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 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  user has the ability to change the preprocessor and preprocessor options used.  For instance, to use
       cc as the preprocessor and to ignore system headers, one would use

             depend:
                     env MKDEP_CPP="cc -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  useful  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.  The default is cc.

       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.

Debian                                          October 23, 2015                                        MKDEP(1)