You can handle emscripten specific options inside an if-block which check that CMAKE_SYSTEM_NAME is "Emscripten". For example see here at the start and towards the end of the CMakeLists.txt file:
https://github.com/floooh/pacman.c/blob/main/CMakeLists.txt On Friday, 29 October 2021 at 01:44:48 UTC+2 [email protected] wrote: > On Wed, Oct 27, 2021 at 4:59 PM 'Steven Johnson' via emscripten-discuss < > [email protected]> wrote: > >> If I am using emcmake to build an existing CMake-based executable, what's >> the right / best way to set emcc options? (e.g. -s ASSERTIONS=1 -s >> ENVIRONMENT=node)? >> >> Random googling hasn't found a definitive answer. Some hits suggest that >> I can use target_compile_options() and/or target_link_opions() in my CMake >> build files to set these, but it would be nice if I could (also) just >> specify them on the command line (for cases where the CMake files aren't >> yet modified to be smart). >> > > We don't support anything special here, so the answer is the same as if > you had asked "how to I pass extra compile and/or link flags to a cmake > project". > > I think the answer is here: > https://stackoverflow.com/questions/44284275/passing-compiler-options-cmake. > Do -DCMAKE_C_FLAGS=... and -DCMAKE_CXX_FLAGS=... work for you? > > > >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "emscripten-discuss" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/emscripten-discuss/CAM%3DdnvcfdQqqYP1xNznuLZK19kjaq2sPfhY%3DQTYxpWtgZhfgdw%40mail.gmail.com >> >> <https://groups.google.com/d/msgid/emscripten-discuss/CAM%3DdnvcfdQqqYP1xNznuLZK19kjaq2sPfhY%3DQTYxpWtgZhfgdw%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> > -- You received this message because you are subscribed to the Google Groups "emscripten-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/emscripten-discuss/66084f8e-d6e3-47f7-8160-29087fcaba3an%40googlegroups.com.
