CMAKE_<LANG>_FLAGS

Flags for all build types.

<LANG> flags used regardless of the value of CMAKE_BUILD_TYPE.

This is initialized for each language from environment variables:

  • CMAKE_C_FLAGS: Initialized by the CFLAGS environment variable.
  • CMAKE_CXX_FLAGS: Initialized by the CXXFLAGS environment variable.
  • CMAKE_CUDA_FLAGS: Initialized by the CUDAFLAGS environment variable.
  • CMAKE_Fortran_FLAGS: Initialized by the FFLAGS environment variable.

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Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.17/variable/CMAKE_LANG_FLAGS.html