Files
sdbus-cpp/cmake/LibsystemdExternalProject.cmake
2022-06-27 15:01:06 +02:00

66 lines
3.0 KiB
CMake

find_program(MESON meson)
find_program(NINJA ninja)
find_program(GPERF gperf)
if((NOT MESON) OR (NOT NINJA))
message(FATAL_ERROR "Meson and Ninja are required to build libsystemd")
endif()
if(NOT GPERF)
message(WARNING "gperf was not found, libsystemd configuration may fail")
endif()
find_library(GLIBC_RT_LIBRARY rt)
find_package(PkgConfig REQUIRED)
pkg_check_modules(MOUNT mount)
pkg_check_modules(CAP REQUIRED libcap)
if (NOT CAP_FOUND)
find_library(CAP_LIBRARIES cap) # Compat with Ubuntu 14.04 which ships libcap w/o .pc file
endif()
set(LIBSYSTEMD_VERSION "242" CACHE STRING "libsystemd version (>=239) to build and incorporate into libsdbus-c++")
set(LIBSYSTEMD_EXTRA_CONFIG_OPTS "" CACHE STRING "Additional configuration options to be passed as-is to libsystemd build system")
if(NOT CMAKE_BUILD_TYPE)
set(LIBSYSTEMD_BUILD_TYPE "plain")
elseif(CMAKE_BUILD_TYPE STREQUAL "Debug")
set(LIBSYSTEMD_BUILD_TYPE "debug")
else()
set(LIBSYSTEMD_BUILD_TYPE "release")
endif()
if(LIBSYSTEMD_VERSION LESS "239")
message(FATAL_ERROR "Only libsystemd version >=239 can be built as static part of sdbus-c++")
endif()
if(LIBSYSTEMD_VERSION GREATER "240")
set(BUILD_VERSION_H ${NINJA} -C <BINARY_DIR> version.h)
endif()
message(STATUS "Building with embedded libsystemd v${LIBSYSTEMD_VERSION}")
include(ExternalProject)
ExternalProject_Add(LibsystemdBuildProject
PREFIX libsystemd-v${LIBSYSTEMD_VERSION}
GIT_REPOSITORY https://github.com/systemd/systemd-stable.git
GIT_TAG v${LIBSYSTEMD_VERSION}-stable
GIT_SHALLOW 1
UPDATE_COMMAND ""
CONFIGURE_COMMAND ${CMAKE_COMMAND} -E remove <BINARY_DIR>/*
COMMAND ${MESON} --prefix=<INSTALL_DIR> --buildtype=${LIBSYSTEMD_BUILD_TYPE} -Dstatic-libsystemd=pic -Dselinux=false <SOURCE_DIR> <BINARY_DIR> ${LIBSYSTEMD_EXTRA_CONFIG_OPTS}
BUILD_COMMAND ${BUILD_VERSION_H}
COMMAND ${NINJA} -C <BINARY_DIR> libsystemd.a
BUILD_ALWAYS 0
INSTALL_COMMAND ${CMAKE_COMMAND} -E copy_directory <SOURCE_DIR>/src/systemd <INSTALL_DIR>/include/systemd
LOG_DOWNLOAD 1 LOG_UPDATE 1 LOG_CONFIGURE 1 LOG_BUILD 1
BUILD_BYPRODUCTS <BINARY_DIR>/libsystemd.a)
ExternalProject_Get_property(LibsystemdBuildProject SOURCE_DIR)
ExternalProject_Get_property(LibsystemdBuildProject BINARY_DIR)
ExternalProject_Get_property(LibsystemdBuildProject INSTALL_DIR)
add_library(Systemd::Libsystemd STATIC IMPORTED)
set_target_properties(Systemd::Libsystemd PROPERTIES IMPORTED_LOCATION ${BINARY_DIR}/libsystemd.a)
file(MAKE_DIRECTORY ${INSTALL_DIR}/include/systemd) # Trick for CMake to stop complaining about non-existent ${INSTALL_DIR}/include directory
target_include_directories(Systemd::Libsystemd INTERFACE ${INSTALL_DIR}/include)
target_link_libraries(Systemd::Libsystemd INTERFACE ${CAP_LIBRARIES} ${GLIBC_RT_LIBRARY} ${MOUNT_LIBRARIES})