win: Add an explicit intrin.h include to work around a clang-cl bug.
I did the same change in NaCl in
https://codereview.chromium.org/2070533002/. I thought NaCl is the only
place where this was needed, but at least it's due to SecureZeroMemory()
again. So it's two files now, but at least there's only one function we
know of that needs this, and it's only called in three files total in
all projects used by Chromium.
BUG=chromium:592745
Change-Id: I07ed197869e26ec70c1f4b75d91fd64abae5015e
Reviewed-on: https://boringssl-review.googlesource.com/8320
Reviewed-by: David Benjamin <davidben@google.com>
diff --git a/crypto/mem.c b/crypto/mem.c
index ca4c559..f44e90f 100644
--- a/crypto/mem.c
+++ b/crypto/mem.c
@@ -69,6 +69,14 @@
OPENSSL_MSVC_PRAGMA(warning(push, 3))
#include <windows.h>
OPENSSL_MSVC_PRAGMA(warning(pop))
+
+/* Work around a clang-cl bug: SecureZeroMemory() below uses __stosb() but
+ * windows.h only declares that intrinsic and then uses `#pragma intrinsic` for
+ * it. clang-cl doesn't implement `#pragma intrinsic` yet; it instead defines
+ * the function as an always-inline symbol in its intrin.h.
+ * TODO(thakis): Remove this once http://llvm.org/PR19898 is fixed.
+ */
+#include <intrin.h>
#else
#include <strings.h>
#endif
