https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120809
--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to David Malcolm from comment #4) > I figured it out: r16-1631-g2334d30cd8feac added optional generation of SVG > diagrams to the generated HTML, by invoking "dot -Tsvg". state-diagram-5.c > is the only testcase in the suite that invokes this behavior, and I didn't > bulletproof the code fully against failure. The test case hits the > assertion and ICEs if the dot invocation fails (e.g. dot isn't installed). > > Sorry about this; I'm working on a fix. Oh I see, yes I don't think I have dot installed on the machine which I am testing. I was doing a cross build too.