[thirdparty/gcc.git] / depcomp

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

scriptversion=2005-05-16.16

# Copyright (C) 1999, 2000, 2003, 2004, 2005 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., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, 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 $?
    ;;
  -v | --v*)
    echo "depcomp $scriptversion"
    exit $?
    ;;
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"
  ;;

ia64hp)
  # The "hp" stanza above does not work with HP's ia64 compilers,
  # which have integrated preprocessors.  The correct option to use
  # with these is +Maked; it writes dependencies to a file named
  # 'foo.d', which lands next to the object file, wherever that
  # happens to be.
  tmpdepfile=`echo "$object" | sed -e 's/\.o$/.d/'`
  "$@" +Maked
  stat=$?
  if test $stat -eq 0; then :
  else
     rm -f "$tmpdepfile"
     exit $stat
  fi
  rm -f "$depfile"

  # The object file name is correct already.
  cat "$tmpdepfile" > "$depfile"
  # Add `dependent.h:' lines.
  sed -ne '2,${; s/^ //; s/ \\*$//; s/$/:/; p; }' "$tmpdepfile" >> "$depfile"
  rm -f "$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
      # With Tru64 cc, shared objects can also be used to make a
      # static library.  This mecanism is used in libtool 1.4 series to
      # handle both shared and static libraries in a single compilation.
      # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
      #
      # With libtool 1.5 this exception was removed, and libtool now
      # generates 2 separate objects for the 2 libraries.  These two
      # compilations output dependencies in in $dir.libs/$base.o.d and
      # in $dir$base.o.d.  We have to check for both files, because
      # one of the two compilations can be disabled.  We should prefer
      # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
      # automatically cleaned when .libs/ is deleted, while ignoring
      # the former would cause a distcleancheck panic.
      tmpdepfile1=$dir.libs/$base.lo.d   # libtool 1.4
      tmpdepfile2=$dir$base.o.d          # libtool 1.5
      tmpdepfile3=$dir.libs/$base.o.d    # libtool 1.5
      tmpdepfile4=$dir.libs/$base.d      # Compaq CCC V6.2-504
      "$@" -Wc,-MD
   else
      tmpdepfile1=$dir$base.o.d
      tmpdepfile2=$dir$base.d
      tmpdepfile3=$dir$base.d
      tmpdepfile4=$dir$base.d
      "$@" -MD
   fi

   stat=$?
   if test $stat -eq 0; then :
   else
      rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
      exit $stat
   fi

   for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
   do
     test -f "$tmpdepfile" && break
   done
   if test -f "$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 -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
       -e '/^#line [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:
Commit	Line	Data
	1	#! /bin/sh
	2	# depcomp - compile a program generating dependencies as side-effects
	3
	4	scriptversion=2005-05-16.16
	5
	6	# Copyright (C) 1999, 2000, 2003, 2004, 2005 Free Software Foundation, Inc.
	7
	8	# This program is free software; you can redistribute it and/or modify
	9	# it under the terms of the GNU General Public License as published by
	10	# the Free Software Foundation; either version 2, or (at your option)
	11	# any later version.
	12
	13	# This program is distributed in the hope that it will be useful,
	14	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	# GNU General Public License for more details.
	17
	18	# You should have received a copy of the GNU General Public License
	19	# along with this program; if not, write to the Free Software
	20	# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
	21	# 02110-1301, USA.
	22
	23	# As a special exception to the GNU General Public License, if you
	24	# distribute this file as part of a program that contains a
	25	# configuration script generated by Autoconf, you may include it under
	26	# the same distribution terms that you use for the rest of that program.
	27
	28	# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
	29
	30	case $1 in
	31	'')
	32	echo "$0: No command. Try \`$0 --help' for more information." 1>&2
	33	exit 1;
	34	;;
	35	-h \| --h*)
	36	cat <<\EOF
	37	Usage: depcomp [--help] [--version] PROGRAM [ARGS]
	38
	39	Run PROGRAMS ARGS to compile a file, generating dependencies
	40	as side-effects.
	41
	42	Environment variables:
	43	depmode Dependency tracking mode.
	44	source Source file read by `PROGRAMS ARGS'.
	45	object Object file output by `PROGRAMS ARGS'.
	46	DEPDIR directory where to store dependencies.
	47	depfile Dependency file to output.
	48	tmpdepfile Temporary file to use when outputing dependencies.
	49	libtool Whether libtool is used (yes/no).
	50
	51	Report bugs to <bug-automake@gnu.org>.
	52	EOF
	53	exit $?
	54	;;
	55	-v \| --v*)
	56	echo "depcomp $scriptversion"
	57	exit $?
	58	;;
	59	esac
	60
	61	if test -z "$depmode" \|\| test -z "$source" \|\| test -z "$object"; then
	62	echo "depcomp: Variables source, object and depmode must be set" 1>&2
	63	exit 1
	64	fi
	65
	66	# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
	67	depfile=${depfile-`echo "$object" \|
	68	sed 's\|[^\\/]$\|'${DEPDIR-.deps}'/&\|;s\|\.\([^.]\)$\|.P\1\|;s\|Pobj$\|Po\|'`}
	69	tmpdepfile=${tmpdepfile-`echo "$depfile" \| sed 's/\.\([^.]*\)$/.T\1/'`}
	70
	71	rm -f "$tmpdepfile"
	72
	73	# Some modes work just like other modes, but use different flags. We
	74	# parameterize here, but still list the modes in the big case below,
	75	# to make depend.m4 easier to write. Note that we cannot use a case
	76	# here, because this file can only contain one case statement.
	77	if test "$depmode" = hp; then
	78	# HP compiler uses -M and no extra arg.
	79	gccflag=-M
	80	depmode=gcc
	81	fi
	82
	83	if test "$depmode" = dashXmstdout; then
	84	# This is just like dashmstdout with a different argument.
	85	dashmflag=-xM
	86	depmode=dashmstdout
	87	fi
	88
	89	case "$depmode" in
	90	gcc3)
	91	## gcc 3 implements dependency tracking that does exactly what
	92	## we want. Yay! Note: for some reason libtool 1.4 doesn't like
	93	## it if -MD -MP comes after the -MF stuff. Hmm.
	94	"$@" -MT "$object" -MD -MP -MF "$tmpdepfile"
	95	stat=$?
	96	if test $stat -eq 0; then :
	97	else
	98	rm -f "$tmpdepfile"
	99	exit $stat
	100	fi
	101	mv "$tmpdepfile" "$depfile"
	102	;;
	103
	104	gcc)
	105	## There are various ways to get dependency output from gcc. Here's
	106	## why we pick this rather obscure method:
	107	## - Don't want to use -MD because we'd like the dependencies to end
	108	## up in a subdir. Having to rename by hand is ugly.
	109	## (We might end up doing this anyway to support other compilers.)
	110	## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
	111	## -MM, not -M (despite what the docs say).
	112	## - Using -M directly means running the compiler twice (even worse
	113	## than renaming).
	114	if test -z "$gccflag"; then
	115	gccflag=-MD,
	116	fi
	117	"$@" -Wp,"$gccflag$tmpdepfile"
	118	stat=$?
	119	if test $stat -eq 0; then :
	120	else
	121	rm -f "$tmpdepfile"
	122	exit $stat
	123	fi
	124	rm -f "$depfile"
	125	echo "$object : \\" > "$depfile"
	126	alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
	127	## The second -e expression handles DOS-style file names with drive letters.
	128	sed -e 's/^[^:]*: / /' \
	129	-e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
	130	## This next piece of magic avoids the `deleted header file' problem.
	131	## The problem is that when a header file which appears in a .P file
	132	## is deleted, the dependency causes make to die (because there is
	133	## typically no way to rebuild the header). We avoid this by adding
	134	## dummy dependencies for each header file. Too bad gcc doesn't do
	135	## this for us directly.
	136	tr ' ' '
	137	' < "$tmpdepfile" \|
	138	## Some versions of gcc put a space before the `:'. On the theory
	139	## that the space means something, we add a space to the output as
	140	## well.
	141	## Some versions of the HPUX 10.20 sed can't process this invocation
	142	## correctly. Breaking it into two sed invocations is a workaround.
	143	sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \| sed -e 's/$/ :/' >> "$depfile"
	144	rm -f "$tmpdepfile"
	145	;;
	146
	147	hp)
	148	# This case exists only to let depend.m4 do its work. It works by
	149	# looking at the text of this script. This case will never be run,
	150	# since it is checked for above.
	151	exit 1
	152	;;
	153
	154	sgi)
	155	if test "$libtool" = yes; then
	156	"$@" "-Wp,-MDupdate,$tmpdepfile"
	157	else
	158	"$@" -MDupdate "$tmpdepfile"
	159	fi
	160	stat=$?
	161	if test $stat -eq 0; then :
	162	else
	163	rm -f "$tmpdepfile"
	164	exit $stat
	165	fi
	166	rm -f "$depfile"
	167
	168	if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
	169	echo "$object : \\" > "$depfile"
	170
	171	# Clip off the initial element (the dependent). Don't try to be
	172	# clever and replace this with sed code, as IRIX sed won't handle
	173	# lines with more than a fixed number of characters (4096 in
	174	# IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
	175	# the IRIX cc adds comments like `#:fec' to the end of the
	176	# dependency line.
	177	tr ' ' '
	178	' < "$tmpdepfile" \
	179	\| sed -e 's/^.\.o://' -e 's/#.$//' -e '/^$/ d' \| \
	180	tr '
	181	' ' ' >> $depfile
	182	echo >> $depfile
	183
	184	# The second pass generates a dummy entry for each header file.
	185	tr ' ' '
	186	' < "$tmpdepfile" \
	187	\| sed -e 's/^.\.o://' -e 's/#.$//' -e '/^$/ d' -e 's/$/:/' \
	188	>> $depfile
	189	else
	190	# The sourcefile does not contain any dependencies, so just
	191	# store a dummy comment line, to avoid errors with the Makefile
	192	# "include basename.Plo" scheme.
	193	echo "#dummy" > "$depfile"
	194	fi
	195	rm -f "$tmpdepfile"
	196	;;
	197
	198	aix)
	199	# The C for AIX Compiler uses -M and outputs the dependencies
	200	# in a .u file. In older versions, this file always lives in the
	201	# current directory. Also, the AIX compiler puts `$object:' at the
	202	# start of each line; $object doesn't have directory information.
	203	# Version 6 uses the directory in both cases.
	204	stripped=`echo "$object" \| sed 's/\(.\)\..$/\1/'`
	205	tmpdepfile="$stripped.u"
	206	if test "$libtool" = yes; then
	207	"$@" -Wc,-M
	208	else
	209	"$@" -M
	210	fi
	211	stat=$?
	212
	213	if test -f "$tmpdepfile"; then :
	214	else
	215	stripped=`echo "$stripped" \| sed 's,^.*/,,'`
	216	tmpdepfile="$stripped.u"
	217	fi
	218
	219	if test $stat -eq 0; then :
	220	else
	221	rm -f "$tmpdepfile"
	222	exit $stat
	223	fi
	224
	225	if test -f "$tmpdepfile"; then
	226	outname="$stripped.o"
	227	# Each line is of the form `foo.o: dependent.h'.
	228	# Do two passes, one to just change these to
	229	# `$object: dependent.h' and one to simply `dependent.h:'.
	230	sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile"
	231	sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
	232	else
	233	# The sourcefile does not contain any dependencies, so just
	234	# store a dummy comment line, to avoid errors with the Makefile
	235	# "include basename.Plo" scheme.
	236	echo "#dummy" > "$depfile"
	237	fi
	238	rm -f "$tmpdepfile"
	239	;;
	240
	241	icc)
	242	# Intel's C compiler understands `-MD -MF file'. However on
	243	# icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
	244	# ICC 7.0 will fill foo.d with something like
	245	# foo.o: sub/foo.c
	246	# foo.o: sub/foo.h
	247	# which is wrong. We want:
	248	# sub/foo.o: sub/foo.c
	249	# sub/foo.o: sub/foo.h
	250	# sub/foo.c:
	251	# sub/foo.h:
	252	# ICC 7.1 will output
	253	# foo.o: sub/foo.c sub/foo.h
	254	# and will wrap long lines using \ :
	255	# foo.o: sub/foo.c ... \
	256	# sub/foo.h ... \
	257	# ...
	258
	259	"$@" -MD -MF "$tmpdepfile"
	260	stat=$?
	261	if test $stat -eq 0; then :
	262	else
	263	rm -f "$tmpdepfile"
	264	exit $stat
	265	fi
	266	rm -f "$depfile"
	267	# Each line is of the form `foo.o: dependent.h',
	268	# or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
	269	# Do two passes, one to just change these to
	270	# `$object: dependent.h' and one to simply `dependent.h:'.
	271	sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
	272	# Some versions of the HPUX 10.20 sed can't process this invocation
	273	# correctly. Breaking it into two sed invocations is a workaround.
	274	sed 's,^[^:]: \(.\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \|
	275	sed -e 's/$/ :/' >> "$depfile"
	276	rm -f "$tmpdepfile"
	277	;;
	278
	279	ia64hp)
	280	# The "hp" stanza above does not work with HP's ia64 compilers,
	281	# which have integrated preprocessors. The correct option to use
	282	# with these is +Maked; it writes dependencies to a file named
	283	# 'foo.d', which lands next to the object file, wherever that
	284	# happens to be.
	285	tmpdepfile=`echo "$object" \| sed -e 's/\.o$/.d/'`
	286	"$@" +Maked
	287	stat=$?
	288	if test $stat -eq 0; then :
	289	else
	290	rm -f "$tmpdepfile"
	291	exit $stat
	292	fi
	293	rm -f "$depfile"
	294
	295	# The object file name is correct already.
	296	cat "$tmpdepfile" > "$depfile"
	297	# Add `dependent.h:' lines.
	298	sed -ne '2,${; s/^ //; s/ \\*$//; s/$/:/; p; }' "$tmpdepfile" >> "$depfile"
	299	rm -f "$tmpdepfile"
	300	;;
	301
	302	tru64)
	303	# The Tru64 compiler uses -MD to generate dependencies as a side
	304	# effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
	305	# At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
	306	# dependencies in `foo.d' instead, so we check for that too.
	307	# Subdirectories are respected.
	308	dir=`echo "$object" \| sed -e 's\|/[^/]*$\|/\|'`
	309	test "x$dir" = "x$object" && dir=
	310	base=`echo "$object" \| sed -e 's\|^.*/\|\|' -e 's/\.o$//' -e 's/\.lo$//'`
	311
	312	if test "$libtool" = yes; then
	313	# With Tru64 cc, shared objects can also be used to make a
	314	# static library. This mecanism is used in libtool 1.4 series to
	315	# handle both shared and static libraries in a single compilation.
	316	# With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
	317	#
	318	# With libtool 1.5 this exception was removed, and libtool now
	319	# generates 2 separate objects for the 2 libraries. These two
	320	# compilations output dependencies in in $dir.libs/$base.o.d and
	321	# in $dir$base.o.d. We have to check for both files, because
	322	# one of the two compilations can be disabled. We should prefer
	323	# $dir$base.o.d over $dir.libs/$base.o.d because the latter is
	324	# automatically cleaned when .libs/ is deleted, while ignoring
	325	# the former would cause a distcleancheck panic.
	326	tmpdepfile1=$dir.libs/$base.lo.d # libtool 1.4
	327	tmpdepfile2=$dir$base.o.d # libtool 1.5
	328	tmpdepfile3=$dir.libs/$base.o.d # libtool 1.5
	329	tmpdepfile4=$dir.libs/$base.d # Compaq CCC V6.2-504
	330	"$@" -Wc,-MD
	331	else
	332	tmpdepfile1=$dir$base.o.d
	333	tmpdepfile2=$dir$base.d
	334	tmpdepfile3=$dir$base.d
	335	tmpdepfile4=$dir$base.d
	336	"$@" -MD
	337	fi
	338
	339	stat=$?
	340	if test $stat -eq 0; then :
	341	else
	342	rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
	343	exit $stat
	344	fi
	345
	346	for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
	347	do
	348	test -f "$tmpdepfile" && break
	349	done
	350	if test -f "$tmpdepfile"; then
	351	sed -e "s,^.\.[a-z]:,$object:," < "$tmpdepfile" > "$depfile"
	352	# That's a tab and a space in the [].
	353	sed -e 's,^.\.[a-z]:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
	354	else
	355	echo "#dummy" > "$depfile"
	356	fi
	357	rm -f "$tmpdepfile"
	358	;;
	359
	360	#nosideeffect)
	361	# This comment above is used by automake to tell side-effect
	362	# dependency tracking mechanisms from slower ones.
	363
	364	dashmstdout)
	365	# Important note: in order to support this mode, a compiler must
	366	# always write the preprocessed file to stdout, regardless of -o.
	367	"$@" \|\| exit $?
	368
	369	# Remove the call to Libtool.
	370	if test "$libtool" = yes; then
	371	while test $1 != '--mode=compile'; do
	372	shift
	373	done
	374	shift
	375	fi
	376
	377	# Remove `-o $object'.
	378	IFS=" "
	379	for arg
	380	do
	381	case $arg in
	382	-o)
	383	shift
	384	;;
	385	$object)
	386	shift
	387	;;
	388	*)
	389	set fnord "$@" "$arg"
	390	shift # fnord
	391	shift # $arg
	392	;;
	393	esac
	394	done
	395
	396	test -z "$dashmflag" && dashmflag=-M
	397	# Require at least two characters before searching for `:'
	398	# in the target name. This is to cope with DOS-style filenames:
	399	# a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
	400	"$@" $dashmflag \|
	401	sed 's:^[ ][^: ][^:][^:]\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
	402	rm -f "$depfile"
	403	cat < "$tmpdepfile" > "$depfile"
	404	tr ' ' '
	405	' < "$tmpdepfile" \| \
	406	## Some versions of the HPUX 10.20 sed can't process this invocation
	407	## correctly. Breaking it into two sed invocations is a workaround.
	408	sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \| sed -e 's/$/ :/' >> "$depfile"
	409	rm -f "$tmpdepfile"
	410	;;
	411
	412	dashXmstdout)
	413	# This case only exists to satisfy depend.m4. It is never actually
	414	# run, as this mode is specially recognized in the preamble.
	415	exit 1
	416	;;
	417
	418	makedepend)
	419	"$@" \|\| exit $?
	420	# Remove any Libtool call
	421	if test "$libtool" = yes; then
	422	while test $1 != '--mode=compile'; do
	423	shift
	424	done
	425	shift
	426	fi
	427	# X makedepend
	428	shift
	429	cleared=no
	430	for arg in "$@"; do
	431	case $cleared in
	432	no)
	433	set ""; shift
	434	cleared=yes ;;
	435	esac
	436	case "$arg" in
	437	-D\|-I)
	438	set fnord "$@" "$arg"; shift ;;
	439	# Strip any option that makedepend may not understand. Remove
	440	# the object too, otherwise makedepend will parse it as a source file.
	441	-*\|$object)
	442	;;
	443	*)
	444	set fnord "$@" "$arg"; shift ;;
	445	esac
	446	done
	447	obj_suffix="`echo $object \| sed 's/^.*\././'`"
	448	touch "$tmpdepfile"
	449	${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
	450	rm -f "$depfile"
	451	cat < "$tmpdepfile" > "$depfile"
	452	sed '1,2d' "$tmpdepfile" \| tr ' ' '
	453	' \| \
	454	## Some versions of the HPUX 10.20 sed can't process this invocation
	455	## correctly. Breaking it into two sed invocations is a workaround.
	456	sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \| sed -e 's/$/ :/' >> "$depfile"
	457	rm -f "$tmpdepfile" "$tmpdepfile".bak
	458	;;
	459
	460	cpp)
	461	# Important note: in order to support this mode, a compiler must
	462	# always write the preprocessed file to stdout.
	463	"$@" \|\| exit $?
	464
	465	# Remove the call to Libtool.
	466	if test "$libtool" = yes; then
	467	while test $1 != '--mode=compile'; do
	468	shift
	469	done
	470	shift
	471	fi
	472
	473	# Remove `-o $object'.
	474	IFS=" "
	475	for arg
	476	do
	477	case $arg in
	478	-o)
	479	shift
	480	;;
	481	$object)
	482	shift
	483	;;
	484	*)
	485	set fnord "$@" "$arg"
	486	shift # fnord
	487	shift # $arg
	488	;;
	489	esac
	490	done
	491
	492	"$@" -E \|
	493	sed -n -e '/^# [0-9][0-9]* "\([^"]\)"./ s:: \1 \\:p' \
	494	-e '/^#line [0-9][0-9]* "\([^"]\)"./ s:: \1 \\:p' \|
	495	sed '$ s: \\$::' > "$tmpdepfile"
	496	rm -f "$depfile"
	497	echo "$object : \\" > "$depfile"
	498	cat < "$tmpdepfile" >> "$depfile"
	499	sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
	500	rm -f "$tmpdepfile"
	501	;;
	502
	503	msvisualcpp)
	504	# Important note: in order to support this mode, a compiler must
	505	# always write the preprocessed file to stdout, regardless of -o,
	506	# because we must use -o when running libtool.
	507	"$@" \|\| exit $?
	508	IFS=" "
	509	for arg
	510	do
	511	case "$arg" in
	512	"-Gm"\|"/Gm"\|"-Gi"\|"/Gi"\|"-ZI"\|"/ZI")
	513	set fnord "$@"
	514	shift
	515	shift
	516	;;
	517	*)
	518	set fnord "$@" "$arg"
	519	shift
	520	shift
	521	;;
	522	esac
	523	done
	524	"$@" -E \|
	525	sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' \| sort \| uniq > "$tmpdepfile"
	526	rm -f "$depfile"
	527	echo "$object : \\" > "$depfile"
	528	. "$tmpdepfile" \| sed 's% %\\ %g' \| sed -n '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile"
	529	echo " " >> "$depfile"
	530	. "$tmpdepfile" \| sed 's% %\\ %g' \| sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
	531	rm -f "$tmpdepfile"
	532	;;
	533
	534	none)
	535	exec "$@"
	536	;;
	537
	538	*)
	539	echo "Unknown depmode $depmode" 1>&2
	540	exit 1
	541	;;
	542	esac
	543
	544	exit 0
	545
	546	# Local Variables:
	547	# mode: shell-script
	548	# sh-indentation: 2
	549	# eval: (add-hook 'write-file-hooks 'time-stamp)
	550	# time-stamp-start: "scriptversion="
	551	# time-stamp-format: "%:y-%02m-%02d.%02H"
	552	# time-stamp-end: "$"
	553	# End: