CMakeLists modification for set the 32bit compialtion

Change-Id: Iddcdfd4954a55ecae1c84ae6e67741eb9fea5d88

CMakeLists.txt

 cmake_minimum_required (VERSION 2.6)
 project (chaos)
 
+SET( ${PROJECT_NAME}_MAJOR_VERSION 0 ) 
+SET( ${PROJECT_NAME}_MINOR_VERSION 1 ) 
+SET( ${PROJECT_NAME}_PATCH_LEVEL 0 )
+
+OPTION( BUILD_FORCE_32 "Force 32 bit compilation" OFF )
 
 EXECUTE_PROCESS(COMMAND chaos/common/version.sh)
 
 INCLUDE_DIRECTORIES(.) 
 ADD_DEFINITIONS(-g -O2 -Wall)
     
+IF( BUILD_FORCE_32 ) 
+    MESSAGE( STATUS "Forcing 32 bit compilation" )
+    set (CMAKE_C_FLAGS "-m32 -march=i686")
+    set (CMAKE_CXX_FLAGS "-m32 -march=i686")
+    set (CMAKE_LINK_FLAGS "-m32 -march=i686")
+ENDIF()
+
 ADD_SUBDIRECTORY(chaos/common bin_common)
 ADD_SUBDIRECTORY(chaos/cu_toolkit bin_cutoolkit)
 ADD_SUBDIRECTORY(chaos/ui_toolkit bin_uitoolkit)