fmt/CMakeLists.txt

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cmake_minimum_required(VERSION 3.1.0)
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# Use newer policies if available, up to most recent tested version of CMake.
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if(${CMAKE_VERSION} VERSION_LESS 3.11)
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cmake_policy(VERSION ${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION})
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else()
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cmake_policy(VERSION 3.11)
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endif()
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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.
set(MASTER_PROJECT OFF)
if (CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
set(MASTER_PROJECT ON)
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message(STATUS "CMake version: ${CMAKE_VERSION}")
endif ()
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# 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()
# 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)
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join(doc "Choose the type of build, options are: None(CMAKE_CXX_FLAGS or "
"CMAKE_C_FLAGS used) Debug Release RelWithDebInfo MinSizeRel.")
set(CMAKE_BUILD_TYPE Release CACHE STRING ${doc})
endif ()
option(FMT_PEDANTIC "Enable extra warnings and expensive tests." OFF)
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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})
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project(FMT CXX)
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# 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 ()
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# 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}")
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message(STATUS "Build type: ${CMAKE_BUILD_TYPE}")
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set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH}
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"${CMAKE_CURRENT_SOURCE_DIR}/support/cmake")
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include(cxx14)
include(CheckCXXCompilerFlag)
set(FMT_REQUIRED_FEATURES cxx_auto_type cxx_variadic_templates)
if (CMAKE_CXX_COMPILER_ID MATCHES "GNU")
set(PEDANTIC_COMPILE_FLAGS -pedantic-errors -Wall -Wextra -pedantic
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-Wold-style-cast -Wundef
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-Wredundant-decls -Wwrite-strings -Wpointer-arith
-Wcast-qual -Wformat=2 -Wmissing-include-dirs
-Wcast-align -Wnon-virtual-dtor
-Wctor-dtor-privacy -Wdisabled-optimization
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-Winvalid-pch -Woverloaded-virtual
-Wconversion
-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 ()
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if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
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set(PEDANTIC_COMPILE_FLAGS -Wall -Wextra -pedantic -Wconversion
-Wno-sign-conversion)
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check_cxx_compiler_flag(-Wzero-as-null-pointer-constant HAS_NULLPTR_WARNING)
if (HAS_NULLPTR_WARNING)
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set(PEDANTIC_COMPILE_FLAGS ${PEDANTIC_COMPILE_FLAGS}
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-Wzero-as-null-pointer-constant)
endif ()
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set(WERROR_FLAG -Werror)
endif ()
if (MSVC)
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set(PEDANTIC_COMPILE_FLAGS /W3)
set(WERROR_FLAG /WX)
endif ()
if (MASTER_PROJECT AND CMAKE_GENERATOR MATCHES "Visual Studio")
# If Microsoft SDK is installed create script run-msbuild.bat that
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# calls SetEnv.cmd to set up build environment and runs msbuild.
# It is useful when building Visual Studio projects with the SDK
# toolchain rather than Visual Studio.
include(FindSetEnv)
if (WINSDK_SETENV)
set(MSBUILD_SETUP "call \"${WINSDK_SETENV}\"")
endif ()
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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")
file(WRITE run-msbuild.bat "
${MSBUILD_SETUP}
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${CMAKE_MAKE_PROGRAM} -p:FrameworkPathOverride=\"${netfxpath}\" %*")
endif ()
set(strtod_l_headers stdlib.h)
if (APPLE)
set(strtod_l_headers ${strtod_l_headers} xlocale.h)
endif ()
include(CheckSymbolExists)
if (WIN32)
check_symbol_exists(open io.h HAVE_OPEN)
check_symbol_exists(_strtod_l "${strtod_l_headers}" HAVE_STRTOD_L)
else ()
check_symbol_exists(open fcntl.h HAVE_OPEN)
check_symbol_exists(strtod_l "${strtod_l_headers}" HAVE_STRTOD_L)
endif ()
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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 core.h format.h format-inl.h locale.h
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ostream.h prepare.h printf.h ranges.h)
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set(FMT_SOURCES src/format.cc)
if (HAVE_OPEN)
add_headers(FMT_HEADERS posix.h)
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set(FMT_SOURCES ${FMT_SOURCES} src/posix.cc)
endif ()
add_library(fmt ${FMT_SOURCES} ${FMT_HEADERS} README.rst ChangeLog.rst)
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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})
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target_include_directories(fmt PUBLIC
$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
$<INSTALL_INTERFACE:include>)
set_target_properties(fmt PROPERTIES
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VERSION ${FMT_VERSION} SOVERSION ${CPACK_PACKAGE_VERSION_MAJOR}
DEBUG_POSTFIX d)
if (BUILD_SHARED_LIBS)
if (UNIX AND NOT APPLE)
# 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 ()
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})
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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(FMT_CMAKE_DIR ${CMAKE_INSTALL_LIBDIR}/cmake/fmt CACHE STRING
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"Installation directory for cmake files, relative to ${CMAKE_INSTALL_PREFIX}.")
set(version_config ${PROJECT_BINARY_DIR}/fmt-config-version.cmake)
set(project_config ${PROJECT_BINARY_DIR}/fmt-config.cmake)
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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(FMT_LIB_DIR ${CMAKE_INSTALL_LIBDIR} CACHE STRING
"Installation directory for libraries, relative to ${CMAKE_INSTALL_PREFIX}.")
set(FMT_INC_DIR ${CMAKE_INSTALL_INCLUDEDIR}/fmt CACHE STRING
"Installation directory for include files, relative to ${CMAKE_INSTALL_PREFIX}.")
set(FMT_PKGCONFIG_DIR ${CMAKE_INSTALL_LIBDIR}/pkgconfig CACHE PATH
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"Installation directory for pkgconfig (.pc) files, relative to ${CMAKE_INSTALL_PREFIX}.")
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# Generate the version, config and target files into the build directory.
write_basic_package_version_file(
${version_config}
VERSION ${FMT_VERSION}
COMPATIBILITY AnyNewerVersion)
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configure_file(
"${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})
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# 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})
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install(EXPORT ${targets_export_name} DESTINATION ${FMT_CMAKE_DIR}
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NAMESPACE fmt::)
# Install the library and headers.
install(TARGETS ${INSTALL_TARGETS} EXPORT ${targets_export_name}
DESTINATION ${FMT_LIB_DIR})
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install(FILES $<TARGET_PDB_FILE:${INSTALL_TARGETS}>
DESTINATION ${FMT_LIB_DIR} OPTIONAL)
install(FILES ${FMT_HEADERS} DESTINATION ${FMT_INC_DIR})
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install(FILES "${pkgconfig}" DESTINATION "${FMT_PKGCONFIG_DIR}")
endif ()
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if (FMT_DOC)
add_subdirectory(doc)
endif ()
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if (FMT_TEST)
enable_testing()
add_subdirectory(test)
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endif ()
set(gitignore ${PROJECT_SOURCE_DIR}/.gitignore)
if (MASTER_PROJECT AND EXISTS ${gitignore})
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# Get the list of ignored files from .gitignore.
file (STRINGS ${gitignore} lines)
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LIST(REMOVE_ITEM lines /doc/html)
foreach (line ${lines})
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string(REPLACE "." "[.]" line "${line}")
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string(REPLACE "*" ".*" line "${line}")
set(ignored_files ${ignored_files} "${line}$" "${line}/")
endforeach ()
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set(ignored_files ${ignored_files}
/.git /breathe /format-benchmark sphinx/ .buildinfo .doctrees)
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set(CPACK_SOURCE_GENERATOR ZIP)
set(CPACK_SOURCE_IGNORE_FILES ${ignored_files})
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set(CPACK_SOURCE_PACKAGE_FILE_NAME fmt-${FMT_VERSION})
set(CPACK_PACKAGE_NAME fmt)
set(CPACK_RESOURCE_FILE_README ${PROJECT_SOURCE_DIR}/README.rst)
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include(CPack)
endif ()