write used OpenSSL library version to debug.log

src/init.cpp

@@ -14,6 +14,7 @@
 #include <boost/filesystem/convenience.hpp>
 #include <boost/interprocess/sync/file_lock.hpp>
 #include <boost/algorithm/string/predicate.hpp>
+#include <openssl/crypto.h>
 
 #ifndef WIN32
 #include <signal.h>
@@ -446,6 +447,7 @@ bool AppInit2()
         ShrinkDebugFile();
     printf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n");
     printf("Bitcoin version %s (%s)\n", FormatFullVersion().c_str(), CLIENT_DATE.c_str());
+    printf("Using OpenSSL version %s\n", SSLeay_version(SSLEAY_VERSION));
     printf("Startup time: %s\n", DateTimeStrFormat("%x %H:%M:%S", GetTime()).c_str());
     printf("Default data directory %s\n", GetDefaultDataDir().string().c_str());
     printf("Used data directory %s\n", GetDataDir().string().c_str());