From 6a51ce0b588cb0059ebba2f301ca7b819e47aa3b Mon Sep 17 00:00:00 2001
From: Dickinson Lo <chico-san@users.sourceforge.net>
Date: Mon, 3 Mar 2008 05:46:37 +0000
Subject: [PATCH] adding 64bit flags

---
 dtool/Config.Linux.pp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/dtool/Config.Linux.pp b/dtool/Config.Linux.pp
index 8b6b41c8c3..b7f29e9ce4 100644
--- a/dtool/Config.Linux.pp
+++ b/dtool/Config.Linux.pp
@@ -22,7 +22,10 @@
 #define IS_LINUX 1
 
 // What additional flags should we pass to interrogate?
-#define SYSTEM_IGATE_FLAGS -D__i386__ -D__const=const -Dvolatile -Dmutable
+#if $[eq $[shell uname -i], x86_64] // if Linux is 64bit
+  #define SYSTEM_IGATE_FLAGS -D_LP64
+#else
+  #define SYSTEM_IGATE_FLAGS -D__i386__ -D__const=const -Dvolatile -Dmutable
 
 // Is the platform big-endian (like an SGI workstation) or
 // little-endian (like a PC)?  Define this to the empty string to