[cfe-dev] [Modules] Dependency Generation

[Thorsten Schütt via cfe-dev]

Hi,

I am trying to create dependency files for a Makefile for modules TS.

$ cat bar.cppm
export module bar;
$ cat foo.cppm
export module foo;

import bar;
$ clang++ -MM -fmodules-ts foo.cppm
foo.cppm:3:8: fatal error: module 'bar' not found
import bar;
~~~~~~~^~~
foo.o: foo.cppm
1 error generated.

Apparently I need to know, that foo imports bar and create a bar.pcm. Otherwise, I can not query the dependencies of foo?!?

Any ideas, how to create dependency files with modules-ts?

Cheers,
  Thorsten