xref: /openbsd/usr.bin/mkdep/mkdep.gcc.sh (revision 78b63d65) 
1#!/bin/sh -
2#
3#	$OpenBSD: mkdep.gcc.sh,v 1.10 2000/07/23 22:22:07 millert Exp $
4#	$NetBSD: mkdep.gcc.sh,v 1.9 1994/12/23 07:34:59 jtc Exp $
5#
6# Copyright (c) 1991, 1993
7#	The Regents of the University of California.  All rights reserved.
8#
9# Redistribution and use in source and binary forms, with or without
10# modification, are permitted provided that the following conditions
11# are met:
12# 1. Redistributions of source code must retain the above copyright
13#    notice, this list of conditions and the following disclaimer.
14# 2. Redistributions in binary form must reproduce the above copyright
15#    notice, this list of conditions and the following disclaimer in the
16#    documentation and/or other materials provided with the distribution.
17# 3. All advertising materials mentioning features or use of this software
18#    must display the following acknowledgement:
19#	This product includes software developed by the University of
20#	California, Berkeley and its contributors.
21# 4. Neither the name of the University nor the names of its contributors
22#    may be used to endorse or promote products derived from this software
23#    without specific prior written permission.
24#
25# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35# SUCH DAMAGE.
36#
37#	@(#)mkdep.gcc.sh	8.1 (Berkeley) 6/6/93
38#
39
40D=.depend			# default dependency file is .depend
41append=0
42pflag=
43
44while :
45	do case "$1" in
46		# -a appends to the depend file
47		-a)
48			append=1
49			shift ;;
50
51		# -f allows you to select a makefile name
52		-f)
53			D=$2
54			shift; shift ;;
55
56		# the -p flag produces "program: program.c" style dependencies
57		# so .o's don't get produced
58		-p)
59			pflag=p
60			shift ;;
61		*)
62			break ;;
63	esac
64done
65
66if [ $# = 0 ] ; then
67	echo 'usage: mkdep [-p] [-f depend_file] [cc_flags] file ...'
68	exit 1
69fi
70
71DTMP=/tmp/mkdep$$
72TMP=$DTMP/mkdep
73
74um=`umask`
75umask 022
76if ! mkdir $DTMP ; then
77	echo failed to create tmp dir $DTMP
78	exit 1
79fi
80
81umask $um
82trap 'rm -rf $DTMP ; trap 2 ; kill -2 $$' 1 2 3 13 15
83
84if [ x$pflag = x ]; then
85	${CC:-cc} -M "$@" | sed -e 's; \./; ;g' > $TMP
86else
87	${CC:-cc} -M "$@" | sed -e 's;\.o[ ]*:; :;' -e 's; \./; ;g' > $TMP
88fi
89
90if [ $? != 0 ]; then
91	echo 'mkdep: compile failed.'
92	rm -rf $DTMP
93	exit 1
94fi
95
96if [ $append = 1 ]; then
97	cat $TMP >> $D
98	if [ $? != 0 ]; then
99		echo 'mkdep: append failed.'
100		rm -rf $DTMP
101		exit 1
102	fi
103else
104	mv -f $TMP $D
105	if [ $? != 0 ]; then
106		echo 'mkdep: rename failed.'
107		rm -rf $DTMP
108		exit 1
109	fi
110fi
111
112rm -rf $DTMP
113exit 0
114