posix main: only try to generate symlinks if data path argument given

if not given, the dirs are either not needed (eg RPI) or assumed to
exist already

src/platforms/posix/main.cpp

@@ -358,12 +358,16 @@ int main(int argc, char **argv)
 		return -1;
 	}
 
+	bool symlinks_needed = true;
+
 	if (positional_arg_count == 1) { //data path is optional
 		commands_file = data_path;
-		data_path = ".";
-	}
+		symlinks_needed = false;
 
+	} else {
 		cout << "data path: " << data_path << endl;
+	}
+
 	cout << "commands file: " << commands_file << endl;
 
 	if (commands_file.size() < 1) {
@@ -377,6 +381,7 @@ int main(int argc, char **argv)
 	}
 
 	// create sym-links
+	if (symlinks_needed) {
 		vector<string> path_sym_links;
 		path_sym_links.push_back("ROMFS");
 		path_sym_links.push_back("posix-configs");
@@ -405,6 +410,7 @@ int main(int argc, char **argv)
 					  src_path.c_str(), dest_path.c_str());
 			}
 		}
+	}
 
 	// setup rootfs
 	const string eeprom_path = "./rootfs/eeprom/";