From 750ed5b8da910785755c3e4280568498c8084d17 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Mon, 7 Jan 2013 12:14:33 +0100
Subject: [PATCH] wxHaskell: patch wxc to fix build error

---
 .../wxHaskell/fix-bogus-pointer-assignment.patch    | 13 +++++++++++++
 .../development/libraries/haskell/wxHaskell/wxc.nix |  2 +-
 2 files changed, 14 insertions(+), 1 deletion(-)
 create mode 100644 pkgs/development/libraries/haskell/wxHaskell/fix-bogus-pointer-assignment.patch

diff --git a/pkgs/development/libraries/haskell/wxHaskell/fix-bogus-pointer-assignment.patch b/pkgs/development/libraries/haskell/wxHaskell/fix-bogus-pointer-assignment.patch
new file mode 100644
index 00000000000..38551d24d43
--- /dev/null
+++ b/pkgs/development/libraries/haskell/wxHaskell/fix-bogus-pointer-assignment.patch
@@ -0,0 +1,13 @@
+diff -ubr wxc-0.90.0.4-orig/src/cpp/eljpen.cpp wxc-0.90.0.4/src/cpp/eljpen.cpp
+--- wxc-0.90.0.4-orig/src/cpp/eljpen.cpp	2012-07-03 12:12:17.000000000 +0200
++++ wxc-0.90.0.4/src/cpp/eljpen.cpp	2013-01-07 12:09:50.296417007 +0100
+@@ -156,7 +156,7 @@
+ EWXWEXPORT(void,wxPen_GetStipple)(void* self,wxBitmap* _ref)
+ {
+ #if defined(__WXGTK__)
+-    *_ref = NULL;
++    _ref = NULL;
+ #else
+     *_ref = *(((wxPen*)self)->GetStipple());
+ #endif
+Only in wxc-0.90.0.4/src/cpp: eljpen.cpp.orig
diff --git a/pkgs/development/libraries/haskell/wxHaskell/wxc.nix b/pkgs/development/libraries/haskell/wxHaskell/wxc.nix
index f439b9e1594..74ca4f91d70 100644
--- a/pkgs/development/libraries/haskell/wxHaskell/wxc.nix
+++ b/pkgs/development/libraries/haskell/wxHaskell/wxc.nix
@@ -10,7 +10,7 @@ cabal.mkDerivation (self: {
   postInstall = ''
     cp -v dist/build/libwxc.so.${self.version} $out/lib/libwxc.so
   '';
-
+  patches = [ ./fix-bogus-pointer-assignment.patch ];
   meta = {
     homepage = "http://haskell.org/haskellwiki/WxHaskell";
     description = "wxHaskell C++ wrapper";