Remove FindSDL2 find-module, use sdl2-config.cmake instead
This requires SDL >= 2.0.4.
Since <https://bugzilla.libsdl.org/show_bug.cgi?id=2464> was fixed in
SDL 2.0.4, SDL behaves as a CMake "config-file package", even if it was
not itself built using CMake: it installs a sdl2-config.cmake file to
${libdir}/cmake/SDL2, which tells CMake where to find SDL's headers and
library, analogous to a pkg-config .pc file.
As a result, we no longer need to copy/paste a "find-module package"
to be able to find a system copy of SDL >= 2.0.4 with find_package(SDL2).
Find-module packages are now discouraged by the CMake developers, in
favour of having upstream projects behave as config-file packages.
This results in a small API change: FindSDL2 used to set SDL2_INCLUDE_DIR
and SDL2_LIBRARY, but the standard behaviour for config-file packages is
to set <name>_INCLUDE_DIRS and <name>_LIBRARIES. Use the CONFIG keyword
to make sure we search in config-file package mode, and will not find a
FindSDL2.cmake in some other directory that implements the old interface.
In addition to deleting redundant code, this avoids some assumptions in
FindSDL2 about the layout of a SDL installation. The current libsdl2-dev
package in Debian breaks those assumptions; this is considered a bug
and will hopefully be fixed soon, but it illustrates how fragile these
assumptions can be. We can be more robust against different installation
layouts by relying on SDL's own CMake integration.
When linking to a copy of CMake in a non-standard location, users can
now set the SDL2_DIR or CMAKE_PREFIX_PATH environment variable to point
to it; previously, these users would have used the SDL2DIR environment
variable. This continues to be unnecessary if using matching system-wide
installations of CMake and SDL2, for example both from Debian.
if(APPLE AND EXISTS /usr/local/opt/qt5)
# Special treatment for OS X users who
# install Qt5 via Homebrew.
# Homebrew installs Qt5 (up to at least 5.9.1) in
# /usr/local/qt5, ensure it can be found by CMake since
# it is not in the default /usr/local prefix.
list(APPEND CMAKE_PREFIX_PATH "/usr/local/opt/qt5")
endif()
find_package(Qt5 COMPONENTS Core Widgets Gui Network)
include_directories(${Qt5Core_PRIVATE_INCLUDE_DIRS})
include(CheckLibraryExists)
find_package(SDL2 REQUIRED CONFIG)
find_package(SDL2_mixer 2 REQUIRED) #audio in SDLInteraction
include_directories(${SDL2_INCLUDE_DIRS})
include_directories(${SDL2_MIXER_INCLUDE_DIRS})
if(LIBAV_FOUND)
add_definitions(-DVIDEOREC -D__STDC_CONSTANT_MACROS)
include_directories(${LIBAV_INCLUDE_DIR})
list(APPEND HW_LINK_LIBS ${LIBAV_LIBRARIES})
endif()
# server messages localization
file(GLOB ServerSources ${CMAKE_SOURCE_DIR}/gameServer/*.hs)
foreach(hsfile ${ServerSources})
file(READ ${hsfile} hs)
string(REGEX MATCHALL "loc *\"[^\n\"]+\"" locs ${hs})
foreach(str ${locs})
string(REGEX REPLACE "loc *\"([^\n\"]+)\"" "QT_TRANSLATE_NOOP(\"server\", \"\\1\")" s ${str})
list(APPEND serverlocs ${s})
endforeach(str)
endforeach(hsfile)
list(REMOVE_DUPLICATES serverlocs)
list(GET serverlocs 0 firstline)
list(REMOVE_AT serverlocs 0)
set(locsout "const char * serverMessages[] = {\n")
foreach(l ${serverlocs})
list(APPEND locsout ${l} ",\n")
endforeach(l)
list(APPEND locsout ${firstline} "\n}\\;\n")
file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/servermessages.h ${locsout})
# Credits localization
file(GLOB CreditsCSV ${CMAKE_SOURCE_DIR}/QTfrontend/res/credits.csv)
foreach(csvfile ${CreditsCSV})
# Load credits.csv
file(READ ${csvfile} csv)
# Match first line of CSV file
string(REGEX MATCH "(E|S|U),\"[^\n\"]+\"" loc_top ${csv})
string(REGEX REPLACE "(E|S|U),\"([^\n\"]+)\"" "\nQT_TRANSLATE_NOOP(\"credits\", \"\\2\")" s ${loc_top})
list(APPEND csvlocs ${s})
# Match remaining lines of CSV file
string(REGEX MATCHALL "\n(E|S|U),\"[^\n\"]+\"" locs ${csv})
foreach(str ${locs})
string(REGEX REPLACE "(E|S|U),\"([^\n\"]+)\"" "QT_TRANSLATE_NOOP(\"credits\", \"\\2\")" s ${str})
list(APPEND csvlocs ${s})
endforeach(str)
endforeach(csvfile)
list(REMOVE_DUPLICATES csvlocs)
list(GET csvlocs 0 firstline)
list(REMOVE_AT csvlocs 0)
set(locsout "const char * creditsMessages[] = {")
foreach(l ${csvlocs})
list(APPEND locsout ${l} ",")
endforeach(l)
list(APPEND locsout ${firstline} "\n}\\;\n")
file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/creditsmessages.h ${locsout})
include_directories(${CMAKE_CURRENT_BINARY_DIR})
include_directories(${CMAKE_CURRENT_SOURCE_DIR})
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/model)
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/net)
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/ui)
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/ui/dialog)
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/ui/page)
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/ui/widget)
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/util)
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/util/platform)
include_directories(BEFORE ${PHYSFS_INCLUDE_DIR})
include_directories(BEFORE ${PHYSLAYER_INCLUDE_DIR})
include_directories(${LUA_INCLUDE_DIR}) #brought by physlayer hwpacksmounter.h
if(UNIX)
# HACK: in freebsd cannot find iconv.h included via SDL.h
include_directories("/usr/local/include")
endif(UNIX)
#only the cocoa version of qt supports building 64 bit apps
if(APPLE AND (CMAKE_OSX_ARCHITECTURES MATCHES "x86_64*") AND (NOT QT_MAC_USE_COCOA))
message(FATAL_ERROR "Building the 64 bit version of Hedgewars *requires* the Cocoa variant of QT on Mac OS X")
endif()
#endif()
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/hwconsts.cpp.in ${CMAKE_CURRENT_BINARY_DIR}/hwconsts.cpp)
file(GLOB NetCpp net/*.cpp)
file(GLOB ModelCpp model/*.cpp)
file(GLOB_RECURSE UIcpp ui/*.cpp)
file(GLOB UtilCpp util/*.cpp)
list(APPEND hwfr_src
${ModelCpp}
${NetCpp}
${UIcpp}
${UtilCpp}
achievements.cpp
binds.cpp
drawmapscene.cpp
game.cpp
gameuiconfig.cpp
HWApplication.cpp
hwform.cpp
main.cpp
team.cpp
campaign.cpp
mission.cpp
ui_hwform.cpp
${CMAKE_CURRENT_BINARY_DIR}/hwconsts.cpp
${CMAKE_CURRENT_SOURCE_DIR}/sdlkeys.cpp
)
if(MINGW)
# resource compilation for mingw
add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/hedgewars_rc.o
COMMAND windres -I ${CMAKE_CURRENT_SOURCE_DIR}
-i ${CMAKE_CURRENT_SOURCE_DIR}/hedgewars.rc
-o ${CMAKE_CURRENT_BINARY_DIR}/hedgewars_rc.o)
list(APPEND hwfr_src ${CMAKE_CURRENT_BINARY_DIR}/hedgewars_rc.o)
else(MINGW)
list(APPEND hwfr_src hedgewars.rc)
endif(MINGW)
file(GLOB ModelHdr model/*.h)
file(GLOB NetHdr net/*.h)
file(GLOB_RECURSE UIhdr ui/*.h)
file(GLOB UtilHdr util/*.h)
set(hwfr_moc_hdrs
${ModelHdr}
${NetHdr}
${UIhdr}
drawmapscene.h
game.h
gameuiconfig.h
HWApplication.h
hwform.h
team.h
util/DataManager.h
util/LibavInteraction.h
)
set(hwfr_hdrs
${UtilHdr}
team.h
achievements.h
binds.h
ui_hwform.h
hwconsts.h
sdlkeys.h
campaign.h
mission.h
${CMAKE_CURRENT_BINARY_DIR}/servermessages.h
${CMAKE_CURRENT_BINARY_DIR}/creditsmessages.h
)
set(hwfr_rez hedgewars.qrc)
if(BUILD_ENGINE_LIBRARY)
add_definitions(-DHWLIBRARY=1)
set(hwlibname "${EXECUTABLE_OUTPUT_PATH}/${CMAKE_SHARED_LIBRARY_PREFIX}hwengine${CMAKE_SHARED_LIBRARY_SUFFIX}")
list(APPEND HW_LINK_LIBS ${hwlibname})
if(LIBAV_FOUND)
# add_subdirectory(avwrapper)
list(APPEND HW_LINK_LIBS avwrapper)
endif()
endif()
qt5_add_resources(hwfr_rez_src ${hwfr_rez})
qt5_wrap_cpp(hwfr_moc_srcs ${hwfr_moc_hdrs})
if(APPLE)
find_library(iokit_framework NAMES IOKit)
list(APPEND HW_LINK_LIBS ${iokit_framework})
list(APPEND hwfr_src util/platform/CocoaInitializer.mm
util/platform/InstallController.cpp
util/platform/M3Panel.mm
util/platform/M3InstallController.m
util/platform/NSWorkspace_RBAdditions.m
)
include(${CMAKE_MODULE_PATH}/utils.cmake)
find_package_or_disable_msg(Sparkle NOAUTOUPDATE "Autoupdater will not be built.")
if(SPARKLE_FOUND)
add_definitions(-DSPARKLE_ENABLED)
list(APPEND hwfr_src util/platform/AutoUpdater.cpp
util/platform/SparkleAutoUpdater.mm)
list(APPEND HW_LINK_LIBS ${SPARKLE_LIBRARY})
endif()
endif()
#when debugging, always prompt a console to see fronted messages
#TODO: check it doesn't interfere on UNIX
if(CMAKE_BUILD_TYPE STREQUAL "Release" OR CMAKE_BUILD_TYPE STREQUAL "RelWithDebInfo")
set(console_access "WIN32")
endif(CMAKE_BUILD_TYPE STREQUAL "Release" OR CMAKE_BUILD_TYPE STREQUAL "RelWithDebInfo")
add_executable(hedgewars ${console_access}
${hwfr_src}
${hwfr_moc_srcs}
${hwfr_hdrs}
${hwfr_rez_src}
)
list(APPEND HW_LINK_LIBS
physfs physlayer
Qt5::Core Qt5::Widgets Qt5::Gui Qt5::Network
)
list(APPEND HW_LINK_LIBS
${SDL2_LIBRARIES}
${SDL2_MIXER_LIBRARIES}
)
if(WIN32 AND NOT UNIX)
if(NOT SDL2_LIBRARIES)
list(APPEND HW_LINK_LIBS SDL2)
endif()
list(APPEND HW_LINK_LIBS
ole32
oleaut32
winspool
uuid
)
endif()
if(CMAKE_CXX_COMPILER MATCHES "clang*")
list(APPEND HW_LINK_LIBS stdc++ m)
if(NOT APPLE)
list(APPEND HW_LINK_LIBS atomic)
endif()
endif()
if(WIN32 AND VCPKG_TOOLCHAIN)
list(APPEND HW_LINK_LIBS Qt5::WinMain)
endif()
target_link_libraries(hedgewars ${HW_LINK_LIBS})
install(PROGRAMS "${EXECUTABLE_OUTPUT_PATH}/hedgewars${CMAKE_EXECUTABLE_SUFFIX}" DESTINATION ${target_binary_install_dir})