a-pygstvalue.lo -MD -MP -MF .deps/_gst_la-pygstvalue.Tpo -c pygstvalue.c  -fPIC -DPIC -o .libs/_gst_la-pygstvalue.o
(cd . \
        && /usr/bin/python /usr/share/pygtk/2.0/codegen/codegen.py \
                --load-types ./arg-types.py \
                --register ./gst-types.defs \
                --override gst.override \
                --prefix pygst gst.defs) > gen-gst.c \
        && cp gen-gst.c gst.c \
        && rm -f gen-gst.c
Traceback (most recent call last):
  File "/usr/share/pygtk/2.0/codegen/codegen.py", line 1707, in ?
    sys.exit(main(sys.argv))
  File "/usr/share/pygtk/2.0/codegen/codegen.py", line 1659, in main
    o = override.Overrides(arg)
  File "/usr/share/pygtk/2.0/codegen/override.py", line 49, in __init__
    self.handle_file(filename)
  File "/usr/share/pygtk/2.0/codegen/override.py", line 81, in handle_file
    self.__parse_override(buf, startline, filename)
  File "/usr/share/pygtk/2.0/codegen/override.py", line 163, in __parse_override
    self.handle_file(filename)
  File "/usr/share/pygtk/2.0/codegen/override.py", line 81, in handle_file
    self.__parse_override(buf, startline, filename)
  File "/usr/share/pygtk/2.0/codegen/override.py", line 130, in __parse_override
    raise RuntimeError("Function %s is being overridden more than once" % (func,))
RuntimeError: Function gst_pad_get_negotiated_caps is being overridden more than once
make[3]: *** [gst.c] Error 1
make[3]: Leaving directory `/var/tmp/portage/dev-python/gst-python-0.8.4/work/gst-python-0.8.4/gst'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/var/tmp/portage/dev-python/gst-python-0.8.4/work/gst-python-0.8.4/gst'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/var/tmp/portage/dev-python/gst-python-0.8.4/work/gst-python-0.8.4'
make: *** [all] Error 2

!!! ERROR: dev-python/gst-python-0.8.4 failed.
Call stack:
  ebuild.sh, line 1576:   Called dyn_compile
  ebuild.sh, line 945:   Called src_compile
  gst-python-0.8.4.ebuild, line 30:   Called die

!!! (no error message)
!!! If you need support, post the topmost build error, and the call stack if relevant.