Follow-up Comment #3, bug #36706 (project gnustep): Here is the relevant part of the traceback (obtained with base-1.24): You can see that the class passed to class_getMethodImplementation is the value of the receiver parameter passed to gs_objc_msg_forward2.
#2 0x005babe3 in +[NSException raise:format:] (self=0x88ca60, _cmd=0x8dd778, name=0x88cd18, format=0x8dd8d0) at NSException.m:835 #3 0x006df05b in gs_objc_msg_forward2 (receiver=0x1b8cbc0, sel=0x80d10f0) at GSFFIInvocation.m:197 #4 0x00922433 in get_imp () from /usr/lib/i386-linux-gnu/libobjc.so.2 #5 0x006e0538 in class_getMethodImplementation (cls=0x1b8cbc0, name=0x80d10f0) at runtime.c:496 #6 0x00616548 in -[NSObject performSelector:] (self=0x82e217c, _cmd=0x1b88908, aSelector=0x80d10f0) at NSObject.m:1976 _______________________________________________________ Reply to this item at: <http://savannah.gnu.org/bugs/?36706> _______________________________________________ Message sent via/by Savannah http://savannah.gnu.org/ _______________________________________________ Bug-gnustep mailing list Bug-gnustep@gnu.org https://lists.gnu.org/mailman/listinfo/bug-gnustep