(gst-plugin-scanner:8559): GStreamer-WARNING **: Failed to load plugin '/build/farstream-0.1/src/farstream/python/.libs/farstream.so': /build/farstream-0.1/src/farstream/python/.libs/farstream.so: undefined symbol: PyExc_ImportError
DOC Building XML
../../farstream/fs-codec.c:141: warning: Symbol name not found at the start of the comment block.
../../farstream/fs-codec.c:222: warning: Symbol name not found at the start of the comment block.
../../farstream/fs-rtp.c:75: warning: Symbol name not found at the start of the comment block.
../../farstream/fs-rtp.c:122: warning: Symbol name not found at the start of the comment block.
../../farstream/fs-rtp.c:165: warning: Symbol name not found at the start of the comment block.
../../farstream/fs-candidate.c:77: warning: Symbol name not found at the start of the comment block.
../../farstream/fs-candidate.c:131: warning: Symbol name not found at the start of the comment block.
../../farstream/fs-utils.c:114: warning: Symbol name not found at the start of the comment block.
DOC Building HTML
../xml/fs-conference.xml:81: parser error : Opening and ending tag mismatch: refsect1 line 74 and para
</para></para>
^
../xml/fs-conference.xml:94: parser error : Opening and ending tag mismatch: para line 92 and refsect1
</refsect1>
^
../farstream-libs-docs.sgml:23: element include: XInclude error : could not load ../xml/fs-conference.xml, and no fallback was found
../xml/fs-session.xml:134: parser error : Opening and ending tag mismatch: refsect1 line 123 and para
</para></para>
^
../xml/fs-session.xml:229: parser error : Opening and ending tag mismatch: para line 227 and refsect1
</refsect1>
^
../farstream-libs-docs.sgml:25: element include: XInclude error : could not load ../xml/fs-session.xml, and no fallback was found
../xml/fs-stream.xml:121: parser error : Opening and ending tag mismatch: refsect1 line 111 and para
</para></para>
^
../xml/fs-stream.xml:180: parser error : Opening and ending tag mismatch: para line 178 and refsect1
</refsect1>
^
../farstream-libs-docs.sgml:26: element include: XInclude error : could not load ../xml/fs-stream.xml, and no fallback was found
Makefile:733: recipe for target 'html-build.stamp' failed
make[3]: *** [html-build.stamp] Error 6
make[3]: Leaving directory '/build/farstream-0.1/src/farstream/docs/libs'
Makefile:458: recipe for target 'all-recursive' failed
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory '/build/farstream-0.1/src/farstream/docs'
Makefile:589: recipe for target 'all-recursive' failed
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory '/build/farstream-0.1/src/farstream'
Makefile:496: recipe for target 'all' failed
make: *** [all] Error 2
==> ERROR: A failure occurred in build().
Aborting...
==> ERROR: Build failed, check /var/lib/archbuild/extra-x86_64/joel/build


Steps to reproduce:

sudo extra-x86_64-build