A QtWebEngine rebuild in the same build.dir (without preceding `make clean`) completed just fine using ninja symlinked `samu` (a part of the tree was rebuild).
Samu is also able to build ninja itself (if you skip the ninja bootstrap
procedure and copy samu to ${worksrcpath}/ninja).
Here's an implementation of the port in case
anyone wants to test:
https://github.com/RJVB/macstrop/blob/master/devel/samurai/Portfile
R
