BUG: Use the extra definicions

Modules/CheckCSourceCompiles.cmake

@@ -36,7 +36,7 @@ MACRO(CHECK_C_SOURCE_COMPILES SOURCE VAR)
       ${CMAKE_BINARY_DIR}
       ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/src.c
       COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
-      CMAKE_FLAGS 
+      CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_FUNCTION_DEFINITIONS}
       "${CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES}"
       "${CHECK_C_SOURCE_COMPILES_ADD_INCLUDES}"
       OUTPUT_VARIABLE OUTPUT)

Modules/CheckCXXSourceCompiles.cmake

@@ -36,7 +36,7 @@ MACRO(CHECK_CXX_SOURCE_COMPILES SOURCE VAR)
       ${CMAKE_BINARY_DIR}
       ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/src.cxx
       COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
-      CMAKE_FLAGS 
+      CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_FUNCTION_DEFINITIONS}
       "${CHECK_CXX_SOURCE_COMPILES_ADD_LIBRARIES}"
       "${CHECK_CXX_SOURCE_COMPILES_ADD_INCLUDES}"
       OUTPUT_VARIABLE OUTPUT)