This limits the intrusion on application namespace.
-diff -Naur mysql-5.5.8.orig/include/errmsg.h mysql-5.5.8/include/errmsg.h
---- mysql-5.5.8.orig/include/errmsg.h 2010-12-03 12:58:24.000000000 -0500
-+++ mysql-5.5.8/include/errmsg.h 2010-12-27 14:29:59.184552374 -0500
-@@ -24,6 +24,7 @@
- #endif
- void init_client_errs(void);
- void finish_client_errs(void);
-+#define client_errors mysql_client_errors /* namespace sanity */
- extern const char *client_errors[]; /* Error messages */
- #ifdef __cplusplus
- }
diff -Naur mysql-5.5.8.orig/include/my_sys.h mysql-5.5.8/include/my_sys.h
--- mysql-5.5.8.orig/include/my_sys.h 2010-12-03 12:58:24.000000000 -0500
+++ mysql-5.5.8/include/my_sys.h 2010-12-27 14:27:23.956926896 -0500
diff -Naur mysql-5.5.8.orig/include/mysql.h.pp mysql-5.5.8/include/mysql.h.pp
--- mysql-5.5.8.orig/include/mysql.h.pp 2010-12-03 12:58:24.000000000 -0500
+++ mysql-5.5.8/include/mysql.h.pp 2010-12-27 14:27:23.956926896 -0500
-@@ -86,7 +86,7 @@
+@@ -90,7 +90,7 @@
void my_net_local_init(NET *net);
void net_end(NET *net);
- void net_clear(NET *net, my_bool clear_buffer);
+ void net_clear(NET *net, my_bool check_buffer);
-my_bool net_realloc(NET *net, size_t length);
+my_bool mysql_net_realloc(NET *net, size_t length);
my_bool net_flush(NET *net);
diff -Naur mysql-5.5.8.orig/include/mysql_com.h mysql-5.5.8/include/mysql_com.h
--- mysql-5.5.8.orig/include/mysql_com.h 2010-12-03 12:58:24.000000000 -0500
+++ mysql-5.5.8/include/mysql_com.h 2010-12-27 14:27:23.957927198 -0500
-@@ -448,6 +448,7 @@
- void my_net_local_init(NET *net);
- void net_end(NET *net);
- void net_clear(NET *net, my_bool clear_buffer);
-+#define net_realloc mysql_net_realloc /* namespace sanity */
+@@ -497,6 +497,7 @@
+ void my_net_local_init(NET *net);
+ void net_end(NET *net);
+ void net_clear(NET *net, my_bool check_buffer);
++#define net_realloc mysql_net_realloc /* namespace sanity */
my_bool net_realloc(NET *net, size_t length);
my_bool net_flush(NET *net);
my_bool my_net_write(NET *net,const unsigned char *packet, size_t len);
+--- mysql-5.5.9/include/m_string.h~ 2011-01-20 00:37:08.000000000 +0200
++++ mysql-5.5.9/include/m_string.h 2011-03-31 16:36:35.184588054 +0300
+@@ -118,6 +118,7 @@
+ extern size_t strnlen(const char *s, size_t n);
+ #endif
+
++#define is_prefix mysql_is_prefix /* namespace sanity */
+ extern int is_prefix(const char *, const char *);
+
+ /* Conversion routines */