h2xs(1p) on Linux
The text c83438a19d40, as Debian 2.0 (Hamm) shipped it.
convert .h C header files to Perl extensions
Flags it lists
-
-A -
-F -
-O -
-P -
-X -
-c -
-d -
-f -
-h -
-n -
-p -
-s -
-v -
-x