Installing of the port OR the package gives this: Unable to find pthread_create symbol. Aborting. Abort trap (core dumped) The exe is installed, however ALL the output drivers are unusable. It outputs this for ANY -Txx : There is no layout engine support for "dot" Perhaps "dot -c" needs to be run (with installer's privileges) to register the plugins? Perhaps it has to something about this issue: https://lists.freebsd.org/pipermail/freebsd-ports/2013-February/081302.html
Fix Summary and assign.
Please try a build with option NVTHREADS . Please report if you have nvidia driver or nor.
I can confirm rebuilding with NVTHREADS it works. Yes, I have an NVIDIA driver. I'm just wondering why this is connected to the graphic chipset. What if I had AMD GPU? Lev
The nvidia drives changes some libs of the X11 system. The nvidia libs are build with threads, The standard libs are build without. Graphviz does not uses threads, but when linking with the threaded libs it fails. This might cause problem for non-threaded applications linking with Graphviz. *** This bug has been marked as a duplicate of bug 203537 ***