> Hi there. My apologies if this is something that's covered in
> documentation somewhere... but, due to the inability to google for
> punctuation, I'm finding it a bit hard to locate the appropriate
> docs. I've done what I think is a reasonable amount of manual
> searching of documentation without coming up with anything.
I had the same question.
> I often see spec files that reference defines which appear to be set
> by the OS... for example, phrases like "%if 0%{?rhel}". Where are
> these defined? I can't find references in the files in /usr/lib/rpm/
> or /etc/rpm/, and can't see a list of these defines in the available
> documentation.
This is what I've gathered:
In Fedora there is a file /etc/rpm/macros.dist that comes with the
fedora-release package. It defines (this is for fedora 8, increment
accordingly):
%fedora 8
%dist .fc8
%fc8 1
For EPEL (the extra packages for enterprise linux) I was told the build
system provides the macro definitions. The ones i've seen are (basing on
5, change accordingly):
%rhel 5
%dist .el5
I recently put in a bug requesting the same macros.dist file for any RHEL
they would be willing to add it to
(https://bugzilla.redhat.com/show_bug.cgi?id=481023).
The only thing I've seen for SUSE was a %{is_suse} in the func packages. I
doubt thats what they actually use internally.
The %if 0%?{rhel} ... basically translates so that if %rhel isn't defined
you still have a 0 to use in the equation.
> Is there a relatively complete list of these defines somewhere? Is
> there a config file in each RPM-using OS where a local one is
> defined? Pointers would be quite welcome.
anyone else? I'd love to know myself.
-greg
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