contribs: fixed glib patch for Darwin 64bit compilation

extras/contrib/src/Patches/glib-Darwin64.patch

 --- glib/gconvert.c	2009-06-27 05:18:06.000000000 +0200
-+++ glib/gconvert.c	2009-07-18 02:09:30.000000000 +0200
-@@ -51,9 +51,6 @@
- #if defined(USE_LIBICONV_GNU) && !defined (_LIBICONV_H)
- #error GNU libiconv in use but included iconv.h not from libiconv
- #endif
++++ glib/gconvert.c	2009-08-31 02:11:23.000000000 +0200
+@@ -48,13 +48,6 @@
+ 
+ #include "glibintl.h"
+ 
+-#if defined(USE_LIBICONV_GNU) && !defined (_LIBICONV_H)
+-#error GNU libiconv in use but included iconv.h not from libiconv
+-#endif
 -#if !defined(USE_LIBICONV_GNU) && defined (_LIBICONV_H)
 -#error GNU libiconv not in use but included iconv.h is from libiconv
 -#endif
- 
+-
  #include "galias.h"
  
+ GQuark