xref: /netbsd/tools/host-mkdep/host-mkdep.in (revision bf9ec67e) 
1#!/bin/sh -
2#
3#	$NetBSD: host-mkdep.in,v 1.2 2002/01/28 19:26:35 tv Exp $
4#
5# Copyright (c) 1991, 1993
6#	The Regents of the University of California.  All rights reserved.
7#
8# Redistribution and use in source and binary forms, with or without
9# modification, are permitted provided that the following conditions
10# are met:
11# 1. Redistributions of source code must retain the above copyright
12#    notice, this list of conditions and the following disclaimer.
13# 2. Redistributions in binary form must reproduce the above copyright
14#    notice, this list of conditions and the following disclaimer in the
15#    documentation and/or other materials provided with the distribution.
16# 3. All advertising materials mentioning features or use of this software
17#    must display the following acknowledgement:
18#	This product includes software developed by the University of
19#	California, Berkeley and its contributors.
20# 4. Neither the name of the University nor the names of its contributors
21#    may be used to endorse or promote products derived from this software
22#    without specific prior written permission.
23#
24# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34# SUCH DAMAGE.
35#
36#	@(#)mkdep.old.compiler	8.1 (Berkeley) 6/6/93
37#
38
39APPEND=false
40CPPFLAGS=
41NEWEXT=.o
42OUTFILE=.depend
43SRCS=
44
45while [ $# -gt 0 ]; do
46	case "$1" in
47	-a)	APPEND=true; shift;;
48
49	-f)	OUTFILE=$2; shift; shift;;
50
51	-p)	NEWEXT=; shift;;
52
53	*)	break;;
54	esac
55done
56
57if [ $# = 0 ] ; then
58	echo "usage: $0 [-a] [-p] [-f makefile] [flags] file ..."
59	exit 1
60fi
61
62while [ $# -gt 0 ]; do
63	case "$1" in
64	-L)		shift; shift;; # takes an arg, but ignored
65
66	-c|-[lLMOW]*)	shift;; # takes no extra args
67
68	-[IDU]*)	CPPFLAGS="$CPPFLAGS $1"; shift;;
69
70	-[IDU]|-include)
71			CPPFLAGS="$CPPFLAGS $1 $2"; shift; shift;;
72
73	-*)		echo "$0: unknown option: $1"; exit 1;; # all other -options
74
75	*)		SRCS="$SRCS $1"; shift;; # source file
76	esac
77done
78
79TMP=/tmp/mkdep$$
80rm -f $TMP
81
82trap 'rm -f $TMP; exit 1' 1 2 3 13 15
83
84for f in $SRCS; do
85	@CPP@ $CPPFLAGS $f | @AWK@ '
86		BEGIN {
87			objfile = "'$f'"
88			sub(/^.*\//, "", objfile)
89			sub(/\.(c|cc|m)$/, "'$NEWEXT'", objfile)
90		}
91		/^#/ {
92			# Be as tolerant as possible.
93			sub(/^#(line)? [ 0-9]*\"?/, "")
94			sub(/\".*$/, "")
95			sub(/ [ 0-9]*$/, "")
96
97			if ($0 in seenfiles) next
98			if ($0 ~ /y.tab.c/) next
99
100			seenfiles[$0] = 1
101			print objfile ": " $0
102		}
103	' >>$TMP
104done
105
106if $APPEND; then
107	cat $TMP >>$OUTFILE
108else
109	cat $TMP >$OUTFILE
110fi
111
112rm -f $TMP
113exit 0
114