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CMake: Optional Install if Embedded

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When adding this library as embedded library with private
"target link", e.g., only used inside private source files, the
library does not need to be installed when the main project gets
installed.

This adds an additional option `toml11_INSTALL` similar to the
test-build control switch in order to skip installing headers and
CMake config files if requested.

Avoids using
```cmake
add_subdirectory(path/to/toml11 EXCLUDE_FROM_ALL)
```

which has further side-effects:
https://cmake.org/cmake/help/v3.0/command/add_subdirectory.html
This commit is contained in:
Axel Huebl
2022-03-03 18:55:55 -08:00
parent bf2384d8da
commit 7fb8b84143
1 changed files with 32 additions and 29 deletions
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33
CMakeLists.txt
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@@ -4,6 +4,7 @@ enable_testing()
project(toml11 VERSION 3.7.0) project(toml11 VERSION 3.7.0)
option(toml11_BUILD_TEST "Build toml tests" OFF) option(toml11_BUILD_TEST "Build toml tests" OFF)
option(toml11_INSTALL "Install CMake targets during install step." ON)
option(toml11_TEST_WITH_ASAN "use LLVM address sanitizer" OFF) option(toml11_TEST_WITH_ASAN "use LLVM address sanitizer" OFF)
option(toml11_TEST_WITH_UBSAN "use LLVM undefined behavior sanitizer" OFF) option(toml11_TEST_WITH_UBSAN "use LLVM undefined behavior sanitizer" OFF)
@@ -75,38 +76,40 @@ write_basic_package_version_file(
COMPATIBILITY SameMajorVersion COMPATIBILITY SameMajorVersion
) )
configure_package_config_file( if (toml11_INSTALL)
configure_package_config_file(
cmake/toml11Config.cmake.in cmake/toml11Config.cmake.in
${toml11_config} ${toml11_config}
INSTALL_DESTINATION ${toml11_install_cmake_dir} INSTALL_DESTINATION ${toml11_install_cmake_dir}
PATH_VARS toml11_install_cmake_dir PATH_VARS toml11_install_cmake_dir
) )
# Install config files # Install config files
install(FILES ${toml11_config} ${toml11_config_version} install(FILES ${toml11_config} ${toml11_config_version}
DESTINATION ${toml11_install_cmake_dir} DESTINATION ${toml11_install_cmake_dir}
) )
# Install header files # Install header files
install( install(
FILES toml.hpp FILES toml.hpp
DESTINATION "${toml11_install_include_dir}" DESTINATION "${toml11_install_include_dir}"
) )
install( install(
DIRECTORY "toml" DIRECTORY "toml"
DESTINATION "${toml11_install_include_dir}" DESTINATION "${toml11_install_include_dir}"
FILES_MATCHING PATTERN "*.hpp" FILES_MATCHING PATTERN "*.hpp"
) )
# Export targets and install them # Export targets and install them
install(TARGETS toml11 install(TARGETS toml11
EXPORT toml11Targets EXPORT toml11Targets
) )
install(EXPORT toml11Targets install(EXPORT toml11Targets
FILE toml11Targets.cmake FILE toml11Targets.cmake
DESTINATION ${toml11_install_cmake_dir} DESTINATION ${toml11_install_cmake_dir}
NAMESPACE toml11:: NAMESPACE toml11::
) )
endif()
if (toml11_BUILD_TEST) if (toml11_BUILD_TEST)
add_subdirectory(tests) add_subdirectory(tests)