Re: makeinfo --xml segfaults with empty @top

[Karl Berry]

    makeinfo --xml segfaults with this simple program

    @node Top
    @top

Thanks, I checked in a trivial fix.  I'm not sure if we should make this
a warning.

*** sectioning.c        20 Feb 2004 02:42:19 -0000      1.11
--- sectioning.c        12 Mar 2004 18:21:06 -0000      1.12
***************
*** 352,358 ****
          get_rest_of_line (0, &temp);
            /* Use @settitle value if @top parameter is empty.  */
            if (STREQ (command, "top") && strlen(temp) == 0)
!             temp = xstrdup (title);
  
            /* Docbook does not support @unnumbered at all.  So we provide 
numbers
               that other formats use.  @appendix seems to be fine though, so 
we let
--- 352,358 ----
          get_rest_of_line (0, &temp);
            /* Use @settitle value if @top parameter is empty.  */
            if (STREQ (command, "top") && strlen(temp) == 0)
!             temp = xstrdup (title ? title : "");
  
            /* Docbook does not support @unnumbered at all.  So we provide 
numbers
               that other formats use.  @appendix seems to be fine though, so 
we let