issue warning when WITH_RAYOPTIMIZATION is used with MinGW-w32, since this is known...

[blender.git] / CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 369e7f5b03b85e55002039ae9e4d836795aad665..86848d10422a1ad6b75d0416417c1104a47864b2 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -931,20 +931,26 @@ elseif(WIN32)
        #  include(${CMAKE_ROOT}/Modules/Platform/Windows-cl.cmake)
 
        if(CMAKE_COMPILER_IS_GNUCC)
-               set(LIBDIR ${CMAKE_SOURCE_DIR}/../lib/mingw32)
                include(CheckCSourceCompiles)
                # Setup 64bit and 64bit windows systems
                CHECK_C_SOURCE_COMPILES("
                        #ifndef __MINGW64__
                        #error
                        #endif
-                       main(){}
+                       int main(void) { return 0; }
                        " 
                        WITH_MINGW64)
                
                if(WITH_MINGW64)
                        message(STATUS "Compiling for 64 bit with MinGW-w64.")
                        set(LIBDIR ${CMAKE_SOURCE_DIR}/../lib/mingw64)
+               else()
+                       message(STATUS "Compiling for 32 bit with MinGW-w32.")
+                       set(LIBDIR ${CMAKE_SOURCE_DIR}/../lib/mingw32)
+                       
+                       if(WITH_RAYOPTIMIZATION)
+                               message(WARNING "MinGW-w32 is known to be unstable with 'WITH_RAYOPTIMIZATION' option enabled.")
+                       endif()
                endif()
        else()
                # Setup 64bit and 64bit windows systems