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133 lines (100 loc) · 4 KB
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# Copyright 2017-2019 by Martin Moene
#
# https://github.com/martinmoene/string-view-lite
#
# Distributed under the Boost Software License, Version 1.0.
# (See accompanying file LICENSE.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
cmake_minimum_required( VERSION 3.15 FATAL_ERROR )
# string_view-lite project and version, updated by script/update-version.py:
project(
string_view_lite
VERSION 1.8.1
# DESCRIPTION "A C++17-like string_view for C++98, C++11 and later in a single-file header-only library"
# HOMEPAGE_URL "https://github.com/martinmoene/string-view-lite"
LANGUAGES CXX )
# Package information:
set( unit_name "string-view" )
set( package_nspace "nonstd" )
set( package_name "${unit_name}-lite" )
set( package_version "${${PROJECT_NAME}_VERSION}" )
message( STATUS "Project '${PROJECT_NAME}', package '${package_name}' version: '${package_version}'")
# Toplevel or subproject:
if ( CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME )
set( string_view_IS_TOPLEVEL_PROJECT TRUE )
else()
set( string_view_IS_TOPLEVEL_PROJECT FALSE )
endif()
# If toplevel project, enable building and performing of tests, disable building of examples:
option( STRING_VIEW_LITE_OPT_BUILD_TESTS "Build and perform string-view-lite tests" ${string_view_IS_TOPLEVEL_PROJECT} )
option( STRING_VIEW_LITE_OPT_BUILD_EXAMPLES "Build string-view-lite examples" OFF )
option( STRING_VIEW_LITE_OPT_SELECT_STD "Select std::string_view" OFF )
option( STRING_VIEW_LITE_OPT_SELECT_NONSTD "Select nonstd::string_view" OFF )
option( STRING_VIEW_LITE_OPT_CONV_STD_STRING_CLASS_METHODS "Provide conversion to/from std::string (class methods)" ON )
option( STRING_VIEW_LITE_OPT_CONV_STD_STRING_FREE_FUNCTIONS "Provide conversion to/from std::string (free functions)" ON )
# If requested, build and perform tests, build examples:
if ( STRING_VIEW_LITE_OPT_BUILD_TESTS )
enable_testing()
add_subdirectory( test )
endif()
if ( STRING_VIEW_LITE_OPT_BUILD_EXAMPLES )
enable_testing()
add_subdirectory( example )
endif()
#
# Interface, installation and packaging
#
# CMake helpers:
include( GNUInstallDirs )
include( CMakePackageConfigHelpers )
# Interface library:
add_library(
${package_name} INTERFACE )
add_library(
${package_nspace}::${package_name} ALIAS ${package_name} )
target_include_directories(
${package_name}
INTERFACE
"$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>"
"$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>" )
# Package configuration:
# Note: package_name and package_target are used in package_config_in
set( package_folder "${package_name}" )
set( package_target "${package_name}-targets" )
set( package_config "${package_name}-config.cmake" )
set( package_config_in "${package_name}-config.cmake.in" )
set( package_config_version "${package_name}-config-version.cmake" )
configure_package_config_file(
"${CMAKE_CURRENT_SOURCE_DIR}/cmake/${package_config_in}"
"${CMAKE_CURRENT_BINARY_DIR}/${package_config}"
INSTALL_DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${package_folder}"
)
configure_file(
"${CMAKE_CURRENT_SOURCE_DIR}/cmake/${package_config_version}.in"
"${CMAKE_CURRENT_BINARY_DIR}/${package_config_version}" @ONLY
)
# Installation:
install(
TARGETS ${package_name}
EXPORT ${package_target}
# INCLUDES DESTINATION "${...}" # already set via target_include_directories()
)
install(
EXPORT ${package_target}
NAMESPACE ${package_nspace}::
DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${package_folder}"
)
install(
FILES "${CMAKE_CURRENT_BINARY_DIR}/${package_config}"
"${CMAKE_CURRENT_BINARY_DIR}/${package_config_version}"
DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${package_folder}"
)
install(
DIRECTORY "include/"
DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
)
export(
EXPORT ${package_target}
NAMESPACE ${package_nspace}::
FILE "${CMAKE_CURRENT_BINARY_DIR}/${package_name}-targets.cmake"
)
# end of file