[Pkg-electronics-devel] Bug#629776: sbuild isn't attempting alternative dependencies

[Wesley J. Landaker]

In the build log we see:

Merged Build-Depends: ..., python-gtk2 (<< 2.10) | python-gobject, ...
Filtered Build-Depends: ..., python-gtk2 (<< 2.10), ...

So before it even tried to install dependencies, it pruned out all the 
alternatives. When the first alternative failed, it didn't go back and try 
the other alternative that would have worked.

1) Is there a rule that says that the first depedency in a list of 
alternatives MUST work?

2) If not, isn't this a bug in / limitation of sbuild?

3) If it's not a bug, but a known limitation, shouldn't this not be used to 
indicate the buginess of other packages?

Anyway, the fix or workaround (whichever it is) is probably just to reorder 
to put python-gobject first in the dependency list.
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