--- xplot.c.orig	Wed Jul  2 13:26:09 1997
+++ xplot.c	Sat Aug  1 00:12:42 1998
@@ -46,7 +46,7 @@
 #include <X11/cursorfont.h>
 #include <math.h>
 #include <ctype.h>
-#include <malloc.h>
+#include <stdlib.h>
 #include "xplot.h"
 #include "coord.h"
 
@@ -813,9 +813,7 @@
     static struct dpy_info {
       unsigned long line_plane_mask;
       Colormap clr_map;
-      XColor clr;
-      unsigned long pixel[NCOLORS];
-      int Colors[NCOLORS];
+      unsigned long Colors[NCOLORS];
       int virgin;
       Atom xplot_nagle_atom;
       Display *saved_dpy;
@@ -842,38 +840,37 @@
     /* Allocate some color cells */
       
     if (d_i[d].virgin ) {
+      int usewhite;
+
       d_i[d].virgin = 0;
       
       d_i[d].xplot_nagle_atom = XInternAtom(pl->dpy, "XPLOT_NAGLE", False);
 
       d_i[d].clr_map = DefaultColormap(pl->dpy, DefaultScreen(pl->dpy));
       
-      if ( option_mono ||
-
-	   ! XAllocColorCells(pl->dpy, 
-			      d_i[d].clr_map, 0,
-			      &d_i[d].line_plane_mask, 1,
-			      d_i[d].pixel, NColors) )
-	{
-	  /* probably only one bit plane, or all the color cells are taken */
-#if 1
-	  if (! option_mono)
-	    fputs("XAllocColorCells failed, will only have one plot color\n",
-		  stderr);
-#endif
-	  for ( i = 0; i < NColors; i++) {
-	    d_i[d].Colors[i] = WhitePixelOfScreen(pl->screen);
-	  }
-	} else {
-	  for (i = 0; i < NColors; i++)  {
-	    XParseColor(pl->dpy, d_i[d].clr_map, ColorNames[i], &d_i[d].clr);
-	    d_i[d].clr.pixel = d_i[d].pixel[i];
-	    XStoreColor (pl->dpy, d_i[d].clr_map, &d_i[d].clr);
-	    d_i[d].clr.pixel |= d_i[d].line_plane_mask;
-	    XStoreColor (pl->dpy, d_i[d].clr_map, &d_i[d].clr);
-	    d_i[d].Colors[i] = d_i[d].clr.pixel;
+      if ( option_mono ) {
+	usewhite = 1;
+      } else {
+	usewhite = 0;
+
+	for (i = 0; i < NColors; i++)  {
+	  XColor alloc, exact;
+
+	  if (XAllocNamedColor(pl->dpy, d_i[d].clr_map, ColorNames[i],
+		      &alloc, &exact) == 0) {
+	    XFreeColors(pl->dpy, d_i[d].clr_map, d_i[d].Colors, i, NULL);
+	    usewhite = 1;
+	    fprintf(stderr, "unable to allocate color \"%s\", falling back to only one plot color\n", ColorNames[i]);
+	    break;
 	  }
+	  d_i[d].Colors[i] = alloc.pixel;
+	}
+      }
+      if ( usewhite ) {
+	for ( i = 0; i < NColors; i++) {
+	  d_i[d].Colors[i] = WhitePixelOfScreen(pl->screen);
 	}
+      }
     }
     
     for (i = 0; i < NColors; i++) {