Add option to turn off switching into executable dir on startup

CMakeLists.txt

@@ -5,6 +5,7 @@ Project(mkxp)
 
 option(RGSS2 "Enable RGSS2" OFF)
 option(MIDI "Enable midi support" ON)
+option(WORKDIR_CURRENT "Keep current directory on startup" OFF)
 option(FORCE32 "Force 32bit compile on 64bit OS" OFF)
 set(BINDING "MRI" CACHE STRING "The Binding Type (MRI, MRUBY, NULL)")
 set(EXTERNAL_LIB_PATH "" CACHE PATH "External precompiled lib prefix")
@@ -19,6 +20,12 @@ IF("${CMAKE_SYSTEM}" MATCHES "Linux")
 	SET(LINUX ON)
 ENDIF()
 
+IF(WORKDIR_CURRENT)
+	list(APPEND DEFINES
+		WORKDIR_CURRENT
+	)
+ENDIF()
+
 IF(FORCE32)
 	if(APPLE)
 		SET(CMAKE_OSX_ARCHITECTURES "i386")