test fix appveyor. Part 24

Author: q4a

CMakeLists.txt

@@ -4,7 +4,9 @@ project(OpenXRay)
 set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)
 
 IF(MINGW)
-SET(CMAKE_BUILD_TOOL mingw32-make)
+SET(CMAKE_MAKE_PROGRAM mingw32-make)
+SET(CMAKE_C_COMPILER gcc)
+SET(CMAKE_CXX_COMPILER g++)
 ENDIF(MINGW)
 
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fpermissive --std=c++17")