FPM with FYPP don't work

I tried to use FPM with the FYPP pre-processor. The FPM manifest indicates the use of FYPP.

To use multiple preprocessors, for example cpp and fypp, specify them like this:



However, when I try to use it, I receive an error message.

fpm build                                                                                       
Warning: Preprocessor fypp is not supported; will ignore it
<ERROR> *cmd_build* Target error: Unable to find source for module dependency: "printtwomod" used by "app/main.f90"

Am I doing something wrong, or does FPM not support FYPP yet?

@Lufla indeed, fpm does not support fully fypp pre-processor. See here a workaround for stdlib developed by @hkvzjal .