uvw/CMakeLists.txt
2023-08-21 13:41:45 +02:00

268 lines
7.2 KiB
CMake

#
# uvw
#
cmake_minimum_required(VERSION 3.13)
#
# Building in-tree is not allowed (we take care of your craziness).
#
if(CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR)
message(FATAL_ERROR "Prevented in-tree built. Please create a build directory outside of the source code and call cmake from there. Thank you.")
endif()
#
# Project configuration
#
set(UVW_VERSION_MAJOR 3)
set(UVW_VERSION_MINOR 3)
set(UVW_VERSION_PATCH 0)
project(
uvw
VERSION ${UVW_VERSION_MAJOR}.${UVW_VERSION_MINOR}.${UVW_VERSION_PATCH}
DESCRIPTION "Header-only, event based, tiny and easy to use libuv wrapper in modern C++ - now available also as static library!"
HOMEPAGE_URL "https://github.com/skypjack/uvw"
LANGUAGES C CXX
)
if(NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE Debug)
endif()
option(USE_LIBCPP "Use libc++ by adding -stdlib=libc++ flag if available." ON)
option(USE_ASAN "Use address sanitizer by adding -fsanitize=address -fno-omit-frame-pointer flags" OFF)
option(USE_UBSAN "Use address sanitizer by adding -fsanitize=undefined -fno-sanitize-recover=all -fno-omit-frame-pointer flags" OFF)
option(BUILD_UVW_LIBS "Prepare targets for static library rather than for a header-only library." OFF)
option(BUILD_UVW_SHARED_LIB "Prepare targets for shared library rather than for a header-only library." OFF)
option(FIND_LIBUV "Try finding libuv library development files in the system" OFF)
if(BUILD_UVW_SHARED_LIB)
set(BUILD_UVW_LIBS BOOL:ON)
endif()
#
# Compiler stuff
#
if(NOT WIN32 AND USE_LIBCPP)
include(CheckCXXSourceCompiles)
include(CMakePushCheckState)
cmake_push_check_state()
set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -stdlib=libc++")
check_cxx_source_compiles("
#include<type_traits>
int main() { return std::is_same_v<int, char>; }
" HAS_LIBCPP)
if(NOT HAS_LIBCPP)
message(WARNING "The option USE_LIBCPP is set (by default) but libc++ is not available. The flag will not be added to the target.")
endif()
cmake_pop_check_state()
endif()
# Required minimal libuv version
set(LIBUV_VERSION 1.46.0)
function(fetch_libuv)
if (FETCH_LIBUV)
include(FetchContent)
FetchContent_Declare(
libuv
GIT_REPOSITORY https://github.com/libuv/libuv.git
GIT_TAG "v${LIBUV_VERSION}"
GIT_SHALLOW 1
)
FetchContent_GetProperties(libuv)
if(NOT libuv_POPULATED)
FetchContent_Populate(libuv)
add_subdirectory(${libuv_SOURCE_DIR} ${libuv_BINARY_DIR} EXCLUDE_FROM_ALL)
endif()
if(BUILD_UVW_SHARED_LIB)
add_library(uv::uv-shared ALIAS uv)
set_target_properties(uv PROPERTIES POSITION_INDEPENDENT_CODE 1)
else()
add_library(uv::uv-static ALIAS uv_a)
set_target_properties(uv_a PROPERTIES POSITION_INDEPENDENT_CODE 1)
endif()
endif(FETCH_LIBUV)
endfunction()
function(use_libuv)
set(FETCH_LIBUV_DEFAULT ON)
if (FIND_LIBUV)
find_package(libuv ${LIBUV_VERSION} QUIET)
if (libuv_FOUND)
add_library(uv::uv-shared ALIAS uv)
set(FETCH_LIBUV_DEFAULT OFF)
message(STATUS "libuv ${libuv_VERSION} found via cmake")
else(libuv_FOUND)
find_package(PkgConfig QUIET)
if (PkgConfig_FOUND)
pkg_check_modules(libuv IMPORTED_TARGET libuv>=${LIBUV_VERSION})
if (libuv_FOUND)
add_library(uv::uv-shared ALIAS PkgConfig::libuv)
set(FETCH_LIBUV_DEFAULT OFF)
message(STATUS "libuv ${libuv_VERSION} found via pkg-config")
endif(libuv_FOUND)
endif(PkgConfig_FOUND)
endif(libuv_FOUND)
endif(FIND_LIBUV)
option(FETCH_LIBUV "Fetch the libuv repo using CMake FetchContent facility" ${FETCH_LIBUV_DEFAULT})
fetch_libuv()
endfunction()
#
# Add uvw target
#
include(GNUInstallDirs)
if(BUILD_UVW_LIBS)
use_libuv()
add_subdirectory(src)
file(GLOB HEADERS src/uvw/*.h src/uvw/*.hpp)
else()
add_library(uvw INTERFACE)
add_library(uvw::uvw ALIAS uvw)
target_compile_features(uvw INTERFACE cxx_std_17)
target_include_directories(
uvw
INTERFACE
$<BUILD_INTERFACE:${uvw_SOURCE_DIR}/src>
$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
)
if(USE_ASAN)
target_compile_options(uvw INTERFACE $<$<CONFIG:Debug>:-fsanitize=address -fno-omit-frame-pointer>)
target_link_libraries(uvw INTERFACE $<$<CONFIG:Debug>:-fsanitize=address>)
endif()
if(USE_UBSAN)
target_compile_options(uvw INTERFACE $<$<CONFIG:Debug>:-fsanitize=undefined -fno-sanitize-recover=all -fno-omit-frame-pointer>)
target_link_libraries(uvw INTERFACE $<$<CONFIG:Debug>:-fsanitize=undefined>)
endif()
if(HAS_LIBCPP)
target_compile_options(uvw BEFORE INTERFACE -stdlib=libc++)
endif()
file(GLOB HEADERS src/uvw/*.h src/uvw/*.hpp src/uvw/*.cpp)
endif()
#
# Install targets
#
install(
FILES ${HEADERS}
COMPONENT ${PROJECT_NAME}
DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/uvw
PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ
)
install(
FILES src/uvw.hpp
COMPONENT ${PROJECT_NAME}
DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ
)
#
# Install targets
#
if (BUILD_UVW_LIBS)
set_target_properties(
uvw PROPERTIES
VERSION ${UVW_VERSION_MAJOR}.${UVW_VERSION_MINOR}.${UVW_VERSION_PATCH}
SOVERSION ${UVW_VERSION_MAJOR}
)
endif()
install(
EXPORT uvwConfig
NAMESPACE uvw::
DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/uvw
)
install(
TARGETS uvw
EXPORT uvwConfig
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
)
if(FETCH_LIBUV AND BUILD_UVW_LIBS)
# libuv is only fetched when both above conditions are true
install(DIRECTORY ${libuv_SOURCE_DIR}/include/ DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/uvw/uv/include)
if (BUILD_UVW_SHARED_LIB)
install(TARGETS uv EXPORT uvwConfig LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}/uvw)
else()
install(TARGETS uv_a EXPORT uvwConfig ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}/uvw)
endif()
endif(FETCH_LIBUV AND BUILD_UVW_LIBS)
export(EXPORT uvwConfig)
### Testing
option(BUILD_TESTING "Enable testing with ctest." OFF)
if(BUILD_TESTING)
option(FIND_GTEST_PACKAGE "Enable finding gtest package." OFF)
if (NOT BUILD_UVW_LIBS)
use_libuv()
endif()
enable_testing()
add_subdirectory(test)
endif()
#
# Documentation
#
option(BUILD_DOCS "Enable building with documentation." OFF)
if(BUILD_DOCS)
find_package(Doxygen 1.8)
if(DOXYGEN_FOUND)
add_subdirectory(docs)
endif()
endif()
#
# AOB
#
add_custom_target(
uvw_aob
SOURCES
.github/workflows/build-macos.yml
.github/workflows/build-ubuntu-20.04.yml
.github/workflows/build-ubuntu-latest.yml
.github/workflows/build-win.yml
.github/workflows/coverage.yml
.github/workflows/deploy.yml
.github/FUNDING.yml
AUTHORS
LICENSE
README.md
TODO
)