cmake_minimum_required (VERSION 2.8.11) if(COMMAND cmake_policy) if(POLICY CMP0054) cmake_policy(SET CMP0054 NEW) endif() if(POLICY CMP0042) cmake_policy(SET CMP0042 NEW) endif() endif() include (CheckFunctionExists) include (CheckIncludeFile) include (CheckLibraryExists) include (CheckCXXSourceCompiles) include (CheckCXXCompilerFlag) include (GenerateExportHeader) # using 10.7 because boost requires libc++ and 10.6 doesn't include it set(CMAKE_OSX_DEPLOYMENT_TARGET 10.7) # only relevant for building shared libs but let's set it regardless set(CMAKE_OSX_RPATH 1) # Set the C++ standard to C++98 to avoid compilation errors on GCC 6 (which # defaults to C++14). if(CMAKE_VERSION VERSION_LESS "3.1") if(CMAKE_COMPILER_IS_GNUCXX) set (CMAKE_CXX_FLAGS "-std=gnu++98 ${CMAKE_CXX_FLAGS}") endif() else() set (CMAKE_CXX_STANDARD 98) endif() project(SimGear) # read 'version' file into a variable (stripping any newlines or spaces) file(READ version versionFile) string(STRIP ${versionFile} SIMGEAR_VERSION) # add a dependency on the versino file set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS version) set(FIND_LIBRARY_USE_LIB64_PATHS ON) # use simgear version also as the SO version (if building SOs) SET(SIMGEAR_SOVERSION ${SIMGEAR_VERSION}) # Warning when build is not an out-of-source build. string(COMPARE EQUAL "${CMAKE_SOURCE_DIR}" "${CMAKE_BINARY_DIR}" InSourceBuild) if(InSourceBuild) message(WARNING "Avoid building inside the source tree!") message(WARNING "Create a separate build directory instead (i.e. 'sgbuild') and call CMake from there: ") message(WARNING " mkdir ../sgbuild && cd ../sgbuild && cmake ${CMAKE_SOURCE_DIR}") endif(InSourceBuild) #packaging SET(CPACK_RESOURCE_FILE_LICENSE "${PROJECT_SOURCE_DIR}/COPYING") SET(CPACK_RESOURCE_FILE_README "${PROJECT_SOURCE_DIR}/README") SET(CPACK_PACKAGE_DESCRIPTION_SUMMARY "Simulation support libraries for FlightGear and related projects") SET(CPACK_PACKAGE_VENDOR "The FlightGear project") SET(CPACK_GENERATOR "TBZ2") SET(CPACK_INSTALL_CMAKE_PROJECTS ${CMAKE_CURRENT_BINARY_DIR};SimGear;ALL;/) # split version string into components, note CMAKE_MATCH_0 is the entire regexp match string(REGEX MATCH "([0-9]+)\\.([0-9]+)\\.([0-9]+)" CPACK_PACKAGE_VERSION ${SIMGEAR_VERSION} ) set(CPACK_PACKAGE_VERSION_MAJOR ${CMAKE_MATCH_1}) set(CPACK_PACKAGE_VERSION_MINOR ${CMAKE_MATCH_2}) set(CPACK_PACKAGE_VERSION_PATCH ${CMAKE_MATCH_3}) message(STATUS "version is ${CPACK_PACKAGE_VERSION_MAJOR} dot ${CPACK_PACKAGE_VERSION_MINOR} dot ${CPACK_PACKAGE_VERSION_PATCH}") set(CPACK_SOURCE_GENERATOR TBZ2) set(CPACK_SOURCE_PACKAGE_FILE_NAME "simgear-${SIMGEAR_VERSION}" CACHE INTERNAL "tarball basename") set(CPACK_SOURCE_IGNORE_FILES "^${PROJECT_SOURCE_DIR}/.git;\\\\.gitignore;Makefile.am;~$;${CPACK_SOURCE_IGNORE_FILES}") message(STATUS "ignoring: ${CPACK_SOURCE_IGNORE_FILES}") include (CPack) # We have some custom .cmake scripts not in the official distribution. set(CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/CMakeModules;${CMAKE_MODULE_PATH}") # Change the default build type to something fast if(NOT CMAKE_BUILD_TYPE) set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel." FORCE) endif(NOT CMAKE_BUILD_TYPE) # Determine name of library installation directory, i.e. "lib" vs "lib64", which # differs between all Debian-based vs all other Linux distros. # See cmake bug #11964, http://cmake.org/gitweb?p=cmake.git;a=commit;h=126c993d include(GNUInstallDirs) message(STATUS "Library installation directory: ${CMAKE_INSTALL_LIBDIR}") ##################################################################################### # Configure library search paths ##################################################################################### if(NOT "${CMAKE_LIBRARY_ARCHITECTURE}" STREQUAL "") # Workaround for Ubuntu/Debian which introduced the "multiarch" library # directory structure, which is unsupported by CMake < 2.8.10, so we need to # add paths manually # see http://www.cmake.org/Bug/view.php?id=12049 and # http://www.cmake.org/Bug/view.php?id=12037 list(APPEND ADDITIONAL_LIBRARY_PATHS /usr/local/lib/${CMAKE_LIBRARY_ARCHITECTURE} /usr/lib/${CMAKE_LIBRARY_ARCHITECTURE} /lib/${CMAKE_LIBRARY_ARCHITECTURE}) message(STATUS "additional library directories: ${ADDITIONAL_LIBRARY_PATHS}") endif() ##################################################################################### if (NOT MSVC) option(SIMGEAR_SHARED "Set to ON to build SimGear as a shared library/framework" OFF) option(SYSTEM_EXPAT "Set to ON to build SimGear using the system expat library" OFF) option(SYSTEM_UDNS "Set to ON to build SimGear using the system udns library" OFF) else() # Building SimGear DLLs is currently not supported for MSVC. set(SIMGEAR_SHARED OFF) # Using external 3rd party libraries is currently not supported for MSVC - it would require shared simgear (DLL). set(SYSTEM_EXPAT OFF) set(SYSTEM_UDNS OFF) endif() option(SIMGEAR_HEADLESS "Set to ON to build SimGear without GUI/graphics support" OFF) option(ENABLE_RTI "Set to ON to build SimGear with RTI support" OFF) option(ENABLE_TESTS "Set to OFF to disable building SimGear's test applications" ON) option(ENABLE_SOUND "Set to OFF to disable building SimGear's sound support" ON) option(ENABLE_PKGUTIL "Set to ON to build the sg_pkgutil application (default)" ON) option(ENABLE_DNS "Set to ON to use udns library and DNS service resolver" ON) if (MSVC) GET_FILENAME_COMPONENT(PARENT_DIR ${PROJECT_BINARY_DIR} PATH) if (CMAKE_CL_64) SET(TEST_3RDPARTY_DIR "${PARENT_DIR}/3rdparty.x64") else (CMAKE_CL_64) SET(TEST_3RDPARTY_DIR "${PARENT_DIR}/3rdparty") endif (CMAKE_CL_64) if (EXISTS ${TEST_3RDPARTY_DIR}) set(MSVC_3RDPARTY_ROOT ${PARENT_DIR} CACHE PATH "Location where the third-party dependencies are extracted") else (EXISTS ${TEST_3RDPARTY_DIR}) set(MSVC_3RDPARTY_ROOT NOT_FOUND CACHE PATH "Location where the third-party dependencies are extracted") endif (EXISTS ${TEST_3RDPARTY_DIR}) else (MSVC) set(MSVC_3RDPARTY_ROOT NOT_FOUND CACHE PATH "Location where the third-party dependencies are extracted") endif (MSVC) if (MSVC AND MSVC_3RDPARTY_ROOT) message(STATUS "3rdparty files located in ${MSVC_3RDPARTY_ROOT}") set( OSG_MSVC "msvc" ) if (${MSVC_VERSION} EQUAL 1900) set( OSG_MSVC ${OSG_MSVC}140 ) elseif (${MSVC_VERSION} EQUAL 1800) set( OSG_MSVC ${OSG_MSVC}120 ) elseif (${MSVC_VERSION} EQUAL 1700) set( OSG_MSVC ${OSG_MSVC}110 ) elseif (${MSVC_VERSION} EQUAL 1600) set( OSG_MSVC ${OSG_MSVC}100 ) endif () if (CMAKE_CL_64) set( OSG_MSVC ${OSG_MSVC}-64 ) set( MSVC_3RDPARTY_DIR 3rdParty.x64 ) else (CMAKE_CL_64) set( MSVC_3RDPARTY_DIR 3rdParty ) endif (CMAKE_CL_64) set (CMAKE_LIBRARY_PATH ${MSVC_3RDPARTY_ROOT}/${MSVC_3RDPARTY_DIR}/lib ${MSVC_3RDPARTY_ROOT}/install/${OSG_MSVC}/OpenScenegraph/lib ${MSVC_3RDPARTY_ROOT}/install/${OSG_MSVC}/OpenRTI/lib ) set (CMAKE_INCLUDE_PATH ${MSVC_3RDPARTY_ROOT}/${MSVC_3RDPARTY_DIR}/include ${MSVC_3RDPARTY_ROOT}/install/${OSG_MSVC}/OpenScenegraph/include ${MSVC_3RDPARTY_ROOT}/install/${OSG_MSVC}/OpenRTI/include) GET_FILENAME_COMPONENT(MSVC_ROOT_PARENT_DIR ${MSVC_3RDPARTY_ROOT} PATH) find_path(BOOST_ROOT boost/version.hpp PATHS ${MSVC_ROOT_PARENT_DIR} ${MSVC_3RDPARTY_ROOT}/boost ${MSVC_3RDPARTY_ROOT}/boost_1_52_0 ${MSVC_3RDPARTY_ROOT}/boost_1_51_0 ${MSVC_3RDPARTY_ROOT}/boost_1_50_0 ${MSVC_3RDPARTY_ROOT}/boost_1_49_0 ${MSVC_3RDPARTY_ROOT}/boost_1_48_0 ${MSVC_3RDPARTY_ROOT}/boost_1_47_0 ${MSVC_3RDPARTY_ROOT}/boost_1_46_1 ${MSVC_3RDPARTY_ROOT}/boost_1_46_0 ${MSVC_3RDPARTY_ROOT}/boost_1_45_0 ${MSVC_3RDPARTY_ROOT}/boost_1_44_0 ) # set (BOOST_ROOT ${MSVC_3RDPARTY_ROOT}/boost_1_44_0) message(STATUS "BOOST_ROOT is ${BOOST_ROOT}") set (OPENAL_INCLUDE_DIR ${MSVC_3RDPARTY_ROOT}/${MSVC_3RDPARTY_DIR}/include) set (OPENAL_LIBRARY_DIR ${MSVC_3RDPARTY_ROOT}/${MSVC_3RDPARTY_DIR}/lib) endif (MSVC AND MSVC_3RDPARTY_ROOT) if(APPLE) find_library(COCOA_LIBRARY Cocoa) # this should be handled by setting CMAKE_OSX_DEPLOYMENT_TARGET # but it's not working reliably, so forcing it for now SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mmacosx-version-min=10.7") SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mmacosx-version-min=10.7") endif() if(${CMAKE_SYSTEM_NAME} MATCHES "Linux" OR ${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD") find_package(Threads REQUIRED) endif() # Somehow this only works if included before searching for Boost... include(BoostTestTargets) find_package(Boost REQUIRED) set (BOOST_CXX_FLAGS "-DBOOST_BIMAP_DISABLE_SERIALIZATION") if(SIMGEAR_HEADLESS) message(STATUS "SimGear mode: HEADLESS") set(ENABLE_SOUND 0) else() message(STATUS "SimGear mode: NORMAL") find_package(OpenGL REQUIRED) if (ENABLE_SOUND) find_package(OpenAL REQUIRED) message(STATUS "Sound support: ENABLED") endif(ENABLE_SOUND) find_package(OpenSceneGraph 3.2.0 REQUIRED osgText osgSim osgDB osgParticle osgGA osgViewer osgUtil) endif(SIMGEAR_HEADLESS) find_package(ZLIB REQUIRED) find_package(CURL REQUIRED) if (SYSTEM_EXPAT) message(STATUS "Requested to use system Expat library, forcing SIMGEAR_SHARED to true") set(SIMGEAR_SHARED ON) find_package(EXPAT REQUIRED) else() message(STATUS "Using built-in expat code") # XML_STATIC is important to avoid sg_expat_external.h # declaring symbols as declspec(import) add_definitions(-DHAVE_EXPAT_CONFIG_H -DXML_STATIC) set(EXPAT_INCLUDE_DIRS ${PROJECT_SOURCE_DIR}/3rdparty/expat ${PROJECT_BINARY_DIR}/3rdparty/expat) endif(SYSTEM_EXPAT) include_directories(${EXPAT_INCLUDE_DIRS}) check_include_file(inttypes.h HAVE_INTTYPES_H) check_include_file(sys/time.h HAVE_SYS_TIME_H) check_include_file(sys/timeb.h HAVE_SYS_TIMEB_H) check_include_file(unistd.h HAVE_UNISTD_H) check_include_file(windows.h HAVE_WINDOWS_H) if(HAVE_INTTYPES_H) # ShivaVG needs inttypes.h add_definitions(-DHAVE_INTTYPES_H) endif() if(ENABLE_RTI) # See if we have any rti library variant installed message(STATUS "RTI: ENABLED") find_package(RTI) else() message(STATUS "RTI: DISABLED") endif(ENABLE_RTI) check_function_exists(gettimeofday HAVE_GETTIMEOFDAY) check_function_exists(ftime HAVE_FTIME) check_function_exists(timegm HAVE_TIMEGM) check_function_exists(rint HAVE_RINT) check_function_exists(mkdtemp HAVE_MKDTEMP) check_function_exists(bcopy HAVE_BCOPY) check_function_exists(mmap HAVE_MMAP) if(HAVE_UNISTD_H) set(CMAKE_REQUIRED_INCLUDES ${CMAKE_INCLUDE_PATH}) check_cxx_source_compiles( "#include #if !defined(_POSIX_TIMERS) || (0 >= _POSIX_TIMERS) #error clock_gettime is not supported #endif int main() { return 0; } " HAVE_CLOCK_GETTIME) endif(HAVE_UNISTD_H) set(RT_LIBRARY "") if(HAVE_CLOCK_GETTIME) check_library_exists(rt clock_gettime "" HAVE_RT) if(HAVE_RT) set(RT_LIBRARY rt) endif(HAVE_RT) endif(HAVE_CLOCK_GETTIME) set(DL_LIBRARY "") check_cxx_source_compiles( "#include int main(void) { return 0; } " HAVE_DLFCN_H) if(HAVE_DLFCN_H) check_library_exists(dl dlerror "" HAVE_DL) if(HAVE_DL) set(DL_LIBRARY "dl") endif() endif() SET(CMAKE_DEBUG_POSTFIX "d" CACHE STRING "add a postfix, usually 'd' on windows") SET(CMAKE_RELEASE_POSTFIX "" CACHE STRING "add a postfix, usually empty on windows") SET(CMAKE_RELWITHDEBINFO_POSTFIX "" CACHE STRING "add a postfix, usually empty on windows") SET(CMAKE_MINSIZEREL_POSTFIX "" CACHE STRING "add a postfix, usually empty on windows") # isnan might not be real symbol, so can't check using function_exists check_cxx_source_compiles( "#include int main() { return isnan(0.0);} " HAVE_ISNAN) check_cxx_source_compiles( "#include int main() { return std::isnan(0.0);} " HAVE_STD_ISNAN) if(CMAKE_COMPILER_IS_GNUCXX) set(WARNING_FLAGS_CXX "-Wall") set(WARNING_FLAGS_C "-Wall") # certain GCC versions don't provide the atomic builds, and hence # require is to provide them in SGAtomic.cxx set(CMAKE_REQUIRED_INCLUDES ${CMAKE_INCLUDE_PATH}) check_cxx_source_compiles( "int main() { unsigned mValue; return __sync_add_and_fetch(&mValue, 1); }" GCC_ATOMIC_BUILTINS_FOUND) endif(CMAKE_COMPILER_IS_GNUCXX) if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang") # Boost redeclares class members set(WARNING_FLAGS_CXX "-Wall -Wno-overloaded-virtual -Wno-redeclared-class-member") set(WARNING_FLAGS_C "-Wall") set(CMAKE_XCODE_ATTRIBUTE_CLANG_CXX_LIBRARY "libc++") set(CMAKE_XCODE_ATTRIBUTE_CLANG_CXX_LANGUAGE_STANDARD "c++11") set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -stdlib=libc++") endif() if(CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID STREQUAL "Clang") # boost goes haywire wrt static asserts check_cxx_compiler_flag(-Wno-unused-local-typedefs HAS_NOWARN_UNUSED_TYPEDEFS) if(HAS_NOWARN_UNUSED_TYPEDEFS) set(WARNING_FLAGS_CXX " ${WARNING_FLAGS_CXX} -Wno-unused-local-typedefs") endif() endif() if(WIN32) if(MINGW) add_definitions(-D_WIN32_WINNT=0x501) endif() if(MSVC) set(MSVC_FLAGS "-DWIN32 -DNOMINMAX -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D__CRT_NONSTDC_NO_WARNINGS /MP") if (${MSVC_VERSION} GREATER 1599) # needed to avoid link errors on multiply-defined standard C++ # symbols. Suspect this may be an OSG-DB export bug set( MSVC_LD_FLAGS "/FORCE:MULTIPLE" ) endif (${MSVC_VERSION} GREATER 1599) if (${MSVC_VERSION} GREATER 1899) # needed for debug builds with VS2015 set( MSVC_FLAGS "${MSVC_FLAGS} /bigobj" ) endif() endif(MSVC) # assumed on Windows set(HAVE_GETLOCALTIME 1) set( WINSOCK_LIBRARY "ws2_32.lib" ) set( RT_LIBRARY "winmm" ) endif(WIN32) set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${WARNING_FLAGS_C} ${MSVC_FLAGS}") set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${WARNING_FLAGS_CXX} ${MSVC_FLAGS} ${BOOST_CXX_FLAGS}") set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${MSVC_LD_FLAGS}") # use BEFORE to ensure local directories are used first, # ahead of system-installed libs include_directories(BEFORE ${PROJECT_SOURCE_DIR}) include_directories(BEFORE ${PROJECT_SOURCE_DIR}/simgear/canvas/ShivaVG/include) include_directories(BEFORE ${PROJECT_BINARY_DIR}/simgear) include_directories(${OPENSCENEGRAPH_INCLUDE_DIRS} ${Boost_INCLUDE_DIRS} ${ZLIB_INCLUDE_DIR} ${OPENAL_INCLUDE_DIR} ${CURL_INCLUDE_DIRS} ) add_definitions(-DHAVE_CONFIG_H) # configure a header file to pass some of the CMake settings # to the source code configure_file ( "${PROJECT_SOURCE_DIR}/simgear/simgear_config_cmake.h.in" "${PROJECT_BINARY_DIR}/simgear/simgear_config.h" ) if(ENABLE_TESTS) # enable CTest / make test target message(STATUS "Tests: ENABLED") include (Dart) enable_testing() else() message(STATUS "Tests: DISABLED") endif(ENABLE_TESTS) # always set TEST_LIBS as it is also used by other tools/applications set(TEST_LIBS_INTERNAL_CORE ${CMAKE_THREAD_LIBS_INIT} ${ZLIB_LIBRARY} ${WINSOCK_LIBRARY} ${RT_LIBRARY} ${DL_LIBRARY} ${COCOA_LIBRARY} ${CURL_LIBRARIES}) set(TEST_LIBS SimGearCore ${TEST_LIBS_INTERNAL_CORE}) if(NOT SIMGEAR_HEADLESS) set(TEST_LIBS SimGearScene ${OPENGL_LIBRARIES} ${TEST_LIBS}) endif() install (FILES ${PROJECT_BINARY_DIR}/simgear/simgear_config.h DESTINATION include/simgear/) include_directories(3rdparty/utf8/source) if(ENABLE_DNS) if(SYSTEM_UDNS) message(STATUS "Requested to use system udns library, forcing SIMGEAR_SHARED to true") set(SIMGEAR_SHARED ON) find_package(Udns REQUIRED) else() message(STATUS "DNS resolver: ENABLED") include_directories(3rdparty/udns) endif() else() message(STATUS "DNS resolver: DISABLED") endif() add_subdirectory(3rdparty) add_subdirectory(simgear) #----------------------------------------------------------------------------- ### Export stuff, see https://cmake.org/cmake/help/v3.2/manual/cmake-packages.7.html#creating-packages #----------------------------------------------------------------------------- generate_export_header(SimGearCore) if(NOT SIMGEAR_HEADLESS) generate_export_header(SimGearScene) endif() include(CMakePackageConfigHelpers) write_basic_package_version_file( "${CMAKE_CURRENT_BINARY_DIR}/SimGear/SimGearConfigVersion.cmake" VERSION ${SIMGEAR_VERSION} COMPATIBILITY AnyNewerVersion ) configure_file(SimGearConfig.cmake.in "${CMAKE_CURRENT_BINARY_DIR}/SimGear/SimGearConfig.cmake" @ONLY ) set(ConfigPackageLocation lib/cmake/SimGear) install(EXPORT SimGearTargets DESTINATION ${ConfigPackageLocation} ) install( FILES "${CMAKE_CURRENT_BINARY_DIR}/SimGear/SimGearConfig.cmake" "${CMAKE_CURRENT_BINARY_DIR}/SimGear/SimGearConfigVersion.cmake" DESTINATION ${ConfigPackageLocation} COMPONENT Devel ) #----------------------------------------------------------------------------- ### uninstall target #----------------------------------------------------------------------------- CONFIGURE_FILE( "${CMAKE_CURRENT_SOURCE_DIR}/CMakeModules/cmake_uninstall.cmake.in" "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake" IMMEDIATE @ONLY) ADD_CUSTOM_TARGET(uninstall "${CMAKE_COMMAND}" -P "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake")