help loading additional macros from file

[Tim Mooney <mooney dogbert cc ndsu NoDak edu>]

All-

I need some macro-fu help.  I want to (in a spec file)

- test to see if a particular macro is defined.
- if it's not, I would like to
	- source/load a file that has additional macro definitions, making
	  them available in my spec file.
	- for extra credit, if the file doesn't exist, exit with an error.


It looks like I can do the test part with something like

%if %{undefined perl_sitelib}

but I'm unsure how to accomplish the "load additional macros from an
external file" part.  I would be using this with rpm 4.0.4 (from RHEL 2.1)
all the way up to current rpm.


Thanks,

Tim
--
Tim Mooney                              mooney dogbert cc ndsu NoDak edu
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