MirOS Manual: ccmakedep(1)


ccmakedep(1)        UNIX Programmer's Manual         ccmakedep(1)

NAME

     ccmakedep - create dependencies in makefiles using a C com-
     piler

SYNOPSIS

     ccmakedep [ cpp-flags ] [ -wwidth ] [ -smagic-string ] [
     -fmakefile ] [ -oobject-suffix ] [ -v ] [ -a ] [ -cccompiler
     ] [ -- 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 alternate
     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 under-
     stand, 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 replac-
          ing existing dependencies.

     -cccompiler
          Use this compiler to generate dependencies.

     -fmakefile

XFree86                   Version 4.5.0                         1

ccmakedep(1)        UNIX Programmer's Manual         ccmakedep(1)

          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 run-
          ning 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, ccmak-
          edep 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.

SEE ALSO

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

AUTHOR

     ccmakedep was written by the X Consortium.

     Colin Watson wrote this manual page, originally for the
     Debian Project, based partly on the manual page for mak-
     edepend(1).

XFree86                   Version 4.5.0                         2

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