On Mon, Aug 5, 2019 at 5:01 AM Jerry Geis <jerry.geis at gmail.com> wrote: > Thanks John for the info... I did that and now I'm missing a file. > I tried to ask yum what package I need - but It did not know. > > > Building native extensions. This could take a while... > ERROR: Failed to build gem native extension. > > /opt/rh/rh-ruby22/root/usr/bin/ruby -r > ./siteconf20190805-94063-1gebs0u.rb extconf.rb > mkmf.rb can't find header files for ruby at > /opt/rh/rh-ruby22/root/usr/share/include/ruby.h most typically .h files are included in a -dev package, but I dunno about this one. googling rh-ruby22, I find, oops, its EOL, and replaced with rh-ruby23 https://www.softwarecollections.org/en/scls/rhscl/rh-ruby23/ btw, with the SCL stuff, note the "scl enable rh-ruby23 bash" command, that spawns you a shell with that packages directories in the path... that might make this work. see that page for more details, including a gem run. -- -john r pierce recycling used bits in santa cruz