diff -uNr GMT4.4.0/src/pslib.c GMT4.4.0_noindex/src/pslib.c
--- GMT4.4.0/src/pslib.c	2009-02-06 06:53:45.000000000 +0900
+++ GMT4.4.0_noindex/src/pslib.c	2009-05-20 20:25:50.000000000 +0900
@@ -455,8 +455,11 @@
 	id = ((PSL->internal.color_mode & PSL_CMYK) && abs(nbits) == 24) ? 2 : ((abs(nbits) == 24) ? 1 : 0);
 	it = nx < 0 ? 1 : (nbits < 0 ? 2 : 0);	/* Colormask or interpolate */
 
+/*
 	if ((image = ps_makecolormap (buffer, nx, ny, nbits))) {
+*/
 		/* Creation of colormap was successful */
+/*
 		nbits = ps_bitreduce (image->buffer, nx, ny, image->colormap->ncolors);
 
 		if (PSL->internal.comments) fprintf (PSL->internal.fp, "\n%% Start of %s Adobe Indexed %s image [%d bit]\n", kind[PSL->internal.ascii], colorspace[id], nbits);
@@ -467,12 +470,15 @@
 		fprintf (PSL->internal.fp, "U\n");
 		if (PSL->internal.comments) fprintf (PSL->internal.fp, "%% End of %s Adobe Indexed %s image\n", kind[PSL->internal.ascii], colorspace[id]);
 
+*/
 		/* Clear the newly created image buffer and colormap */
+/*
 		ps_free (image->buffer);
 		ps_free (image->colormap);
 		ps_free (image);
 	}
 	else {
+*/
 		/* Export full RGB or CMYK image */
 		nbits = abs(nbits);
 
@@ -494,7 +500,9 @@
 		ps_stream_dump (buffer, nx, ny, nbits, PSL->internal.compress, PSL->internal.ascii, 0);
 		fprintf (PSL->internal.fp, "U\n");
 		if (PSL->internal.comments) fprintf (PSL->internal.fp, "%% End of %s Adobe %s image\n", kind[PSL->internal.ascii], colorspace[id]);
+/*
 	}
+*/
 }
 
 /* fortran interface */