--- FLTFirebaseAuthPlugin-old.m	2020-02-16 12:54:25.000000000 +0100
+++ FLTFirebaseAuthPlugin.m	2020-02-16 12:55:36.000000000 +0100
@@ -1,6 +1,7 @@
 // Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
+#include <TargetConditionals.h>
 
 #import "FLTFirebaseAuthPlugin.h"
 #import "UserAgent.h"
@@ -43,7 +44,9 @@
   FLTFirebaseAuthPlugin *instance = [[FLTFirebaseAuthPlugin alloc] init];
   instance.channel = channel;
   instance.authStateChangeListeners = [[NSMutableDictionary alloc] init];
+#if TARGET_OS_IPHONE
   [registrar addApplicationDelegate:instance];
+#endif
   [registrar addMethodCallDelegate:instance channel:channel];
 
   SEL sel = NSSelectorFromString(@"registerLibrary:withVersion:");
@@ -69,6 +72,7 @@
   return [FIRAuth authWithApp:[FIRApp appNamed:appName]];
 }
 
+#if TARGET_OS_IPHONE
 - (bool)application:(UIApplication *)application
     didReceiveRemoteNotification:(NSDictionary *)notification
           fetchCompletionHandler:(void (^)(UIBackgroundFetchResult result))completionHandler {
@@ -87,6 +91,7 @@
 - (BOOL)application:(UIApplication *)app openURL:(NSURL *)url options:(NSDictionary *)options {
   return [[FIRAuth auth] canHandleURL:url];
 }
+#endif
 
 // TODO(jackson): We should use the renamed versions of the following methods
 // when they are available in the Firebase SDK that this plugin is dependent on.
@@ -265,7 +270,9 @@
                                                          forObject:nil
                                                              error:error];
                                                 }];
-  } else if ([@"updatePhoneNumberCredential" isEqualToString:call.method]) {
+  }
+#if TARGET_OS_IPHONE
+  else if ([@"updatePhoneNumberCredential" isEqualToString:call.method]) {
     FIRPhoneAuthCredential *credential =
         (FIRPhoneAuthCredential *)[self getCredential:call.arguments];
     [[self getAuth:call.arguments].currentUser
@@ -273,7 +280,9 @@
                          completion:^(NSError *_Nullable error) {
                            [self sendResult:result forObject:nil error:error];
                          }];
-  } else if ([@"updatePassword" isEqualToString:call.method]) {
+  }
+#endif
+  else if ([@"updatePassword" isEqualToString:call.method]) {
     NSString *password = call.arguments[@"password"];
     [[self getAuth:call.arguments].currentUser updatePassword:password
                                                    completion:^(NSError *error) {
@@ -332,7 +341,9 @@
                                                    identifier.intValue]
                 details:nil]);
     }
-  } else if ([@"verifyPhoneNumber" isEqualToString:call.method]) {
+  }
+#if TARGET_OS_IPHONE
+  else if ([@"verifyPhoneNumber" isEqualToString:call.method]) {
     NSString *phoneNumber = call.arguments[@"phoneNumber"];
     NSNumber *handle = call.arguments[@"handle"];
     [[FIRPhoneAuthProvider provider]
@@ -367,7 +378,9 @@
                                        forAuthDataResult:authResult
                                                    error:error];
                                  }];
-  } else if ([@"setLanguageCode" isEqualToString:call.method]) {
+  }
+#endif
+  else if ([@"setLanguageCode" isEqualToString:call.method]) {
     NSString *language = call.arguments[@"language"];
     [[self getAuth:call.arguments] setLanguageCode:language];
     [self sendResult:result forObject:nil error:nil];
@@ -487,13 +500,17 @@
   } else if ([FIRGitHubAuthProviderID isEqualToString:provider]) {
     NSString *token = data[@"token"];
     credential = [FIRGitHubAuthProvider credentialWithToken:token];
-  } else if ([FIRPhoneAuthProviderID isEqualToString:provider]) {
+  }
+#if TARGET_OS_IPHONE
+  else if ([FIRPhoneAuthProviderID isEqualToString:provider]) {
     NSString *verificationId = data[@"verificationId"];
     NSString *smsCode = data[@"smsCode"];
     credential = [[FIRPhoneAuthProvider providerWithAuth:[self getAuth:arguments]]
         credentialWithVerificationID:verificationId
                     verificationCode:smsCode];
-  } else if ([provider length] != 0 && data[@"idToken"] != (id)[NSNull null] &&
+  }
+#endif
+  else if ([provider length] != 0 && data[@"idToken"] != (id)[NSNull null] &&
              (data[@"accessToken"] != (id)[NSNull null] ||
               data[@"rawNonce"] != (id)[NSNull null])) {
     NSString *idToken = data[@"idToken"];