Bug 502696 - js_CompareAndSwap on sparc should not use PRLock(); (Bv1-CC) Copy it to comm-central.

r=Callek.

config/autoconf.mk.in

@@ -130,7 +130,6 @@ MOZ_LDAP_XPCOM = @MOZ_LDAP_XPCOM@
 MOZ_LDAP_XPCOM_EXPERIMENTAL = @MOZ_LDAP_XPCOM_EXPERIMENTAL@
 MOZ_BRANDING_DIRECTORY = @MOZ_BRANDING_DIRECTORY@
 XPCOM_USE_LEA = @XPCOM_USE_LEA@
-JS_ULTRASPARC_OPTS = @JS_ULTRASPARC_OPTS@
 MOZ_INSTALLER	= @MOZ_INSTALLER@
 MOZ_UPDATER	= @MOZ_UPDATER@
 MOZ_UPDATE_PACKAGING	= @MOZ_UPDATE_PACKAGING@

configure.in

@@ -5659,21 +5659,6 @@ MOZ_ARG_DISABLE_BOOL(zipwriter,
     MOZ_ZIPWRITER=1 )
 AC_SUBST(MOZ_ZIPWRITER)
 
-dnl ========================================================
-dnl = Enable Ultrasparc specific optimizations for JS
-dnl ========================================================
-MOZ_ARG_ENABLE_BOOL(js-ultrasparc,
-[  --enable-js-ultrasparc  Use UltraSPARC optimizations in JS],
-    JS_ULTRASPARC_OPTS=1,
-    JS_ULTRASPARC_OPTS= )
-
-dnl only enable option for ultrasparcs
-if test `echo "$target_os" | grep -c \^solaris 2>/dev/null` = 0 -o \
-    "$OS_TEST" != "sun4u"; then
-    JS_ULTRASPARC_OPTS=
-fi
-AC_SUBST(JS_ULTRASPARC_OPTS)
-
 dnl ========================================================
 dnl =
 dnl = Feature options that require extra sources to be pulled