I just ran into this...

Making all for bundle PrefsApp...
  Compiling file PrefsAppView.m ...
PrefsAppView.m: In function `-[PrefsAppView initWithOwner:andFrame:]':
PrefsAppView.m:53: warning: dereferencing type-punned pointer will break 
strict-aliasing rules
PrefsAppView.m:54: warning: dereferencing type-punned pointer will break 
strict-aliasing rules
PrefsAppView.m:61: warning: dereferencing type-punned pointer will break 
strict-aliasing rules
PrefsAppView.m:69: warning: dereferencing type-punned pointer will break 
strict-aliasing rules
PrefsAppView.m:77: warning: dereferencing type-punned pointer will break 
strict-aliasing rules
PrefsAppView.m:85: warning: dereferencing type-punned pointer will break 
strict-aliasing rules
gmake[2]: *** [shared_obj/ix86/netbsdelf/gnu-gnu-gnu/PrefsAppView.o] Error 1
gmake[1]: *** [PrefsApp.all.bundle.variables] Error 2
gmake[1]: Leaving directory 
`/usr/pkgsrc/x11/gnustep-preferences/work.i386/Preferences-1.2.0/Modules/PrefsApp'
gmake: *** [internal-all] Error 2
*** Error code 2

Stop.
make: stopped in /usr/pkgsrc/x11/gnustep-preferences
*** Error code 1


Seems like a problem with the "initWithFrame" message. I'm not really 
sure how to track it down, though.

Louis