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cmake_minimum_required(VERSION 3.14)
project(vcpkg C CXX)
OPTION(DEFINE_DISABLE_METRICS "Option for disabling metrics" OFF)
OPTION(VCPKG_ALLOW_APPLE_CLANG "Option for allowing apple clang" OFF)
OPTION(VCPKG_DEVELOPMENT_WARNINGS "Option for turning on all warnings, and making them errors" ON)
OPTION(BUILD_TESTING "Option for enabling testing" ON)
OPTION(VCPKG_BUILD_BENCHMARKING "Option for enabling benchmarking" OFF)
# for backwards compatibility with existing code
if (WERROR)
set(VCPKG_DEVELOPMENT_WARNINGS On)
endif()
if (DEFINE_DISABLE_METRICS)
set(DISABLE_METRICS_VALUE "1")
else()
set(DISABLE_METRICS_VALUE "0")
endif()
if(CMAKE_COMPILER_IS_GNUXX OR CMAKE_CXX_COMPILER_ID MATCHES "GNU")
set(GCC 1)
elseif(CMAKE_CXX_COMPILER_ID MATCHES "AppleClang")
if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL "11.0.0")
set(CLANG 1)
# Disable linking with libc++fs because this features are added in libc++ library
set(NO_LIBCXXFS 1)
elseif(NOT VCPKG_ALLOW_APPLE_CLANG)
message(FATAL_ERROR
"Building the vcpkg tool requires support for the C++ Filesystem TS.
Apple clang versions 10.01 and below do not have support for it.
Please install gcc6 or newer from homebrew (brew install gcc@6).
If you would like to try anyway, pass --allowAppleClang to bootstrap.sh.")
else()
set(CLANG 1)
endif()
elseif(CMAKE_CXX_COMPILER_ID MATCHES "[Cc]lang")
set(CLANG 1)
if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL "9.0.0")
set(NO_LIBCXXFS 1)
add_compile_definitions(_LIBCPP_NO_EXPERIMENTAL_DEPRECATION_WARNING_FILESYSTEM=1)
endif()
elseif(NOT MSVC)
message(FATAL_ERROR "Unknown compiler: ${CMAKE_CXX_COMPILER_ID}")
endif()
set(THREADS_PREFER_PTHREAD_FLAG ON)
find_package(Threads REQUIRED)
add_definitions(-DDISABLE_METRICS=${DISABLE_METRICS_VALUE})
include_directories(include)
link_libraries(Threads::Threads)
if(CLANG AND NOT MSVC)
include(CheckCXXSourceCompiles)
check_cxx_source_compiles("#include <iostream>
int main() { return __GLIBCXX__; }" USES_LIBSTDCXX)
check_cxx_source_compiles("#include <iostream>
int main() { return _LIBCPP_VERSION; }" USES_LIBCXX)
if ( NOT USES_LIBSTDCXX AND NOT USES_LIBCXX )
message(FATAL_ERROR "Can't find which C++ runtime is in use")
endif()
endif()
if(GCC OR (CLANG AND USES_LIBSTDCXX))
include(CheckCXXSourceCompiles)
set(CMAKE_REQUIRED_LIBRARIES stdc++fs)
check_cxx_source_compiles("#include <experimental/filesystem>
int main() { return 0; }" LINKS_TO_STDCXX_FS)
unset(CMAKE_REQUIRED_LIBRARIES)
if (LINKS_TO_STDCXX_FS)
link_libraries(stdc++fs)
endif()
elseif(CLANG AND NOT MSVC AND NOT NO_LIBCXXFS)
link_libraries(c++fs)
endif()
if(MSVC)
# either MSVC, or clang-cl
add_compile_options(-FC)
if (MSVC_VERSION GREATER 1900)
# Visual Studio 2017 or later
add_compile_options(-std:c++17 -permissive-)
else()
# Visual Studio 2015
add_compile_options(-std:c++latest)
endif()
if(VCPKG_DEVELOPMENT_WARNINGS)
string(REGEX REPLACE "/W[0-4]" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
add_compile_options(-W4 -WX)
if (CLANG)
add_compile_options(-Wmissing-prototypes -Wno-missing-field-initializers)
endif()
endif()
elseif(GCC OR CLANG)
add_compile_options(-std=c++1z)
if(VCPKG_DEVELOPMENT_WARNINGS)
add_compile_options(-Wall -Wextra -Wpedantic -Wno-unknown-pragmas -Wno-missing-field-initializers -Wno-redundant-move -Werror)
# GCC and clang have different names for the same warning
if (GCC)
add_compile_options(-Wmissing-declarations)
elseif(CLANG)
add_compile_options(-Wmissing-prototypes)
endif()
endif()
endif()
file(GLOB_RECURSE VCPKGLIB_SOURCES CONFIGURE_DEPENDS src/vcpkg/*.cpp)
add_library(vcpkglib OBJECT ${VCPKGLIB_SOURCES})
add_executable(vcpkg src/vcpkg.cpp $<TARGET_OBJECTS:vcpkglib>)
if (BUILD_TESTING)
file(GLOB_RECURSE VCPKGTEST_SOURCES CONFIGURE_DEPENDS src/vcpkg-test/*.cpp)
enable_testing()
add_executable(vcpkg-test
${VCPKGTEST_SOURCES}
$<TARGET_OBJECTS:vcpkglib>)
add_test(NAME default COMMAND vcpkg-test)
if (VCPKG_BUILD_BENCHMARKING)
target_compile_options(vcpkg-test PRIVATE -DCATCH_CONFIG_ENABLE_BENCHMARKING)
endif()
find_program(CLANG_FORMAT clang-format)
if (CLANG_FORMAT)
file(GLOB_RECURSE VCPKG_FORMAT_SOURCES CONFIGURE_DEPENDS src/*.cpp include/pch.h include/vcpkg/*.h include/vcpkg-test/*.h)
add_custom_target(format COMMAND ${CLANG_FORMAT} -i -verbose ${VCPKG_FORMAT_SOURCES})
endif()
endif()
if(MSVC)
get_target_property(_srcs vcpkglib SOURCES)
if(NOT CMAKE_GENERATOR MATCHES "Visual Studio .*")
set_property(SOURCE src/pch.cpp APPEND PROPERTY OBJECT_OUTPUTS "${CMAKE_CURRENT_BINARY_DIR}/pch.pch")
set_property(SOURCE ${_srcs} APPEND PROPERTY OBJECT_DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/pch.pch")
endif()
set_source_files_properties(src/pch.cpp PROPERTIES COMPILE_FLAGS "/Ycpch.h")
target_sources(vcpkglib PRIVATE src/pch.cpp)
target_compile_options(vcpkglib PRIVATE /Yupch.h /FIpch.h /Zm200)
endif()
if (MINGW)
include(CheckCXXSourceCompiles)
check_cxx_source_compiles("#include <experimental/filesystem>
int main() { return 0; }" USES_EXPERIMENTAL_FS)
if (NOT USES_EXPERIMENTAL_FS)
add_compile_definitions(USE_STD_FILESYSTEM)
endif()
add_compile_definitions(
UNICODE
_WIN32_WINNT=0x0601
WINHTTP_ACCESS_TYPE_AUTOMATIC_PROXY=4
__fastfail=exit)
foreach(tgt vcpkg vcpkg-test)
target_link_libraries(${tgt} PRIVATE winhttp bcrypt version ole32 uuid)
endforeach()
endif()
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