The page https://en.opensuse.org/openSUSE:Packaging_Go is outdated.

In particular, the macro %gofilelist the page advises to use is broken, and
macros %go_provides and %go_nostrip no longer exist.

Finally, once I package a library building with it is rather difficult. It is
installed in a directory go does not search and I found no macro useful for
setting gopath so the packaged libraries would be included in the search path.