hedgewars/CMakeLists.txt
author koda
Wed, 19 Dec 2012 18:17:23 +0100 (2012-12-19)
changeset 8312 9e8781faabab
parent 8311 bc18481dca8b
child 8314 7faceaca67d4
permissions -rw-r--r--
can compile engine as library on linux but not run the executable (automatically), most likely breaking other platforms (wrt engine-as-library)
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find_package(SDL)
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find_package(SDL_image)
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find_package(SDL_net)
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find_package(SDL_ttf)
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find_package(SDL_mixer)
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include(${CMAKE_SOURCE_DIR}/cmake_modules/FindSDL_Extras.cmake)
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configure_file(${hedgewars_SOURCE_DIR}/hedgewars/config.inc.in ${CMAKE_CURRENT_BINARY_DIR}/config.inc)
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#SOURCE AND PROGRAMS SECTION
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if(${BUILD_ENGINE_LIBRARY})
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    set(engine_output_name "${CMAKE_SHARED_LIBRARY_PREFIX}hwLibrary${CMAKE_SHARED_LIBRARY_SUFFIX}")
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    set(hwengine_project ${hedgewars_SOURCE_DIR}/hedgewars/hwLibrary.pas)
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else()
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    set(engine_output_name "hwengine${CMAKE_EXECUTABLE_SUFFIX}")
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    set(hwengine_project ${hedgewars_SOURCE_DIR}/hedgewars/hwengine.pas)
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endif()
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if (APPLE)
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    set(required_fpc_version 2.6)
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else()
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    set(required_fpc_version 2.2)
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endif()
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set(engine_sources
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    ${hwengine_project}
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    LuaPas.pas
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    PNGh.pas
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    SDLh.pas
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    uAI.pas
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    uAIActions.pas
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    uAILandMarks.pas
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    uAIAmmoTests.pas
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    uAIMisc.pas
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    uAmmos.pas
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    uCaptions.pas
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    uChat.pas
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    uCollisions.pas
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    uCommands.pas
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    uCommandHandlers.pas
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    uConsole.pas
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    uConsts.pas
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    uCursor.pas
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    uDebug.pas
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    uFloat.pas
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    uGame.pas
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    uGears.pas
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    uGearsHandlers.pas
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    uGearsHandlersRope.pas
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    uGearsHedgehog.pas
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    uGearsList.pas
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    uGearsRender.pas
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    uGearsUtils.pas
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    uIO.pas
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    uInputHandler.pas
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    uLand.pas
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    uLandGenMaze.pas
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    uLandGraphics.pas
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    uLandObjects.pas
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    uLandOutline.pas
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    uLandPainted.pas
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    uLandTemplates.pas
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    uLandTexture.pas
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    uLocale.pas
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    uMisc.pas
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    uPhysFSLayer.pas
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    uRandom.pas
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    uRender.pas
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    uRenderUtils.pas
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    uScript.pas
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    uSinTable.pas
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    uSound.pas
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    uStats.pas
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    uStore.pas
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    uTeams.pas
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    uTextures.pas
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    uTouch.pas
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    uTypes.pas
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    uUtils.pas
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    uVariables.pas
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    uVideoRec.pas
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    uVisualGears.pas
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    uWorld.pas
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    GSHandlers.inc
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    VGSHandlers.inc
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    ArgParsers.inc
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    options.inc
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    adler32.pas
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    ${CMAKE_CURRENT_BINARY_DIR}/config.inc
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    )
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if(BUILD_ENGINE_LIBRARY)
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    message(WARNING "Engine will be built as library (experimental)")
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    set(pascal_flags "-dHWLIBRARY" ${pascal_flags})
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    # create position independent code, only required for x68_64 builds, similar to -fPIC
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    if(CMAKE_SIZEOF_VOID_P MATCHES "8")
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        set(pascal_flags "-Cg" ${pascal_flags})
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    endif(CMAKE_SIZEOF_VOID_P MATCHES "8")
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    # due to compiler/linker issues on Max OS X 10.6 -k-no_order_inits is needed to avoid linking fail
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    if(APPLE AND current_macosx_version VERSION_GREATER "10.5")
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        set(pascal_flags "-k-no_order_inits" ${pascal_flags})
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    endif()
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endif(BUILD_ENGINE_LIBRARY)
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# Check Freepascal version
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find_package(Freepascal)
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if (FPC_VERSION VERSION_LESS required_fpc_version)
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    message(FATAL_ERROR "Freepascal is too old, minimum version required is ${required_fpc_version}")
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endif()
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#DEPENDECIES AND EXECUTABLES SECTION
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if(APPLE)
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    string(REGEX MATCH "[pP][pP][cC]+" powerpc_build "${CMAKE_OSX_ARCHITECTURES}")
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    string(REGEX MATCH "[iI]386+" i386_build "${CMAKE_OSX_ARCHITECTURES}")
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    string(REGEX MATCH "[xX]86_64+" x86_64_build "${CMAKE_OSX_ARCHITECTURES}")
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    if(powerpc_build)
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        set(powerpc_build "powerpc")
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    endif()
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    #on OSX we need to provide the SDL_main() function when building as executable
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    if(NOT BUILD_ENGINE_LIBRARY)
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        #let's look for the installed sdlmain file; if it is not found, let's build our own
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        find_package(SDL REQUIRED)
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        #remove the ";-framework Cocoa" from the SDL_LIBRARY variable
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        string(REGEX REPLACE "(.*);-.*" "\\1" sdl_dir "${SDL_LIBRARY}")
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        #find libsdmain.a
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        find_file(SDLMAIN_LIB libSDLMain.a PATHS ${sdl_dir}/Resources/)
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        if(SDLMAIN_LIB MATCHES "SDLMAIN_LIB-NOTFOUND")
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            include_directories(${SDL_INCLUDE_DIR})
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            add_library (SDLmain STATIC SDLMain.m)
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            #add a dependency to the hwengine target
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            set(engine_sources ${engine_sources} SDLmain)
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            set(SDLMAIN_LIB "${LIBRARY_OUTPUT_PATH}/libSDLmain.a")
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        endif()
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        set(pascal_flags "-k${SDLMAIN_LIB}" ${pascal_flags})
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    endif()
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endif(APPLE)
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if(NOT NOPNG)
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    find_package(PNG)
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    if(${PNG_FOUND})
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        set(pascal_flags "-dPNG_SCREENSHOTS" ${pascal_flags})
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        if(APPLE)  # fpc png unit doesn't pull the library (see bug 21833)
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            set(pascal_flags "-k${PNG_LIBRARY}" ${pascal_flags})
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        endif()
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    else()
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        message(WARNING "Screenshots will be in BMP format because libpng was not found")
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    endif()
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else()
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    message(STATUS "Screenshots will be in BMP format per user request")
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endif()
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#this command is a workaround to some inlining issues present in older FreePascal versions and fixed in 2.6
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if(FPC_VERSION VERSION_LESS "2.6")
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    #under some configurations CMAKE_BUILD_TOOL fails to pass on the jobserver, breaking parallel compilation
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    if(UNIX)
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        set(SAFE_BUILD_TOOL $(MAKE))
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    else()
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        set(SAFE_BUILD_TOOL ${CMAKE_BUILD_TOOL})
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    endif()
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    add_custom_target(ENGINECLEAN COMMAND ${SAFE_BUILD_TOOL} "clean" "${PROJECT_BINARY_DIR}" "${hedgewars_SOURCE_DIR}/hedgewars")
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endif()
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if(NOT NOVIDEOREC)
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    set(FFMPEG_FIND_QUIETLY true)
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    find_package(FFMPEG)
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    if(${FFMPEG_FOUND})
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        # TODO: this check is only for SDL < 2
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        # fpc will take care of linking but we need to have this library installed
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        find_package(GLUT REQUIRED)
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        #TODO: convert avwrapper to .pas unit so we can skip this step
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        include_directories(${FFMPEG_INCLUDE_DIR})
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        set(pascal_flags "-dUSE_VIDEO_RECORDING" ${pascal_flags})
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        IF (WIN32)
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            # there are some problems with linking our avwrapper as static lib, so link it as shared
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            add_library(avwrapper SHARED avwrapper.c)
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            target_link_libraries(avwrapper ${FFMPEG_LIBRARIES})
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            install(PROGRAMS "${EXECUTABLE_OUTPUT_PATH}/${CMAKE_SHARED_LIBRARY_PREFIX}avwrapper${CMAKE_SHARED_LIBRARY_SUFFIX}" DESTINATION ${target_dir})
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        ELSE()
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            add_library(avwrapper STATIC avwrapper.c)
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            set(pascal_flags "-k${FFMPEG_LIBAVCODEC}" "-k${FFMPEG_LIBAVFORMAT}" "-k${FFMPEG_LIBAVUTIL}" ${pascal_flags})
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        ENDIF()
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    else()
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        message(WARNING "Could NOT find FFMPEG/LibAV, video recording will be disabled")
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    endif()
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else()
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    message(STATUS "Video recording disabled by user")
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endif()
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set(fpc_flags ${NOEXECSTACK_FLAGS} ${pascal_flags} ${hwengine_project})
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if(NOT APPLE)
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    #here is the command for standard executables or for shared library
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    add_custom_command(OUTPUT "${EXECUTABLE_OUTPUT_PATH}/${engine_output_name}"
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        COMMAND "${FPC_EXECUTABLE}"
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        ARGS ${fpc_flags}
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        MAIN_DEPENDENCY ${hwengine_project}
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        DEPENDS ${engine_sources}
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        )
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else()
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    #these are the dependencies for building a universal binary on Mac OS X
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    foreach (build_arch ${powerpc_build} ${i386_build} ${x86_64_build})
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        set(lipo_args_list "${EXECUTABLE_OUTPUT_PATH}/hwengine.${build_arch}" ${lipo_args_list})
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        add_custom_command(OUTPUT "${EXECUTABLE_OUTPUT_PATH}/hwengine.${build_arch}"
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            COMMAND "${FPC_EXECUTABLE}"
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            ARGS ${fpc_flags} -ohwengine.${build_arch} -P${build_arch}
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            MAIN_DEPENDENCY ${hwengine_project}
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            DEPENDS ${engine_sources}
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            )
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        add_custom_target(hwengine.${build_arch} ALL DEPENDS "${EXECUTABLE_OUTPUT_PATH}/hwengine.${build_arch}")
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    endforeach()
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    add_custom_command(OUTPUT "${EXECUTABLE_OUTPUT_PATH}/${engine_output_name}"
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        COMMAND "lipo"
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        ARGS ${lipo_args_list} -create -output ${EXECUTABLE_OUTPUT_PATH}/${engine_output_name}
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        DEPENDS ${lipo_args_list}
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        )
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endif()
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add_custom_target(${engine_output_name} ALL DEPENDS "${EXECUTABLE_OUTPUT_PATH}/${engine_output_name}")
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#when system Lua is not found we need to compile it before engine
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if(NOT LUA_FOUND)
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    add_dependencies(${engine_output_name} lua)
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endif()
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# compile physfs before engine
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add_dependencies(${engine_output_name} physfs)
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#when ffmpeg/libav is found we need to compile it before engine
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#TODO: convert avwrapper to .pas unit so we can skip this step
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if(${FFMPEG_FOUND})
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    add_dependencies(${engine_output_name} avwrapper)
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endif()
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#this command is a workaround to some inlining issues present in older FreePascal versions and fixed in 2.6
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if((FPC_VERSION VERSION_LESS "2.6") AND (NOVIDEOREC OR NOT ${FFMPEG_FOUND}))
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    add_dependencies(${engine_output_name} ENGINECLEAN)
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endif()
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install(PROGRAMS "${EXECUTABLE_OUTPUT_PATH}/${engine_output_name}" DESTINATION ${target_dir})