[pacman-dev] Incremental builds

[Yomi Ogunwumi]

Hello. I have several software projects I end up building frequently. For
quite awhile I had an alias, mkpkg that would do makepkg -sfiC. But then I
came across a blog post about the pacman/makepkg 4.2.0 release supporting
incremental builds. So I've since changed that alias to makepkg -sife.

Eventually I realized that maybe it was enabled automatically.Though it
would seem that it still isn't building incrementally. To confirm that I
built mpv, once from the AUR and again directly from github. (I waited for
some commits to be made to the master branch in both cases.) Building mpv
from the AUR seemed to start from the beginning despite no messages being
printed about the $srcdir being removed. Building directly from github was
quicker (after being built once in both cases).

So, are there some options I need to pass to makepkg enable incremental
builds?
-- 
*Yomi*