made cmakescript working on Windows

CMakeLists.txt

@@ -8,13 +8,26 @@ project(gdw_ss15_cpp)
 
 find_package(OpenGL)
 
-include(FindPkgConfig)
-PKG_SEARCH_MODULE(SDL2 REQUIRED sdl2)
-PKG_SEARCH_MODULE(SDL2MIXER REQUIRED SDL2_mixer)
-include_directories(
-	${SDL2_INCLUDE_DIRS}
-	${SDL2_mixer_INCLUDE_DIRS}
-)
+if(UNIX)
+	include(FindPkgConfig)
+	PKG_SEARCH_MODULE(SDL2 REQUIRED sdl2)
+	PKG_SEARCH_MODULE(SDL2MIXER REQUIRED SDL2_mixer)
+	include_directories(
+		${SDL2_INCLUDE_DIRS}
+		${SDL2_mixer_INCLUDE_DIRS}
+	)
+elseif(WIN32)
+	include_directories(
+		${CMAKE_CURRENT_SOURCE_DIR}/lib/sdl2/include
+		${CMAKE_CURRENT_SOURCE_DIR}/lib/sdl2_mixer/x86_64-w64-mingw32/include/SDL2
+	)
+	link_directories(
+		${CMAKE_CURRENT_SOURCE_DIR}/lib/sdl2/x86_64-w64-mingw32/lib
+		${CMAKE_CURRENT_SOURCE_DIR}/lib/sdl2_mixer/x86_64-w64-mingw32/lib
+	)
+	file(COPY ${CMAKE_CURRENT_SOURCE_DIR}/lib/sdl2/x86_64-w64-mingw32/bin/SDL2.dll DESTINATION .)
+	file(COPY ${CMAKE_CURRENT_SOURCE_DIR}/lib/sdl2_mixer/x86_64-w64-mingw32/bin/ DESTINATION . FILES_MATCHING PATTERN *.dll)
+endif()
 
 
 #gli library
@@ -151,14 +164,28 @@ set(LINKED_LIBRARIES
 	DetourCrowd
 	Detour
 	Recast
-	SDL2
-	SDL2main
+		SDL2main
+		SDL2
 	SDL2_mixer
-	GL
-	c++
-	c++abi
 )
 
+if(UNIX)
+	set( LINKED_LIBRARIES
+			${LINKED_LIBRARIES}
+			GL
+			c++
+			c++abi)
+elseif(WIN32)
+	set( LINKED_LIBRARIES
+		imagehlp
+		mingw32
+		${LINKED_LIBRARIES}
+		opengl32
+		-static-libgcc
+		-static-libstdc++)
+endif()
+
+
 #build executable and then link to the libraries
 add_executable(Game ${project_SRC} ${project_HDR} ${project_INL})
 target_link_libraries(Game ${LINKED_LIBRARIES})