On 10/22/2012 10:43 PM, Tom Callaway wrote:
On 10/22/2012 12:09 PM, Ralf Corsepius wrote:
There is currently no way to "undefine" a macro at the rpm commandline,
rpmbuild --define "xxxx %{nil}" ?
Huh, I swear I knew that once. :) Attached is a patch to use the %{nil}
behavior instead of setting the unused dist macro to 0. I smoke tested
and confirmed that the %{rhel} macro is unset on Fedora with this patch
applied.
I haven't tried your patch, but don't you have to unset/define %{nil}
all build-host related rpm macros from /etc/rpm/macros.dist?
It's at least what I can not avoid doing in my before-mentioned
build-scripts.
I.e. when running my script on Fedora 17, I invoke rpmbuild this way:
rpmbuild ... \
--define "fedora %{nil}" --define "fc17 %{nil}"
--define "dist .el6" --define "rhel 6" --define "el6 1"
...
Otherwise constructs such as
%{?fc17:xxxx}
%{?el6:yyyy}
also won't work correctly in rpm.specs.
IIUC, fedpkg with your patch sets %dist and unsets %fedora, but it
doesn't seem to catch "fc17".
Ralf
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