Missing .gitignore changes for xcode support
diff --git a/.gitignore b/.gitignore
index 0fbeb18..6af76ac 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,3 +16,6 @@ libtool
stamp-h1
libffi*gz
autom4te.cache
+libffi.xcodeproj/xcuserdata
+libffi.xcodeproj/project.xcworkspace
+ios/