Because libraries on Windows lack useful version information, the zlib

guys had to change the name to differentiate with older versions when
a backward incompatibility came up.  Of course, we need to adapt.
This change simply tries to load the library through the newer name
(ZLIB1) first, and if that fails, it tries the good old ZLIB.

crypto/comp/c_zlib.c

@@ -357,7 +357,17 @@ COMP_METHOD *COMP_zlib(void)
 	if (!zlib_loaded)
 		{
 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_WIN32)
-		zlib_dso = DSO_load(NULL, "ZLIB", NULL, 0);
+		zlib_dso = DSO_load(NULL, "ZLIB1", NULL, 0);
+		if (!zlib_dso)
+			{
+			zlib_dso = DSO_load(NULL, "ZLIB", NULL, 0);
+			if (zlib_dso)
+				{
+				/* Clear the errors from the first failed
+				   DSO_load() */
+				ERR_clear_error();
+				}
+			}
 #else
 		zlib_dso = DSO_load(NULL, "z", NULL, 0);
 #endif