On 04/12/2013 06:06 PM, Miroslav Suchý wrote:
Hi,
I'm building packages for software collection (SC). And I'm trying set
up our environment, that we are able to build SC and regular package
from one spec.

I have 4 options how I can build package:

1) When I do not have meta-package installed (just for record meta
package only includes one file /etc/rpm/macros.ruby193-config, which
only contains this definition:
%scl ruby193
) So when I do not have this package installed and want to build regular
package I will run:
   rpmbuild -ba foo.spec
And this will probuce foo.rpm.

2) When I do not have meta package installed and I run:
   rpmbuild -ba --define 'scl ruby193' foo.spec
it will produce ruby193-foo.rpm

3) When I have meta package installed and I run:
   rpmbuild -ba foo.spec
it will produce ruby193-foo.rpm

4) And now I have meta package and despite it I want to produce regular
package (i.e foo.rpm). How can I achieve it?
I tried to experiment with something like:
   rpmbuild -ba --define '%undefine scl' foo.spec
but neither this nor everything else I tried work.

So my question is: How can I undefine macro on rpmbuild command line?

Rpm >= 4.10.2 has --undefine cli switch (eg '--undefine scl'), with older versions you need to abuse --eval to achieve that, eg
--eval '%undefine scl'

        - Panu -
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