[Issue 21944] importC: Support parsing # line marker directive extensions

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=21944

Dlang Bot <dlang-bot at dlang.rocks> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |pull

--- Comment #1 from Dlang Bot <dlang-bot at dlang.rocks> ---
@ibuclaw created dlang/dmd pull request #12585 "fix Issue 21944 - importC: Add
`-P` to C preprocessor invocation example" fixing this issue:

- fix Issue 21944 - importC: Add `-P` to C preprocessor invocation example

  The recommendation for using a preprocessor does not generate compilable
  code due to the `#line` directive not being supported by importC.

https://github.com/dlang/dmd/pull/12585

--