Comment # 7 on bug 1108422 from Stasiek Michalski

The current method of installing icons:
https://github.com/yast/yast-theme/blob/master/icons/hicolor/64x64/apps/Makefile.am
won't work with symlinks.

Build tools refer to the module that creates makefiles that are used for
further installation: https://github.com/yast/yast-devtools