Re: Failure building Emacs master on MSYS2 [MSYS2 PKG]

[Bruno Haible]

Collin Funk wrote:
> Adding Bruno to the CC since we saw a similar issue in gperf [1].

In that case, the problem was on the user's side. My guess is that
it was some outdated generated .h file being left in the build tree.

To overcome a problem like this:
  1) run
     $ ./configure
     $ make distclean
  2) if that does not help:
     $ ./configure
     $ make maintainer-clean
  3) if that does not help:
     Temporarily remove all the contents of the .gitignore file(s).
     Then do a "git status" and remove all leftover generated files.
     Then restore the .gitignore file(s).
  4) Do VPATH builds only if the source tree is clean, i.e. doesn't
     contain generated files.

Bruno