mkdep man page on DragonFly

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MKDEP(1)		  BSD General Commands Manual		      MKDEP(1)

NAME
     mkdep — construct Makefile dependency list

SYNOPSIS
     mkdep [-ap] [-f file] [flags] file ...

DESCRIPTION
     The mkdep utility 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 dependen‐
     cies 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 user has the ability to change the preprocessor and preprocessor
     options used.  For instance, to use gcc as the preprocessor and to ignore
     system headers, one would use

	   depend:
		   env MKDEP_CPP="gcc -E" MKDEP_CPP_OPTS=-MM mkdep \
			   ${CFLAGS} ${SRCS}

     The options are as follows:

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

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

     -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 use‐
	     ful for programs whose source is contained in a single module.

ENVIRONMENT
     CC		     Specifies the C compiler to use.  The specified compiler
		     is expected to have options consistent with the GNU C
		     compiler.

     MKDEP_CPP	     Specifies the preprocessor to use.	 The default is "${CC}
		     -E".

     MKDEP_CPP_OPTS  Specifies the non-CFLAGS options for the preprocessor.
		     The default is "-M".

FILES
     .depend  File containing list of dependencies.

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

HISTORY
     The mkdep command appeared in 4.3BSD-Tahoe.

BSD				 June 6, 1993				   BSD
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