pound-define SSLEAY_VERSION_NUMBER OPENSSL_VERSION_NUMBER

Change-Id: Ic04e474759254397e8cc9220b2618058d43f71be
Reviewed-on: https://boringssl-review.googlesource.com/5533
Reviewed-by: Adam Langley <agl@google.com>

include/openssl/base.h

@@ -109,6 +109,7 @@ extern "C" {
 
 #define OPENSSL_IS_BORINGSSL
 #define OPENSSL_VERSION_NUMBER 0x10002000
+#define SSLEAY_VERSION_NUMBER OPENSSL_VERSION_NUMBER
 
 #if defined(BORINGSSL_SHARED_LIBRARY)