don't need special tags anymore
[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 5.18 (Berkeley) %G%
19#
20PATH=/bin:/usr/bin:/usr/ucb
21export PATH
22
23D=.depend # default dependency file is .depend
24append=0
25
26while :
27 do case "$1" in
28 # -a appends to the depend file
29 -a)
30 append=1
31 shift ;;
32
33 # -f allows you to select a makefile name
34 -f)
35 D=$2
36 shift; shift ;;
37
38 # the -p flag produces "program: program.c" style dependencies
39 # so .o's don't get produced
40 -p)
41 SED='s;\.o;;'
42 shift ;;
43 *)
44 break ;;
45 esac
46done
47
48if [ $# = 0 ] ; then
49 echo 'usage: mkdep [-p] [-f depend_file] [cc_flags] file ...'
50 exit 1
51fi
52
53TMP=/tmp/mkdep$$
54
55trap 'rm -f $TMP ; exit 1' 1 2 3 13 15
56
57cc -M $* |
58sed "
59 s; \./; ;g
60 /\.c:$/d
61 $SED" |
62awk '{
63 if ($1 != prev) {
64 if (rec != "")
65 print rec;
66 rec = $0;
67 prev = $1;
68 }
69 else {
70 if (length(rec $2) > 78) {
71 print rec;
72 rec = $0;
73 }
74 else
75 rec = rec " " $2
76 }
77}
78END {
79 print rec
80}' > $TMP
81
82if [ $? != 0 ]; then
83 echo 'mkdep: compile failed.'
84 rm -f $TMP
85 exit 1
86fi
87
88if [ $append = 1 ]; then
89 cat $TMP >> $D
90 rm -f $TMP
91else
92 mv $TMP $D
93fi
94exit 0