cmake_minimum_required(VERSION 3.7.2)

project(ghcfilesystem)

if (POLICY CMP0077)

cmake_policy(SET CMP0077 NEW)

endif()

if(POLICY CMP0110)

cmake_policy(SET CMP0110 NEW)

endif()

if(CMAKE_SOURCE_DIR STREQUAL PROJECT_SOURCE_DIR)

option(GHC_FILESYSTEM_BUILD_TESTING "Enable tests" ON)

option(GHC_FILESYSTEM_BUILD_EXAMPLES "Build examples" ON)

option(GHC_FILESYSTEM_WITH_INSTALL "With install target" ON)

else()

option(GHC_FILESYSTEM_BUILD_EXAMPLES "Build examples" OFF)

option(GHC_FILESYSTEM_BUILD_TESTING "Enable tests" OFF)

option(GHC_FILESYSTEM_WITH_INSTALL "With install target" ON)

endif()

option(GHC_FILESYSTEM_BUILD_STD_TESTING "Enable STD tests" ${GHC_FILESYSTEM_BUILD_TESTING})

if(NOT DEFINED GHC_FILESYSTEM_TEST_COMPILE_FEATURES)

set(GHC_FILESYSTEM_TEST_COMPILE_FEATURES ${CMAKE_CXX_COMPILE_FEATURES})

endif()

if(NOT DEFINED CMAKE_CXX_STANDARD)

set(CMAKE_CXX_STANDARD 11)

set(CMAKE_CXX_STANDARD_REQUIRED ON)

if(NOT CYGWIN)

set(CMAKE_CXX_EXTENSIONS OFF)

endif()

endif()

if(CMAKE_CXX_STANDARD LESS 11)

message(FATAL_ERROR "CMAKE_CXX_STANDARD is less than 11, ghc::filesystem only works with C++11 and above.")

endif()

message(STATUS "System name: ${CMAKE_SYSTEM_NAME}")

message(STATUS "Compiler ID: ${CMAKE_CXX_COMPILER_ID}")

message(STATUS "CMAKE_CXX_COMPILE_FEATURES: ${CMAKE_CXX_COMPILE_FEATURES}")

add_library(ghc_filesystem INTERFACE)

target_include_directories(ghc_filesystem INTERFACE

$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>

$<INSTALL_INTERFACE:include>)

target_compile_options(ghc_filesystem INTERFACE "$<$<C_COMPILER_ID:MSVC>:/utf-8>")

target_compile_options(ghc_filesystem INTERFACE "$<$<CXX_COMPILER_ID:MSVC>:/utf-8>")

if(GHC_FILESYSTEM_BUILD_TESTING OR GHC_FILESYSTEM_BUILD_EXAMPLES)

set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)

set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake/")

include(GhcHelper)

if(GHC_FILESYSTEM_BUILD_TESTING)

enable_testing()

add_subdirectory(test)

endif()

if(GHC_FILESYSTEM_BUILD_EXAMPLES)

add_subdirectory(examples)

endif()

endif()

if(GHC_FILESYSTEM_WITH_INSTALL)

include(CMakePackageConfigHelpers)

include(GNUInstallDirs)

install(DIRECTORY include/ DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})

install(TARGETS ghc_filesystem EXPORT ghc_filesystem-targets)

install(EXPORT ghc_filesystem-targets NAMESPACE ghcFilesystem:: DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/ghc_filesystem")

export(EXPORT ghc_filesystem-targets NAMESPACE ghcFilesystem:: FILE "${CMAKE_CURRENT_BINARY_DIR}/cmake/ghc_filesystem-targets.cmake")

configure_package_config_file(

"${CMAKE_CURRENT_SOURCE_DIR}/cmake/config.cmake.in"

"${PROJECT_BINARY_DIR}/cmake/ghc_filesystem-config.cmake"

INSTALL_DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/ghc_filesystem"

PATH_VARS CMAKE_INSTALL_INCLUDEDIR)

install(FILES "${PROJECT_BINARY_DIR}/cmake/ghc_filesystem-config.cmake"

DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/ghc_filesystem")

add_library(ghcFilesystem::ghc_filesystem ALIAS ghc_filesystem)

endif()