1x:ccmakedep

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      ccmakedep - create dependencies in makefiles using a C compiler
      

Contents 1 SYNOPSIS 2 DESCRIPTION 3 EXAMPLE 4 OPTIONS 5 RELATED 6 CATEGORY

SYNOPSIS

      ccmakedep [ cpp-flags ] [ -wwidth ] [ -smagic-string ] [ -fmakefile ] [ -oobject-suffix ] [ -v ] [ -a ] [ -cccom-
      piler ] [ -- options -- ] sourcefile ...

DESCRIPTION

      The ccmakedep program calls a C compiler to preprocess each sourcefile, and uses the output to construct makefile
      rules  describing their dependencies.  These rules instruct make(1) on which object files must be recompiled when
      a dependency has changed.
 
      By default, ccmakedep places its output in the file named makefile if it exists, otherwise Makefile.   An  alter-
      nate makefile may be specified with the -f option.  It first searches the makefile for a line beginning with
 
          # DO NOT DELETE
 
      or  one  provided  with  the -s option, as a delimiter for the dependency output.  If it finds it, it will delete
      everything following this up to the end of the makefile and put the output after this line.  If it  doesn't  find
      it, the program will append the string to the makefile and place the output after that.

EXAMPLE

      Normally, ccmakedep will be used in a makefile target so that typing 'make depend' will bring the dependencies up
      to date for the makefile.  For example,
          SRCS = file1.c file2.c ...
          CFLAGS = -O -DHACK -I../foobar -xyz
          depend:
                  ccmakedep -- $(CFLAGS) -- $(SRCS)

OPTIONS

      The program will ignore any option that it does not understand, so you may use the same arguments that you  would
      for cc(1), including -D and -U options to define and undefine symbols and -I to set the include path.
 
      -a     Append the dependencies to the file instead of replacing existing dependencies.
 
      -cccompiler
             Use this compiler to generate dependencies.
 
      -fmakefile
             Filename.   This  allows  you  to  specify  an alternate makefile in which ccmakedep can place its output.
             Specifying "-" as the file name (that is, -f-) sends the output to standard output instead of modifying an
             existing file.
 
      -sstring
             Starting  string  delimiter.   This option permits you to specify a different string for ccmakedep to look
             for in the makefile.  The default is "# DO NOT DELETE".
 
      -v     Be verbose: display the C compiler command before running it.
 
      -- options --
             If ccmakedep encounters a double hyphen (--) in the argument list, then any unrecognized arguments follow-
             ing  it will be silently ignored.  A second double hyphen terminates this special treatment.  In this way,
             ccmakedep can be made to safely ignore esoteric compiler arguments that  might  normally  be  found  in  a
             CFLAGS  make  macro (see the EXAMPLE section above).  -D, -I, and -U options appearing between the pair of
             double hyphens are still processed normally.

RELATED

      cc(1), make(1), makedepend(1), ccmakedep(1).

CATEGORY