diff --git a/TODO.md b/TODO.md
index dee9d997..cfb31fe3 100644
--- a/TODO.md
+++ b/TODO.md
@@ -247,3 +247,5 @@ https://developer.apple.com/library/content/documentation/Cocoa/Conceptual/Print
 
 - run os x code with `OBJC_DEBUG_MISSING_POOLS=YES` and other `OBJC_HELP=YES` options
 	- turn off the autorelease pool to make sure we're not autoreleasing improperly
+
+TODO investigate -Weverything in clang alongside -Wall in MSVC (and in gcc too maybe...)