Comment 24 for bug 1842947

> > AIUI it won't automatically run either
>
> that's exactly the problem,

just to clarify; autoreconf *is* run during most builds, and *should* be run, as the 'configure' file is (or may be) behind the 'configure.ac' file, since patches to fix bugs go into the configure.ac file, not the configure file.

The problem happens when the build *doesn't* run autoreconf, because the timestamp of 'configure' is newer/equal to the timestamp of 'configure.ac'. Then the build runs using the old 'configure' file, losing all fixes that have been put into the 'configure.ac' file.

This patch simply changes the build to always run autoreconf.