[Fedora-packaging] Checking distro release from spec file

[Lubomir Rintel]

On Mon, 2009-03-16 at 21:29 -0700, Ray Van Dolson wrote:
> On Mon, Mar 16, 2009 at 08:04:52PM -0500, Rex Dieter wrote:
> > Ray Van Dolson wrote:
> >> On Mon, Mar 16, 2009 at 07:51:27PM -0500, Rex Dieter wrote:
> >>> Ray Van Dolson wrote:
> >>>> I'm trying to write a "distro agnostic" spec file that will apply two
> >>>> patches:
> >>>>
> >>>>   - Patch 1 if and only if we're building for EL5 or EL4
> >>>>   - Patch 2 if and only if we're building for EL4
> >>>>
> >>>> I know I can check for EL with the presence of the %{fedora} macro,
> >>> %{fedora} macro is the *fedora* release, for EL, the corresponding 
> >>> macro  is %{rhel}.
> >>>
> >>> In your case. you could use something like:
> >>>
> >>> %if 0%{?rhel} >= 4
> >>> %patch1 ...
> >>> %endif
> >>>
> >>> %if 0%{?rhel} >= 5
> >>> %patch2 ...
> >>> %endif
> >>
> >> Slick.  Thanks Rex.
> >
> > Here's more gory details:
> > https://fedoraproject.org/wiki/Packaging/DistTag
> > (sorry, should've included the link last time).
> >
> 
> Hmm, it doesn't seem like %{rhel}, %{rhl}, %{el#} are set on CentOS.  I
> tried adding an echo <var> to my .spec file for each and they all show
> up empty.

Well, in case you're making an EPEL package, %rhel macro will be defined
in buildsystem, by buildsys-macros package. You can get it here:

http://buildsys.fedoraproject.org/buildgroups/rhel5/i386/

Regards,
-- 
Lubomir Rintel <lkundrak at v3.sk>