gpic(1) on Linux
The text e6fc986cbd64, as Debian 5.0 (Lenny), Debian 4.0 (Etch), Debian 3.1 (Sarge) shipped it.
compile pictures for troff or TeX
Flags it lists
-
-C -
-D -
-S -
-U -
-c -
-n -
-t -
-v -
-z