simgear/CMakeLists.txt
2017-08-21 23:07:05 +01:00

567 lines
19 KiB
CMake

cmake_minimum_required (VERSION 3.0)
if(COMMAND cmake_policy)
if(POLICY CMP0054)
cmake_policy(SET CMP0054 NEW)
endif()
if(POLICY CMP0042)
cmake_policy(SET CMP0042 NEW)
endif()
endif()
message(STATUS "CMAKE Build type: ${CMAKE_BUILD_TYPE}")
# Set a default build type if none was specified
if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
message(STATUS "Setting build type to 'Debug' as none was specified.")
set(CMAKE_BUILD_TYPE Debug CACHE STRING "Choose the type of build." FORCE)
# Set the possible values of build type for cmake-gui
set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "Debug" "Release"
"MinSizeRel" "RelWithDebInfo")
endif()
include (CheckFunctionExists)
include (CheckIncludeFile)
include (CheckLibraryExists)
include (CheckCXXSourceCompiles)
include (CheckCXXCompilerFlag)
include (GenerateExportHeader)
# only relevant for building shared libs but let's set it regardless
set(CMAKE_OSX_RPATH 1)
# let's use & require C++11 - note these are only functional with CMake 3.1
# we do manual fallbacks for CMake 3.0 in the compilers section
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED YES)
# read 'version' file into a variable (stripping any newlines or spaces)
file(READ version versionFile)
string(STRIP ${versionFile} SIMGEAR_VERSION)
project(SimGear VERSION ${SIMGEAR_VERSION} LANGUAGES C CXX)
# using 10.7 because boost requires libc++ and 10.6 doesn't include it
# Cmake documentation says we must set this before calling project(), but
# it only seems to be picked up setting it /after/ the call to project()
set(CMAKE_OSX_DEPLOYMENT_TARGET "10.7")
# 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
"^${PROJECT_SOURCE_DIR}/.git;\\\\.gitignore;Makefile.am;~$;${CPACK_SOURCE_IGNORE_FILES}")
include (CPack)
# We have some custom .cmake scripts not in the official distribution.
set(CMAKE_MODULE_PATH "${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 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_GDAL "Set to ON to build SimGear with GDAL 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(USE_AEONWAVE "Set to ON to use AeonWave instead of OpenAL" OFF)
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)
option(ENABLE_SIMD "Enable SSE/SSE2 support for x86 compilers" ON)
option(ENABLE_OPENMP "Enable OpenMP compiler support" OFF)
include (DetectArch)
# until the fstream fix is applied and generally available in OSG,
# keep the compatability link option as the default
option(OSG_FSTREAM_EXPORT_FIXED "Set to ON if the osgDB fstream export patch is applied" OFF)
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 )
else ()
message(FATAL_ERROR "Visual Studio 2013/2015 is required now")
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)
if(NOT BOOST_INCLUDEDIR)
# if this variable was not set by the user, set it to 3rdparty root's
# parent dir, which is the normal location for people using our
# windows-3rd-party repo
GET_FILENAME_COMPONENT(MSVC_ROOT_PARENT_DIR ${MSVC_3RDPARTY_ROOT} PATH)
set(BOOST_INCLUDEDIR ${MSVC_ROOT_PARENT_DIR})
message(STATUS "BOOST_INCLUDEDIR is ${BOOST_INCLUDEDIR}")
endif()
if (NOT USE_AEONWAVE)
set (OPENAL_INCLUDE_DIR ${MSVC_3RDPARTY_ROOT}/${MSVC_3RDPARTY_DIR}/include)
set (OPENAL_LIBRARY_DIR ${MSVC_3RDPARTY_ROOT}/${MSVC_3RDPARTY_DIR}/lib)
message(STATUS "OPENAL_INCLUDE_DIR is ${OPENAL_INCLUDE_DIR}")
endif()
endif (MSVC AND MSVC_3RDPARTY_ROOT)
if(APPLE)
find_library(COCOA_LIBRARY Cocoa)
endif()
if(${CMAKE_SYSTEM_NAME} MATCHES "Linux" OR ${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
find_package(Threads REQUIRED)
endif()
find_package(Boost REQUIRED)
set (BOOST_CXX_FLAGS "-DBOOST_BIMAP_DISABLE_SERIALIZATION")
include(BoostTestTargets)
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)
if (USE_AEONWAVE)
find_package(AAX COMPONENTS aax REQUIRED)
else()
find_package(OpenAL REQUIRED)
endif()
message(STATUS "Sound support: ENABLED")
endif(ENABLE_SOUND)
find_package(OpenSceneGraph 3.2.0 REQUIRED osgText osgSim osgDB osgParticle osgGA osgViewer osgUtil)
if (MSVC)
set(CMAKE_REQUIRED_INCLUDES ${OPENSCENEGRAPH_INCLUDE_DIRS})
# ensure OSG was compiled with OSG_USE_UTF8_FILENAME set
check_cxx_source_compiles(
"#include <osg/Config>
#if !defined(OSG_USE_UTF8_FILENAME)
#error OSG UTF8 support not enabled
#endif
int main() { return 0; }"
SIMGEAR_OSG_USE_UTF8_FILENAME)
if (NOT SIMGEAR_OSG_USE_UTF8_FILENAME)
message(FATAL_ERROR "Please rebuild OSG with OSG_USE_UTF8_FILENAME set to ON")
endif()
endif()
endif(SIMGEAR_HEADLESS)
find_package(ZLIB 1.2.4 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
${PROJECT_BINARY_DIR}/3rdparty/expat)
endif(SYSTEM_EXPAT)
check_include_file(inttypes.h HAVE_INTTYPES_H)
check_include_file(sys/time.h HAVE_SYS_TIME_H)
check_include_file(unistd.h HAVE_UNISTD_H)
check_include_file(windows.h HAVE_WINDOWS_H)
if(HAVE_INTTYPES_H)
# ShivaVG needs inttypes.h
add_definitions(-DHAVE_INTTYPES_H)
endif()
if(ENABLE_RTI)
find_package(PkgConfig)
if(PKG_CONFIG_FOUND)
SET(ENV{PKG_CONFIG_PATH} "${CMAKE_INSTALL_PREFIX}/${_LIBDIR_DEFAULT}/pkgconfig:$ENV{PKG_CONFIG_PATH}")
pkg_check_modules(RTI hla-rti13)
endif(PKG_CONFIG_FOUND)
if(RTI_FOUND)
SET(RTI_INCLUDE_DIR "${RTI_INCLUDE_DIRS}")
message(STATUS "RTI: ENABLED")
else()
message(STATUS "RTI: DISABLED")
endif(RTI_FOUND)
else()
message(STATUS "RTI: DISABLED")
endif(ENABLE_RTI)
if(ENABLE_GDAL)
find_package(GDAL 2.0.0 REQUIRED)
if (GDAL_FOUND)
include_directories(${GDAL_INCLUDE_DIR})
endif(GDAL_FOUND)
endif(ENABLE_GDAL)
check_function_exists(gettimeofday HAVE_GETTIMEOFDAY)
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 (NOT MSVC)
check_function_exists(timegm HAVE_TIMEGM)
if (NOT HAVE_TIMEGM)
message(FATAL_ERROR "Non-Windows platforms must support timegm()")
endif()
endif()
if(HAVE_UNISTD_H)
set(CMAKE_REQUIRED_INCLUDES ${CMAKE_INCLUDE_PATH})
check_cxx_source_compiles(
"#include <unistd.h>
#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 <dlfcn.h>
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 <cstdlib>
int main() { return std::isnan(0.0);} "
HAVE_STD_ISNAN)
if (NOT ${HAVE_STD_ISNAN})
message(FATAL_ERROR "Your compiler lacks C++11 std::isnan, please update it")
endif()
if(CMAKE_COMPILER_IS_GNUCXX)
set(WARNING_FLAGS_CXX "-Wall -fPIC")
set(WARNING_FLAGS_C "-Wall -fPIC")
if (CMAKE_VERSION VERSION_LESS 3.1)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
endif()
if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.4)
message(WARNING "GCC 4.4 will be required soon, please upgrade")
endif()
if(ENABLE_SIMD)
if (X86 OR X86_64)
set(CMAKE_C_FLAGS_RELEASE "-O3 -msse2 -mfpmath=sse")
set(CMAKE_CXX_FLAGS_RELEASE "-O3 -msse2 -mfpmath=sse")
endif()
endif()
# certain GCC versions don't provide the atomic builds, and hence
# require is to provide them in SGAtomic.cxx
set(CMAKE_REQUIRED_INCLUDES ${CMAKE_INCLUDE_PATH})
check_cxx_source_compiles(
"int main() { unsigned mValue; return __sync_add_and_fetch(&mValue, 1); }"
GCC_ATOMIC_BUILTINS_FOUND)
endif(CMAKE_COMPILER_IS_GNUCXX)
if (CLANG)
# Boost redeclares class members
set(WARNING_FLAGS_CXX "-Wall -fPIC -Wno-overloaded-virtual -Wno-redeclared-class-member")
set(WARNING_FLAGS_C "-Wall -fPIC")
set(CMAKE_XCODE_ATTRIBUTE_CLANG_CXX_LIBRARY "libc++")
# fix Boost compilation :(
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++")
if (CMAKE_VERSION VERSION_LESS 3.1)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
endif()
if(ENABLE_SIMD)
if (X86 OR X86_64)
set(CMAKE_C_FLAGS_RELEASE "-O3 -msse2 -mfpmath=sse")
set(CMAKE_CXX_FLAGS_RELEASE "-O3 -msse2 -mfpmath=sse")
endif()
endif()
endif()
if (ENABLE_OPENMP)
find_package(OpenMP)
if(OPENMP_FOUND)
message(STATUS "OpenMP: ENABLED")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OpenMP_C_FLAGS}")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")
else()
message(STATUS "OpenMP: NOT FOUND")
endif()
else()
message(STATUS "OpenMP: DISABLED")
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 " ${WARNING_FLAGS_CXX} -Wno-unused-local-typedefs")
endif()
endif()
if(WIN32)
if(MINGW)
add_definitions(-D_WIN32_WINNT=0x501)
endif()
if(MSVC)
set(MSVC_FLAGS "-DWIN32 -DNOMINMAX -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D__CRT_NONSTDC_NO_WARNINGS /MP")
if(ENABLE_SIMD)
if (X86)
SET(CMAKE_C_FLAGS_RELEASE "/O2 /arch:SSE /arch:SSE2")
SET(CMAKE_CXX_FLAGS_RELEASE "/O2 /arch:SSE /arch:SSE2")
else()
SET(CMAKE_C_FLAGS_RELEASE "/O2")
SET(CMAKE_CXX_FLAGS_RELEASE "/O2")
endif()
endif()
if (NOT OSG_FSTREAM_EXPORT_FIXED)
message(STATUS "For better linking performance, use OSG with patched fstream header")
# needed to avoid link errors on multiply-defined standard C++
# symbols. Suspect this may be an OSG-DB export bug
set( MSVC_LD_FLAGS "/FORCE:MULTIPLE" )
endif ()
if (${MSVC_VERSION} GREATER 1899)
# needed for debug builds with VS2015
set( MSVC_FLAGS "${MSVC_FLAGS} /bigobj" )
endif()
endif(MSVC)
# assumed on Windows
set(HAVE_GETLOCALTIME 1)
set( WINSOCK_LIBRARY "ws2_32.lib" )
set( SHLWAPI_LIBRARY "Shlwapi.lib" )
set( RT_LIBRARY "winmm" )
endif(WIN32)
set(CMAKE_C_FLAGS "${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 ${PROJECT_BINARY_DIR}/simgear)
add_definitions(-DHAVE_CONFIG_H)
# configure a header file to pass some of the CMake settings
# to the source code
configure_file (
"${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}
${SHLWAPI_LIBRARY}
${RT_LIBRARY}
${DL_LIBRARY}
${COCOA_LIBRARY}
${CURL_LIBRARIES}
${GDAL_LIBRARY})
set(TEST_LIBS SimGearCore ${TEST_LIBS_INTERNAL_CORE})
if(NOT SIMGEAR_HEADLESS)
set(TEST_LIBS SimGearScene ${OPENGL_LIBRARIES} ${TEST_LIBS})
endif()
install (FILES ${PROJECT_BINARY_DIR}/simgear/simgear_config.h DESTINATION include/simgear/)
if(ENABLE_DNS)
if(SYSTEM_UDNS)
message(STATUS "Requested to use system udns library, forcing SIMGEAR_SHARED to true")
set(SIMGEAR_SHARED ON)
find_package(Udns REQUIRED)
else()
message(STATUS "DNS resolver: ENABLED")
include_directories(3rdparty/udns)
endif()
else()
message(STATUS "DNS resolver: DISABLED")
endif()
add_subdirectory(3rdparty)
add_subdirectory(simgear)
#-----------------------------------------------------------------------------
### Export stuff, see https://cmake.org/cmake/help/v3.2/manual/cmake-packages.7.html#creating-packages
#-----------------------------------------------------------------------------
generate_export_header(SimGearCore)
if(NOT SIMGEAR_HEADLESS)
generate_export_header(SimGearScene)
endif()
include(CMakePackageConfigHelpers)
write_basic_package_version_file(
"${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 ${CMAKE_INSTALL_LIBDIR}/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")