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 */