unifdef(1) on OpenBSD
The text c19892f079b3, as OpenBSD 8.0-current (2026-11-01), OpenBSD 8.0, OpenBSD 7.9, OpenBSD 7.8, OpenBSD 7.7, OpenBSD 7.6, OpenBSD 7.5, OpenBSD 7.4 shipped it. The page shows this text now.
remove preprocessor conditionals from code
Flags it lists
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-B -
-K -
-M -
-S -
-U -
-V -
-b -
-c -
-d -
-e -
-f -
-h -
-iU -
-k -
-m -
-n -
-o -
-s -
-t