Em Mon, 17 Jul 2017 10:15:26 +0200 Markus Heiser <markus.heiser@xxxxxxxxxxx> escreveu: > > Am 17.07.2017 um 00:08 schrieb Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx>: > > > > [1] There's an unrelated bug with the Kernel's sphinx extension > > kimage: when parsing GraphViz graphs, it uses "-Tpdf" argument, > > in order to generate a PDF image. That doesn't work on some > > distros, as GraphViz doesn't support PDF images. > > > > Hmm .. http://www.graphviz.org/content/output-formats#dpdf > > Is it a problem of the GraphViz version? > > See http://www.graphviz.org/News.php .. > > """New Release 2.32 (1 August 2013) > > ... In addition, if the poppler library is available, Graphviz > can now use PDF files as images.""" > > I suppose that 2.32 is in your distro .. it's from 2013 Fedora 26 is shipped with version 2.40: $ rpm -q graphviz graphviz-2.40.1-4.fc26.x86_64 Yet: $ dot -Thelp|grep pdf Format: "help" not recognized. Use one of: canon cmap cmapx cmapx_np dot dot_json eps fig gv imap imap_np ismap json json0 mp pic plain plain-ext pov ps ps2 svg svgz tk vdx vml vmlz xdot xdot1.2 xdot1.4 xdot_json I actually noticed this issue first on OpenSuse, where GraphViz is packaged on several packages, but I was unable to find one package there with pdf suport. I'm pretty sure pdf used to work on F25. > > It seems, that the graphiz homepage is not up to date. I found > the repo at github. There is a issue about PDF > > https://github.com/ellson/graphviz/issues/1180 > > So I guess graphviz is compiled without HAVE_PANGOCAIRO in your > distros? >From Fedora source package, it is requiring both cairo and pango: BuildRequires: cairo-devel >= 1.1.10, pango-devel, gmp-devel, lua-devel, gtk2-devel, libgnomeui-devel Building it gets: checking for PANGOCAIRO... yes Still, no PDF support. I'll try to investigate it further, as I found myself useful to produce PDF directly from GraphViz. Anyway, I guess we should modify kfigure.py to check if PDF is available, falling back to SVG, using ImageMagick to convert from SVG to PDF. Thanks, Mauro -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
