Include local directories before everything else

This fixes build failures because of picking up system includes
instead of similarily named local ones

Author: AMDmi3

CMakeLists.txt

@@ -171,7 +171,7 @@ endif()
 
 configure_file("${PROJECT_SOURCE_DIR}/OpenSpades.h.in" "${PROJECT_BINARY_DIR}/OpenSpades.h")
 configure_file("${PROJECT_SOURCE_DIR}/OpenSpades.rc.in" "${PROJECT_BINARY_DIR}/OpenSpades.rc")
-include_directories("${PROJECT_BINARY_DIR}")
+include_directories(BEFORE "${PROJECT_BINARY_DIR}")
 include_directories("${SDL2_INCLUDE_DIR}")
 include_directories("${SDL2_IMAGE_INCLUDE_DIR}")
 if(OPENGL_INCLUDE_DIR)

Sources/CMakeLists.txt

@@ -24,9 +24,9 @@ add_subdirectory(AngelScript/projects/cmake)
 add_subdirectory(AngelScript/projects/cmake_addons)
 set(ANGELSCRIPT_LIBS Angelscript Angelscript_addons)
 
-include_directories(".")
-include_directories("json/include")
-include_directories("ENet/include")
+include_directories(BEFORE ".")
+include_directories(BEFORE "json/include")
+include_directories(BEFORE "ENet/include")
 
 if(WIN32)
 	if(MINGW)	# = gcc, can someone confirm that this works?