В пакете rpm-macros-ruby макрос имеет имя %ruby_gemspecdir,
в ~12 пакетах используется %rubygem_specdir:

g/gem-colorator/colorator.spec:%rubygem_specdir/*
g/gem-em-websocket/em-websocket.spec:%rubygem_specdir/*
g/gem-forwardable-extended/forwardable-extended.spec:%rubygem_specdir/*
g/gem-jekyll-sass-converter/jekyll-sass-converter.spec:%rubygem_specdir/*
g/gem-jekyll-watch/jekyll-watch.spec:%rubygem_specdir/*
g/gem-kramdown-parser-gfm/kramdown-parser-gfm.spec:%rubygem_specdir/*
g/gem-mercenary/mercenary.spec:%rubygem_specdir/*
g/gem-pathutil/pathutil.spec:%rubygem_specdir/*
g/genspec/genspec.spec:- Update Ruby templates: remove ruby-tool-setup, add %%rubygem_specdir/*.
o/opennebula/opennebula.spec:#%rubygem_specdir/opennebula*
o/opennebula/opennebula.spec:#%exclude %rubygem_specdir/opennebula-cli*
o/opennebula/opennebula.spec:#%rubygem_specdir/opennebula-server/Gemfile
r/rpm-build-ruby/rpm-build-ruby.spec:- Add %%rubygem_specdir macro for Ruby gem specification directory.
r/ruby-makeconf/makeconf.spec:%rubygem_specdir/*