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-rw-r--r--third_party/tcmalloc/chromium/src/windows/config.h8
1 files changed, 5 insertions, 3 deletions
diff --git a/third_party/tcmalloc/chromium/src/windows/config.h b/third_party/tcmalloc/chromium/src/windows/config.h
index 99de82c..b5d9bb6 100644
--- a/third_party/tcmalloc/chromium/src/windows/config.h
+++ b/third_party/tcmalloc/chromium/src/windows/config.h
@@ -261,10 +261,12 @@
// ---------------------------------------------------------------------
// Extra stuff not found in config.h.in
-// This must be defined before the windows.h is included. It's needed
-// for mutex.h, to give access to the TryLock method.
+// This must be defined before the windows.h is included. We need at
+// least 0x0400 for mutex.h to have access to TryLock, and at least
+// 0x0501 for patch_functions.cc to have access to GetModuleHandleEx.
+// (This latter is an optimization we could take out if need be.)
#ifndef _WIN32_WINNT
-# define _WIN32_WINNT 0x0400
+# define _WIN32_WINNT 0x0501
#endif
// We want to make sure not to ever try to #include heap-checker.h