usr/src/pgrm/mkdep/mkdep.sh

#!/bin/sh -
#
# Copyright (c) 1987 Regents of the University of California.
# All rights reserved.
#
# Redistribution and use in source and binary forms are permitted
# provided that the above copyright notice and this paragraph are
# duplicated in all such forms and that any documentation,
# advertising materials, and other materials related to such
# distribution and use acknowledge that the software was developed
# by the University of California, Berkeley.  The name of the
# University may not be used to endorse or promote products derived
# from this software without specific prior written permission.
# THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
# WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
#
#       @(#)mkdep.sh    5.18 (Berkeley) 3/5/89
#
PATH=/bin:/usr/bin:/usr/ucb
export PATH

D=.depend                       # default dependency file is .depend
append=0

while :
        do case "$1" in
                # -a appends to the depend file
                -a)
                        append=1
                        shift ;;

                # -f allows you to select a makefile name
                -f)
                        D=$2
                        shift; shift ;;

                # the -p flag produces "program: program.c" style dependencies
                # so .o's don't get produced
                -p)
                        SED='s;\.o;;'
                        shift ;;
                *)
                        break ;;
        esac
done

if [ $# = 0 ] ; then
        echo 'usage: mkdep [-p] [-f depend_file] [cc_flags] file ...'
        exit 1
fi

TMP=/tmp/mkdep$$

trap 'rm -f $TMP ; exit 1' 1 2 3 13 15

cc -M $* |
sed "
        s; \./; ;g
        /\.c:$/d
        $SED" |
awk '{
        if ($1 != prev) {
                if (rec != "")
                        print rec;
                rec = $0;
                prev = $1;
        }
        else {
                if (length(rec $2) > 78) {
                        print rec;
                        rec = $0;
                }
                else
                        rec = rec " " $2
        }
}
END {
        print rec
}' > $TMP

if [ $? != 0 ]; then
        echo 'mkdep: compile failed.'
        rm -f $TMP
        exit 1
fi

if [ $append = 1 ]; then
        cat $TMP >> $D
        rm -f $TMP
else
        mv $TMP $D
fi
exit 0