[PATCH v2 0/1] MR8502: configure: Don't nuke Makefile if makedep is interrupted.

[Yuxuan Shui (＠yshui)]

I noticed that if I Ctrl-C while makedep is re-generating the Makefile, the
Makefile will be gone.

There are two parts to this problem:

1. make deletes the output file if a rule is interrupted.
   - Solution: use the special .PRECIOUS target.
2. wine_fn_output_makefile overwrites the existing Makefile, because makedep
   is hardcoded to use the output makefile as its input.
   - Solution: add a -i command line options to makedep for specifying the
     input file name, then don't overwrite Makefile in wine_fn_output_makefile.

--
  v2: configure: Don't nuke Makefile if makedep is interrupted.

https://gitlab.winehq.org/wine/wine/-/merge_requests/8502