Dear all,
do you know a best practice on how to specify compiler flags without knowing in
advance which compiler will be used?
Its about Fortran projects, where I e.g. want to explicitly enable the
preprocessor, or make all default real values 8 byte wide. This could be done
as such:
if(${CMAKE_Fortran_COMPILER_ID} STREQUAL "Intel")
set(CMAKE_Fortran_FLAGS "-fpp -r8")
elseif(${CMAKE_Fortran_COMPILER_ID} STREQUAL "GNU")
set(CMAKE_Fortran_FLAGS "-cpp -fdefault-real-8")
endif()
Cmake has the cmake-compile-features and I though maybe some similar mechanism
exists for above mentioned compiler switches. So I could say
target_compile_features(mylib PRIVATE f_preprocessor f_real_8)
Thanks for sharing your advise,
Jan
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