proper way to create a GString object from an unsigned char *

[Adam Monsen <haircut gmail com>]

What's the proper way to create a GString object from an unsigned char*?

I ask because I'm using libxml, and libxml has a xmlChar type (which
is an unsigned char). If I make an xmlChar* = "Hello World", how
should I make this into a GString?

Is it wrong to just cast xmlChar* to char*, even though xmlChar is an
unsigned char?

Here's a small program demonstrating the warning from gcc that I want
to alleviate:

-------------------------------------------8<-------------------------------------------
#include <libxml/xmlstring.h>
#include <glib-2.0/glib.h>
#include <stdio.h>

/*
  gcc -Wall -ansi -pedantic `pkg-config --cflags --libs libxml-2.0
glib-2.0` xmlchar.c
 */

int
main (void)
{
  xmlChar *xmlstr;
  GString *gstr;

  /* METHOD 0: gcc warns */
  xmlstr = xmlCharStrdup ("Hello World -- gcc warning");
  gstr = g_string_new (xmlstr);
  printf ("%s\n", gstr->str);
  g_string_free (gstr, FALSE);

  /* METHOD 1: with cast ... no warning from gcc */
  xmlstr = xmlCharStrdup ("Hello World -- with cast, no warning");
  gstr = g_string_new ((char *) xmlstr);
  printf ("%s\n", gstr->str);
  g_string_free (gstr, FALSE);

  return 0;
}
------------------------------------------->8-------------------------------------------

-- 
Adam Monsen <adamm wazamatta com>
http://adammonsen.com/