ftp.nice.ch/pub/next/unix/developer/plplot.3.0.s.tar.gz#/plplot/src/plwid.c

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/* Sets line width */

#include "plplot.h"

void plwid(width)
int width;
{
      int level;

      glev(&level);
      if (level < 1)  plexit("Please call plstar before calling plwid.");

      swid(width);
      grwid();
}

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