Bug#52514: mysql 5.1 do_abi_check does not compile w/ gcc4.5

           due to GCC preprocessor change

Addendum for trunk: do not include system header when checking
the ABI.

include/mysql/plugin.h.pp

 #include <mysql/services.h>
 #include <mysql/service_my_snprintf.h>
-#include <stdarg.h>
-#include <stdlib.h>
 extern struct my_snprintf_service_st {
   size_t (*my_snprintf_type)(char*, size_t, const char*, ...);
   size_t (*my_vsnprintf_type)(char *, size_t, const char*, va_list);
@@ -9,7 +7,6 @@ extern struct my_snprintf_service_st {
 size_t my_snprintf(char* to, size_t n, const char* fmt, ...);
 size_t my_vsnprintf(char *to, size_t n, const char* fmt, va_list ap);
 #include <mysql/service_thd_alloc.h>
-#include <stdlib.h>
 struct st_mysql_lex_string
 {
   char *str;

include/mysql/service_my_snprintf.h

@@ -70,8 +70,11 @@
 extern "C" {
 #endif
 
+#ifndef MYSQL_ABI_CHECK
 #include <stdarg.h>
 #include <stdlib.h>
+#endif
+
 extern struct my_snprintf_service_st {
   size_t (*my_snprintf_type)(char*, size_t, const char*, ...);
   size_t (*my_vsnprintf_type)(char *, size_t, const char*, va_list);

include/mysql/service_thd_alloc.h

@@ -27,7 +27,9 @@
   allocations - they are better served with my_malloc.
 */
 
+#ifndef MYSQL_ABI_CHECK
 #include <stdlib.h>
+#endif
 
 #ifdef __cplusplus
 extern "C" {