Fixes for ios build

ios/Podfile

@@ -37,5 +37,16 @@ end
 post_install do |installer|
   installer.pods_project.targets.each do |target|
     flutter_additional_ios_build_settings(target)
+
+    target.build_configurations.each do |config|
+
+      config.build_settings['GCC_PREPROCESSOR_DEFINITIONS'] ||= [
+        '$(inherited)',
+        ## dart: PermissionGroup.camera
+        'PERMISSION_CAMERA=1',
+      ]
+
+    end 
+    # End of the permission_handler configuration
   end
 end