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MKDEP(1)		    General Commands Manual		      MKDEP(1)

NAME
       mkdep --	construct Makefile dependency list

SYNOPSIS
       mkdep  [-aDdiopqv]  [-f file] [-P prefix] [-s suffixes] -- [flags] file
	     ...

DESCRIPTION
       mkdep takes a set of flags for the C compiler and a list	 of  C	source
       files  as  arguments  and constructs a set of include file dependencies
       which are written into the file ``.depend''.  An	example	of its use  in
       a Makefile might	be:

	     CFLAGS= -O	-I../include
	     SRCS= file1.c file2.c

	     depend:
		     mkdep -- ${CFLAGS}	${SRCS}

       where the macro SRCS is the list	of C source files and the macro	CFLAGS
       is the list of flags for	the C compiler.

       The options are as follows:

       -a      Append  to the output file, so that multiple mkdep's may	be run
	       from a single Makefile.

       -D      Post process (as	-d) but	read the list of filenames from	stdin.

       -d      Post process and	merge previously created (for example  by  "cc
	       -MD x.c") depend	files into a single file.

       -f      Write the include file dependencies to file, instead of the de-
	       fault ``.depend''.

       -i      When  -d	or -D is used, instead of inlining the contents	of the
	       files to	the resulting depend file, use include	statements  to
	       include the source dependency files.

       -o      Add an additional .OPTIONAL line	for each dependent file.

       -P      Prepend	the  string  given in prefix to	every target filename.
	       This is useful for programs that	have source files in  multiple
	       subdirectories  and  a  single  Makefile	that references	all of
	       them explicitly (without	using the VPATH	functionality  because
	       there can be files with the same	name in	each subdirectory).

       -p      Cause mkdep to produce dependencies of the form:

		     program: program.c

	       so that subsequent makes	will produce program directly from its
	       C  module rather	than using an intermediate .o module.  This is
	       useful for programs whose source	is contained in	a single  mod-
	       ule.  -p	is equivalent to specifying a null suffix with -s.

       -q      Do not print a warning for inaccessible files when -d is	given.

       -s      Expand  each target filename to a list, replacing the `.o' suf-
	       fix with	each element of	suffixes.  The list of suffixes	may be
	       space or	comma separated.

       -v      print debugging output.

FILES
       .depend	File containing	list of	dependencies.

SEE ALSO
       cc(1), cpp(1), make(1)

HISTORY
       The mkdep command appeared in 4.3BSD-Tahoe.

BUGS
       Some characters special to make(1), most	notably	the comment character,
       are not escaped correctly if they appear	in file	names.	This can  lead
       to unparseable output or	silently cause dependencies to be lost.

FreeBSD	Ports 14.quarterly	 March 4, 2013			      MKDEP(1)

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