bash-3.1$ patch -p1 <  ruby-multilib.patch          
patching file mkconfig.rb
patching file configure.in
Hunk #1 succeeded at 1438 (offset 14 lines).
bash-3.1$ patch -p1 < ruby-multilib.patch
patching file mkconfig.rb
Reversed (or previously applied) patch detected!  Assume -R? [n] _r
Apply anyway? [n] y
Hunk #1 FAILED at 74.
1 out of 1 hunk FAILED -- saving rejects to file mkconfig.rb.rej
patching file configure.in
Reversed (or previously applied) patch detected!  Assume -R? [n] -R
Apply anyway? [n] y
Hunk #1 FAILED at 1438.
1 out of 1 hunk FAILED -- saving rejects to file configure.in.rej
bash-3.1$