I just went on to build new Slackware packages for GNUstep and ran into an issue in -make. Some man pages, listed on the makefile are not included in the Documentation directory. I'm not in the computer that is building the packages (as it's currently building the other packages) but some of the missing man pages are
debugapp.1 and gnustep-config.1.
This is when installing make 2.0.3 (the tar.gz archive don't have these files). They're in the SVN though.