mirror of
https://github.com/TerryCavanagh/VVVVVV.git
synced 2026-01-29 17:38:16 +03:00
02a45f9cbc
The previous implementation of showing the commit hash on the title screen used a preprocessor definition added at CMake time to pass the hash and date. This was passed for every file compiled, so if the date or hash changed, then every file would be recompiled. This is especially annoying if you're working on the game and switching branches all the time - the game has at least 50 source files to recompile! To fix this, we'll switch to using a generated file, named Version.h.out, that only gets included by the necessary files (which there is only one of - Render.cpp). It will be autogenerated by CMake (by using CONFIGURE_FILE(), which takes a templated file and does a find-and-replace on it, not unlike C macros), and since there's only one file that includes it, only one file will need to be recompiled when it changes. And also to prevent Version.h.out being a required file, it will only be included if necessary (i.e. OFFICIAL_BUILD is off). Since the C preprocessor can't ignore non-existing include files and will always error on them, I wrapped the #include in an #ifdef VERSION_H_EXISTS, and CMake will add the VERSION_H_OUT_EXISTS define when generating Version.h.out. The wrapper is named Version.h, so any file that #includes the commit hash and date should #include Version.h instead of Version.h.out. As an added bonus, I've also made it so CMake will print "This is interim commit [HASH] (committed [DATE])" at configure time if the game is going to be compiled with an interim commit hash. Now, there is also the issue that the commit hash change will only be noticed in the first place if CMake needs to be re-ran for anything, but that's a less severe issue than requiring recompilation of 50(!) or so files.
259 lines
7.3 KiB
CMake
259 lines
7.3 KiB
CMake
# CMake File for VVVVVV
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# Written by Ethan "flibitijibibo" Lee
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CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)
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# CMake Options
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OPTION(ENABLE_WARNINGS "Enable compilation warnings" ON)
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OPTION(ENABLE_WERROR "Treat compilation warnings as errors" OFF)
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SET(CUSTOM_LEVEL_SUPPORT ENABLED CACHE STRING "Optionally disable playing and/or editing of custom levels")
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SET_PROPERTY(CACHE CUSTOM_LEVEL_SUPPORT PROPERTY STRINGS ENABLED NO_EDITOR DISABLED)
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SET(STEAM OFF CACHE BOOL "Use the Steam API")
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SET(GOG OFF CACHE BOOL "Use the GOG API")
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SET(OFFICIAL_BUILD OFF CACHE BOOL "Compile an official build of the game")
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IF(OFFICIAL_BUILD)
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SET(STEAM ON)
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SET(GOG ON)
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ELSE()
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# Get interim commit and date of commit
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FIND_PACKAGE(Git)
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IF(GIT_FOUND)
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EXECUTE_PROCESS(
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COMMAND "${GIT_EXECUTABLE}" log -1 --format=%h
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OUTPUT_VARIABLE INTERIM_COMMIT
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ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE
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)
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EXECUTE_PROCESS(
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COMMAND "${GIT_EXECUTABLE}" log -1 --format=%cs
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OUTPUT_VARIABLE COMMIT_DATE
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ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE
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)
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MESSAGE(STATUS "This is interim commit ${INTERIM_COMMIT} (committed ${COMMIT_DATE})")
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# Take template file and replace the macros with what we have
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# Unfortunately the output is taken relative to binary path so we have to qualify it
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CONFIGURE_FILE(src/Version.h.in ${CMAKE_CURRENT_SOURCE_DIR}/src/Version.h.out)
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# This lets Version.h know that Version.h.out exists
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ADD_DEFINITIONS(-DVERSION_H_OUT_EXISTS)
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ENDIF()
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ENDIF()
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# Set standard to C++98/C++03
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SET(CMAKE_CXX_STANDARD 98)
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SET(CMAKE_CXX_EXTENSIONS OFF) # prevent mixing stdlib implementations (dangerous!)
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# Architecture Flags
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IF(APPLE)
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# Wow, Apple is a huge jerk these days huh?
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SET(OSX_10_9_SDK_PATH /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk)
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IF(NOT CMAKE_OSX_SYSROOT)
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IF(IS_DIRECTORY ${OSX_10_9_SDK_PATH})
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SET(CMAKE_OSX_SYSROOT ${OSX_10_9_SDK_PATH})
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ELSE()
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MESSAGE(WARNING "CMAKE_OSX_SYSROOT not set and macOS 10.9 SDK not found! Using default one.")
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ENDIF()
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ENDIF()
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SET(CMAKE_OSX_DEPLOYMENT_TARGET 10.9)
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LINK_DIRECTORIES(/usr/local/lib)
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ADD_COMPILE_OPTIONS(-Werror=partial-availability)
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ENDIF()
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PROJECT(VVVVVV)
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IF(APPLE)
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MESSAGE(STATUS "Using macOS SDK at ${CMAKE_OSX_SYSROOT}")
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ENDIF()
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# Compiler Flags
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ADD_DEFINITIONS(-DPHYSFS_SUPPORTS_DEFAULT=0 -DPHYSFS_SUPPORTS_ZIP=1)
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# RPATH
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IF(NOT WIN32)
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IF(APPLE)
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SET(BIN_LIBROOT "osx")
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SET(BIN_RPATH "@executable_path/osx")
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ELSEIF(CMAKE_SIZEOF_VOID_P MATCHES "8")
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SET(BIN_LIBROOT "lib64")
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SET(BIN_RPATH "\$ORIGIN/lib64")
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ELSE()
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SET(BIN_LIBROOT "lib")
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SET(BIN_RPATH "\$ORIGIN/lib")
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ENDIF()
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SET(CMAKE_SKIP_BUILD_RPATH TRUE)
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SET(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
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SET(CMAKE_INSTALL_RPATH ${BIN_RPATH})
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SET(CMAKE_INSTALL_RPATH_USE_LINK_PATH FALSE)
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ENDIF()
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# Include Directories
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INCLUDE_DIRECTORIES(
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src
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../third_party/tinyxml2
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../third_party/physfs
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../third_party/lodepng
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../third_party/utfcpp/source
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)
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# Source Lists
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SET(VVV_SRC
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src/BinaryBlob.cpp
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src/BlockV.cpp
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src/Ent.cpp
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src/Entity.cpp
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src/FileSystemUtils.cpp
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src/Finalclass.cpp
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src/Game.cpp
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src/Graphics.cpp
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src/GraphicsResources.cpp
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src/GraphicsUtil.cpp
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src/Input.cpp
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src/KeyPoll.cpp
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src/Labclass.cpp
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src/Logic.cpp
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src/Map.cpp
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src/Music.cpp
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src/Otherlevel.cpp
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src/preloader.cpp
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src/Render.cpp
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src/RenderFixed.cpp
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src/Screen.cpp
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src/Script.cpp
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src/Scripts.cpp
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src/SoundSystem.cpp
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src/Spacestation2.cpp
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src/TerminalScripts.cpp
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src/Textbox.cpp
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src/Tower.cpp
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src/UtilityClass.cpp
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src/WarpClass.cpp
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src/XMLUtils.cpp
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src/main.cpp
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src/Network.c
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)
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IF(NOT CUSTOM_LEVEL_SUPPORT STREQUAL "DISABLED")
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LIST(APPEND VVV_SRC src/editor.cpp)
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ENDIF()
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IF(STEAM)
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LIST(APPEND VVV_SRC src/SteamNetwork.c)
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ADD_DEFINITIONS(-DSTEAM_NETWORK)
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ENDIF()
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IF(GOG)
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LIST(APPEND VVV_SRC src/GOGNetwork.c)
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ADD_DEFINITIONS(-DGOG_NETWORK)
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ENDIF()
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SET(XML2_SRC
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../third_party/tinyxml2/tinyxml2.cpp
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)
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SET(PFS_SRC
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../third_party/physfs/physfs.c
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../third_party/physfs/physfs_archiver_dir.c
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../third_party/physfs/physfs_archiver_unpacked.c
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../third_party/physfs/physfs_archiver_zip.c
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../third_party/physfs/physfs_byteorder.c
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../third_party/physfs/physfs_unicode.c
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../third_party/physfs/physfs_platform_posix.c
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../third_party/physfs/physfs_platform_unix.c
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../third_party/physfs/physfs_platform_windows.c
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../third_party/physfs/physfs_platform_haiku.cpp
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)
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IF(APPLE)
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# Are you noticing a pattern with this Apple crap yet?
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SET(PFS_SRC ${PFS_SRC} ../third_party/physfs/physfs_platform_apple.m)
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ENDIF()
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SET(PNG_SRC ../third_party/lodepng/lodepng.c)
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# Executable information
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IF(WIN32)
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ADD_EXECUTABLE(VVVVVV WIN32 ${VVV_SRC})
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ELSE()
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ADD_EXECUTABLE(VVVVVV ${VVV_SRC})
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ENDIF()
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# Build options
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IF(ENABLE_WARNINGS)
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# The weird syntax is due to CMake generator expressions.
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# Saves quite a few lines and boilerplate at the price of readability.
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TARGET_COMPILE_OPTIONS(VVVVVV PRIVATE
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$<$<OR:$<CXX_COMPILER_ID:GNU>,$<CXX_COMPILER_ID:Clang>,$<CXX_COMPILER_ID:AppleClang>>:
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-Wall $<$<BOOL:${ENABLE_WERROR}>:-Werror>>
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$<$<CXX_COMPILER_ID:MSVC>:
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/W4 $<$<BOOL:${ENABLE_WERROR}>:/WX>>)
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ENDIF()
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IF(CUSTOM_LEVEL_SUPPORT STREQUAL "NO_EDITOR")
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ADD_DEFINITIONS(-DNO_EDITOR)
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ELSEIF(CUSTOM_LEVEL_SUPPORT STREQUAL "DISABLED")
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ADD_DEFINITIONS(-DNO_CUSTOM_LEVELS -DNO_EDITOR)
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ENDIF()
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IF(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
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SET(SUPPORTS_IMPLICIT_FALLTHROUGH 1)
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ELSEIF(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
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IF(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 7.0)
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SET(SUPPORTS_IMPLICIT_FALLTHROUGH 1)
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ELSE()
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SET(SUPPORTS_IMPLICIT_FALLTHROUGH 0)
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ENDIF()
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ELSE()
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SET(SUPPORTS_IMPLICIT_FALLTHROUGH 0)
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ENDIF()
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IF(SUPPORTS_IMPLICIT_FALLTHROUGH)
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TARGET_COMPILE_OPTIONS(VVVVVV PRIVATE -Werror=implicit-fallthrough)
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ENDIF()
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SET_PROPERTY(TARGET VVVVVV PROPERTY CXX_STANDARD 98)
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SET_PROPERTY(TARGET VVVVVV PROPERTY CXX_EXTENSIONS FALSE)
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# Library information
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ADD_LIBRARY(tinyxml2-static STATIC ${XML2_SRC})
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ADD_LIBRARY(physfs-static STATIC ${PFS_SRC} ${PFSP_SRC})
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ADD_LIBRARY(lodepng-static STATIC ${PNG_SRC})
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# Static Dependencies
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TARGET_LINK_LIBRARIES(VVVVVV physfs-static tinyxml2-static lodepng-static)
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# SDL2 Dependency (Detection pulled from FAudio)
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if (DEFINED SDL2_INCLUDE_DIRS AND DEFINED SDL2_LIBRARIES)
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message(STATUS "Using pre-defined SDL2 variables SDL2_INCLUDE_DIRS and SDL2_LIBRARIES")
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target_include_directories(VVVVVV SYSTEM PUBLIC "$<BUILD_INTERFACE:${SDL2_INCLUDE_DIRS}>")
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target_link_libraries(VVVVVV ${SDL2_LIBRARIES})
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else()
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# Only try to autodetect if both SDL2 variables aren't explicitly set
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find_package(SDL2 CONFIG)
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if (TARGET SDL2::SDL2)
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message(STATUS "Using TARGET SDL2::SDL2")
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target_link_libraries(VVVVVV SDL2::SDL2 SDL2_mixer)
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elseif (TARGET SDL2)
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message(STATUS "Using TARGET SDL2")
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target_link_libraries(VVVVVV SDL2 SDL2_mixer)
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else()
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message(STATUS "No TARGET SDL2::SDL2, or SDL2, using variables")
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find_path(SDL2_MIXER_INCLUDE_DIRS NAMES SDL_mixer.h PATH_SUFFIXES SDL2)
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target_include_directories(VVVVVV SYSTEM PUBLIC "$<BUILD_INTERFACE:${SDL2_INCLUDE_DIRS}>" ${SDL2_MIXER_INCLUDE_DIRS})
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target_link_libraries(VVVVVV ${SDL2_LIBRARIES} SDL2_mixer)
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endif()
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endif()
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# Yes, more Apple Crap
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IF(APPLE)
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FIND_LIBRARY(FOUNDATION NAMES Foundation)
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FIND_LIBRARY(IOKIT NAMES IOKit)
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TARGET_LINK_LIBRARIES(VVVVVV objc ${IOKIT} ${FOUNDATION})
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ENDIF()
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# But hey, also some Haiku crap
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IF(HAIKU)
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FIND_LIBRARY(BE_LIBRARY be)
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FIND_LIBRARY(ROOT_LIBRARY root)
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TARGET_LINK_LIBRARIES(VVVVVV ${BE_LIBRARY} ${ROOT_LIBRARY})
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ENDIF()
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