Hi,

I try to build current git master (October 3rd, 2017) version on MacOS. I used Macports (+quartz) to install all required libraries and then build with CMake. The build process works and I can install inkscape. I have El Capitan with xcode 7.3. inkscape also opens.

When I click the pen tool I can draw a first line. Clicking in the draw window to start the next line will crash inkscape. The same happens when I try to draw a second elipse. I traced it with the debugger and the problem is that the current selection is cleared. The failure is here:

Process 27826 stopped * thread #1: tid = 0xd6be1e, 0x0000000100d0801a libinkscape_base.dylib`Inkscape::ObjectSet::_clear(this=0x000000010c678e70) + 106 at object-set.cpp:123, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=EXC_I386_GPFLT) frame #0: 0x0000000100d0801a libinkscape_base.dylib`Inkscape::ObjectSet::_clear(this=0x000000010c678e70) + 106 at object-set.cpp:123 120 } 121 122 void ObjectSet::_clear() { -> 123 for (auto object: _container) { 124 _remove(object); 125 } 126 } (lldb) quit

And the calling frames are here:

(lldb) f 3 frame #3: 0x00000001006533fb libinkscape_base.dylib`Inkscape::UI::Tools::PencilTool::root_handler(this=0x0000000112bae100, event=0x000000010672f950) + 91 at pencil-tool.cpp:109 106 107 switch (event->type) { 108 case GDK_BUTTON_PRESS: -> 109 ret = this->_handleButtonPress(event->button); 110 break; 111 112 case GDK_MOTION_NOTIFY: (lldb) f 2 frame #2: 0x00000001006538de libinkscape_base.dylib`Inkscape::UI::Tools::PencilTool::_handleButtonPress(this=0x0000000112bae100, bevent=0x000000010672f950) + 1054 at pencil-tool.cpp:198 195 // This is the first click of a new curve; deselect item so that 196 // this curve is not combined with it (unless it is drawn from its 197 // anchor, which is handled by the sibling branch above) -> 198 selection->clear(); 199 desktop->messageStack()->flash(Inkscape::NORMAL_MESSAGE, _("Creating new path")); 200 m.freeSnapReturnByRef(p, Inkscape::SNAPSOURCE_NODE_HANDLE); 201 } else if (selection->singleItem() && SP_IS_PATH(selection->singleItem())) { (lldb) b pencil-tool.cpp:198

Anybody out there who sees this on MacOS with the quartz backend? Any ideas?

Friedrich