summaryrefslogtreecommitdiff
path: root/gccmakedep.in
blob: 0c113064f06dbbaa95383d6cfbff7317eed06412 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
#!/bin/sh

#
# makedepend which uses 'gcc -M'
#
# $XFree86: xc/config/util/gccmdep.cpp,v 3.10tsi Exp $
#
# Based on mdepend.cpp and code supplied by Hongjiu Lu <hjl@nynexst.com>
#

TMP=mdep$$.tmp
CC="@CC@"
RM="rm -f"
LN="ln"
MV="mv"

${RM} ${TMP}

trap "${RM} ${TMP}*; exit 1" 1 2 15
trap "${RM} ${TMP}*; exit 0" 1 2 13

files=
makefile=
endmarker=
magic_string='# DO NOT DELETE'
append=n
args=

while [ $# != 0 ]; do
    if [ "$endmarker"x != x -a "$endmarker" = "$1" ]; then
	endmarker=
    else
	case "$1" in
	    -D*|-I*|-U*|-std=*)
# arg may contain single quotes
		qarg=`echo "$1" | sed "s/'/'\\\\\\\\''/g"`
                args="$args '$qarg'"
		;;
	    -g*|-O*)
		;;
	    *)
		if [ "$endmarker"x = x ]; then
		    case $1 in
# ignore these flags
			-w|-o|-cc)
			    shift
			    ;;
			-v)
			    ;;
			-s)
			    magic_string="$2"
			    shift
			    ;;
			-f*)
			    if [ "$1" = "-f-" ]; then
				makefile="-"
			    elif [ "$1" = "-f" ]; then
				makefile="$2"
				shift
			    else
				echo "$1" | sed 's/^\-f//' >${TMP}arg
				makefile="`cat ${TMP}arg`"
				rm -f ${TMP}arg
			    fi
			    ;;
			--*)
			    endmarker=`echo $1 | sed 's/^\-\-//'`
			    if [ "$endmarker"x = x ]; then
				endmarker="--"
			    fi
			    ;;
			-a)
			    append=y
			    ;;
			-*)
			    echo "Unknown option '$1' ignored" 1>&2
			    ;;
			*)
# filename may contain blanks
			    files="$files '$1'"
			    ;;
		    esac
		fi
		;;
	esac
    fi
    shift
done

if [ x"$files" = x ]; then
# Nothing to do
    exit 0
fi

case "$makefile" in
    '')
	if [ -r makefile ]; then
	    makefile=makefile
	elif [ -r Makefile ]; then
	    makefile=Makefile
	else
	    echo 'no makefile or Makefile found' 1>&2
	    exit 1
	fi
	;;
esac

if [ X"$makefile" != X- ]; then
    if [ x"$append" = xn ]; then
        sed -e "/^$magic_string/,\$d" < $makefile > $TMP
        echo "$magic_string" >> $TMP
    else
        cp $makefile $TMP
    fi
fi

CMD="$CC -M $args $files"
if [ X"$makefile" != X- ]; then
    CMD="$CMD >> $TMP"
fi
# Do not wildcard expand '*' in args
eval "$CMD"
if [ X"$makefile" != X- ]; then
    $RM ${makefile}.bak
    $MV $makefile ${makefile}.bak
    $MV $TMP $makefile
fi

$RM ${TMP}*
exit 0