fixed a build problem with target=x86_64-win64-vs9

Change-Id: I9c56216d22212c4fc13a5e2ed02f30f5b373b94c

diff --git a/test/test_libvpx.cc b/test/test_libvpx.cc
index 9bce60db1629bf5ca1296cf99e944157949adb6f..cfd5d28076c9db6714c21f7e9a1ae478f059116f 100644 (file)
--- a/test/test_libvpx.cc
+++ b/test/test_libvpx.cc
@@ -10,7 +10,9 @@
 #include <string>
 #include "vpx_config.h"
 #if ARCH_X86 || ARCH_X86_64
+extern "C" {
 #include "vpx_ports/x86.h"
+}
 #endif
 #include "third_party/googletest/src/include/gtest/gtest.h"