From faa3052b28e1270ddc85791dad919ea1b3bd7c8d Mon Sep 17 00:00:00 2001
From: Dain <dain@dazar.(none)>
Date: Mon, 14 Jan 2008 09:33:54 -0700
Subject: [PATCH] set MAP_32BIT for 32bit machines

---
 src/posix.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/posix.cpp b/src/posix.cpp
index 3bb35fcd38..7d743d6b7e 100644
--- a/src/posix.cpp
+++ b/src/posix.cpp
@@ -503,6 +503,10 @@ class MySystem: public System {
   virtual void* tryAllocate(unsigned size, bool executable) {
     assert(this, (not executable) or (size % LikelyPageSizeInBytes == 0));
 
+#ifndef MAP_32BIT
+#define MAP_32BIT 0
+#endif
+
     if (executable) {
       void* p = mmap(0, size, PROT_EXEC | PROT_READ | PROT_WRITE,
                      MAP_PRIVATE | MAP_ANONYMOUS | MAP_32BIT, -1, 0);