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#!/bin/sh -e
#
# 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
#
MAKE=Makefile # default makefile name is "Makefile"
CC=cc # default C compiler is "cc"
DEPENDENCY_CFLAG=-M # default dependency-generation flag is -M
SOURCE_DIRECTORY=. # default source directory is the current directory
# No command-line flags seen yet.
flags=""
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 ;;
# -m allows you to specify the dependency-generation flag
-m)
DEPENDENCY_CFLAG=$2
shift; shift ;;
# the -p flag produces "program: program.c" style dependencies
# so .o's don't get produced
-p)
SED='s;\.o;;'
shift ;;
# -s allows you to specify the source directory
-s)
SOURCE_DIRECTORY=$2
shift; shift ;;
# other command-line flag
-*)
flags="$flags $1"
shift ;;
*)
break ;;
esac
done
if [ $# = 0 ] ; then
echo 'usage: mkdep [-p] [-c cc] [-f makefile] [-m dependency-cflag] [-s source-directory] [flags] file ...'
exit 1
fi
if [ ! -w "$MAKE" ]; then
echo "mkdep: no writeable file \"$MAKE\""
exit 1
fi
TMP=${TMPDIR:-/tmp}/mkdep$$
trap 'rm -f "$TMP" ; exit 1' HUP INT QUIT PIPE TERM
cp "$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.
#
# grep -E '^#include[[:blank:]]*".*"' /dev/null $* |
# sed -e 's/:[^"]*"\([^"]*\)".*/: \1/' -e 's/\.c/.o/' |
#
# Construct a list of source files with paths relative to the source directory.
#
sources=""
for srcfile in "$@"
do
sources="$sources $SOURCE_DIRECTORY/$srcfile"
done
# XXX this doesn't work with things like "-DDECLWAITSTATUS=union\ wait"
# $flags and $sources are meant to expand
# shellcheck disable=SC2086
"$CC" "$DEPENDENCY_CFLAG" $flags $sources |
sed "
s; \./; ;g
$SED" >> "$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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