Add CMake imported target for docopt library #159
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Using a separate build directory is a very common way of using CMake so add an ignore pattern for those.
eaaltonen
commented
Oct 17, 2022
| DESTINATION "${CMAKE_INSTALL_LIBDIR}/${ConfigPackageLocation}") | ||
| install(EXPORT ${export_name} | ||
| DESTINATION "${CMAKE_INSTALL_LIBDIR}/${ConfigPackageLocation}" | ||
| NAMESPACE Docopt::) |
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Regarding the name:
- is current
Docopt::docoptgood - should it be
Docopt.cpp::docopt - something else ?
eaaltonen
commented
Oct 17, 2022
| install(FILES docopt-config.cmake ${PROJECT_BINARY_DIR}/docopt-config-version.cmake DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/docopt") | ||
| install(EXPORT ${export_name} DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/docopt") | ||
| set(ConfigPackageLocation "cmake/docopt") | ||
| # Unix layout, ref https://cmake.org/cmake/help/latest/command/find_package.html#config-mode-search-procedure |
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There's at least two valid choices here, so I'd like to check the project author's preference here:
- unix layout (current)
- picking a layout according the current / specified OS.
Write our CMake config-file package using the `configure_package_config_file` function defined in CMakePackageConfigHelpers.cmake and export our library in a namespace so that it can be used as an imported target.
With the alias, the `Docopt::docopt` target can be linked to regardless of whether the consuming project uses `find_package` or `add_subdirectory`.
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added missing newline to |
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@jaredgrubb : if you could take a look? I will be submitting packaging to Buildroot soonish. |
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This PR writes the CMake config-file package using CMakePackageConfigHelpers and exports the target as a
Docopt::docoptimported target.This allows developers to install and use the library without necessarily requiring
rootpermission by:-DCMAKE_INSTALL_PREFIX="${HOME}/wherever"-DCMAKE_PREFIX_PATH="${HOME}/wherever"and linking to imported targetDocopt::docopt.Keeping in mind the newly released FetchContent and find_package() integration, also add an alias target so that
Docopt::docoptcan be linked to regardless of whether the build uses a prebuilt package or fetches the sources.