This was embarrassing. I never pushed my commits to github. I have done so now, and have verified that the patch has been incorporated by using install_github as below. For me it works, with my ubunutu-like compiler settings, but I would love to get confirmation. Please try it and report back. Best, Kasper On Apr 29, 2014, at 3:06 AM, Frederiek - Maarten Kerckhof <frederiekmaarten.kerckhof at="" ugent.be=""> wrote: > install_github("kasperdanielhansen/Rgraphviz")