NAME
     mkdep - construct Makefile dependency list
SYNOPSIS
     mkdep [-ap] [-f file] [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.
     -f file
             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.
SEE ALSO
     cc(1), cpp(1), make(1)
FILES
     .depend  file containing list of dependencies
HISTORY
     The mkdep command appeared in 4.3BSD-Tahoe.