Error says it does not know how to make src/python-systemd/id128-constants.h. Fix should be fairly trivial, need to check for HAVE_PYTHON_DEVEL when setting id128_la_SOURCES_DIST.
Fixed by: http://lists.freedesktop.org/archives/systemd-devel/2014-June/020152.html Among other patches in that patchset.
Patch applied.
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