From 394f7ea4332d720d4c39548e1ffc7e4a01769340 Mon Sep 17 00:00:00 2001
From: Tobias Doerffel <tobias.doerffel@gmail.com>
Date: Thu, 23 Dec 2010 21:55:26 +0100
Subject: [PATCH] Win64Toolchain: added 32 bit compiler configuration

It might be desirable to compile single modules with a 32 bit compiler.
Added according CMake variables so they can be used easily.
---
 cmake/modules/MinGWCrossCompile.cmake | 7 +++++++
 cmake/modules/Win64Toolchain.cmake    | 2 ++
 2 files changed, 9 insertions(+)

diff --git a/cmake/modules/MinGWCrossCompile.cmake b/cmake/modules/MinGWCrossCompile.cmake
index bdc8bf33d..57d7e6909 100644
--- a/cmake/modules/MinGWCrossCompile.cmake
+++ b/cmake/modules/MinGWCrossCompile.cmake
@@ -13,6 +13,13 @@ SET(MINGW_TOOL_PREFIX		${MINGW_PREFIX}/bin/${CMAKE_SYSTEM_PROCESSOR}-w64-mingw32
 SET(CMAKE_C_COMPILER		${MINGW_TOOL_PREFIX}gcc)
 SET(CMAKE_CXX_COMPILER		${MINGW_TOOL_PREFIX}g++)
 
+IF(WIN64)
+# specify the cross compiler
+SET(MINGW_TOOL_PREFIX32		${MINGW_PREFIX32}/bin/${CMAKE_SYSTEM_PROCESSOR32}-w64-mingw32-)
+SET(CMAKE_C_COMPILER32		${MINGW_TOOL_PREFIX32}gcc)
+SET(CMAKE_CXX_COMPILER32	${MINGW_TOOL_PREFIX32}g++)
+ENDIF()
+
 # specify location of some tools
 SET(STRIP					${MINGW_TOOL_PREFIX}strip)
 SET(WINDRES					${MINGW_TOOL_PREFIX}windres)
diff --git a/cmake/modules/Win64Toolchain.cmake b/cmake/modules/Win64Toolchain.cmake
index 306bb6a4b..09c0c35ef 100644
--- a/cmake/modules/Win64Toolchain.cmake
+++ b/cmake/modules/Win64Toolchain.cmake
@@ -1,6 +1,8 @@
 SET(MINGW_PREFIX /opt/mingw64)
+SET(MINGW_PREFIX32 /opt/mingw32)
 
 SET(CMAKE_SYSTEM_PROCESSOR x86_64)
+SET(CMAKE_SYSTEM_PROCESSOR32 i686)
 
 SET(WIN64 TRUE)