At the time of the last Lintian run, the following possible problems were found in packages maintained by John Horigan <email@example.com>, listed by source package. See also the full report, including info, experimental and overridden tags. Also see their QA overview.
agg (1:2.6.0-r132+dfsg1-3) §
libagg2 (1:2.6.0-r132+dfsg1-3+b1; main)
- on symbol _ZN3agg11pod_bvectorINS_18vcgen_markers_term10coord_typeELj6EE14allocate_blockEj@Base and 1 others
- on symbol _ZN3agg18conv_adaptor_vcgenINS_28simple_polygon_vertex_sourceENS_12vcgen_strokeENS_12null_markersEE6vertexEPdS5_@Base