COPKGManager: don't init if no opkg support available

This avoids creating of any basic configuration files or directories on
non opkg supported firmware releases.

src/gui/opkg_manager.cpp

@@ -105,6 +105,14 @@ static const string pkg_types[OM_MAX] =
 
 COPKGManager::COPKGManager(): opkg_conf('\t')
 {
+	init();
+}
+
+void COPKGManager::init()
+{
+	if (!hasOpkgSupport())
+		return;
+
 	OM_ERRORS();
 	width = 80;
 

src/gui/opkg_manager.h

@@ -51,7 +51,7 @@ class COPKGManager : public CMenuTarget
 		void saveConfig();
 		void loadConfig();
 		struct pkg;
-
+		void init();
 		//config
 		std::string config_src[OPKG_MAX_FEEDS];
 		std::vector<std::string> config_dest;