#0  ref (this=<optimized out>) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86_64.h:121
  [Error: ../../include/QtCore/../../src/corelib/arch/qatomic_x86_64.h was not found in source tree]
#1  QList (this=0x7f242525d818 <QPrinterInfoPrivate::shared_null+24>) at ../../include/QtCore/../../src/corelib/tools/qlist.h:121
  [Error: ../../include/QtCore/../../src/corelib/tools/qlist.h was not found in source tree]
#2  QPrinterInfoPrivate (name=..., this=0x7f242525d800 <QPrinterInfoPrivate::shared_null>) at painting/qprinterinfo_p.h:71
  [Error: painting/qprinterinfo_p.h was not found in source tree]
#3  __static_initialization_and_destruction_0 (__initialize_p=1, __priority=65535) at painting/qprinterinfo.cpp:35
  [Error: painting/qprinterinfo.cpp was not found in source tree]
#4  _GLOBAL__sub_I_qprinterinfo.cpp(void) () at painting/qprinterinfo.cpp:163
  [Error: painting/qprinterinfo.cpp was not found in source tree]
#5  0x00007f244d6815ba in ?? ()
#6  0x0000000000000002 in ?? ()
#7  0x0000000000000003 in ?? ()
#8  0x00007ffce4f62588 in ?? ()
#9  0x0000000002ab35b0 in ?? ()
#10 0x0000000003589840 in ?? ()
#11 0x00007f244d6816cb in ?? ()
#12 0x0000000002a333c0 in ?? ()
#13 0x0000000000000000 in ?? ()