coqdep --help (return code: 1)
usage: coqdep [options] <filename>+
options:
-c : Also print the dependencies of caml modules (=ocamldep).
-boot : For coq developpers, prints dependencies over coq library files (omitted by default).
-sort : output the given file name ordered by dependencies
-noglob | -no-glob :
-I dir -as logname : add (non recursively) dir to coq load path under logical name logname
-I dir : add (non recursively) dir to ocaml path
-R dir -as logname : add and import dir recursively to coq load path under logical name logname
-R dir logname : add and import dir recursively to coq load path under logical name logname
-Q dir logname : add (recusively) and open (non recursively) dir to coq load path under logical name logname
-dumpgraph f : print a dot dependency graph in file 'f'
-dumpgraphbox f : print a dot dependency graph box in file 'f'
-exclude-dir dir : skip subdirectories named 'dir' during -R/-Q search
-coqlib dir : set the coq standard library directory
-suffix s :
-slash : deprecated, no effect