Contribs: don't allow pthread to use config.h

extras/contrib/src/Patches/pthread-config-h.patch

+--- pthreads/pthread.h	2006-01-24 14:59:57.000000000 +0100
++++ pthreads.old/pthread.h	2011-05-08 13:00:21.382759343 +0200
+@@ -210,10 +210,6 @@
+  * -----------------
+  */
+ 
+-#if HAVE_CONFIG_H
+-#include "config.h"
+-#endif /* HAVE_CONFIG_H */
+-
+ #ifndef NEED_FTIME
+ #include <time.h>
+ #else /* NEED_FTIME */

extras/contrib/src/contrib-src.mak

@@ -2297,6 +2297,7 @@ pthreads-w32-$(PTHREADS_VERSION)-release.tar.gz:
 pthreads: pthreads-w32-$(PTHREADS_VERSION)-release.tar.gz
 	$(EXTRACT_GZ)
 	(cd $@; patch -p0 < ../Patches/pthreads-detach.patch)
+	patch -p0 < Patches/pthread-config-h.patch
 	sed -i 's/^CROSS.*=/CROSS ?=/' $@/GNUmakefile
 ifdef HAVE_WIN64
 	(patch -p0 < Patches/pthreads-win64.patch)