From 3b56fdb5fc22463c510cdb6f547638282e13a38f Mon Sep 17 00:00:00 2001
From: Jesse McDonald <nybble41@gmail.com>
Date: Sun, 27 Mar 2011 19:08:51 -0500
Subject: [PATCH] Properly define INTPTR_MIN and INTPTR_MAX on x86_64
 platforms.

---
 gc.h | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/gc.h b/gc.h
index 996efec..1f9797c 100644
--- a/gc.h
+++ b/gc.h
@@ -28,8 +28,13 @@ typedef double native_float_t;
 /* The INTPTR_ macros are defined, but not given values. */
 #  undef INTPTR_MIN
 #  undef INTPTR_MAX
-#  define INTPTR_MIN INT32_MIN
-#  define INTPTR_MAX INT32_MAX
+#  ifdef __x86_64__
+#    define INTPTR_MIN INT64_MIN
+#    define INTPTR_MAX INT64_MAX
+#  else
+#    define INTPTR_MIN INT32_MIN
+#    define INTPTR_MAX INT32_MAX
+#  endif
 #endif
 
 #define FIXNUM_MIN (INTPTR_MIN/2)