xref: /original-bsd/usr.bin/mkdep/mkdep.append (revision c3e32dec)
1#!/bin/sh -
2#
3# Copyright (c) 1991, 1993
4#	The Regents of the University of California.  All rights reserved.
5#
6# %sccs.include.redist.sh%
7#
8#	@(#)mkdep.append	8.1 (Berkeley) 06/06/93
9#
10
11PATH=/bin:/usr/bin:/usr/ucb
12export PATH
13
14MAKE=Makefile			# default makefile name is "Makefile"
15
16while :
17	do case "$1" in
18		# -f allows you to select a makefile name
19		-f)
20			MAKE=$2
21			shift; shift ;;
22
23		# the -p flag produces "program: program.c" style dependencies
24		# so .o's don't get produced
25		-p)
26			SED='s;\.o;;'
27			shift ;;
28		*)
29			break ;;
30	esac
31done
32
33if [ $# = 0 ] ; then
34	echo 'usage: mkdep [-p] [-f makefile] [flags] file ...'
35	exit 1
36fi
37
38if [ ! -w $MAKE ]; then
39	echo "mkdep: no writeable file \"$MAKE\""
40	exit 1
41fi
42
43TMP=/tmp/mkdep$$
44
45trap 'rm -f $TMP ; exit 1' 1 2 3 13 15
46
47cp $MAKE ${MAKE}.bak
48
49sed -e '/DO NOT DELETE THIS LINE/,$d' < $MAKE > $TMP
50
51cat << _EOF_ >> $TMP
52# DO NOT DELETE THIS LINE -- mkdep uses it.
53# DO NOT PUT ANYTHING AFTER THIS LINE, IT WILL GO AWAY.
54
55_EOF_
56
57# If your compiler doesn't have -M, add it.  If you can't, the next two
58# lines will try and replace the "cc -M".  The real problem is that this
59# hack can't deal with anything that requires a search path, and doesn't
60# even try for anything using bracket (<>) syntax.
61#
62# egrep '^#include[ 	]*".*"' /dev/null $* |
63# sed -e 's/:[^"]*"\([^"]*\)".*/: \1/' -e 's/\.c/.o/' |
64
65cc -M $* |
66sed "
67	s; \./; ;g
68	$SED" |
69awk '{
70	if ($1 != prev) {
71		if (rec != "")
72			print rec;
73		rec = $0;
74		prev = $1;
75	}
76	else {
77		if (length(rec $2) > 78) {
78			print rec;
79			rec = $0;
80		}
81		else
82			rec = rec " " $2
83	}
84}
85END {
86	print rec
87}' >> $TMP
88
89cat << _EOF_ >> $TMP
90
91# IF YOU PUT ANYTHING HERE IT WILL GO AWAY
92_EOF_
93
94# copy to preserve permissions
95cp $TMP $MAKE
96rm -f ${MAKE}.bak $TMP
97exit 0
98