Must be applied after the "svn checkout" step on the "How to Build" wiki:
cd alt-f-read-only
patch -p0 < patch-to-Alt-F-1.0-openSUSE-Leap-15.0.patch
Tested on 2018-09-02
In addition to selecting "Base Development" under "Patterns" in yast2 "Software Management", 'intltools' and 'bc' has to be installed
Diff: