Manual page for MD(8)
md - create makefile dependencies from .d files created by -MD option to cc
SYNOPSIS
md [-f][-D][-m makefile][-o outputfile][-v] file ...
DESCRIPTION
md
processes the raw dependency files produced by the
cpp -MD
option. There is one line in the file for every #include
encountered, but repeats and patterns
like .../dir1/../dir2 appear which should reduce to .../dir2.
Md
canonicalizes and flushes repeats from the dependency
list. It also sorts the file names and "fills" them to a 78
character line.
Md
assumes that dependency
information is sorted by .o file name and it
proceeds to merge in (adding or replacing, as appropriate) the new
dependency lines it has generated. For efficiency,
md
assumes that any .d files it is given that were created
before the creation date of the "makefile" were processed
already.
The options are:
- -f
-
force an update of the dependencies
even though the dependency file is more recent than the .d file
(This implies that
md
has been run already.) This is the default.
- -D
-
subswitch for debugging. Expert mode.
- -m makefile
-
specifies the dependency file to be upgraded. If -m is not explicitly
specified then the dependencies are updated in either
makefile
or
Makefile.
- -o <outputfile>
-
specifies a dependency file to be updated. If this file doesn't
initially exist it is created.
- -v
-
set the verbose flag
FILES
Makefile, makefile
HISTORY
- 09-Oct-86 Robert Baron (rvb) at Carnegie-Mellon University
-
Created.
Created by unroff & hp-tools.
© somebody (See intro for details). All Rights Reserved.
Last modified 11/5/97
