Le 04/06/2018 à 10:16, Eric Noulard a écrit :
Le lun. 4 juin 2018 à 09:59, Stéphane Ancelot
<sance...@numalliance.com <mailto:sance...@numalliance.com>> a écrit :
hi
is there a mactro for cpp ?
You mean a CMake variable which would contain the path to C
preprocessor binary?
I don't think so, at list no xxx_<LANG>_xxx variable seems to exists
for that.
Did you check "cmake --help-variable-list" ?
May be you can ask the compiler to act a the C pre-processor?
clang and gcc both accept the '-E' command line option to only run the
preprocessor.
I used ${CMAKE_C_COMPILER} -E
otherwise you may probably call
find_program(C_PREPROCESSOR NAMES cpp)
In both cases I don't know how to discover that in a cross-platform way.
Probably MSVC has another option for pre-processsing.
Eric
Regards,
S.Ancelot
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Eric
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