freebsd-nq/usr.bin/mkdep/mkdep.gcc.sh
Bruce Evans 207a4c998a Use cc -E instead of cpp for the preprocessor by default. cc -E is
correct for C sources that are compiled by cc, while cpp (/usr/bin/cpp)
is bogus since it invokes /usr/libexec/cpp with different flags.
1.1.5 uses plain cc.  This should be equivalent after -M is added, but
cc -M foo.s is completely broken (it invokes the assembler) while
cc -E -M foo.s just does nothing instead of generating a foo.o: foo.s
dependency.

IF $MKDEP_CPP is set, use it as the cpp instead of cc -E.  Assembler
sources that are preprocessed using cpp directly should be mkdep'ed
with MKDEP_CPP=cpp.  Such sources shouldn't exist but we still have
lots.  foo.S should be compiled by cc -traditional (cc will invoke the
preprocessor) and foo.s should be compiled by cc (cc won't invoke the
preprocessor).
1994-08-30 16:36:49 +00:00

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#!/bin/sh -
#
# Copyright (c) 1991, 1993
# The Regents of the University of California. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. All advertising materials mentioning features or use of this software
# must display the following acknowledgement:
# This product includes software developed by the University of
# California, Berkeley and its contributors.
# 4. Neither the name of the University nor the names of its contributors
# may be used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# @(#)mkdep.gcc.sh 8.1 (Berkeley) 6/6/93
#
PATH=/bin:/usr/bin:/usr/ucb
export PATH
D=.depend # default dependency file is .depend
append=0
pflag=
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)
pflag=p
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 $TMP ; exit 1' 1 2 3 13 15
# For C sources, mkdep must use exactly the same cpp and predefined flags
# as the compiler would. This is easily arranged by letting the compiler
# pick the cpp. mkdep must be told the cpp to use for exceptional cases.
MKDEP_CPP=${MKDEP_CPP-"cc -E"}
if [ x$pflag = x ]; then
$MKDEP_CPP -M $* | sed -e 's; \./; ;g' > $TMP
else
$MKDEP_CPP -M $* | sed -e 's;\.o :; :;' -e 's; \./; ;g' > $TMP
fi
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