1 .\" Copyright (c) 1987, 1990, 1993
2 .\" The Regents of the University of California. All rights reserved.
4 .\" Redistribution and use in source and binary forms, with or without
5 .\" modification, are permitted provided that the following conditions
7 .\" 1. Redistributions of source code must retain the above copyright
8 .\" notice, this list of conditions and the following disclaimer.
9 .\" 2. Redistributions in binary form must reproduce the above copyright
10 .\" notice, this list of conditions and the following disclaimer in the
11 .\" documentation and/or other materials provided with the distribution.
12 .\" 3. All advertising materials mentioning features or use of this software
13 .\" must display the following acknowledgement:
14 .\" This product includes software developed by the University of
15 .\" California, Berkeley and its contributors.
16 .\" 4. Neither the name of the University nor the names of its contributors
17 .\" may be used to endorse or promote products derived from this software
18 .\" without specific prior written permission.
20 .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 .\" @(#)mkdep.1 8.1 (Berkeley) 6/6/93
33 .\" $FreeBSD: src/usr.bin/mkdep/mkdep.1,v 1.7.2.7 2002/12/29 16:35:40 schweikh Exp $
34 .\" $DragonFly: src/usr.bin/mkdep/mkdep.1,v 1.3 2006/02/17 19:39:09 swildner Exp $
41 .Nd construct Makefile dependency list
51 utility takes a set of flags for the C compiler and a list
52 of C source files as arguments and constructs a set of include
53 file dependencies which are written into the file ``.depend''.
54 An example of its use in a Makefile might be:
55 .Bd -literal -offset indent
56 CFLAGS= -O -I../include
60 mkdep ${CFLAGS} ${SRCS}
63 where the macro SRCS is the list of C source files and the macro
64 CFLAGS is the list of flags for the C compiler.
66 The user has the ability to change the preprocessor and preprocessor options
67 used. For instance, to use gcc as the preprocessor and to ignore system
68 headers, one would use
69 .Bd -literal -offset indent
71 env MKDEP_CPP="gcc -E" MKDEP_CPP_OPTS=-MM mkdep \\
75 The options are as follows:
78 Append to the output file,
81 may be run from a single Makefile.
83 Write the include file dependencies to
85 instead of the default ``.depend''.
89 to produce dependencies of the form:
90 .Bd -literal -offset indent
94 so that subsequent makes will produce
96 directly from its C module rather than using an intermediate
99 This is useful for programs whose source is contained in a single
103 .Bl -tag -width MKDEP_CPP_OPTS
105 Specifies the C compiler to use. The specified compiler is expected to have
106 options consistent with the GNU C compiler.
108 Specifies the preprocessor to use. The default is "${CC} -E".
109 .It Ev MKDEP_CPP_OPTS
110 Specifies the non-CFLAGS options for the preprocessor. The default is
114 .Bl -tag -width .depend -compact
116 File containing list of dependencies.