Changed: Try to load Steam DLL without path if fails

--HG--
branch : compatibility-develop

code/ryzom/client/src/steam_client.cpp

@@ -302,14 +302,20 @@ bool CSteamClient::init()
 	filename = "libsteam_api.so";
 #endif
 
-	// try to load library
+	// try to load library with absolute path
 	_Handle = NLMISC::nlLoadLibrary(Args.getProgramPath() + filename);
 
+	if (!_Handle)
+	{
+		// try to load library with relative path (will search in system paths)
+		_Handle = NLMISC::nlLoadLibrary(filename);
+
 		if (!_Handle)
 		{
 			nlwarning("Unable to load Steam client");
 			return false;
 		}
+	}
 
 	// load Steam functions
 	NL_LOAD_SYMBOL(SteamAPI_Init);