Add dummy macos

packages/url_launcher/url_launcher/macos/url_launcher.podspec

@@ -0,0 +1,22 @@
+#
+# To learn more about a Podspec see http://guides.cocoapods.org/syntax/podspec.html
+#
+Pod::Spec.new do |s|
+  s.name             = 'url_launcher'
+  s.version          = '0.0.1'
+  s.summary          = 'No-op implementation of the macos url_launcher to avoid build issues on macos'
+  s.description      = <<-DESC
+  No-op implementation of the url_launcher plugin to avoid build issues on macos.
+  https://github.com/flutter/flutter/issues/46618
+                       DESC
+  s.homepage         = 'https://github.com/flutter/plugins/tree/master/packages/url_launcher'
+  s.license          = { :file => '../LICENSE' }
+  s.author           = { 'Flutter Team' => '[email protected]' }
+  s.source           = { :path => '.' }
+  s.source_files = 'Classes/**/*'
+  s.public_header_files = 'Classes/**/*.h'
+
+  s.platform = :osx
+  s.osx.deployment_target = '10.11'
+end
+