Welcome to the forum. Your post is still flagged as "This post has NOT been accepted by the mailing list yet", so nobody gets it unless they look. You need to subscribe to the mailing list <http://forum.openscad.org/mailing_list/MailingListOptions.jtp?forum=1> , and CLICK THE LINK in the registration email. I've quoted your post for the linux guru's to ponder... tm_cad wrote > Hello. > > Downloaded the nightly, several times, and re-ran the wiki manual > instructions for building on Linux (Debian). Re-built everything > including openscad_deps. No errors and the binary is produced but when > run it segfaults immediately showing libQtGui.so.4.8.6 as the likely > candidate for the problem. I see references to Qt5 in the compiling > output but I'm at a loss to find a way keep it all at v4 or 5. A search > on the error comes up in google but nothing helpful, so far. Here it is: > > [404912.575116] openscad[3851]: segfault at 7fbb58f73550 ip > 00007fbb569eecdc sp 00007ffc788d9e50 error 7 in > libQtGui.so.4.8.6[7fbb5683a000+aa3000] > > Suggestions, please. > > > thanks, > tjm ----- Admin - PM me if you need anything, or if I've done something stupid... Unless specifically shown otherwise above, my contribution is in the Public Domain; to the extent possible under law, I have waived all copyright and related or neighbouring rights to this work. Obviously inclusion of works of previous authors is not included in the above. The TPP is no simple “trade agreement.” Fight it! http://www.ourfairdeal.org/ time is running out! -- View this message in context: http://forum.openscad.org/Starting-here-with-compile-problem-tp20613p20622.html Sent from the OpenSCAD mailing list archive at Nabble.com.

>> Downloaded the nightly, several times, and re-ran the wiki manual >> instructions for building on Linux (Debian). Re-built everything >> including openscad_deps. No errors and the binary is produced but when >> run it segfaults immediately showing libQtGui.so.4.8.6 as the likely >> candidate for the problem. I see references to Qt5 in the compiling >> output but I'm at a loss to find a way keep it all at v4 or 5. A search >> on the error comes up in google but nothing helpful, so far. Here it is: >> This sounds like the binary is linked against both Qt4 and Qt5. That's always going to crash. You can verify this by running ldd ../path/to/openscad The main question is where this is coming from. One common case we saw in the past was linking against the wrong libqscintilla (e.g. building OpenSCAD against Qt5 but linking the Qt4 qscintilla) CGAL also has some Qt extensions, so it could also come from there, although I never had that on Debian. ciao, Torsten.