On Tue, Apr 02, 2013 at 04:40:03PM -0400, Darryl L. Pierce wrote: > On Tue, Apr 02, 2013 at 03:50:26PM -0400, Colin Walters wrote: > > On Tue, 2013-04-02 at 15:31 -0400, Darryl L. Pierce wrote: > > > > > When python3 is installed then, with both projects, Cmake finds Python > > > 3. > > > > This seems like either a bug in Cmake or your project (not sure which) - > > if it's possible to explicitly specify that you want Python 2, then you > > should be doing so. Likewise, if a project wants Python 3, you should > > also explicitly say so, at least in the build configuration (spec file, > > bitbake recipe, debian/rules etc.). > > > > Basically while it's sometimes sane for a component to auto-detect from > > the environment which Python to use, you should generally configure it > > explicitly to use whichever one you want. > > > > See also: > > https://mail.gnome.org/archives/desktop-devel-list/2012-November/msg00014.html > > > > Where the conclusion for GNOME was that modules should accept > > --with-python to specify exactly which Python they want. See also > > http://pkgs.fedoraproject.org/cgit/pygobject3.git/tree/pygobject3.spec#n163 > > which is accomplishing this in a slightly different way. > > I found the problem, but it seems to be in Cmake. > > find_package(PythonInterp 2.7 REQUIRED) > > works as expected and finds Python 2.7. However: > > find_package(PythonLibs 2.7 REQUIRED) > > _always_ comes back with the Python 3 library instead of the 2.7 > library. Bingo! http://bugzilla.redhat.com/show_bug.cgi?id=876118 -- Darryl L. Pierce <mcpierce@xxxxxxxxx> http://mcpierce.multiply.com/ "What do you care what people think, Mr. Feynman?"
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