src/png/depcomp

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

scriptversion=2009-04-28.21; # UTC

# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009 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, see <http://www.gnu.org/licenses/>.

# 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

cygpath_u="cygpath -u -f -"
if test "$depmode" = msvcmsys; then
   # This is just like msvisualcpp but w/o cygpath translation.
   # Just convert the backslash-escaped backslashes to single forward
   # slashes to satisfy depend.m4
   cygpath_u="sed s,\\\\\\\\,/,g"
   depmode=msvisualcpp
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.
## Unfortunately, FreeBSD c89 acceptance of flags depends upon
## the command line argument order; so add the flags where they
## appear in depend2.am.  Note that the slowdown incurred here
## affects only configure: in makefiles, %FASTDEP% shortcuts this.
  for arg
  do
    case $arg in
    -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
    *)  set fnord "$@" "$arg" ;;
    esac
    shift # fnord
    shift # $arg
  done
  "$@"
  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; $object doesn't have directory information.
  # Version 6 uses the directory in both cases.
  dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
  test "x$dir" = "x$object" && dir=
  base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
  if test "$libtool" = yes; then
    tmpdepfile1=$dir$base.u
    tmpdepfile2=$base.u
    tmpdepfile3=$dir.libs/$base.u
    "$@" -Wc,-M
  else
    tmpdepfile1=$dir$base.u
    tmpdepfile2=$dir$base.u
    tmpdepfile3=$dir$base.u
    "$@" -M
  fi
  stat=$?

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

  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
  do
    test -f "$tmpdepfile" && break
  done
  if test -f "$tmpdepfile"; then
    # Each line is of the form `foo.o: dependent.h'.
    # Do two passes, one to just change these to
    # `$object: dependent.h' and one to simply `dependent.h:'.
    sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
    # That's a tab and a space in the [].
    sed -e 's,^.*\.[a-z]*:[	 ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$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"
  ;;

hp2)
  # The "hp" stanza above does not work with aCC (C++) and 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.
  # Much of this is similar to the tru64 case; see comments there.
  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
    tmpdepfile1=$dir$base.d
    tmpdepfile2=$dir.libs/$base.d
    "$@" -Wc,+Maked
  else
    tmpdepfile1=$dir$base.d
    tmpdepfile2=$dir$base.d
    "$@" +Maked
  fi
  stat=$?
  if test $stat -eq 0; then :
  else
     rm -f "$tmpdepfile1" "$tmpdepfile2"
     exit $stat
  fi

  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
  do
    test -f "$tmpdepfile" && break
  done
  if test -f "$tmpdepfile"; then
    sed -e "s,^.*\.[a-z]*:,$object:," "$tmpdepfile" > "$depfile"
    # Add `dependent.h:' lines.
    sed -ne '2,${
	       s/^ *//
	       s/ \\*$//
	       s/$/:/
	       p
	     }' "$tmpdepfile" >> "$depfile"
  else
    echo "#dummy" > "$depfile"
  fi
  rm -f "$tmpdepfile" "$tmpdepfile2"
  ;;

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 mechanism 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 $dir.libs/$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 "X$1" != 'X--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 "X$1" != 'X--mode=compile'; do
      shift
    done
    shift
  fi
  # X makedepend
  shift
  cleared=no eat=no
  for arg
  do
    case $cleared in
    no)
      set ""; shift
      cleared=yes ;;
    esac
    if test $eat = yes; then
      eat=no
      continue
    fi
    case "$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.
    -arch)
      eat=yes ;;
    -*|$object)
      ;;
    *)
      set fnord "$@" "$arg"; shift ;;
    esac
  done
  obj_suffix=`echo "$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 "X$1" != 'X--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.
  "$@" || exit $?

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

  IFS=" "
  for arg
  do
    case "$arg" in
    -o)
      shift
      ;;
    $object)
      shift
      ;;
    "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
	set fnord "$@"
	shift
	shift
	;;
    *)
	set fnord "$@" "$arg"
	shift
	shift
	;;
    esac
  done
  "$@" -E 2>/dev/null |
  sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
  rm -f "$depfile"
  echo "$object : \\" > "$depfile"
  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::	\1 \\:p' >> "$depfile"
  echo "	" >> "$depfile"
  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
  rm -f "$tmpdepfile"
  ;;

msvcmsys)
  # 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
  ;;

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-time-zone: "UTC"
# time-stamp-end: "; # UTC"
# End:
Commit	Line	Data
	1	#! /bin/sh
	2	# depcomp - compile a program generating dependencies as side-effects
	3
	4	scriptversion=2009-04-28.21; # UTC
	5
	6	# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009 Free
	7	# Software Foundation, Inc.
	8
	9	# This program is free software; you can redistribute it and/or modify
	10	# it under the terms of the GNU General Public License as published by
	11	# the Free Software Foundation; either version 2, or (at your option)
	12	# any later version.
	13
	14	# This program is distributed in the hope that it will be useful,
	15	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	# GNU General Public License for more details.
	18
	19	# You should have received a copy of the GNU General Public License
	20	# along with this program. If not, see <http://www.gnu.org/licenses/>.
	21
	22	# As a special exception to the GNU General Public License, if you
	23	# distribute this file as part of a program that contains a
	24	# configuration script generated by Autoconf, you may include it under
	25	# the same distribution terms that you use for the rest of that program.
	26
	27	# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
	28
	29	case $1 in
	30	'')
	31	echo "$0: No command. Try \`$0 --help' for more information." 1>&2
	32	exit 1;
	33	;;
	34	-h \| --h*)
	35	cat <<\EOF
	36	Usage: depcomp [--help] [--version] PROGRAM [ARGS]
	37
	38	Run PROGRAMS ARGS to compile a file, generating dependencies
	39	as side-effects.
	40
	41	Environment variables:
	42	depmode Dependency tracking mode.
	43	source Source file read by `PROGRAMS ARGS'.
	44	object Object file output by `PROGRAMS ARGS'.
	45	DEPDIR directory where to store dependencies.
	46	depfile Dependency file to output.
	47	tmpdepfile Temporary file to use when outputing dependencies.
	48	libtool Whether libtool is used (yes/no).
	49
	50	Report bugs to <bug-automake@gnu.org>.
	51	EOF
	52	exit $?
	53	;;
	54	-v \| --v*)
	55	echo "depcomp $scriptversion"
	56	exit $?
	57	;;
	58	esac
	59
	60	if test -z "$depmode" \|\| test -z "$source" \|\| test -z "$object"; then
	61	echo "depcomp: Variables source, object and depmode must be set" 1>&2
	62	exit 1
	63	fi
	64
	65	# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
	66	depfile=${depfile-`echo "$object" \|
	67	sed 's\|[^\\/]$\|'${DEPDIR-.deps}'/&\|;s\|\.\([^.]\)$\|.P\1\|;s\|Pobj$\|Po\|'`}
	68	tmpdepfile=${tmpdepfile-`echo "$depfile" \| sed 's/\.\([^.]*\)$/.T\1/'`}
	69
	70	rm -f "$tmpdepfile"
	71
	72	# Some modes work just like other modes, but use different flags. We
	73	# parameterize here, but still list the modes in the big case below,
	74	# to make depend.m4 easier to write. Note that we cannot use a case
	75	# here, because this file can only contain one case statement.
	76	if test "$depmode" = hp; then
	77	# HP compiler uses -M and no extra arg.
	78	gccflag=-M
	79	depmode=gcc
	80	fi
	81
	82	if test "$depmode" = dashXmstdout; then
	83	# This is just like dashmstdout with a different argument.
	84	dashmflag=-xM
	85	depmode=dashmstdout
	86	fi
	87
	88	cygpath_u="cygpath -u -f -"
	89	if test "$depmode" = msvcmsys; then
	90	# This is just like msvisualcpp but w/o cygpath translation.
	91	# Just convert the backslash-escaped backslashes to single forward
	92	# slashes to satisfy depend.m4
	93	cygpath_u="sed s,\\\\\\\\,/,g"
	94	depmode=msvisualcpp
	95	fi
	96
	97	case "$depmode" in
	98	gcc3)
	99	## gcc 3 implements dependency tracking that does exactly what
	100	## we want. Yay! Note: for some reason libtool 1.4 doesn't like
	101	## it if -MD -MP comes after the -MF stuff. Hmm.
	102	## Unfortunately, FreeBSD c89 acceptance of flags depends upon
	103	## the command line argument order; so add the flags where they
	104	## appear in depend2.am. Note that the slowdown incurred here
	105	## affects only configure: in makefiles, %FASTDEP% shortcuts this.
	106	for arg
	107	do
	108	case $arg in
	109	-c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
	110	*) set fnord "$@" "$arg" ;;
	111	esac
	112	shift # fnord
	113	shift # $arg
	114	done
	115	"$@"
	116	stat=$?
	117	if test $stat -eq 0; then :
	118	else
	119	rm -f "$tmpdepfile"
	120	exit $stat
	121	fi
	122	mv "$tmpdepfile" "$depfile"
	123	;;
	124
	125	gcc)
	126	## There are various ways to get dependency output from gcc. Here's
	127	## why we pick this rather obscure method:
	128	## - Don't want to use -MD because we'd like the dependencies to end
	129	## up in a subdir. Having to rename by hand is ugly.
	130	## (We might end up doing this anyway to support other compilers.)
	131	## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
	132	## -MM, not -M (despite what the docs say).
	133	## - Using -M directly means running the compiler twice (even worse
	134	## than renaming).
	135	if test -z "$gccflag"; then
	136	gccflag=-MD,
	137	fi
	138	"$@" -Wp,"$gccflag$tmpdepfile"
	139	stat=$?
	140	if test $stat -eq 0; then :
	141	else
	142	rm -f "$tmpdepfile"
	143	exit $stat
	144	fi
	145	rm -f "$depfile"
	146	echo "$object : \\" > "$depfile"
	147	alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
	148	## The second -e expression handles DOS-style file names with drive letters.
	149	sed -e 's/^[^:]*: / /' \
	150	-e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
	151	## This next piece of magic avoids the `deleted header file' problem.
	152	## The problem is that when a header file which appears in a .P file
	153	## is deleted, the dependency causes make to die (because there is
	154	## typically no way to rebuild the header). We avoid this by adding
	155	## dummy dependencies for each header file. Too bad gcc doesn't do
	156	## this for us directly.
	157	tr ' ' '
	158	' < "$tmpdepfile" \|
	159	## Some versions of gcc put a space before the `:'. On the theory
	160	## that the space means something, we add a space to the output as
	161	## well.
	162	## Some versions of the HPUX 10.20 sed can't process this invocation
	163	## correctly. Breaking it into two sed invocations is a workaround.
	164	sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \| sed -e 's/$/ :/' >> "$depfile"
	165	rm -f "$tmpdepfile"
	166	;;
	167
	168	hp)
	169	# This case exists only to let depend.m4 do its work. It works by
	170	# looking at the text of this script. This case will never be run,
	171	# since it is checked for above.
	172	exit 1
	173	;;
	174
	175	sgi)
	176	if test "$libtool" = yes; then
	177	"$@" "-Wp,-MDupdate,$tmpdepfile"
	178	else
	179	"$@" -MDupdate "$tmpdepfile"
	180	fi
	181	stat=$?
	182	if test $stat -eq 0; then :
	183	else
	184	rm -f "$tmpdepfile"
	185	exit $stat
	186	fi
	187	rm -f "$depfile"
	188
	189	if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
	190	echo "$object : \\" > "$depfile"
	191
	192	# Clip off the initial element (the dependent). Don't try to be
	193	# clever and replace this with sed code, as IRIX sed won't handle
	194	# lines with more than a fixed number of characters (4096 in
	195	# IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
	196	# the IRIX cc adds comments like `#:fec' to the end of the
	197	# dependency line.
	198	tr ' ' '
	199	' < "$tmpdepfile" \
	200	\| sed -e 's/^.\.o://' -e 's/#.$//' -e '/^$/ d' \| \
	201	tr '
	202	' ' ' >> "$depfile"
	203	echo >> "$depfile"
	204
	205	# The second pass generates a dummy entry for each header file.
	206	tr ' ' '
	207	' < "$tmpdepfile" \
	208	\| sed -e 's/^.\.o://' -e 's/#.$//' -e '/^$/ d' -e 's/$/:/' \
	209	>> "$depfile"
	210	else
	211	# The sourcefile does not contain any dependencies, so just
	212	# store a dummy comment line, to avoid errors with the Makefile
	213	# "include basename.Plo" scheme.
	214	echo "#dummy" > "$depfile"
	215	fi
	216	rm -f "$tmpdepfile"
	217	;;
	218
	219	aix)
	220	# The C for AIX Compiler uses -M and outputs the dependencies
	221	# in a .u file. In older versions, this file always lives in the
	222	# current directory. Also, the AIX compiler puts `$object:' at the
	223	# start of each line; $object doesn't have directory information.
	224	# Version 6 uses the directory in both cases.
	225	dir=`echo "$object" \| sed -e 's\|/[^/]*$\|/\|'`
	226	test "x$dir" = "x$object" && dir=
	227	base=`echo "$object" \| sed -e 's\|^.*/\|\|' -e 's/\.o$//' -e 's/\.lo$//'`
	228	if test "$libtool" = yes; then
	229	tmpdepfile1=$dir$base.u
	230	tmpdepfile2=$base.u
	231	tmpdepfile3=$dir.libs/$base.u
	232	"$@" -Wc,-M
	233	else
	234	tmpdepfile1=$dir$base.u
	235	tmpdepfile2=$dir$base.u
	236	tmpdepfile3=$dir$base.u
	237	"$@" -M
	238	fi
	239	stat=$?
	240
	241	if test $stat -eq 0; then :
	242	else
	243	rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
	244	exit $stat
	245	fi
	246
	247	for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
	248	do
	249	test -f "$tmpdepfile" && break
	250	done
	251	if test -f "$tmpdepfile"; then
	252	# Each line is of the form `foo.o: dependent.h'.
	253	# Do two passes, one to just change these to
	254	# `$object: dependent.h' and one to simply `dependent.h:'.
	255	sed -e "s,^.\.[a-z]:,$object:," < "$tmpdepfile" > "$depfile"
	256	# That's a tab and a space in the [].
	257	sed -e 's,^.\.[a-z]:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
	258	else
	259	# The sourcefile does not contain any dependencies, so just
	260	# store a dummy comment line, to avoid errors with the Makefile
	261	# "include basename.Plo" scheme.
	262	echo "#dummy" > "$depfile"
	263	fi
	264	rm -f "$tmpdepfile"
	265	;;
	266
	267	icc)
	268	# Intel's C compiler understands `-MD -MF file'. However on
	269	# icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
	270	# ICC 7.0 will fill foo.d with something like
	271	# foo.o: sub/foo.c
	272	# foo.o: sub/foo.h
	273	# which is wrong. We want:
	274	# sub/foo.o: sub/foo.c
	275	# sub/foo.o: sub/foo.h
	276	# sub/foo.c:
	277	# sub/foo.h:
	278	# ICC 7.1 will output
	279	# foo.o: sub/foo.c sub/foo.h
	280	# and will wrap long lines using \ :
	281	# foo.o: sub/foo.c ... \
	282	# sub/foo.h ... \
	283	# ...
	284
	285	"$@" -MD -MF "$tmpdepfile"
	286	stat=$?
	287	if test $stat -eq 0; then :
	288	else
	289	rm -f "$tmpdepfile"
	290	exit $stat
	291	fi
	292	rm -f "$depfile"
	293	# Each line is of the form `foo.o: dependent.h',
	294	# or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
	295	# Do two passes, one to just change these to
	296	# `$object: dependent.h' and one to simply `dependent.h:'.
	297	sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
	298	# Some versions of the HPUX 10.20 sed can't process this invocation
	299	# correctly. Breaking it into two sed invocations is a workaround.
	300	sed 's,^[^:]: \(.\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \|
	301	sed -e 's/$/ :/' >> "$depfile"
	302	rm -f "$tmpdepfile"
	303	;;
	304
	305	hp2)
	306	# The "hp" stanza above does not work with aCC (C++) and HP's ia64
	307	# compilers, which have integrated preprocessors. The correct option
	308	# to use with these is +Maked; it writes dependencies to a file named
	309	# 'foo.d', which lands next to the object file, wherever that
	310	# happens to be.
	311	# Much of this is similar to the tru64 case; see comments there.
	312	dir=`echo "$object" \| sed -e 's\|/[^/]*$\|/\|'`
	313	test "x$dir" = "x$object" && dir=
	314	base=`echo "$object" \| sed -e 's\|^.*/\|\|' -e 's/\.o$//' -e 's/\.lo$//'`
	315	if test "$libtool" = yes; then
	316	tmpdepfile1=$dir$base.d
	317	tmpdepfile2=$dir.libs/$base.d
	318	"$@" -Wc,+Maked
	319	else
	320	tmpdepfile1=$dir$base.d
	321	tmpdepfile2=$dir$base.d
	322	"$@" +Maked
	323	fi
	324	stat=$?
	325	if test $stat -eq 0; then :
	326	else
	327	rm -f "$tmpdepfile1" "$tmpdepfile2"
	328	exit $stat
	329	fi
	330
	331	for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
	332	do
	333	test -f "$tmpdepfile" && break
	334	done
	335	if test -f "$tmpdepfile"; then
	336	sed -e "s,^.\.[a-z]:,$object:," "$tmpdepfile" > "$depfile"
	337	# Add `dependent.h:' lines.
	338	sed -ne '2,${
	339	s/^ *//
	340	s/ \\*$//
	341	s/$/:/
	342	p
	343	}' "$tmpdepfile" >> "$depfile"
	344	else
	345	echo "#dummy" > "$depfile"
	346	fi
	347	rm -f "$tmpdepfile" "$tmpdepfile2"
	348	;;
	349
	350	tru64)
	351	# The Tru64 compiler uses -MD to generate dependencies as a side
	352	# effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
	353	# At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
	354	# dependencies in `foo.d' instead, so we check for that too.
	355	# Subdirectories are respected.
	356	dir=`echo "$object" \| sed -e 's\|/[^/]*$\|/\|'`
	357	test "x$dir" = "x$object" && dir=
	358	base=`echo "$object" \| sed -e 's\|^.*/\|\|' -e 's/\.o$//' -e 's/\.lo$//'`
	359
	360	if test "$libtool" = yes; then
	361	# With Tru64 cc, shared objects can also be used to make a
	362	# static library. This mechanism is used in libtool 1.4 series to
	363	# handle both shared and static libraries in a single compilation.
	364	# With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
	365	#
	366	# With libtool 1.5 this exception was removed, and libtool now
	367	# generates 2 separate objects for the 2 libraries. These two
	368	# compilations output dependencies in $dir.libs/$base.o.d and
	369	# in $dir$base.o.d. We have to check for both files, because
	370	# one of the two compilations can be disabled. We should prefer
	371	# $dir$base.o.d over $dir.libs/$base.o.d because the latter is
	372	# automatically cleaned when .libs/ is deleted, while ignoring
	373	# the former would cause a distcleancheck panic.
	374	tmpdepfile1=$dir.libs/$base.lo.d # libtool 1.4
	375	tmpdepfile2=$dir$base.o.d # libtool 1.5
	376	tmpdepfile3=$dir.libs/$base.o.d # libtool 1.5
	377	tmpdepfile4=$dir.libs/$base.d # Compaq CCC V6.2-504
	378	"$@" -Wc,-MD
	379	else
	380	tmpdepfile1=$dir$base.o.d
	381	tmpdepfile2=$dir$base.d
	382	tmpdepfile3=$dir$base.d
	383	tmpdepfile4=$dir$base.d
	384	"$@" -MD
	385	fi
	386
	387	stat=$?
	388	if test $stat -eq 0; then :
	389	else
	390	rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
	391	exit $stat
	392	fi
	393
	394	for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
	395	do
	396	test -f "$tmpdepfile" && break
	397	done
	398	if test -f "$tmpdepfile"; then
	399	sed -e "s,^.\.[a-z]:,$object:," < "$tmpdepfile" > "$depfile"
	400	# That's a tab and a space in the [].
	401	sed -e 's,^.\.[a-z]:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
	402	else
	403	echo "#dummy" > "$depfile"
	404	fi
	405	rm -f "$tmpdepfile"
	406	;;
	407
	408	#nosideeffect)
	409	# This comment above is used by automake to tell side-effect
	410	# dependency tracking mechanisms from slower ones.
	411
	412	dashmstdout)
	413	# Important note: in order to support this mode, a compiler must
	414	# always write the preprocessed file to stdout, regardless of -o.
	415	"$@" \|\| exit $?
	416
	417	# Remove the call to Libtool.
	418	if test "$libtool" = yes; then
	419	while test "X$1" != 'X--mode=compile'; do
	420	shift
	421	done
	422	shift
	423	fi
	424
	425	# Remove `-o $object'.
	426	IFS=" "
	427	for arg
	428	do
	429	case $arg in
	430	-o)
	431	shift
	432	;;
	433	$object)
	434	shift
	435	;;
	436	*)
	437	set fnord "$@" "$arg"
	438	shift # fnord
	439	shift # $arg
	440	;;
	441	esac
	442	done
	443
	444	test -z "$dashmflag" && dashmflag=-M
	445	# Require at least two characters before searching for `:'
	446	# in the target name. This is to cope with DOS-style filenames:
	447	# a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
	448	"$@" $dashmflag \|
	449	sed 's:^[ ][^: ][^:][^:]\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
	450	rm -f "$depfile"
	451	cat < "$tmpdepfile" > "$depfile"
	452	tr ' ' '
	453	' < "$tmpdepfile" \| \
	454	## Some versions of the HPUX 10.20 sed can't process this invocation
	455	## correctly. Breaking it into two sed invocations is a workaround.
	456	sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \| sed -e 's/$/ :/' >> "$depfile"
	457	rm -f "$tmpdepfile"
	458	;;
	459
	460	dashXmstdout)
	461	# This case only exists to satisfy depend.m4. It is never actually
	462	# run, as this mode is specially recognized in the preamble.
	463	exit 1
	464	;;
	465
	466	makedepend)
	467	"$@" \|\| exit $?
	468	# Remove any Libtool call
	469	if test "$libtool" = yes; then
	470	while test "X$1" != 'X--mode=compile'; do
	471	shift
	472	done
	473	shift
	474	fi
	475	# X makedepend
	476	shift
	477	cleared=no eat=no
	478	for arg
	479	do
	480	case $cleared in
	481	no)
	482	set ""; shift
	483	cleared=yes ;;
	484	esac
	485	if test $eat = yes; then
	486	eat=no
	487	continue
	488	fi
	489	case "$arg" in
	490	-D\|-I)
	491	set fnord "$@" "$arg"; shift ;;
	492	# Strip any option that makedepend may not understand. Remove
	493	# the object too, otherwise makedepend will parse it as a source file.
	494	-arch)
	495	eat=yes ;;
	496	-*\|$object)
	497	;;
	498	*)
	499	set fnord "$@" "$arg"; shift ;;
	500	esac
	501	done
	502	obj_suffix=`echo "$object" \| sed 's/^.*\././'`
	503	touch "$tmpdepfile"
	504	${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
	505	rm -f "$depfile"
	506	cat < "$tmpdepfile" > "$depfile"
	507	sed '1,2d' "$tmpdepfile" \| tr ' ' '
	508	' \| \
	509	## Some versions of the HPUX 10.20 sed can't process this invocation
	510	## correctly. Breaking it into two sed invocations is a workaround.
	511	sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \| sed -e 's/$/ :/' >> "$depfile"
	512	rm -f "$tmpdepfile" "$tmpdepfile".bak
	513	;;
	514
	515	cpp)
	516	# Important note: in order to support this mode, a compiler must
	517	# always write the preprocessed file to stdout.
	518	"$@" \|\| exit $?
	519
	520	# Remove the call to Libtool.
	521	if test "$libtool" = yes; then
	522	while test "X$1" != 'X--mode=compile'; do
	523	shift
	524	done
	525	shift
	526	fi
	527
	528	# Remove `-o $object'.
	529	IFS=" "
	530	for arg
	531	do
	532	case $arg in
	533	-o)
	534	shift
	535	;;
	536	$object)
	537	shift
	538	;;
	539	*)
	540	set fnord "$@" "$arg"
	541	shift # fnord
	542	shift # $arg
	543	;;
	544	esac
	545	done
	546
	547	"$@" -E \|
	548	sed -n -e '/^# [0-9][0-9]* "\([^"]\)"./ s:: \1 \\:p' \
	549	-e '/^#line [0-9][0-9]* "\([^"]\)"./ s:: \1 \\:p' \|
	550	sed '$ s: \\$::' > "$tmpdepfile"
	551	rm -f "$depfile"
	552	echo "$object : \\" > "$depfile"
	553	cat < "$tmpdepfile" >> "$depfile"
	554	sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
	555	rm -f "$tmpdepfile"
	556	;;
	557
	558	msvisualcpp)
	559	# Important note: in order to support this mode, a compiler must
	560	# always write the preprocessed file to stdout.
	561	"$@" \|\| exit $?
	562
	563	# Remove the call to Libtool.
	564	if test "$libtool" = yes; then
	565	while test "X$1" != 'X--mode=compile'; do
	566	shift
	567	done
	568	shift
	569	fi
	570
	571	IFS=" "
	572	for arg
	573	do
	574	case "$arg" in
	575	-o)
	576	shift
	577	;;
	578	$object)
	579	shift
	580	;;
	581	"-Gm"\|"/Gm"\|"-Gi"\|"/Gi"\|"-ZI"\|"/ZI")
	582	set fnord "$@"
	583	shift
	584	shift
	585	;;
	586	*)
	587	set fnord "$@" "$arg"
	588	shift
	589	shift
	590	;;
	591	esac
	592	done
	593	"$@" -E 2>/dev/null \|
	594	sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' \| $cygpath_u \| sort -u > "$tmpdepfile"
	595	rm -f "$depfile"
	596	echo "$object : \\" > "$depfile"
	597	sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile"
	598	echo " " >> "$depfile"
	599	sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
	600	rm -f "$tmpdepfile"
	601	;;
	602
	603	msvcmsys)
	604	# This case exists only to let depend.m4 do its work. It works by
	605	# looking at the text of this script. This case will never be run,
	606	# since it is checked for above.
	607	exit 1
	608	;;
	609
	610	none)
	611	exec "$@"
	612	;;
	613
	614	*)
	615	echo "Unknown depmode $depmode" 1>&2
	616	exit 1
	617	;;
	618	esac
	619
	620	exit 0
	621
	622	# Local Variables:
	623	# mode: shell-script
	624	# sh-indentation: 2
	625	# eval: (add-hook 'write-file-hooks 'time-stamp)
	626	# time-stamp-start: "scriptversion="
	627	# time-stamp-format: "%:y-%02m-%02d.%02H"
	628	# time-stamp-time-zone: "UTC"
	629	# time-stamp-end: "; # UTC"
	630	# End: