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From b12ffcd411d4776f7120ccecb3be34344d930d2b Mon Sep 17 00:00:00 2001
From: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com>
Date: Tue, 9 Aug 2016 16:21:29 +0200
Subject: Do not depend on Linux 4.5
Avoid using MADV_FREE that was only recently added to Linux. It will fail when
run on older Linux kernels.
Change-Id: I9b0369fb31402f088b2327c12f70dd39f5e4c8c0
Reviewed-by: Peter Varga <pvarga@inf.u-szeged.hu>
---
chromium/third_party/WebKit/Source/wtf/PageAllocator.cpp | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/src/3rdparty/chromium/third_party/WebKit/Source/wtf/PageAllocator.cpp b/src/3rdparty/chromium/third_party/WebKit/Source/wtf/PageAllocator.cpp
index 121b687..be7c3b9 100644
--- a/src/3rdparty/chromium/third_party/WebKit/Source/wtf/PageAllocator.cpp
+++ b/src/3rdparty/chromium/third_party/WebKit/Source/wtf/PageAllocator.cpp
@@ -39,6 +39,11 @@
#include <sys/mman.h>
+#if OS(LINUX) && defined(MADV_FREE)
+// Added in Linux 4.5, but we don't want to depend on 4.5 at runtime
+#undef MADV_FREE
+#endif
+
#ifndef MADV_FREE
#define MADV_FREE MADV_DONTNEED
#endif
--
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