port devel/doxygen failing to test on -CURRENT and -STABLE

[Chris Rees]

Hi all / David,

doxygen has been failing for a while now on -CURRENT and apparently
-STABLE too.  The current fix is disabling one of the tests in the
build, but obviously it points to a problem with our base system....

I've trussed [1] the failing code [2], and it looks as though it's
hanging on a _umtx call.  I'm gratuitously ignorant of what goes on
there... but the timings of recent commits to umtx.h [3] could
indicate a link (hope it's not bogus...).

Any pointers on what I should do next?

Chris

[1] http://www.bayofrum.net/~crees/scratch/doxygen-truss

[2] http://www.bayofrum.net/tb/index.php?action=display_markup_log&build=10-local&id=1037

[3] http://svnweb.freebsd.org/base/head/sys/sys/umtx.h?view=log