Portability fixes

include/config-win.h:
  Removed wrong ;
include/my_global.h:
  Portability fix for AIX

include/config-win.h

@@ -324,4 +324,4 @@ inline double ulonglong2double(ulonglong value)
 #define statistic_increment(V,L) thread_safe_increment((V),(L))
 
 #define shared_memory_buffer_length 16000
-#define default_shared_memory_base_name "MYSQL";
+#define default_shared_memory_base_name "MYSQL"

include/my_global.h

@@ -117,7 +117,7 @@
   do the following:
  */
 #if !defined(_XOPEN_SOURCE_EXTENDED) && ! defined(__cplusplus)
-#define _XOPEN_SOURCE_EXTENDED
+#define _XOPEN_SOURCE_EXTENDED 1
 #endif
 
 /* Fix type of socklen as this is depending on the above define */