Make install directories customizable

CMakeLists.txt

@@ -23,6 +23,8 @@ elseif(CMAKE_BUILD_TYPE STREQUAL "Debug")
   set(CMAKE_MODULE_LINKER_FLAGS_DEBUG "-pg")
 endif()
 
+set(BINDIR  "games"             CACHE STRING "where to install game binary")
+set(DATADIR "share/games/flare" CACHE STRING "where to install game data")
 
 # Detect missing dependencies
 
@@ -130,17 +132,17 @@ EndIf (NOT SDLMAIN_LIBRARY)
 Target_Link_Libraries (flare ${SDL_LIBRARY} ${SDLMIXER_LIBRARY} ${SDLIMAGE_LIBRARY} ${SDLTTF_LIBRARY} ${SDLMAIN_LIBRARY})
 
 
-set(FLARE_EXECUTABLE_PATH ${CMAKE_INSTALL_PREFIX}/games/flare)
+set(FLARE_EXECUTABLE_PATH ${CMAKE_INSTALL_PREFIX}/${BINDIR}/flare)
 configure_file("${CMAKE_CURRENT_SOURCE_DIR}/distribution/flare.desktop.in" "${CMAKE_CURRENT_BINARY_DIR}/flare.desktop")
 
 
 # installing to the proper places
 install(PROGRAMS
   ${CMAKE_CURRENT_BINARY_DIR}/flare
-  DESTINATION ${CMAKE_INSTALL_PREFIX}/games)
+  DESTINATION ${CMAKE_INSTALL_PREFIX}/${BINDIR})
 install(DIRECTORY
   "${CMAKE_CURRENT_SOURCE_DIR}/mods"
-  DESTINATION ${CMAKE_INSTALL_PREFIX}/share/games/flare)
+  DESTINATION ${CMAKE_INSTALL_PREFIX}/${DATADIR})
 install(FILES
   "${CMAKE_CURRENT_BINARY_DIR}/flare.desktop"
   DESTINATION ${CMAKE_INSTALL_PREFIX}/share/applications)