To ensure that any existing copies of autotools files will be replaced
with the current versions.
(Cherry picked from amdgpu commit a47c0093338d80d84e7033ad15d051925d542ca0)
Acked-by: Alex Deucher <alexander.deucher@amd.com>
If --enable-maintainer-mode got lost from config.status for any reason,
builds would fail in mysterious ways after changing between different
Git commits.
There are more reasons for dropping it in the automake manual:
https://www.gnu.org/software/automake/manual/html_node/maintainer_002dmode.html
I'm not aware of any reason why --disable-maintainer-mode would ever be
useful with this project.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
