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https://github.com/fmtlib/fmt.git
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Use target_compile_features to specify C++ standard requirement
This commit is contained in:
Chris Thrasher
Victor Zverovich
parent
fae6f7e081
commit
69ffedfe52
@ -1,4 +1,4 @@
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cmake_minimum_required(VERSION 3.1...3.18)
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cmake_minimum_required(VERSION 3.8...3.18)
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# Fallback for using newer policies on CMake <3.12.
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if(${CMAKE_VERSION} VERSION_LESS 3.12)
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@ -122,17 +122,9 @@ endif ()
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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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include(CheckCXXCompilerFlag)
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include(JoinPaths)
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list(FIND CMAKE_CXX_COMPILE_FEATURES "cxx_variadic_templates" index)
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if (${index} GREATER -1)
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# Use cxx_variadic_templates instead of more appropriate cxx_std_11 for
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# compatibility with older CMake versions.
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set(FMT_REQUIRED_FEATURES cxx_variadic_templates)
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endif ()
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message(STATUS "Required features: ${FMT_REQUIRED_FEATURES}")
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if (FMT_MASTER_PROJECT AND NOT DEFINED CMAKE_CXX_VISIBILITY_PRESET)
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set_verbose(CMAKE_CXX_VISIBILITY_PRESET hidden CACHE STRING
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"Preset for the export of private symbols")
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@ -239,7 +231,7 @@ if (FMT_MODULE)
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enable_module(fmt)
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endif ()
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target_compile_features(fmt INTERFACE ${FMT_REQUIRED_FEATURES})
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target_compile_features(fmt PUBLIC cxx_std_11)
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target_include_directories(fmt ${FMT_SYSTEM_HEADERS_ATTRIBUTE} PUBLIC
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$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
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@ -270,7 +262,7 @@ 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_compile_features(fmt-header-only INTERFACE ${FMT_REQUIRED_FEATURES})
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target_compile_features(fmt-header-only INTERFACE cxx_std_11)
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target_include_directories(fmt-header-only ${FMT_SYSTEM_HEADERS_ATTRIBUTE} INTERFACE
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$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
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@ -1,54 +0,0 @@
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# C++14 feature support detection
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include(CheckCXXCompilerFlag)
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function (fmt_check_cxx_compiler_flag flag result)
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if (NOT MSVC)
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check_cxx_compiler_flag("${flag}" ${result})
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endif ()
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endfunction ()
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if (NOT CMAKE_CXX_STANDARD)
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set(CMAKE_CXX_STANDARD 11)
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endif()
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message(STATUS "CXX_STANDARD: ${CMAKE_CXX_STANDARD}")
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if (CMAKE_CXX_STANDARD EQUAL 20)
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fmt_check_cxx_compiler_flag(-std=c++20 has_std_20_flag)
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fmt_check_cxx_compiler_flag(-std=c++2a has_std_2a_flag)
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if (has_std_20_flag)
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set(CXX_STANDARD_FLAG -std=c++20)
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elseif (has_std_2a_flag)
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set(CXX_STANDARD_FLAG -std=c++2a)
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endif ()
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elseif (CMAKE_CXX_STANDARD EQUAL 17)
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fmt_check_cxx_compiler_flag(-std=c++17 has_std_17_flag)
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fmt_check_cxx_compiler_flag(-std=c++1z has_std_1z_flag)
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if (has_std_17_flag)
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set(CXX_STANDARD_FLAG -std=c++17)
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elseif (has_std_1z_flag)
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set(CXX_STANDARD_FLAG -std=c++1z)
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endif ()
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elseif (CMAKE_CXX_STANDARD EQUAL 14)
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fmt_check_cxx_compiler_flag(-std=c++14 has_std_14_flag)
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fmt_check_cxx_compiler_flag(-std=c++1y has_std_1y_flag)
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if (has_std_14_flag)
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set(CXX_STANDARD_FLAG -std=c++14)
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elseif (has_std_1y_flag)
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set(CXX_STANDARD_FLAG -std=c++1y)
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endif ()
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elseif (CMAKE_CXX_STANDARD EQUAL 11)
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fmt_check_cxx_compiler_flag(-std=c++11 has_std_11_flag)
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fmt_check_cxx_compiler_flag(-std=c++0x has_std_0x_flag)
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if (has_std_11_flag)
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set(CXX_STANDARD_FLAG -std=c++11)
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elseif (has_std_0x_flag)
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set(CXX_STANDARD_FLAG -std=c++0x)
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endif ()
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endif ()
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@ -109,7 +109,7 @@ if (FMT_MODULE)
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# If module support is present the module tests require a
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# test-only module to be built from {fmt}
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add_library(test-module OBJECT ${CMAKE_SOURCE_DIR}/src/fmt.cc)
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target_compile_features(test-module PUBLIC ${FMT_REQUIRED_FEATURES})
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target_compile_features(test-module PUBLIC cxx_std_11)
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target_include_directories(test-module PUBLIC
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$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>)
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enable_module(test-module)
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@ -1,4 +1,4 @@
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cmake_minimum_required(VERSION 3.1...3.18)
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cmake_minimum_required(VERSION 3.8...3.18)
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project(fmt-test CXX)
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@ -1,6 +1,6 @@
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# Test if compile errors are produced where necessary.
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cmake_minimum_required(VERSION 3.1...3.18)
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cmake_minimum_required(VERSION 3.8...3.18)
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project(compile-error-test CXX)
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set(fmt_headers "
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@ -64,7 +64,7 @@ function (run_tests)
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")
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file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/test/CMakeLists.txt" "
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cmake_minimum_required(VERSION 3.1...3.18)
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cmake_minimum_required(VERSION 3.8...3.18)
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project(tests CXX)
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add_subdirectory(${FMT_DIR} fmt)
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${cmake_targets}
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@ -1,4 +1,4 @@
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cmake_minimum_required(VERSION 3.1...3.18)
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cmake_minimum_required(VERSION 3.8...3.18)
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project(fmt-test)
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@ -22,7 +22,7 @@ function(add_fuzzer source)
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if (FMT_FUZZ_LDFLAGS)
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target_link_libraries(${name} PRIVATE ${FMT_FUZZ_LDFLAGS})
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endif ()
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target_compile_features(${name} PRIVATE cxx_generic_lambdas)
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target_compile_features(${name} PRIVATE cxx_std_14)
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endfunction()
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foreach (source chrono-duration.cc chrono-timepoint.cc float.cc named-arg.cc one-arg.cc two-args.cc)
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@ -9,6 +9,7 @@ add_library(gtest STATIC
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gmock-gtest-all.cc gmock/gmock.h gtest/gtest.h gtest/gtest-spi.h)
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target_compile_definitions(gtest PUBLIC GTEST_HAS_STD_WSTRING=1)
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target_include_directories(gtest SYSTEM PUBLIC .)
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target_compile_features(gtest PUBLIC cxx_std_11)
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find_package(Threads)
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if (Threads_FOUND)
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@ -17,9 +18,10 @@ else ()
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target_compile_definitions(gtest PUBLIC GTEST_HAS_PTHREAD=0)
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endif ()
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# Workaround GTest bug https://github.com/google/googletest/issues/705.
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fmt_check_cxx_compiler_flag(
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-fno-delete-null-pointer-checks HAVE_FNO_DELETE_NULL_POINTER_CHECKS)
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# Workaround GTest bug https://github.com/google/googletest/issues/705
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if (NOT MSVC)
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check_cxx_compiler_flag(-fno-delete-null-pointer-checks HAVE_FNO_DELETE_NULL_POINTER_CHECKS)
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endif ()
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if (HAVE_FNO_DELETE_NULL_POINTER_CHECKS)
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target_compile_options(gtest PUBLIC -fno-delete-null-pointer-checks)
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endif ()
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@ -1,4 +1,4 @@
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cmake_minimum_required(VERSION 3.1...3.18)
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cmake_minimum_required(VERSION 3.8...3.18)
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project(fmt-link CXX)
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