
+   for (builtin= mysql_client_builtins; *builtin; builtin++)
+-    add_plugin(&mysql, *builtin, 0, 0, 0);
++    add_plugin(&mysql, *builtin, 0, 0, unused);
+ 
+   pthread_mutex_unlock(&LOCK_load_client_plugin);
+ 
+@@ -288,9 +290,13 @@
+ mysql_client_register_plugin(MYSQL *mysql,
+                              struct st_mysql_client_plugin *plugin)
+ {
++  va_list unused;
++
+   if (is_not_initialized(mysql, plugin->name))
+     return NULL;
+ 
++  bzero(&unused, sizeof(unused)); /* suppress uninitialized-value warnings */
++
+   pthread_mutex_lock(&LOCK_load_client_plugin);
+ 
+   /* make sure the plugin wasn't loaded meanwhile */
+@@ -302,7 +308,7 @@
+     plugin= NULL;
+   }
+   else
+-    plugin= add_plugin(mysql, plugin, 0, 0, 0);
++    plugin= add_plugin(mysql, plugin, 0, 0, unused);
+ 
+   pthread_mutex_unlock(&LOCK_load_client_plugin);
+   return plugin;
diff --git a/mysql.spec b/mysql.spec
index ea9723f..cf4023f 100644
--- a/mysql.spec
+++ b/mysql.spec
@@ -1,6 +1,6 @@
 Name: mysql
 Version: 5.5.16
-Release: 2%{?dist}
+Release: 3%{?dist}
 # Update this whenever F15 gets rebased; it must be NVR-greater than F15 pkg.
 # Our convention for the life of F15 is that sysv packages will be numbered
 # 1dist.n while systemd packages will be 2dist and higher.
@@ -53,6 +53,7 @@ Patch10: mysql-plugin-bool.patch
 Patch11: mysql-s390-tsc.patch
 Patch12: mysql-openssl-test.patch
 Patch13: mysqld-nowatch.patch
+Patch14: mysql-va-list.patch
 
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root
 BuildRequires: perl, readline-devel, openssl-devel
@@ -203,6 +204,7 @@ the MySQL sources.
 %patch11 -p1
 %patch12 -p1
 %patch13 -p1
+%patch14 -p1
 
 # workaround for upstream bug #56342
 rm -f mysql-test/t/ssl_8k_key-master.opt
@@ -652,6 +654,10 @@ fi
 %{_mandir}/man1/mysql_client_test.1*
 
 %changelog
+* Sun Oct 16 2011 Tom Lane <tgl@redhat.com> 5.5.16-3
+- Fix unportable usage associated with va_list arguments
+Resolves: #744707
+
 * Sun Oct 16 2011 Tom Lane <tgl@redhat.com> 5.5.16-2
 - Update to MySQL 5.5.16, for various fixes described at
   http://dev.mysql.com/doc/refman/5.5/en/news-5-5-16.html