diff --git a/pkgs/development/libraries/qt-4.x/4.8/default.nix b/pkgs/development/libraries/qt-4.x/4.8/default.nix
index f56886259a6..59761e5cf1d 100644
--- a/pkgs/development/libraries/qt-4.x/4.8/default.nix
+++ b/pkgs/development/libraries/qt-4.x/4.8/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
     sha256 = "0y93vkkn44md37gyg4y8sc9ylk27xkniaimfcpdcwd090qnjl6wj";
   };
 
-  patches = [ ( substituteAll {
+  patches = [ ./glib-2.32.patch ( substituteAll {
         src = ./dlopen-absolute-paths.diff;
         inherit cups icu libXfixes;
         glibc = stdenv.gcc.libc;
diff --git a/pkgs/development/libraries/qt-4.x/4.8/glib-2.32.patch b/pkgs/development/libraries/qt-4.x/4.8/glib-2.32.patch
new file mode 100644
index 00000000000..f92d3430514
--- /dev/null
+++ b/pkgs/development/libraries/qt-4.x/4.8/glib-2.32.patch
@@ -0,0 +1,24 @@
+diff -Naur qt-everywhere-opensource-src-4.8.2-orig/src/3rdparty/javascriptcore/JavaScriptCore/wtf/Threading.h qt-everywhere-opensource-src-4.8.2/src/3rdparty/javascriptcore/JavaScriptCore/wtf/Threading.h
+--- qt-everywhere-opensource-src-4.8.2-orig/src/3rdparty/javascriptcore/JavaScriptCore/wtf/Threading.h	2012-04-26 15:46:22.000000000 -0400
++++ qt-everywhere-opensource-src-4.8.2/src/3rdparty/javascriptcore/JavaScriptCore/wtf/Threading.h	2012-07-14 22:47:02.145152876 -0400
+@@ -89,7 +89,7 @@
+ #include <pthread.h>
+ #elif PLATFORM(GTK)
+ #include <wtf/gtk/GOwnPtr.h>
+-typedef struct _GMutex GMutex;
++typedef union _GMutex GMutex;
+ typedef struct _GCond GCond;
+ #endif
+ 
+diff -Naur qt-everywhere-opensource-src-4.8.2-orig/src/3rdparty/webkit/Source/JavaScriptCore/wtf/gobject/GTypedefs.h qt-everywhere-opensource-src-4.8.2/src/3rdparty/webkit/Source/JavaScriptCore/wtf/gobject/GTypedefs.h
+--- qt-everywhere-opensource-src-4.8.2-orig/src/3rdparty/webkit/Source/JavaScriptCore/wtf/gobject/GTypedefs.h	2012-04-26 15:46:14.000000000 -0400
++++ qt-everywhere-opensource-src-4.8.2/src/3rdparty/webkit/Source/JavaScriptCore/wtf/gobject/GTypedefs.h	2012-07-14 22:46:24.671138454 -0400
+@@ -52,7 +52,7 @@
+ typedef struct _GHashTable GHashTable;
+ typedef struct _GInputStream GInputStream;
+ typedef struct _GList GList;
+-typedef struct _GMutex GMutex;
++typedef union _GMutex GMutex;
+ typedef struct _GPatternSpec GPatternSpec;
+ typedef struct _GPollableOutputStream GPollableOutputStream;
+ typedef struct _GSocketClient GSocketClient;