From bc69e46ad112ff3680a18f6c5361894d74194e80 Mon Sep 17 00:00:00 2001
From: Yang Tse <yangsita@gmail.com>
Date: Sun, 24 Aug 2008 10:40:38 +0000
Subject: [PATCH] x86_64 fixes

---
 lib/mprintf.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/mprintf.c b/lib/mprintf.c
index 1e5235769..1bbf53ade 100644
--- a/lib/mprintf.c
+++ b/lib/mprintf.c
@@ -776,10 +776,11 @@ static int dprintf_formatf(
       /* Decimal integer.  */
       base = 10;
 
-      is_neg = (p->data.num.as_signed < (mp_intmax_t)0) ? 1 : 0;
+      signed_num = p->data.num.as_signed;
+      is_neg = (signed_num < (mp_intmax_t)0) ? 1 : 0;
       if(is_neg) {
         /* signed_num might fail to hold absolute negative minimum by 1 */
-        signed_num = p->data.num.as_signed + (mp_intmax_t)1;
+        signed_num += (mp_intmax_t)1;
         signed_num = -signed_num;
         num = (mp_uintmax_t)signed_num;
         num += (mp_uintmax_t)0x1;