Content of RPM rh-ruby25-ruby-devel-2.5.5-7.el7.x86_64.rpm :
/etc/rpm/macros.ruby.rh-ruby25
/opt/rh/rh-ruby25/root/usr/include/ruby
/opt/rh/rh-ruby25/root/usr/include/ruby.h
/opt/rh/rh-ruby25/root/usr/include/ruby/backward
/opt/rh/rh-ruby25/root/usr/include/ruby/backward.h
/opt/rh/rh-ruby25/root/usr/include/ruby/backward/classext.h
/opt/rh/rh-ruby25/root/usr/include/ruby/backward/rubyio.h
/opt/rh/rh-ruby25/root/usr/include/ruby/backward/rubysig.h
/opt/rh/rh-ruby25/root/usr/include/ruby/backward/st.h
/opt/rh/rh-ruby25/root/usr/include/ruby/backward/util.h
/opt/rh/rh-ruby25/root/usr/include/ruby/config-x86_64.h
/opt/rh/rh-ruby25/root/usr/include/ruby/config.h
/opt/rh/rh-ruby25/root/usr/include/ruby/debug.h
/opt/rh/rh-ruby25/root/usr/include/ruby/defines.h
/opt/rh/rh-ruby25/root/usr/include/ruby/digest.h
/opt/rh/rh-ruby25/root/usr/include/ruby/encoding.h
/opt/rh/rh-ruby25/root/usr/include/ruby/intern.h
/opt/rh/rh-ruby25/root/usr/include/ruby/io.h
/opt/rh/rh-ruby25/root/usr/include/ruby/missing.h
/opt/rh/rh-ruby25/root/usr/include/ruby/onigmo.h
/opt/rh/rh-ruby25/root/usr/include/ruby/oniguruma.h
/opt/rh/rh-ruby25/root/usr/include/ruby/re.h
/opt/rh/rh-ruby25/root/usr/include/ruby/regex.h
/opt/rh/rh-ruby25/root/usr/include/ruby/ruby.h
/opt/rh/rh-ruby25/root/usr/include/ruby/st.h
/opt/rh/rh-ruby25/root/usr/include/ruby/subst.h
/opt/rh/rh-ruby25/root/usr/include/ruby/thread.h
/opt/rh/rh-ruby25/root/usr/include/ruby/thread_native.h
/opt/rh/rh-ruby25/root/usr/include/ruby/util.h
/opt/rh/rh-ruby25/root/usr/include/ruby/version.h
/opt/rh/rh-ruby25/root/usr/include/ruby/vm.h
/opt/rh/rh-ruby25/root/usr/lib64/libruby.so
/opt/rh/rh-ruby25/root/usr/lib64/pkgconfig/ruby.pc
/opt/rh/rh-ruby25/root/usr/share/licenses/rh-ruby25-ruby-devel-2.5.5
/opt/rh/rh-ruby25/root/usr/share/licenses/rh-ruby25-ruby-devel-2.5.5/BSDL
/opt/rh/rh-ruby25/root/usr/share/licenses/rh-ruby25-ruby-devel-2.5.5/COPYING
/opt/rh/rh-ruby25/root/usr/share/licenses/rh-ruby25-ruby-devel-2.5.5/COPYING.ja
/opt/rh/rh-ruby25/root/usr/share/licenses/rh-ruby25-ruby-devel-2.5.5/GPL
/opt/rh/rh-ruby25/root/usr/share/licenses/rh-ruby25-ruby-devel-2.5.5/LEGAL