diff -Naru mysql-5.1.44-bak/include/mysql.h mysql-5.1.44/include/mysql.h
--- mysql-5.1.44-bak/include/mysql.h	2010-02-23 00:31:19.000000000 +0100
+++ mysql-5.1.44/include/mysql.h	2010-02-23 10:51:49.000000000 +0100
@@ -44,7 +44,9 @@
 #endif
 
 #ifndef _global_h				/* If not standard header */
-#include <sys/types.h>
+#ifndef _abi_test_
+#include <sys/types.h>
+#endif
 #ifdef __LCC__
 #include <winsock2.h>				/* For windows */
 #endif
diff -Naru mysql-5.1.44-bak/include/mysql.h.pp mysql-5.1.44/include/mysql.h.pp
--- mysql-5.1.44-bak/include/mysql.h.pp	2010-02-23 00:31:19.000000000 +0100
+++ mysql-5.1.44/include/mysql.h.pp	2010-02-23 10:54:46.000000000 +0100
@@ -1,4 +1,3 @@
-#include <sys/types.h>
 typedef char my_bool;
 typedef int my_socket;
 #include "mysql_version.h"
diff -Naru mysql-5.1.44-bak/Makefile.am mysql-5.1.44/Makefile.am
--- mysql-5.1.44-bak/Makefile.am	2010-02-23 00:31:18.000000000 +0100
+++ mysql-5.1.44/Makefile.am	2010-02-23 10:50:18.000000000 +0100
@@ -321,7 +321,8 @@
 	                  -I$(top_builddir)/include \
 	                  -I$(top_builddir)/include/mysql \
 	                  -I$(top_builddir)/sql \
-	                                 $$file 2>/dev/null | \
+ 	                  -D_abi_test_ \
+	                                 $$file | \
 	                  @SED@ -e '/^# /d' \
 	                            -e '/^[ 	]*$$/d' \
 	                            -e '/^#pragma GCC set_debug_pwd/d' \