gpp(1) on Linux
The text c2c233cd1d50, as Debian 12 (Bookworm), Debian 11 (Bullseye) shipped it.
Generic Preprocessor
Flags it lists
-
--curdirinclast -
--help -
--include -
--includemarker -
--nocurinc -
--nostdinc -
--version -
--warninglevel -
-C -
-D -
-H -
-I -
-O -
-P -
-T -
-X -
-c -
-h -
-m -
-n -
-o -
-s -
-x -
-z