xref: /freebsd/usr.bin/mkdep/mkdep.sh (revision 5e3190f700637fcfc1a52daeaa4a031fdd2557c7)
1#!/bin/sh -
2#
3# SPDX-License-Identifier: BSD-3-Clause
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. 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.
19#
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
30# SUCH DAMAGE.
31#
32#
33#	@(#)mkdep.sh	8.1 (Berkeley) 6/6/93
34#
35
36PATH=/bin:/usr/bin:/usr/ucb:/usr/old/bin
37export PATH
38
39D=.depend			# default dependency file is .depend
40append=0
41
42while :
43	do case "$1" in
44		# -a appends to the depend file
45		-a)
46			append=1
47			shift ;;
48
49		# -f allows you to select a makefile name
50		-f)
51			D=$2
52			shift; shift ;;
53
54		# the -p flag produces "program: program.c" style dependencies
55		# so .o's don't get produced
56		-p)
57			SED='s;\.o ; ;'
58			shift ;;
59		*)
60			break ;;
61	esac
62done
63
64if [ $# = 0 ] ; then
65	echo 'usage: mkdep [-p] [-f depend_file] [cc_flags] file ...'
66	exit 1
67fi
68
69TMP=/tmp/mkdep$$
70
71trap 'rm -f $TMP ; trap 2 ; kill -2 $$' 1 2 3 13 15
72
73cc -M $* |
74sed "
75	s; \./; ;g
76	/\.c:$/d
77	$SED" |
78awk '{
79	if ($1 != prev) {
80		if (rec != "")
81			print rec;
82		rec = $0;
83		prev = $1;
84	}
85	else {
86		if (length(rec $2) > 78) {
87			print rec;
88			rec = $0;
89		}
90		else
91			rec = rec " " $2
92	}
93}
94END {
95	print rec
96}' > $TMP
97
98if [ $? != 0 ]; then
99	echo 'mkdep: compile failed.'
100	rm -f $TMP
101	exit 1
102fi
103
104if [ $append = 1 ]; then
105	cat $TMP >> $D
106	rm -f $TMP
107else
108	mv $TMP $D
109fi
110exit 0
111