[XeTeX] Small bug found in xdv2pdf

[Brian de Alwis]

Hello.  I've stumbled across a bug in xdv2cpp's doFontDef() routine.   
fr was not NULL, but fr->cmap was NULL.  I'm not sure if I've put the  
not-NULL test at the right level below, but it at least identifies the  
location.

[I'm not subscribed to the list, but thanks for this great piece of  
software!]

--- ../../../texk/xdv2pdf/xdv2pdf.cpp.orig	2008-01-18  
16:48:44.000000000 -0600
+++ ../../../texk/xdv2pdf/xdv2pdf.cpp	2008-01-18 16:28:23.000000000  
-0600
@@ -1603,7 +1603,7 @@
  	// look for a map entry for this font name
  	std::string	nameStr((char*)name);
  	const fontMapRec*	fr = getFontRec(nameStr);
-	if (fr != NULL) {
+	if (fr != NULL && fr->cmap != NULL) {
  		font.cgFont = fr->cgFont;
  		if (fr->cmap->size() > 0) {
  			if (font.charMap != NULL)

-- 
  Brian de Alwis | Software Practices Lab | UBC | http://www.cs.ubc.ca/~bsd/
       "Amusement to an observing mind is study." - Benjamin Disraeli