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Add CMake option CXXOPTS_ENABLE_INSTALL (#195)

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Install targets will not be generated if this option is set to OFF,
which is useful when including it as a bundled dependency of
another project.
This commit is contained in:
Anders 2019-08-01 09:51:01 +02:00 committed by Jarryd Beck
parent 56432321b8
commit 94c09511dd
1 changed files with 29 additions and 26 deletions
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55
CMakeLists.txt
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@ -36,6 +36,7 @@ enable_testing()
option(CXXOPTS_BUILD_EXAMPLES "Set to ON to build examples" ON)
option(CXXOPTS_BUILD_TESTS "Set to ON to build tests" ON)
option(CXXOPTS_ENABLE_INSTALL "Generate the install target" ON)
# request c++11 without gnu extension for the whole project and enable more warnings
if (CXXOPTS_CXX_STANDARD)
@ -70,35 +71,37 @@ target_include_directories(cxxopts INTERFACE
$<INSTALL_INTERFACE:include>
)
include(CMakePackageConfigHelpers)
set(CXXOPTS_CMAKE_DIR "lib/cmake/cxxopts" CACHE STRING
"Installation directory for cmake files, relative to ${CMAKE_INSTALL_PREFIX}.")
set(version_config "${PROJECT_BINARY_DIR}/cxxopts-config-version.cmake")
set(project_config "${PROJECT_BINARY_DIR}/cxxopts-config.cmake")
set(targets_export_name cxxopts-targets)
if(CXXOPTS_ENABLE_INSTALL)
include(CMakePackageConfigHelpers)
set(CXXOPTS_CMAKE_DIR "lib/cmake/cxxopts" CACHE STRING
"Installation directory for cmake files, relative to ${CMAKE_INSTALL_PREFIX}.")
set(version_config "${PROJECT_BINARY_DIR}/cxxopts-config-version.cmake")
set(project_config "${PROJECT_BINARY_DIR}/cxxopts-config.cmake")
set(targets_export_name cxxopts-targets)
# Generate the version, config and target files into the build directory.
write_basic_package_version_file(
${version_config}
VERSION ${VERSION}
COMPATIBILITY AnyNewerVersion)
configure_package_config_file(
${PROJECT_SOURCE_DIR}/cxxopts-config.cmake.in
${project_config}
INSTALL_DESTINATION ${CXXOPTS_CMAKE_DIR})
export(TARGETS cxxopts NAMESPACE cxxopts::
FILE ${PROJECT_BINARY_DIR}/${targets_export_name}.cmake)
# Generate the version, config and target files into the build directory.
write_basic_package_version_file(
${version_config}
VERSION ${VERSION}
COMPATIBILITY AnyNewerVersion)
configure_package_config_file(
${PROJECT_SOURCE_DIR}/cxxopts-config.cmake.in
${project_config}
INSTALL_DESTINATION ${CXXOPTS_CMAKE_DIR})
export(TARGETS cxxopts NAMESPACE cxxopts::
FILE ${PROJECT_BINARY_DIR}/${targets_export_name}.cmake)
# Install version, config and target files.
install(
FILES ${project_config} ${version_config}
DESTINATION ${CXXOPTS_CMAKE_DIR})
install(EXPORT ${targets_export_name} DESTINATION ${CXXOPTS_CMAKE_DIR}
NAMESPACE cxxopts::)
# Install version, config and target files.
install(
FILES ${project_config} ${version_config}
DESTINATION ${CXXOPTS_CMAKE_DIR})
install(EXPORT ${targets_export_name} DESTINATION ${CXXOPTS_CMAKE_DIR}
NAMESPACE cxxopts::)
# Install the header file and export the target
install(TARGETS cxxopts EXPORT ${targets_export_name} DESTINATION lib)
install(FILES ${PROJECT_SOURCE_DIR}/include/cxxopts.hpp DESTINATION include)
# Install the header file and export the target
install(TARGETS cxxopts EXPORT ${targets_export_name} DESTINATION lib)
install(FILES ${PROJECT_SOURCE_DIR}/include/cxxopts.hpp DESTINATION include)
endif()
add_subdirectory(src)
add_subdirectory(test)