cxref(1) on Linux
The text 0fdc9371eda7, as Debian 7 (Wheezy) shipped it.
C Cross Referencing & Documenting tool.
Flags it lists
-
-CPP -
-Ddefine -
-Idirname -
-Nbasename -
-Odirname -
-Rdirname -
-Udefine -
-all-comments -
-block-comments -
-delete -
-html -
-html-src -
-index -
-latex -
-no-comments -
-raw -
-rtf -
-sgml -
-verbatim-comments -
-warn -
-xref