1#!/bin/sh -
2#
3# Copyright (c) 1994, 1996
4#	The Regents of the University of California.  All rights reserved.
5#
6# Redistribution and use in source and binary forms are permitted
7# provided that this notice is preserved and that due credit is given
8# to the University of California at Berkeley. The name of the University
9# may not be used to endorse or promote products derived from this
10# software without specific prior written permission. This software
11# is provided ``as is'' without express or implied warranty.
12#
13#	@(#)mkdep.sh	5.11 (Berkeley) 5/5/88
14#
15
16PATH=/bin:/usr/bin:/usr/ucb:/usr/local:/usr/local/bin
17export PATH
18
19MAKE=Makefile			# default makefile name is "Makefile"
20CC=cc				# default C compiler is "cc"
21
22while :
23	do case "$1" in
24		# -c allows you to specify the C compiler
25		-c)
26			CC=$2
27			shift; shift ;;
28
29		# -f allows you to select a makefile name
30		-f)
31			MAKE=$2
32			shift; shift ;;
33
34		# the -p flag produces "program: program.c" style dependencies
35		# so .o's don't get produced
36		-p)
37			SED='s;\.o;;'
38			shift ;;
39		*)
40			break ;;
41	esac
42done
43
44if [ $# = 0 ] ; then
45	echo 'usage: mkdep [-p] [-c cc] [-f makefile] [flags] file ...'
46	exit 1
47fi
48
49if [ ! -w $MAKE ]; then
50	echo "mkdep: no writeable file \"$MAKE\""
51	exit 1
52fi
53
54TMP=/tmp/mkdep$$
55
56trap 'rm -f $TMP ; exit 1' 1 2 3 13 15
57
58cp $MAKE ${MAKE}.bak
59
60sed -e '/DO NOT DELETE THIS LINE/,$d' < $MAKE > $TMP
61
62cat << _EOF_ >> $TMP
63# DO NOT DELETE THIS LINE -- mkdep uses it.
64# DO NOT PUT ANYTHING AFTER THIS LINE, IT WILL GO AWAY.
65
66_EOF_
67
68# If your compiler doesn't have -M, add it.  If you can't, the next two
69# lines will try and replace the "cc -M".  The real problem is that this
70# hack can't deal with anything that requires a search path, and doesn't
71# even try for anything using bracket (<>) syntax.
72#
73# egrep '^#include[ 	]*".*"' /dev/null $* |
74# sed -e 's/:[^"]*"\([^"]*\)".*/: \1/' -e 's/\.c/.o/' |
75
76# XXX this doesn't work with things like "-DDECLWAITSTATUS=union\ wait"
77$CC -M $* |
78sed "
79	s; \./; ;g
80	$SED" |
81awk '{
82	if ($1 != prev) {
83		if (rec != "")
84			print rec;
85		rec = $0;
86		prev = $1;
87	}
88	else {
89		if (length(rec $2) > 78) {
90			print rec;
91			rec = $0;
92		}
93		else
94			rec = rec " " $2
95	}
96}
97END {
98	print rec
99}' >> $TMP
100
101cat << _EOF_ >> $TMP
102
103# IF YOU PUT ANYTHING HERE IT WILL GO AWAY
104_EOF_
105
106# copy to preserve permissions
107cp $TMP $MAKE
108rm -f ${MAKE}.bak $TMP
109exit 0
110