This spec is an attempt to push for a stable replacement of Ruby 1.8.x with 1.9.2+ on RHEL based systems. I have based it off of the work of FrameOS specs for Ruby 1.9.2 and Ruby Enterprise Edition.

yum install -y rpm-build rpmdevtools
rpmdev-setuptree
cd ~/rpmbuild/SOURCES
wget http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.X-pXXX.tar.gz
cd ~/rpmbuild/SPECS
curl https://raw.github.com/imeyer/ruby-1.9.X-rpm/master/ruby19.spec > ruby19.spec
rpmbuild -bb ruby19.spec
rpm -Uvh ~/rpmbuild/RPMS/x86_64/ruby-1.9.XpXXX-X.ruby-1.9.XpXXX-X.i386.rpm

PROFIT!

• Builds
• Installs
• Overwrites/upgrades your currently installed ruby package (DANGEROUS)

• Split packages into ruby-libs, ruby-devel, etc (looking for help here)
• Install alongside Ruby 1.8.x

Tested working (as sane as I could test for) on:

• RHEL 5.6 x86_64
• RHEL 6 x86_64
• RHEL 6.1 x86_64
• RHEL 6.1 i686
• CentOS 5.6 x86_64

This is by no means, correct, or sane. Nor does it follow any sort of policy for packaging. I leave that to the people who are most familiar with such things, and will willingly accept patches that add those features.