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[unix-history] / usr / src / usr.bin / mkdep / mkdep.sh
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1#!/bin/sh -
2#
3# Copyright (c) 1987 Regents of the University of California.
4# All rights reserved.
5#
6# Redistribution and use in source and binary forms are permitted
7# provided that the above copyright notice and this paragraph are
8# duplicated in all such forms and that any documentation,
9# advertising materials, and other materials related to such
10# distribution and use acknowledge that the software was developed
11# by the University of California, Berkeley. The name of the
12# University may not be used to endorse or promote products derived
13# from this software without specific prior written permission.
14# THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
15# IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
16# WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
17#
18# @(#)mkdep.sh 5.12 (Berkeley) %G%
19#
20PATH=/bin:/usr/bin:/usr/ucb
21export PATH
22
23MAKE=Makefile # default makefile name is "Makefile"
24
25while :
26 do case "$1" in
27 # -f allows you to select a makefile name
28 -f)
29 MAKE=$2
30 shift; shift ;;
31
32 # the -p flag produces "program: program.c" style dependencies
33 # so .o's don't get produced
34 -p)
35 SED='s;\.o;;'
36 shift ;;
37 *)
38 break ;;
39 esac
40done
41
42if [ $# = 0 ] ; then
43 echo 'usage: mkdep [-p] [-f makefile] [flags] file ...'
44 exit 1
45fi
46
47if [ ! -w $MAKE ]; then
48 echo "mkdep: no writeable file \"$MAKE\""
49 exit 1
50fi
51
52TMP=/tmp/mkdep$$
53
54trap 'rm -f $TMP ; exit 1' 1 2 3 13 15
55
56cp $MAKE ${MAKE}.bak
57
58sed -e '/DO NOT DELETE THIS LINE/,$d' < $MAKE > $TMP
59
60cat << _EOF_ >> $TMP
61# DO NOT DELETE THIS LINE -- mkdep uses it.
62# DO NOT PUT ANYTHING AFTER THIS LINE, IT WILL GO AWAY.
63
64_EOF_
65
66# If your compiler doesn't have -M, add it. If you can't, the next two
67# lines will try and replace the "cc -M". The real problem is that this
68# hack can't deal with anything that requires a search path, and doesn't
69# even try for anything using bracket (<>) syntax.
70#
71# egrep '^#include[ ]*".*"' /dev/null $* |
72# sed -e 's/:[^"]*"\([^"]*\)".*/: \1/' -e 's/\.c/.o/' |
73
74cc -M $* |
75sed "
76 s; \./; ;g
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
98cat << _EOF_ >> $TMP
99
100# IF YOU PUT ANYTHING HERE IT WILL GO AWAY
101_EOF_
102
103# copy to preserve permissions
104cp $TMP $MAKE
105rm -f ${MAKE}.bak $TMP
106exit 0