IA-64 broken_backtrace on 4.0

Thu Jul 14 15:51:00 GMT 2005

IA-64 configure.ac on 4.0 branch doesn't define HAVE_BACKTRACE:
 AC_CHECK_FUNC(backtrace, [
 case "$host" in
 ia64-*-linux*)
	 # Has broken backtrace()
	 ;;
Does anyone know *why* this is defined? 
This test works:
#include <execinfo.h>
#include <stdio.h>
int
main (void)
{
 void *p[12];
 int NN = backtrace (p, 12);
 char **pp = backtrace_symbols (p, NN);
 printf ("trace: %d\n", NN);
 int i;
 for (i=0; i<NN; i++)
 printf (" %s \n", pp[i]);
}
Can we just delete this IA-64 special case?
Andrew.