makefilegen(1) on Linux
The text c2775f985d0a, as Debian 9 (Stretch) shipped it.
Makefile Generator
Flags it lists
-
-E -
-I -
-M -
-O -
-R -
-S -
-a -
-c -
-d -
-e -
-f -
-g -
-l -
-n -
-o -
-p -
-s -
-v -
-w -
-z