NAME

       ocamldep - Dependency generator for OCaml

SYNOPSIS

       ocamldep [ options ] filename ...

DESCRIPTION

       The ocamldep(1) command scans a set of OCaml source files (.ml and .mli files) for references to external
       compilation  units,  and  outputs  dependency  lines  in  a format suitable for the make(1) utility. This
       ensures that make will compile the source files in the correct order, and recompile those files that need
       to when a source file is modified.

       The typical usage is:

       ocamldep options *.mli *.ml > .depend

       where .depend is the file that should contain the dependencies.

       Dependencies are generated both for compiling with the bytecode compiler ocamlc(1) and with  the  native-
       code compiler ocamlopt(1).

OPTIONS

       The following command-line options are recognized by ocamldep(1).

       -absname
              Show absolute filenames in error messages.

       -no-absname
              Do not try to show absolute filenames in error messages (default).

       -all   Generate dependencies on all required files, rather than assuming implicit dependencies.

       -allow-approx
              Allow falling back on a lexer-based approximation when parsing fails.

       -as-map
              For  the  following  files,  do  not include delayed dependencies for module aliases.  This option
              assumes that they are compiled using options "-no-alias-deps -w -49",  and  that  those  files  or
              their  interface  are  passed  with the "-map" option when computing dependencies for other files.
              Note also that for dependencies to be correct in the implementation of a map file,  its  interface
              should not coerce any of the aliases it contains.

       -debug-map
              Dump the delayed dependency map for each map file.

       -I directory
              Add  the  given  directory  to the list of directories searched for source files. If a source file
              foo.ml mentions an external compilation unit Bar, a dependency on that unit's interface bar.cmi is
              generated only if the source for bar  is  found  in  the  current  directory  or  in  one  of  the
              directories  specified  with  -I.   Otherwise,  Bar  is  assumed  to be a module from the standard
              library, and no dependencies are generated. For programs that span  multiple  directories,  it  is
              recommended to pass ocamldep(1) the same -I options that are passed to the compiler.

       -nocwd Do not add current working directory to the list of include directories.

       -impl file
              Process file as a .ml file.

       -intf file
              Process file as a .mli file.

       -map file
              Read an propagate the delayed dependencies for module aliases in file, so that the following files
              will depend on the exported aliased modules if they use them.

       -ml-synonym .ext
              Consider the given extension (with leading dot) to be a synonym for .ml.

       -mli-synonym .ext
              Consider the given extension (with leading dot) to be a synonym for .mli.

       -modules
              Output  raw  dependencies  of  the  form filename: Module1 Module2 ... ModuleN where Module1, ...,
              ModuleN are the names of the compilation units referenced within  the  file  filename,  but  these
              names are not resolved to source file names.  Such raw dependencies cannot be used by make(1), but
              can be post-processed by other tools such as Omake(1).

       -native
              Generate   dependencies   for   a  pure  native-code  program  (no  bytecode  version).   When  an
              implementation file (.ml file) has no explicit interface file (.mli file),  ocamldep(1)  generates
              dependencies  on  the  bytecode  compiled file (.cmo file) to reflect interface changes.  This can
              cause unnecessary bytecode recompilations for programs that are compiled to native-code only.  The
              flag -native causes dependencies on native compiled files (.cmx) to be  generated  instead  of  on
              .cmo  files.   (This  flag  makes  no  difference if all source files have explicit .mli interface
              files.)

       -one-line
              Output one line per file, regardless of the length.

       -open module
              Assume that module module is opened before parsing each of the following files.

       -pp command
              Cause ocamldep(1) to call the given command as a preprocessor for each source file.

       -ppx command
              Pipe abstract syntax tree through preprocessor command.

       -shared
              Generate dependencies for native plugin files (.cmxs) in addition to native compiled files (.cmx).

       -slash (Windows) Use forward slash / instead of backslash \ in file paths.  Under Unix, this option  does
              nothing.

       -no-slash
              (Windows) Preserve any backslash \ in file paths.  Under Unix, this option does nothing.

       -sort  Sort files according to their dependencies.

       -version
              Print version string and exit.

       -vnum  Print short version number and exit.

       -args file
              Read additional newline separated command line arguments from file.

       -args0 file
              Read additional NUL separated command line arguments from file.

       -help or --help
              Display a short usage summary and exit.

SEE ALSO

       ocamlc(1), ocamlopt(1).
       The OCaml user's manual, chapter "Dependency generator".

                                                                                                     OCAMLDEP(1)