$OpenBSD: patch-drivers_pstex_c,v 1.2 2009/04/05 16:21:55 steven Exp $
--- drivers/pstex.c.orig	Sun Nov 18 21:04:10 2007
+++ drivers/pstex.c	Fri May 23 21:10:35 2008
@@ -231,7 +231,8 @@ proc_str (PLStream *pls, EscText *args)
     fprintf(fp,"\\special{ps: 0 0 0 setrgbcolor}{");
 
   fprintf(fp,"%% Your text follows:\n");
-  fprintf(fp,"%s\n", cptr);
+  if (strlen(cptr) > 0)
+    fprintf(fp,"%s\n", cptr);
   fprintf(fp,"}}}}");
   
   /*
@@ -262,6 +263,11 @@ parse_str(const char *str, char *dest)
 		       "psi", "Psi", "omega", "Omega"};
 
   plgesc(&esc);
+
+  if (str == NULL) {
+    *tp = '\0';
+    return;
+  }
 
   while (*str) {