diff -up cmucl-19e/src/lisp/x86-assem.S.gcc43 cmucl-19e/src/lisp/x86-assem.S
--- cmucl-19e/src/lisp/x86-assem.S.gcc43	2007-07-06 03:04:39.000000000 -0500
+++ cmucl-19e/src/lisp/x86-assem.S	2008-03-14 19:07:35.000000000 -0500
@@ -81,7 +81,7 @@ FUNCDEF(call_into_c)
 
 /* Check for a return FP value */
 	fxam
-	fnstsw	%eax
+	fnstsw	%ax
 	andl	$0x4500,%eax
 	cmpl	$0x4100,%eax
 	jne	Lfp_rtn_value