Re: [libvirt] [PATCH] spec: Guess rhel/fedora macros from dist

On Wed, Mar 16, 2011 at 09:31:13 -0600, Eric Blake wrote: > This works for one-shot evaluation: > > # if neither fedora nor rhel was defined, try to guess them from %{dist} > %if !0%{?rhel} && !0%{?fedora} > %define rhel %{lua: v=string.match(rpm.expand("%{?dist}"), > "^%.el([0-9]+).*"); if v ~= nil then print(v) end} > %define fedora %{lua: v=string.match(rpm.expand("%{?dist}"), > "^%.fc?([0-9]+).*"); if v ~= nil then print(v) end} > %endif Hmm, this is nice in avoiding forks but it unfortunately doesn't seem to work on RHEL-5: error: lua script failed: [string "<lua>"]:1: attempt to call field `match' (a nil value) 1< (empty) 0< %if 0 error: line 18: %if 0