Recognize hppa64-linux in config.guess

[Alan Modra]

I'm about to apply this to binutils mainline CVS and 2.11 branch.

ChangeLog
	* config.guess: Handle hppa64-linux systems.

Alan Modra
-- 
Linuxcare.  Support for the Revolution.

Index: config.guess
===================================================================
RCS file: /cvs/src/src/config.guess,v
retrieving revision 1.7
diff -u -p -r1.7 config.guess
--- config.guess	2001/01/07 12:04:21	1.7
+++ config.guess	2001/01/30 00:24:35
@@ -929,6 +929,8 @@ EOF
 	  echo s390-ibm-linux && exit 0
 	elif test "${UNAME_MACHINE}" = "x86_64"; then
 	  echo x86_64-unknown-linux-gnu && exit 0
+	elif test "${UNAME_MACHINE}" = "parisc64" -o "${UNAME_MACHINE}" = "hppa64"; then
+	  echo hppa64-unknown-linux-gnu && exit 0
 	elif test "${UNAME_MACHINE}" = "parisc" -o "${UNAME_MACHINE}" = "hppa"; then
 	  # Look for CPU level
 	  case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in