ceph/src/jaegertracing/opentelemetry-cpp/tools/vcpkg/docs/maintainers/internal/vcpkg_internal_get_cmake_vars.md

   1 # vcpkg_internal_get_cmake_vars
   2
   3 The latest version of this document lives in the [vcpkg repo](https://github.com/Microsoft/vcpkg/blob/master/docs/).
   4
   5 **Only for internal use in vcpkg helpers. Behavior and arguments will change without notice.**
   6 Runs a cmake configure with a dummy project to extract certain cmake variables
   7
   8 ## Usage
   9 ```cmake
  10 vcpkg_internal_get_cmake_vars(
  11     [OUTPUT_FILE <output_file_with_vars>]
  12     [OPTIONS <-DUSE_THIS_IN_ALL_BUILDS=1>...]
  13 )
  14 ```
  15
  16 ## Parameters
  17 ### OPTIONS
  18 Additional options to pass to the test configure call
  19
  20 ### OUTPUT_FILE
  21 Variable to return the path to the generated cmake file with the detected `CMAKE_` variables set as `VCKPG_DETECTED_`
  22
  23 ## Notes
  24 If possible avoid usage in portfiles.
  25
  26 ## Examples
  27
  28 * [vcpkg_configure_make](https://github.com/Microsoft/vcpkg/blob/master/scripts/cmake/vcpkg_configure_make.cmake)
  29
  30 ## Source
  31 [scripts/cmake/vcpkg\_internal\_get\_cmake\_vars.cmake](https://github.com/Microsoft/vcpkg/blob/master/scripts/cmake/vcpkg_internal_get_cmake_vars.cmake)