mirror of
https://github.com/fmtlib/fmt.git
synced 2024-12-24 21:16:56 +00:00
6d21fc43b9
For the consumer it should not matter if fmt has been added to the project as subdirectory or via find_package. With the alias targets the library can be always imported via fmt::fmt.
222 lines
7.7 KiB
CMake
222 lines
7.7 KiB
CMake
message(STATUS "CMake version: ${CMAKE_VERSION}")
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cmake_minimum_required(VERSION 2.8.12)
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# Determine if fmt is built as a subproject (using add_subdirectory)
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# or if it is the master project.
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set(MASTER_PROJECT OFF)
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if (CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
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set(MASTER_PROJECT ON)
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endif ()
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# Joins arguments and places the results in ${result_var}.
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function(join result_var)
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set(result )
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foreach (arg ${ARGN})
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set(result "${result}${arg}")
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endforeach ()
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set(${result_var} "${result}" PARENT_SCOPE)
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endfunction()
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# Set the default CMAKE_BUILD_TYPE to Release.
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# This should be done before the project command since the latter can set
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# CMAKE_BUILD_TYPE itself (it does so for nmake).
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if (NOT CMAKE_BUILD_TYPE)
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join(doc "Choose the type of build, options are: None(CMAKE_CXX_FLAGS or "
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"CMAKE_C_FLAGS used) Debug Release RelWithDebInfo MinSizeRel.")
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set(CMAKE_BUILD_TYPE Release CACHE STRING ${doc})
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endif ()
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option(FMT_PEDANTIC "Enable extra warnings and expensive tests." OFF)
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# Options that control generation of various targets.
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option(FMT_DOC "Generate the doc target." ${MASTER_PROJECT})
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option(FMT_INSTALL "Generate the install target." ${MASTER_PROJECT})
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option(FMT_TEST "Generate the test target." ${MASTER_PROJECT})
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option(FMT_USE_CPP14 "Enable the addition of C++14 compiler flags." ON)
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project(FMT)
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# Get version from core.h
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file(READ include/fmt/core.h core_h)
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if (NOT core_h MATCHES "FMT_VERSION ([0-9]+)([0-9][0-9])([0-9][0-9])")
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message(FATAL_ERROR "Cannot get FMT_VERSION from core.h.")
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endif ()
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# Use math to skip leading zeros if any.
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math(EXPR CPACK_PACKAGE_VERSION_MAJOR ${CMAKE_MATCH_1})
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math(EXPR CPACK_PACKAGE_VERSION_MINOR ${CMAKE_MATCH_2})
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math(EXPR CPACK_PACKAGE_VERSION_PATCH ${CMAKE_MATCH_3})
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join(FMT_VERSION ${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}.
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${CPACK_PACKAGE_VERSION_PATCH})
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message(STATUS "Version: ${FMT_VERSION}")
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message(STATUS "Build type: ${CMAKE_BUILD_TYPE}")
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set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
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set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH}
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"${CMAKE_CURRENT_SOURCE_DIR}/support/cmake")
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include(cxx14)
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if (CMAKE_COMPILER_IS_GNUCXX OR (CMAKE_CXX_COMPILER_ID MATCHES "Clang"))
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set(PEDANTIC_COMPILE_FLAGS -Wall -Wextra -Wshadow -pedantic)
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endif ()
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if (MASTER_PROJECT AND CMAKE_GENERATOR MATCHES "Visual Studio")
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# If Microsoft SDK is installed create script run-msbuild.bat that
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# calls SetEnv.cmd to set up build environment and runs msbuild.
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# It is useful when building Visual Studio projects with the SDK
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# toolchain rather than Visual Studio.
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include(FindSetEnv)
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if (WINSDK_SETENV)
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set(MSBUILD_SETUP "call \"${WINSDK_SETENV}\"")
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endif ()
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# Set FrameworkPathOverride to get rid of MSB3644 warnings.
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set(netfxpath "C:\\Program Files\\Reference Assemblies\\Microsoft\\Framework\\.NETFramework\\v4.0")
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file(WRITE run-msbuild.bat "
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${MSBUILD_SETUP}
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${CMAKE_MAKE_PROGRAM} -p:FrameworkPathOverride=\"${netfxpath}\" %*")
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endif ()
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include(CheckSymbolExists)
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if (WIN32)
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check_symbol_exists(open io.h HAVE_OPEN)
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else ()
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check_symbol_exists(open fcntl.h HAVE_OPEN)
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endif ()
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function(add_headers VAR)
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set(headers ${${VAR}})
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foreach (header ${ARGN})
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set(headers ${headers} include/fmt/${header})
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endforeach()
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set(${VAR} ${headers} PARENT_SCOPE)
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endfunction()
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# Define the fmt library, its includes and the needed defines.
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# format.cc is added to FMT_HEADERS for the header-only configuration.
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add_headers(FMT_HEADERS core.h format.h format.cc locale.h ostream.h printf.h
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time.h)
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if (HAVE_OPEN)
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add_headers(FMT_HEADERS posix.h)
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add_headers(FMT_SOURCES posix.cc)
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endif ()
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add_library(fmt ${FMT_SOURCES} ${FMT_HEADERS} README.rst ChangeLog.rst)
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add_library(fmt::fmt ALIAS fmt)
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# Starting with CMake 3.1 the CXX_STANDARD property can be used instead.
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# Don't export -std since it may break projects that use other standards.
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target_compile_options(fmt PRIVATE ${CPP14_FLAG})
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if (FMT_PEDANTIC)
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target_compile_options(fmt PRIVATE ${PEDANTIC_COMPILE_FLAGS})
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endif ()
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target_include_directories(fmt PUBLIC
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$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
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$<INSTALL_INTERFACE:include>)
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set_target_properties(fmt PROPERTIES
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VERSION ${FMT_VERSION} SOVERSION ${CPACK_PACKAGE_VERSION_MAJOR}
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DEBUG_POSTFIX d)
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if (BUILD_SHARED_LIBS)
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if (UNIX AND NOT APPLE)
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# Fix rpmlint warning:
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# unused-direct-shlib-dependency /usr/lib/libformat.so.1.1.0 /lib/libm.so.6.
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target_link_libraries(fmt -Wl,--as-needed)
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endif ()
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target_compile_definitions(fmt PRIVATE FMT_EXPORT INTERFACE FMT_SHARED)
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endif ()
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# Additionally define a header-only library when CMake is new enough.
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if (CMAKE_VERSION VERSION_GREATER 3.1.0 OR CMAKE_VERSION VERSION_EQUAL 3.1.0)
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add_library(fmt-header-only INTERFACE)
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add_library(fmt::fmt-header-only ALIAS fmt-header-only)
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target_compile_definitions(fmt-header-only INTERFACE FMT_HEADER_ONLY=1)
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target_include_directories(fmt-header-only INTERFACE
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$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
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$<INSTALL_INTERFACE:include>)
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endif ()
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# Install targets.
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if (FMT_INSTALL)
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include(GNUInstallDirs)
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include(CMakePackageConfigHelpers)
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set(FMT_CMAKE_DIR ${CMAKE_INSTALL_LIBDIR}/cmake/fmt CACHE STRING
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"Installation directory for cmake files, relative to ${CMAKE_INSTALL_PREFIX}.")
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set(version_config ${PROJECT_BINARY_DIR}/fmt-config-version.cmake)
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set(project_config ${PROJECT_BINARY_DIR}/fmt-config.cmake)
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set(targets_export_name fmt-targets)
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set (INSTALL_TARGETS fmt)
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if (TARGET fmt-header-only)
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set(INSTALL_TARGETS ${INSTALL_TARGETS} fmt-header-only)
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endif ()
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set(FMT_LIB_DIR ${CMAKE_INSTALL_LIBDIR} CACHE STRING
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"Installation directory for libraries, relative to ${CMAKE_INSTALL_PREFIX}.")
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set(FMT_INC_DIR ${CMAKE_INSTALL_INCLUDEDIR}/fmt CACHE STRING
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"Installation directory for include files, relative to ${CMAKE_INSTALL_PREFIX}.")
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# Generate the version, config and target files into the build directory.
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write_basic_package_version_file(
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${version_config}
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VERSION ${FMT_VERSION}
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COMPATIBILITY AnyNewerVersion)
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configure_package_config_file(
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${PROJECT_SOURCE_DIR}/support/cmake/fmt-config.cmake.in
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${project_config}
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INSTALL_DESTINATION ${FMT_CMAKE_DIR})
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# Use a namespace because CMake provides better diagnostics for namespaced
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# imported targets.
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export(TARGETS ${INSTALL_TARGETS} NAMESPACE fmt::
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FILE ${PROJECT_BINARY_DIR}/${targets_export_name}.cmake)
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# Install version, config and target files.
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install(
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FILES ${project_config} ${version_config}
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DESTINATION ${FMT_CMAKE_DIR})
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install(EXPORT ${targets_export_name} DESTINATION ${FMT_CMAKE_DIR},
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NAMESPACE fmt::)
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# Install the library and headers.
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install(TARGETS ${INSTALL_TARGETS} EXPORT ${targets_export_name}
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DESTINATION ${FMT_LIB_DIR})
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install(FILES ${FMT_HEADERS} DESTINATION ${FMT_INC_DIR})
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endif ()
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if (FMT_DOC)
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add_subdirectory(doc)
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endif ()
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if (FMT_TEST)
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enable_testing()
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add_subdirectory(test)
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endif ()
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set(gitignore ${PROJECT_SOURCE_DIR}/.gitignore)
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if (MASTER_PROJECT AND EXISTS ${gitignore})
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# Get the list of ignored files from .gitignore.
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file (STRINGS ${gitignore} lines)
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LIST(REMOVE_ITEM lines /doc/html)
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foreach (line ${lines})
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string(REPLACE "." "[.]" line "${line}")
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string(REPLACE "*" ".*" line "${line}")
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set(ignored_files ${ignored_files} "${line}$" "${line}/")
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endforeach ()
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set(ignored_files ${ignored_files}
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/.git /breathe /format-benchmark sphinx/ .buildinfo .doctrees)
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set(CPACK_SOURCE_GENERATOR ZIP)
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set(CPACK_SOURCE_IGNORE_FILES ${ignored_files})
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set(CPACK_SOURCE_PACKAGE_FILE_NAME fmt-${FMT_VERSION})
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set(CPACK_PACKAGE_NAME fmt)
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set(CPACK_RESOURCE_FILE_README ${PROJECT_SOURCE_DIR}/README.rst)
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include(CPack)
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endif ()
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