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-rw-r--r--chromium/third_party/WebKit/Source/wtf/PageAllocator.cpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/chromium/third_party/WebKit/Source/wtf/PageAllocator.cpp b/chromium/third_party/WebKit/Source/wtf/PageAllocator.cpp
index 121b6872ab3..be7c3b9c2f9 100644
--- a/chromium/third_party/WebKit/Source/wtf/PageAllocator.cpp
+++ b/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