I can't find the patch in the mail archives, but git://git.suckless.org/sbase has commit ddde8021 (Simplify install/uninstall). With this commit trying to install gives the following result:
% make install scripts/mkproto install /usr/local /usr/local/share/man proto scripts/mkproto: 15: cannot create /usr/local/share/man: Is a directory scripts/install proto scripts/install: 5: cannot open proto: No such file make: *** [Makefile:221: install] Error 2 I wanted to send a patch but I don't grok the code - which I think is quite ironic given the commit message. So I report this as a bug.