commit 47ea30f
Author: Landry Breuil <landry@openbsd.org>
Date:   Thu Feb 2 15:31:56 2012 +0900

    Bug 653551 - Jaegermonkey Sparc back-end broken on sparc64. r=leon.sha
---
 js/src/configure.in | 2 ++
 1 file changed, 2 insertions(+)

diff --git js/src/configure.in js/src/configure.in
index 84390cf..d663c46 100644
--- js/src/configure.in
+++ js/src/configure.in
@@ -2471,8 +2471,10 @@ arm*-*)
     NANOJIT_ARCH=ARM
     ;;
 sparc*-*)
+    if test ! "$HAVE_64BIT_OS" ; then
     ENABLE_JIT=1
     NANOJIT_ARCH=Sparc
+    fi
     ;;
 esac
 
