fix(net): Rework NO_GLOBALS to not act on dependent network classes (espressif#11933)

Author: me-no-dev

libraries/ESPmDNS/src/ESPmDNS.h

@@ -127,9 +127,7 @@ class MDNSResponder {
  mdns_txt_item_t *_getResultTxt(int idx, int txtIdx);
 };
 
-#if !defined(NO_GLOBAL_INSTANCES) && !defined(NO_GLOBAL_MDNS)
 extern MDNSResponder MDNS;
-#endif
 
 #endif /* CONFIG_MDNS_MAX_INTERFACES */
 #endif //ESP32MDNS_H

libraries/Ethernet/src/ETH.cpp

@@ -1174,6 +1174,8 @@ size_t ETHClass::printDriverInfo(Print &out) const {
  return bytes;
 }
 
+#if !defined(NO_GLOBAL_INSTANCES) && !defined(NO_GLOBAL_ETH)
 ETHClass ETH;
+#endif
 
 #endif /* CONFIG_ETH_ENABLED */

libraries/Network/src/NetworkManager.h

@@ -31,6 +31,4 @@ class NetworkManager : public NetworkEvents, public Printable {
  }
 };
 
-#if !defined(NO_GLOBAL_INSTANCES) && !defined(NO_GLOBAL_NETWORK)
 extern NetworkManager Network;
-#endif

libraries/PPP/src/PPP.cpp

@@ -763,6 +763,8 @@ size_t PPPClass::printDriverInfo(Print &out) const {
  return bytes;
 }
 
+#if !defined(NO_GLOBAL_INSTANCES) && !defined(NO_GLOBAL_PPP)
 PPPClass PPP;
+#endif
 
 #endif /* CONFIG_LWIP_PPP_SUPPORT */

libraries/WiFi/src/WiFi.h

@@ -72,8 +72,6 @@ class WiFiClass : public WiFiGenericClass, public WiFiSTAClass, public WiFiScanC
  bool isProvEnabled();
 };
 
-#if !defined(NO_GLOBAL_INSTANCES) && !defined(NO_GLOBAL_WIFI)
 extern WiFiClass WiFi;
-#endif
 
 #endif /* SOC_WIFI_SUPPORTED */