Posted by Rallaz on Apr 23, 2012; 3:07pm
URL: https://forum.librecad.org/Segmentation-fault-in-RS-EntityContainer-optimizeContours-tp5651061p5659632.html

Eric,
I agree with Ries but, if you want to use konsole (1)
the change are:
CONFIG += debug

highly recommended:

http://qt-project.org/doc/qt-4.8/qmake-project-files.html
http://qt-project.org/doc/qt-4.8/qmake-running.html

Qtcreator are very powerful:
debbuger, variable inspector, valgrind, Qt help, class viewer and more...

(1) I like KDE ;-)