$ openapp --debug TextEdit
GNU gdb (Gentoo 7.6.2 p1) 7.6.2
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "i686-pc-linux-gnu".
For bug reporting instructions, please see:
<http://bugs.gentoo.org/>...
Reading symbols from /usr/lib/GNUstep/Applications/TextEdit.app/TextEdit...done.
(gdb) run
Starting program: /usr/lib/GNUstep/Applications/TextEdit.app/TextEdit 
warning: Could not load shared library symbols for linux-gate.so.1.
Do you need "set solib-search-path" or "set sysroot"?
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/libthread_db.so.1".

Program received signal SIGSEGV, Segmentation fault.
+[NSFont _fontWithName:size:role:] (self=0xbfffe164, _cmd=0xbfffe164, aFontName=0xb7cf4370 <+[NSFont _fontWithName:size:role:]>, fontSize=0, aRole=160) at NSFont.m:738
738       CGFloat fontMatrix[6] = { 0, 0, 0, 0, 0, 0 };
(gdb) bt
#0  +[NSFont _fontWithName:size:role:] (self=0xbfffe164, _cmd=0xbfffe164, aFontName=0xb7cf4370 <+[NSFont _fontWithName:size:role:]>, fontSize=0, aRole=160)
    at NSFont.m:738
#1  0xb7cf37e3 in getNSFont (fontSize=0, role=2) at NSFont.m:355
#2  0xb7cb40ad in -[NSCell initImageCell:] (self=0xbfffe204, _cmd=0xbfffe204, anImage=0xbfffe204) at NSCell.m:164
#3  0xb7c7fb97 in +[NSAppIconView initialize] (self=0xbfffe234, _cmd=0xbfffe234) at NSApplication.m:528
#4  0xb75cb951 in objc_send_initialize (object=<optimized out>) at /var/temp/portage/gnustep-base/libobjc2-1.7/work/libobjc2-1.7/dtable.c:763
#5  0xb75d2841 in objc_msg_lookup_internal (receiver=<optimized out>, selector=<optimized out>, sender=<optimized out>)
    at /var/temp/portage/gnustep-base/libobjc2-1.7/work/libobjc2-1.7/sendmsg2.c:73
#6  objc_msg_lookup_sender (receiver=<optimized out>, selector=0xb7f27c30 <.objc_selector_list+2576>, sender=0xbfffe2e4)
    at /var/temp/portage/gnustep-base/libobjc2-1.7/work/libobjc2-1.7/sendmsg2.c:171
#7  0xb75d271d in slowMsgLookup (receiver=0xbfffe314, cmd=0xbfffe314) at /var/temp/portage/gnustep-base/libobjc2-1.7/work/libobjc2-1.7/sendmsg2.c:116
#8  0xb75d3a32 in objc_msgSend () at /var/temp/portage/gnustep-base/libobjc2-1.7/work/libobjc2-1.7/objc_msgSend.x86-32.S:64
#9  0xb7c86ddf in -[NSApplication(Private) _appIconInit] (self=0x81df9f0, _cmd=0xbfffe340) at NSApplication.m:3806
#10 0xb7c80cb2 in -[NSApplication _init] (self=0xbfffe3c0, _cmd=0xbfffe3c0) at NSApplication.m:924
#11 0xb77f39a8 in -[NSObject performSelector:withObject:] (self=0x81df9f0, _cmd=<optimized out>, aSelector=0xb7f27940 <.objc_selector_list+1824>, anObject=0x1cc)
    at NSObject.m:2034
#12 0xb78475e3 in -[NSObject(NSThreadPerformAdditions) performSelector:onThread:withObject:waitUntilDone:modes:] (self=0xa0, _cmd=0xbfffe420, 
    aSelector=0xb7f27940 <.objc_selector_list+1824>, aThread=<optimized out>, anObject=0x81df9f0, aFlag=<optimized out>, anArray=<optimized out>) at NSThread.m:1245
#13 0xb78471fd in -[NSObject(NSThreadPerformAdditions) performSelectorOnMainThread:withObject:waitUntilDone:modes:] (self=<optimized out>, _cmd=0xbfffe460, 
    aSelector=<optimized out>, anObject=0x81df9f0, aFlag=<optimized out>, anArray=0x8266700) at NSThread.m:1200
#14 0xb7847257 in -[NSObject(NSThreadPerformAdditions) performSelectorOnMainThread:withObject:waitUntilDone:] (self=0xbfffe490, _cmd=0xbfffe490, aSelector=0xbfffe490, 
    anObject=0xbfffe490, aFlag=144 '\220') at NSThread.m:1214
#15 0xb7c80f20 in -[NSApplication init] (self=0x81df9f0, _cmd=<optimized out>) at NSApplication.m:978
#16 0xb7c809c6 in +[NSApplication sharedApplication] (self=<optimized out>, _cmd=0xbfffe500) at NSApplication.m:850
#17 0xb7c68804 in NSApplicationMain (argc=-1073748704, argv=0xbfffe520) at Functions.m:78
#18 0x4e4f5ec1 in __libc_start_main () from /lib/libc.so.6
#19 0x08053ba1 in _start ()
(gdb) c
Continuing.

Program terminated with signal SIGSEGV, Segmentation fault.
The program no longer exists.
(gdb) q