fmt/CMakeLists.txt
Jan Tojnar 78f041ab5b build: Fix installation paths
It is not generally true that `CMAKE_INSTALL_<dir>` variables are relative paths:

https://github.com/jtojnar/cmake-snips#concatenating-paths-when-building-pkg-config-files
2020-05-01 10:27:24 -07:00

343 lines
12 KiB
CMake

cmake_minimum_required(VERSION 3.1.0)
# Use newer policies if available, up to most recent tested version of CMake.
if(${CMAKE_VERSION} VERSION_LESS 3.11)
cmake_policy(VERSION ${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION})
else()
cmake_policy(VERSION 3.11)
endif()
# Determine if fmt is built as a subproject (using add_subdirectory)
# or if it is the master project.
set(MASTER_PROJECT OFF)
if (CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
set(MASTER_PROJECT ON)
message(STATUS "CMake version: ${CMAKE_VERSION}")
endif ()
# Joins arguments and places the results in ${result_var}.
function(join result_var)
set(result )
foreach (arg ${ARGN})
set(result "${result}${arg}")
endforeach ()
set(${result_var} "${result}" PARENT_SCOPE)
endfunction()
# Sets a cache variable with a docstring joined from multiple arguments:
# set(<variable> <value>... CACHE <type> <docstring>...)
# This allows splitting a long docstring for readability.
function(set_verbose)
cmake_parse_arguments(SET_VERBOSE "" "" "CACHE" ${ARGN})
list(GET SET_VERBOSE_CACHE 0 type)
list(REMOVE_AT SET_VERBOSE_CACHE 0)
join(doc ${SET_VERBOSE_CACHE})
set(${SET_VERBOSE_UNPARSED_ARGUMENTS} CACHE ${type} ${doc})
endfunction()
# Set the default CMAKE_BUILD_TYPE to Release.
# This should be done before the project command since the latter can set
# CMAKE_BUILD_TYPE itself (it does so for nmake).
if (MASTER_PROJECT AND NOT CMAKE_BUILD_TYPE)
set_verbose(CMAKE_BUILD_TYPE Release CACHE STRING
"Choose the type of build, options are: None(CMAKE_CXX_FLAGS or "
"CMAKE_C_FLAGS used) Debug Release RelWithDebInfo MinSizeRel.")
endif ()
option(FMT_PEDANTIC "Enable extra warnings and expensive tests." OFF)
option(FMT_WERROR "Halt the compilation with an error on compiler warnings."
OFF)
# Options that control generation of various targets.
option(FMT_DOC "Generate the doc target." ${MASTER_PROJECT})
option(FMT_INSTALL "Generate the install target." ${MASTER_PROJECT})
option(FMT_TEST "Generate the test target." ${MASTER_PROJECT})
option(FMT_FUZZ "Generate the fuzz target." OFF)
option(FMT_CUDA_TEST "Generate the cuda-test target." OFF)
option(FMT_OS "Include core requiring OS (Windows/Posix) " ON)
project(FMT CXX)
# Get version from core.h
file(READ include/fmt/core.h core_h)
if (NOT core_h MATCHES "FMT_VERSION ([0-9]+)([0-9][0-9])([0-9][0-9])")
message(FATAL_ERROR "Cannot get FMT_VERSION from core.h.")
endif ()
# Use math to skip leading zeros if any.
math(EXPR CPACK_PACKAGE_VERSION_MAJOR ${CMAKE_MATCH_1})
math(EXPR CPACK_PACKAGE_VERSION_MINOR ${CMAKE_MATCH_2})
math(EXPR CPACK_PACKAGE_VERSION_PATCH ${CMAKE_MATCH_3})
join(FMT_VERSION ${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}.
${CPACK_PACKAGE_VERSION_PATCH})
message(STATUS "Version: ${FMT_VERSION}")
message(STATUS "Build type: ${CMAKE_BUILD_TYPE}")
if (NOT CMAKE_RUNTIME_OUTPUT_DIRECTORY)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
endif ()
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH}
"${CMAKE_CURRENT_SOURCE_DIR}/support/cmake")
include(cxx14)
include(CheckCXXCompilerFlag)
include(JoinPaths)
list(FIND CMAKE_CXX_COMPILE_FEATURES "cxx_variadic_templates" index)
if (${index} GREATER -1)
# Use cxx_variadic_templates instead of more appropriate cxx_std_11 for
# compatibility with older CMake versions.
set(FMT_REQUIRED_FEATURES cxx_variadic_templates)
endif ()
message(STATUS "Required features: ${FMT_REQUIRED_FEATURES}")
if (CMAKE_CXX_COMPILER_ID MATCHES "GNU")
set(PEDANTIC_COMPILE_FLAGS -pedantic-errors -Wall -Wextra -pedantic
-Wold-style-cast -Wundef
-Wredundant-decls -Wwrite-strings -Wpointer-arith
-Wcast-qual -Wformat=2 -Wmissing-include-dirs
-Wcast-align -Wnon-virtual-dtor
-Wctor-dtor-privacy -Wdisabled-optimization
-Winvalid-pch -Woverloaded-virtual
-Wconversion -Wswitch-enum
-Wno-ctor-dtor-privacy -Wno-format-nonliteral -Wno-shadow)
if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.6)
set(PEDANTIC_COMPILE_FLAGS ${PEDANTIC_COMPILE_FLAGS} -Wnoexcept
-Wno-dangling-else -Wno-unused-local-typedefs)
endif ()
if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.0)
set(PEDANTIC_COMPILE_FLAGS ${PEDANTIC_COMPILE_FLAGS} -Wdouble-promotion
-Wtrampolines -Wzero-as-null-pointer-constant -Wuseless-cast
-Wvector-operation-performance -Wsized-deallocation)
endif ()
if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 6.0)
set(PEDANTIC_COMPILE_FLAGS ${PEDANTIC_COMPILE_FLAGS} -Wshift-overflow=2
-Wnull-dereference -Wduplicated-cond)
endif ()
set(WERROR_FLAG -Werror)
endif ()
if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
set(PEDANTIC_COMPILE_FLAGS -Wall -Wextra -pedantic -Wconversion
-Wno-sign-conversion -Wdeprecated -Wweak-vtables)
check_cxx_compiler_flag(-Wzero-as-null-pointer-constant HAS_NULLPTR_WARNING)
if (HAS_NULLPTR_WARNING)
set(PEDANTIC_COMPILE_FLAGS ${PEDANTIC_COMPILE_FLAGS}
-Wzero-as-null-pointer-constant)
endif ()
set(WERROR_FLAG -Werror)
endif ()
if (MSVC)
set(PEDANTIC_COMPILE_FLAGS /W3)
set(WERROR_FLAG /WX)
endif ()
if (MASTER_PROJECT AND CMAKE_GENERATOR MATCHES "Visual Studio")
# If Microsoft SDK is installed create script run-msbuild.bat that
# calls SetEnv.cmd to set up build environment and runs msbuild.
# It is useful when building Visual Studio projects with the SDK
# toolchain rather than Visual Studio.
include(FindSetEnv)
if (WINSDK_SETENV)
set(MSBUILD_SETUP "call \"${WINSDK_SETENV}\"")
endif ()
# Set FrameworkPathOverride to get rid of MSB3644 warnings.
join(netfxpath
"C:\\Program Files\\Reference Assemblies\\Microsoft\\Framework\\"
".NETFramework\\v4.0")
file(WRITE run-msbuild.bat "
${MSBUILD_SETUP}
${CMAKE_MAKE_PROGRAM} -p:FrameworkPathOverride=\"${netfxpath}\" %*")
endif ()
set(strtod_l_headers stdlib.h)
if (APPLE)
set(strtod_l_headers ${strtod_l_headers} xlocale.h)
endif ()
include(CheckSymbolExists)
if (WIN32)
check_symbol_exists(_strtod_l "${strtod_l_headers}" HAVE_STRTOD_L)
else ()
check_symbol_exists(strtod_l "${strtod_l_headers}" HAVE_STRTOD_L)
endif ()
function(add_headers VAR)
set(headers ${${VAR}})
foreach (header ${ARGN})
set(headers ${headers} include/fmt/${header})
endforeach()
set(${VAR} ${headers} PARENT_SCOPE)
endfunction()
# Define the fmt library, its includes and the needed defines.
add_headers(FMT_HEADERS chrono.h color.h compile.h core.h format.h format-inl.h
locale.h os.h ostream.h posix.h printf.h ranges.h)
if (FMT_OS)
set(FMT_SOURCES src/format.cc src/os.cc)
else()
set(FMT_SOURCES src/format.cc)
endif ()
add_library(fmt ${FMT_SOURCES} ${FMT_HEADERS} README.rst ChangeLog.rst)
add_library(fmt::fmt ALIAS fmt)
if (HAVE_STRTOD_L)
target_compile_definitions(fmt PUBLIC FMT_LOCALE)
endif ()
if (FMT_WERROR)
target_compile_options(fmt PRIVATE ${WERROR_FLAG})
endif ()
if (FMT_PEDANTIC)
target_compile_options(fmt PRIVATE ${PEDANTIC_COMPILE_FLAGS})
endif ()
target_compile_features(fmt INTERFACE ${FMT_REQUIRED_FEATURES})
target_include_directories(fmt PUBLIC
$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
$<INSTALL_INTERFACE:include>)
set(FMT_DEBUG_POSTFIX d CACHE STRING "Debug library postfix.")
set_target_properties(fmt PROPERTIES
VERSION ${FMT_VERSION} SOVERSION ${CPACK_PACKAGE_VERSION_MAJOR}
DEBUG_POSTFIX "${FMT_DEBUG_POSTFIX}")
# Set FMT_LIB_NAME for pkg-config fmt.pc. We cannot use the OUTPUT_NAME target
# property because it's not set by default.
set(FMT_LIB_NAME fmt)
if (CMAKE_BUILD_TYPE STREQUAL "Debug")
set(FMT_LIB_NAME ${FMT_LIB_NAME}${FMT_DEBUG_POSTFIX})
endif ()
if (BUILD_SHARED_LIBS)
if (UNIX AND NOT APPLE AND NOT ${CMAKE_SYSTEM_NAME} MATCHES "SunOS")
# Fix rpmlint warning:
# unused-direct-shlib-dependency /usr/lib/libformat.so.1.1.0 /lib/libm.so.6.
target_link_libraries(fmt -Wl,--as-needed)
endif ()
target_compile_definitions(fmt PRIVATE FMT_EXPORT INTERFACE FMT_SHARED)
endif ()
if (FMT_SAFE_DURATION_CAST)
target_compile_definitions(fmt PUBLIC FMT_SAFE_DURATION_CAST)
endif()
add_library(fmt-header-only INTERFACE)
add_library(fmt::fmt-header-only ALIAS fmt-header-only)
target_compile_definitions(fmt-header-only INTERFACE FMT_HEADER_ONLY=1)
target_compile_features(fmt-header-only INTERFACE ${FMT_REQUIRED_FEATURES})
target_include_directories(fmt-header-only INTERFACE
$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
$<INSTALL_INTERFACE:include>)
# Install targets.
if (FMT_INSTALL)
include(GNUInstallDirs)
include(CMakePackageConfigHelpers)
set_verbose(FMT_CMAKE_DIR ${CMAKE_INSTALL_LIBDIR}/cmake/fmt CACHE STRING
"Installation directory for cmake files, a relative path "
"that will be joined to ${CMAKE_INSTALL_PREFIX}, or an arbitrary absolute path.")
set(version_config ${PROJECT_BINARY_DIR}/fmt-config-version.cmake)
set(project_config ${PROJECT_BINARY_DIR}/fmt-config.cmake)
set(pkgconfig ${PROJECT_BINARY_DIR}/fmt.pc)
set(targets_export_name fmt-targets)
set (INSTALL_TARGETS fmt)
if (TARGET fmt-header-only)
set(INSTALL_TARGETS ${INSTALL_TARGETS} fmt-header-only)
endif ()
set_verbose(FMT_LIB_DIR ${CMAKE_INSTALL_LIBDIR} CACHE STRING
"Installation directory for libraries, a relative path "
"that will be joined to ${CMAKE_INSTALL_PREFIX}, or an arbitrary absolute path.")
set_verbose(FMT_INC_DIR ${CMAKE_INSTALL_INCLUDEDIR}/fmt CACHE STRING
"Installation directory for include files, a relative path "
"that will be joined to ${CMAKE_INSTALL_PREFIX}, or an arbitrary absolute path.")
set_verbose(FMT_PKGCONFIG_DIR ${CMAKE_INSTALL_LIBDIR}/pkgconfig CACHE PATH
"Installation directory for pkgconfig (.pc) files, a relative path "
"that will be joined to ${CMAKE_INSTALL_PREFIX}, or an arbitrary absolute path.")
# Generate the version, config and target files into the build directory.
write_basic_package_version_file(
${version_config}
VERSION ${FMT_VERSION}
COMPATIBILITY AnyNewerVersion)
join_paths(libdir_for_pc_file "\${exec_prefix}" "${CMAKE_INSTALL_LIBDIR}")
join_paths(includedir_for_pc_file "\${prefix}" "${CMAKE_INSTALL_INCLUDEDIR}")
configure_file(
"${PROJECT_SOURCE_DIR}/support/cmake/fmt.pc.in"
"${pkgconfig}"
@ONLY)
configure_package_config_file(
${PROJECT_SOURCE_DIR}/support/cmake/fmt-config.cmake.in
${project_config}
INSTALL_DESTINATION ${FMT_CMAKE_DIR})
# Use a namespace because CMake provides better diagnostics for namespaced
# imported targets.
export(TARGETS ${INSTALL_TARGETS} NAMESPACE fmt::
FILE ${PROJECT_BINARY_DIR}/${targets_export_name}.cmake)
# Install version, config and target files.
install(
FILES ${project_config} ${version_config}
DESTINATION ${FMT_CMAKE_DIR})
install(EXPORT ${targets_export_name} DESTINATION ${FMT_CMAKE_DIR}
NAMESPACE fmt::)
# Install the library and headers.
install(TARGETS ${INSTALL_TARGETS} EXPORT ${targets_export_name}
LIBRARY DESTINATION ${FMT_LIB_DIR}
ARCHIVE DESTINATION ${FMT_LIB_DIR}
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
install(FILES $<TARGET_PDB_FILE:${INSTALL_TARGETS}>
DESTINATION ${FMT_LIB_DIR} OPTIONAL)
install(FILES ${FMT_HEADERS} DESTINATION ${FMT_INC_DIR})
install(FILES "${pkgconfig}" DESTINATION "${FMT_PKGCONFIG_DIR}")
endif ()
if (FMT_DOC)
add_subdirectory(doc)
endif ()
if (FMT_TEST)
enable_testing()
add_subdirectory(test)
endif ()
# Control fuzzing independent of the unit tests.
if (FMT_FUZZ)
add_subdirectory(test/fuzzing)
target_compile_definitions(fmt PUBLIC FMT_FUZZ)
endif ()
set(gitignore ${PROJECT_SOURCE_DIR}/.gitignore)
if (MASTER_PROJECT AND EXISTS ${gitignore})
# Get the list of ignored files from .gitignore.
file (STRINGS ${gitignore} lines)
list(REMOVE_ITEM lines /doc/html)
foreach (line ${lines})
string(REPLACE "." "[.]" line "${line}")
string(REPLACE "*" ".*" line "${line}")
set(ignored_files ${ignored_files} "${line}$" "${line}/")
endforeach ()
set(ignored_files ${ignored_files}
/.git /breathe /format-benchmark sphinx/ .buildinfo .doctrees)
set(CPACK_SOURCE_GENERATOR ZIP)
set(CPACK_SOURCE_IGNORE_FILES ${ignored_files})
set(CPACK_SOURCE_PACKAGE_FILE_NAME fmt-${FMT_VERSION})
set(CPACK_PACKAGE_NAME fmt)
set(CPACK_RESOURCE_FILE_README ${PROJECT_SOURCE_DIR}/README.rst)
include(CPack)
endif ()