ftp.nice.ch/pub/next/developer/resources/libraries/libtclobjc.1.0.s.tar.gz#/libtclobjc-1.0/checkTk.m

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#include "Tk.h"
 
 int main (int argc, char *argv[])
 {
   id tk = [[Tk alloc] initWithArgc:argc argv:argv];
   [tk promptAndEval];
   exit(0);
 }

These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.