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	#! /bin/sh
	# depcomp - compile a program generating dependencies as side-effects

	scriptversion=2004-05-31.23

	# Copyright (C) 1999, 2000, 2003, 2004 Free Software Foundation, Inc.

	# This program is free software; you can redistribute it and/or modify
	# it under the terms of the GNU General Public License as published by
	# the Free Software Foundation; either version 2, or (at your option)
	# any later version.

	# This program is distributed in the hope that it will be useful,
	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	# GNU General Public License for more details.

	# You should have received a copy of the GNU General Public License
	# along with this program; if not, write to the Free Software
	# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
	# 02111-1307, USA.

	# As a special exception to the GNU General Public License, if you
	# distribute this file as part of a program that contains a
	# configuration script generated by Autoconf, you may include it under
	# the same distribution terms that you use for the rest of that program.

	# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.

	case $1 in
	'')
	echo "$0: No command. Try \`$0 --help' for more information." 1>&2
	exit 1;
	;;
	-h \| --h*)
	cat <<\EOF
	Usage: depcomp [--help] [--version] PROGRAM [ARGS]

	Run PROGRAMS ARGS to compile a file, generating dependencies
	as side-effects.

	Environment variables:
	depmode Dependency tracking mode.
	source Source file read by `PROGRAMS ARGS'.
	object Object file output by `PROGRAMS ARGS'.
	DEPDIR directory where to store dependencies.
	depfile Dependency file to output.
	tmpdepfile Temporary file to use when outputing dependencies.
	libtool Whether libtool is used (yes/no).

	Report bugs to <bug-automake@gnu.org>.
	EOF
	exit 0
	;;
	-v \| --v*)
	echo "depcomp $scriptversion"
	exit 0
	;;
	esac

	if test -z "$depmode" \|\| test -z "$source" \|\| test -z "$object"; then
	echo "depcomp: Variables source, object and depmode must be set" 1>&2
	exit 1
	fi

	# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
	depfile=${depfile-`echo "$object" \|
	sed 's\|[^\\/]$\|'${DEPDIR-.deps}'/&\|;s\|\.$[^.]$$\|.P\1\|;s\|Pobj$\|Po\|'`}
	tmpdepfile=${tmpdepfile-`echo "$depfile" \| sed 's/\.$[^.]*$$/.T\1/'`}

	rm -f "$tmpdepfile"

	# Some modes work just like other modes, but use different flags. We
	# parameterize here, but still list the modes in the big case below,
	# to make depend.m4 easier to write. Note that we cannot use a case
	# here, because this file can only contain one case statement.
	if test "$depmode" = hp; then
	# HP compiler uses -M and no extra arg.
	gccflag=-M
	depmode=gcc
	fi

	if test "$depmode" = dashXmstdout; then
	# This is just like dashmstdout with a different argument.
	dashmflag=-xM
	depmode=dashmstdout
	fi

	case "$depmode" in
	gcc3)
	## gcc 3 implements dependency tracking that does exactly what
	## we want. Yay! Note: for some reason libtool 1.4 doesn't like
	## it if -MD -MP comes after the -MF stuff. Hmm.
	"$@" -MT "$object" -MD -MP -MF "$tmpdepfile"
	stat=$?
	if test $stat -eq 0; then :
	else
	rm -f "$tmpdepfile"
	exit $stat
	fi
	mv "$tmpdepfile" "$depfile"
	;;

	gcc)
	## There are various ways to get dependency output from gcc. Here's
	## why we pick this rather obscure method:
	## - Don't want to use -MD because we'd like the dependencies to end
	## up in a subdir. Having to rename by hand is ugly.
	## (We might end up doing this anyway to support other compilers.)
	## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
	## -MM, not -M (despite what the docs say).
	## - Using -M directly means running the compiler twice (even worse
	## than renaming).
	if test -z "$gccflag"; then
	gccflag=-MD,
	fi
	"$@" -Wp,"$gccflag$tmpdepfile"
	stat=$?
	if test $stat -eq 0; then :
	else
	rm -f "$tmpdepfile"
	exit $stat
	fi
	rm -f "$depfile"
	echo "$object : \\" > "$depfile"
	alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
	## The second -e expression handles DOS-style file names with drive letters.
	sed -e 's/^[^:]*: / /' \
	-e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
	## This next piece of magic avoids the `deleted header file' problem.
	## The problem is that when a header file which appears in a .P file
	## is deleted, the dependency causes make to die (because there is
	## typically no way to rebuild the header). We avoid this by adding
	## dummy dependencies for each header file. Too bad gcc doesn't do
	## this for us directly.
	tr ' ' '
	' < "$tmpdepfile" \|
	## Some versions of gcc put a space before the `:'. On the theory
	## that the space means something, we add a space to the output as
	## well.
	## Some versions of the HPUX 10.20 sed can't process this invocation
	## correctly. Breaking it into two sed invocations is a workaround.
	sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \| sed -e 's/$/ :/' >> "$depfile"
	rm -f "$tmpdepfile"
	;;

	hp)
	# This case exists only to let depend.m4 do its work. It works by
	# looking at the text of this script. This case will never be run,
	# since it is checked for above.
	exit 1
	;;

	sgi)
	if test "$libtool" = yes; then
	"$@" "-Wp,-MDupdate,$tmpdepfile"
	else
	"$@" -MDupdate "$tmpdepfile"
	fi
	stat=$?
	if test $stat -eq 0; then :
	else
	rm -f "$tmpdepfile"
	exit $stat
	fi
	rm -f "$depfile"

	if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
	echo "$object : \\" > "$depfile"

	# Clip off the initial element (the dependent). Don't try to be
	# clever and replace this with sed code, as IRIX sed won't handle
	# lines with more than a fixed number of characters (4096 in
	# IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
	# the IRIX cc adds comments like `#:fec' to the end of the
	# dependency line.
	tr ' ' '
	' < "$tmpdepfile" \
	\| sed -e 's/^.\.o://' -e 's/#.$//' -e '/^$/ d' \| \
	tr '
	' ' ' >> $depfile
	echo >> $depfile

	# The second pass generates a dummy entry for each header file.
	tr ' ' '
	' < "$tmpdepfile" \
	\| sed -e 's/^.\.o://' -e 's/#.$//' -e '/^$/ d' -e 's/$/:/' \
	>> $depfile
	else
	# The sourcefile does not contain any dependencies, so just
	# store a dummy comment line, to avoid errors with the Makefile
	# "include basename.Plo" scheme.
	echo "#dummy" > "$depfile"
	fi
	rm -f "$tmpdepfile"
	;;

	aix)
	# The C for AIX Compiler uses -M and outputs the dependencies
	# in a .u file. In older versions, this file always lives in the
	# current directory. Also, the AIX compiler puts `$object:' at the
	# start of each line; $object doesn't have directory information.
	# Version 6 uses the directory in both cases.
	stripped=`echo "$object" \| sed 's/$.$\..$/\1/'`
	tmpdepfile="$stripped.u"
	if test "$libtool" = yes; then
	"$@" -Wc,-M
	else
	"$@" -M
	fi
	stat=$?

	if test -f "$tmpdepfile"; then :
	else
	stripped=`echo "$stripped" \| sed 's,^.*/,,'`
	tmpdepfile="$stripped.u"
	fi

	if test $stat -eq 0; then :
	else
	rm -f "$tmpdepfile"
	exit $stat
	fi

	if test -f "$tmpdepfile"; then
	outname="$stripped.o"
	# Each line is of the form `foo.o: dependent.h'.
	# Do two passes, one to just change these to
	# `$object: dependent.h' and one to simply `dependent.h:'.
	sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile"
	sed -e "s,^$outname: $.*$$,\1:," < "$tmpdepfile" >> "$depfile"
	else
	# The sourcefile does not contain any dependencies, so just
	# store a dummy comment line, to avoid errors with the Makefile
	# "include basename.Plo" scheme.
	echo "#dummy" > "$depfile"
	fi
	rm -f "$tmpdepfile"
	;;

	icc)
	# Intel's C compiler understands `-MD -MF file'. However on
	# icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
	# ICC 7.0 will fill foo.d with something like
	# foo.o: sub/foo.c
	# foo.o: sub/foo.h
	# which is wrong. We want:
	# sub/foo.o: sub/foo.c
	# sub/foo.o: sub/foo.h
	# sub/foo.c:
	# sub/foo.h:
	# ICC 7.1 will output
	# foo.o: sub/foo.c sub/foo.h
	# and will wrap long lines using \ :
	# foo.o: sub/foo.c ... \
	# sub/foo.h ... \
	# ...

	"$@" -MD -MF "$tmpdepfile"
	stat=$?
	if test $stat -eq 0; then :
	else
	rm -f "$tmpdepfile"
	exit $stat
	fi
	rm -f "$depfile"
	# Each line is of the form `foo.o: dependent.h',
	# or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
	# Do two passes, one to just change these to
	# `$object: dependent.h' and one to simply `dependent.h:'.
	sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
	# Some versions of the HPUX 10.20 sed can't process this invocation
	# correctly. Breaking it into two sed invocations is a workaround.
	sed 's,^[^:]: $.$$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \|
	sed -e 's/$/ :/' >> "$depfile"
	rm -f "$tmpdepfile"
	;;

	tru64)
	# The Tru64 compiler uses -MD to generate dependencies as a side
	# effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
	# At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
	# dependencies in `foo.d' instead, so we check for that too.
	# Subdirectories are respected.
	dir=`echo "$object" \| sed -e 's\|/[^/]*$\|/\|'`
	test "x$dir" = "x$object" && dir=
	base=`echo "$object" \| sed -e 's\|^.*/\|\|' -e 's/\.o$//' -e 's/\.lo$//'`

	if test "$libtool" = yes; then
	# Dependencies are output in .lo.d with libtool 1.4.
	# With libtool 1.5 they are output both in $dir.libs/$base.o.d
	# and in $dir.libs/$base.o.d and $dir$base.o.d. We process the
	# latter, because the former will be cleaned when $dir.libs is
	# erased.
	tmpdepfile1="$dir.libs/$base.lo.d"
	tmpdepfile2="$dir$base.o.d"
	tmpdepfile3="$dir.libs/$base.d"
	"$@" -Wc,-MD
	else
	tmpdepfile1="$dir$base.o.d"
	tmpdepfile2="$dir$base.d"
	tmpdepfile3="$dir$base.d"
	"$@" -MD
	fi

	stat=$?
	if test $stat -eq 0; then :
	else
	rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
	exit $stat
	fi

	if test -f "$tmpdepfile1"; then
	tmpdepfile="$tmpdepfile1"
	elif test -f "$tmpdepfile2"; then
	tmpdepfile="$tmpdepfile2"
	else
	tmpdepfile="$tmpdepfile3"
	fi
	if test -f "$tmpdepfile"; then
	sed -e "s,^.\.[a-z]:,$object:," < "$tmpdepfile" > "$depfile"
	# That's a tab and a space in the [].
	sed -e 's,^.\.[a-z]:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
	else
	echo "#dummy" > "$depfile"
	fi
	rm -f "$tmpdepfile"
	;;

	#nosideeffect)
	# This comment above is used by automake to tell side-effect
	# dependency tracking mechanisms from slower ones.

	dashmstdout)
	# Important note: in order to support this mode, a compiler must
	# always write the preprocessed file to stdout, regardless of -o.
	"$@" \|\| exit $?

	# Remove the call to Libtool.
	if test "$libtool" = yes; then
	while test $1 != '--mode=compile'; do
	shift
	done
	shift
	fi

	# Remove `-o $object'.
	IFS=" "
	for arg
	do
	case $arg in
	-o)
	shift
	;;
	$object)
	shift
	;;
	*)
	set fnord "$@" "$arg"
	shift # fnord
	shift # $arg
	;;
	esac
	done

	test -z "$dashmflag" && dashmflag=-M
	# Require at least two characters before searching for `:'
	# in the target name. This is to cope with DOS-style filenames:
	# a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
	"$@" $dashmflag \|
	sed 's:^[ ][^: ][^:][^:]\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
	rm -f "$depfile"
	cat < "$tmpdepfile" > "$depfile"
	tr ' ' '
	' < "$tmpdepfile" \| \
	## Some versions of the HPUX 10.20 sed can't process this invocation
	## correctly. Breaking it into two sed invocations is a workaround.
	sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \| sed -e 's/$/ :/' >> "$depfile"
	rm -f "$tmpdepfile"
	;;

	dashXmstdout)
	# This case only exists to satisfy depend.m4. It is never actually
	# run, as this mode is specially recognized in the preamble.
	exit 1
	;;

	makedepend)
	"$@" \|\| exit $?
	# Remove any Libtool call
	if test "$libtool" = yes; then
	while test $1 != '--mode=compile'; do
	shift
	done
	shift
	fi
	# X makedepend
	shift
	cleared=no
	for arg in "$@"; do
	case $cleared in
	no)
	set ""; shift
	cleared=yes ;;
	esac
	case "$arg" in
	-D\|-I)
	set fnord "$@" "$arg"; shift ;;
	# Strip any option that makedepend may not understand. Remove
	# the object too, otherwise makedepend will parse it as a source file.
	-*\|$object)
	;;
	*)
	set fnord "$@" "$arg"; shift ;;
	esac
	done
	obj_suffix="`echo $object \| sed 's/^.*\././'`"
	touch "$tmpdepfile"
	${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
	rm -f "$depfile"
	cat < "$tmpdepfile" > "$depfile"
	sed '1,2d' "$tmpdepfile" \| tr ' ' '
	' \| \
	## Some versions of the HPUX 10.20 sed can't process this invocation
	## correctly. Breaking it into two sed invocations is a workaround.
	sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \| sed -e 's/$/ :/' >> "$depfile"
	rm -f "$tmpdepfile" "$tmpdepfile".bak
	;;

	cpp)
	# Important note: in order to support this mode, a compiler must
	# always write the preprocessed file to stdout.
	"$@" \|\| exit $?

	# Remove the call to Libtool.
	if test "$libtool" = yes; then
	while test $1 != '--mode=compile'; do
	shift
	done
	shift
	fi

	# Remove `-o $object'.
	IFS=" "
	for arg
	do
	case $arg in
	-o)
	shift
	;;
	$object)
	shift
	;;
	*)
	set fnord "$@" "$arg"
	shift # fnord
	shift # $arg
	;;
	esac
	done

	"$@" -E \|
	sed -n '/^# [0-9][0-9]* "$[^"]$"./ s:: \1 \\:p' \|
	sed '$ s: \\$::' > "$tmpdepfile"
	rm -f "$depfile"
	echo "$object : \\" > "$depfile"
	cat < "$tmpdepfile" >> "$depfile"
	sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
	rm -f "$tmpdepfile"
	;;

	msvisualcpp)
	# Important note: in order to support this mode, a compiler must
	# always write the preprocessed file to stdout, regardless of -o,
	# because we must use -o when running libtool.
	"$@" \|\| exit $?
	IFS=" "
	for arg
	do
	case "$arg" in
	"-Gm"\|"/Gm"\|"-Gi"\|"/Gi"\|"-ZI"\|"/ZI")
	set fnord "$@"
	shift
	shift
	;;
	*)
	set fnord "$@" "$arg"
	shift
	shift
	;;
	esac
	done
	"$@" -E \|
	sed -n '/^#line [0-9][0-9]* "$[^"]*$"/ s::echo "`cygpath -u \\"\1\\"`":p' \| sort \| uniq > "$tmpdepfile"
	rm -f "$depfile"
	echo "$object : \\" > "$depfile"
	. "$tmpdepfile" \| sed 's% %\\ %g' \| sed -n '/^$.*$$/ s:: \1 \\:p' >> "$depfile"
	echo " " >> "$depfile"
	. "$tmpdepfile" \| sed 's% %\\ %g' \| sed -n '/^$.*$$/ s::\1\::p' >> "$depfile"
	rm -f "$tmpdepfile"
	;;

	none)
	exec "$@"
	;;

	*)
	echo "Unknown depmode $depmode" 1>&2
	exit 1
	;;
	esac

	exit 0

	# Local Variables:
	# mode: shell-script
	# sh-indentation: 2
	# eval: (add-hook 'write-file-hooks 'time-stamp)
	# time-stamp-start: "scriptversion="
	# time-stamp-format: "%:y-%02m-%02d.%02H"
	# time-stamp-end: "$"
	# End:

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