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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
16MAKE=Makefile			# default makefile name is "Makefile"
17CC=cc				# default C compiler is "cc"
18DEPENDENCY_CFLAG=-M		# default dependency-generation flag is -M
19
20while :
21	do case "$1" in
22		# -c allows you to specify the C compiler
23		-c)
24			CC=$2
25			shift; shift ;;
26
27		# -f allows you to select a makefile name
28		-f)
29			MAKE=$2
30			shift; shift ;;
31
32		# -m allows you to specify the dependency-generation flag
33		-m)
34			DEPENDENCY_CFLAG=$2
35			shift; shift ;;
36
37		# the -p flag produces "program: program.c" style dependencies
38		# so .o's don't get produced
39		-p)
40			SED='s;\.o;;'
41			shift ;;
42		*)
43			break ;;
44	esac
45done
46
47if [ $# = 0 ] ; then
48	echo 'usage: mkdep [-p] [-c cc] [-f makefile] [-m dependency-cflag] [flags] file ...'
49	exit 1
50fi
51
52if [ ! -w $MAKE ]; then
53	echo "mkdep: no writeable file \"$MAKE\""
54	exit 1
55fi
56
57TMP=/tmp/mkdep$$
58
59trap 'rm -f $TMP ; exit 1' 1 2 3 13 15
60
61cp $MAKE ${MAKE}.bak
62
63sed -e '/DO NOT DELETE THIS LINE/,$d' < $MAKE > $TMP
64
65cat << _EOF_ >> $TMP
66# DO NOT DELETE THIS LINE -- mkdep uses it.
67# DO NOT PUT ANYTHING AFTER THIS LINE, IT WILL GO AWAY.
68
69_EOF_
70
71# If your compiler doesn't have -M, add it.  If you can't, the next two
72# lines will try and replace the "cc -M".  The real problem is that this
73# hack can't deal with anything that requires a search path, and doesn't
74# even try for anything using bracket (<>) syntax.
75#
76# egrep '^#include[ 	]*".*"' /dev/null $* |
77# sed -e 's/:[^"]*"\([^"]*\)".*/: \1/' -e 's/\.c/.o/' |
78
79# XXX this doesn't work with things like "-DDECLWAITSTATUS=union\ wait"
80$CC $DEPENDENCY_CFLAG $* |
81sed "
82	s; \./; ;g
83	$SED" |
84awk '{
85	if ($1 != prev) {
86		if (rec != "")
87			print rec;
88		rec = $0;
89		prev = $1;
90	}
91	else {
92		if (length(rec $2) > 78) {
93			print rec;
94			rec = $0;
95		}
96		else
97			rec = rec " " $2
98	}
99}
100END {
101	print rec
102}' >> $TMP
103
104cat << _EOF_ >> $TMP
105
106# IF YOU PUT ANYTHING HERE IT WILL GO AWAY
107_EOF_
108
109# copy to preserve permissions
110cp $TMP $MAKE
111rm -f ${MAKE}.bak $TMP
112exit 0
113