It seems like as a result of bug 202781, it is no longer possible to build Graphviz against Cairo (for rendering support) without USE="gtk". This would be useful on a server where we would like to use graphviz to produce images, but don't need GTK or the dozens of x11-libs that GTK depends on. The cairo USE flag was combined with the gtk flag, even though the use of cairo and gtk should be independent. Reproducible: Always Steps to Reproduce: emerge -p graphviz Actual Results: x11-libs/cairo-1.6.4 (...lots of x11-libs...) x11-libs/gtk+-2.12.9-r2 USE="jpeg tiff -X -cups -debug -doc -vim-syntax -xinerama" media-gfx/graphviz-2.18 USE="gtk*" Expected Results: x11-libs/cairo-1.6.4 media-gfx/graphviz-2.18 USE="cairo"
readded cairo in media-gfx/graphviz-2.20.2.