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executable file 110 lines (91 sloc) 2.35 kB
#!/bin/sh -
#
# Copyright (c) 1994, 1996
# The Regents of the University of California. All rights reserved.
#
# Redistribution and use in source and binary forms are permitted
# provided that this notice is preserved and that due credit is given
# to the University of California at 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'' without express or implied warranty.
#
# @(#)mkdep.sh 5.11 (Berkeley) 5/5/88
#
PATH=/bin:/usr/bin:/usr/ucb:/usr/local:/usr/local/bin
export PATH
MAKE=Makefile # default makefile name is "Makefile"
CC=cc # default C compiler is "cc"
while :
do case "$1" in
# -c allows you to specify the C compiler
-c)
CC=$2
shift; shift ;;
# -f allows you to select a makefile name
-f)
MAKE=$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] [-c cc] [-f makefile] [flags] file ...'
exit 1
fi
if [ ! -w $MAKE ]; then
echo "mkdep: no writeable file \"$MAKE\""
exit 1
fi
TMP=/tmp/mkdep$$
trap 'rm -f $TMP ; exit 1' 1 2 3 13 15
cp $MAKE ${MAKE}.bak
sed -e '/DO NOT DELETE THIS LINE/,$d' < $MAKE > $TMP
cat << _EOF_ >> $TMP
# DO NOT DELETE THIS LINE -- mkdep uses it.
# DO NOT PUT ANYTHING AFTER THIS LINE, IT WILL GO AWAY.
_EOF_
# If your compiler doesn't have -M, add it. If you can't, the next two
# lines will try and replace the "cc -M". The real problem is that this
# hack can't deal with anything that requires a search path, and doesn't
# even try for anything using bracket (<>) syntax.
#
# egrep '^#include[ ]*".*"' /dev/null $* |
# sed -e 's/:[^"]*"\([^"]*\)".*/: \1/' -e 's/\.c/.o/' |
# XXX this doesn't work with things like "-DDECLWAITSTATUS=union\ wait"
$CC -M $* |
sed "
s; \./; ;g
$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
cat << _EOF_ >> $TMP
# IF YOU PUT ANYTHING HERE IT WILL GO AWAY
_EOF_
# copy to preserve permissions
cp $TMP $MAKE
rm -f ${MAKE}.bak $TMP
exit 0
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