diff options
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/cmake/vcpkg_check_features.cmake | 82 | ||||
| -rw-r--r-- | scripts/cmake/vcpkg_common_functions.cmake | 1 |
2 files changed, 83 insertions, 0 deletions
diff --git a/scripts/cmake/vcpkg_check_features.cmake b/scripts/cmake/vcpkg_check_features.cmake new file mode 100644 index 000000000..c8848e987 --- /dev/null +++ b/scripts/cmake/vcpkg_check_features.cmake @@ -0,0 +1,82 @@ +## # vcpkg_check_features +## +## Check if one or more features are part of the package installation. +## +## ## Usage +## ```cmake +## vcpkg_check_features( +## <feature1> <output_variable1> +## [<feature2> <output_variable2>] +## ... +## ) +## ``` +## +## `vcpkg_check_features` accepts a list of (feature, output_variable) pairs. +## The syntax is similar to the `PROPERTIES` argument of `set_target_properties`. +## +## `vcpkg_check_features` will create a variable `FEATURE_OPTIONS` in the +## parent scope, which you can pass as a part of `OPTIONS` argument when +## calling functions like `vcpkg_config_cmake`: +## ```cmake +## vcpkg_config_cmake( +## SOURCE_PATH ${SOURCE_PATH} +## PREFER_NINJA +## OPTIONS +## -DBUILD_TESTING=ON +## ${FEATURE_OPTIONS} +## ) +## ``` +## +## ## Notes +## `vcpkg_check_features` is supposed to be called only once. Otherwise, the +## `FEATURE_OPTIONS` variable set by a previous call will be overwritten. +## +## ## Examples +## +## * [czmq](https://github.com/microsoft/vcpkg/blob/master/ports/czmq/portfile.cmake) +## * [oniguruma](https://github.com/microsoft/vcpkg/blob/master/ports/oniguruma/portfile.cmake) +## * [xtensor](https://github.com/microsoft/vcpkg/blob/master/ports/xtensor/portfile.cmake) +function(vcpkg_check_features) + cmake_parse_arguments(_vcf "" "" "" ${ARGN}) + + list(LENGTH ARGN _vcf_ARGC) + math(EXPR _vcf_INCORRECT_ARGN "${_vcf_ARGC} % 2") + + if(_vcf_INCORRECT_ARGN) + message(FATAL_ERROR "Called with incorrect number of arguments.") + endif() + + set(_vcf_IS_FEATURE_ARG ON) + set(_vcf_FEATURE_OPTIONS) + + # Process (feature, output_var) pairs + foreach(_vcf_ARG ${ARGN}) + if(_vcf_IS_FEATURE_ARG) + set(_vcf_FEATURE ${_vcf_ARG}) + + if(NOT ${_vcf_FEATURE} IN_LIST ALL_FEATURES) + message(FATAL_ERROR "Unknown feature: ${_vcf_FEATURE}") + endif() + + set(_vcf_IS_FEATURE_ARG OFF) + else() + set(_vcf_FEATURE_VAR ${_vcf_ARG}) + + if(${_vcf_FEATURE} IN_LIST FEATURES) + set(${_vcf_FEATURE_VAR} ON PARENT_SCOPE) + else() + set(${_vcf_FEATURE_VAR} OFF PARENT_SCOPE) + endif() + + list(APPEND _vcf_FEATURE_OPTIONS "-D${_vcf_FEATURE_VAR}=${${_vcf_FEATURE_VAR}}") + + set(_vcf_IS_FEATURE_ARG ON) + endif() + endforeach() + + if(DEFINED FEATURE_OPTIONS) + message(WARNING "FEATURE_OPTIONS is already defined and will be overwritten.") + endif() + + set(FEATURE_OPTIONS ${_vcf_FEATURE_OPTIONS} PARENT_SCOPE) +endfunction() diff --git a/scripts/cmake/vcpkg_common_functions.cmake b/scripts/cmake/vcpkg_common_functions.cmake index b99f8bee8..827d43abe 100644 --- a/scripts/cmake/vcpkg_common_functions.cmake +++ b/scripts/cmake/vcpkg_common_functions.cmake @@ -1,5 +1,6 @@ include(vcpkg_acquire_msys) include(vcpkg_add_to_path) +include(vcpkg_check_features) include(vcpkg_check_linkage) include(vcpkg_clean_msbuild) include(vcpkg_download_distfile) |