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#! /bin/sh

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# depcomp - compile a program generating dependencies as side-effects

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scriptversion=2006-10-15.18

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# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006 Free Software

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# Foundation, Inc.

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# This program is free software; you can redistribute it and/or modify

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# it under the terms of the GNU General Public License as published by

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# the Free Software Foundation; either version 2, or (at your option)

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# any later version.

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# This program is distributed in the hope that it will be useful,

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# but WITHOUT ANY WARRANTY; without even the implied warranty of

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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

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# GNU General Public License for more details.

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# You should have received a copy of the GNU General Public License

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# along with this program; if not, write to the Free Software

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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

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# 02110-1301, USA.

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# As a special exception to the GNU General Public License, if you

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# distribute this file as part of a program that contains a

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# configuration script generated by Autoconf, you may include it under

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# the same distribution terms that you use for the rest of that program.

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

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    31

case $1 in

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  '')

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     echo "$0: No command.  Try \`$0 --help' for more information." 1>&2

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     exit 1;

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     ;;

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  -h | --h*)

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    cat <<\EOF

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Usage: depcomp [--help] [--version] PROGRAM [ARGS]

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Run PROGRAMS ARGS to compile a file, generating dependencies

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as side-effects.

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Environment variables:

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  depmode     Dependency tracking mode.

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  source      Source file read by `PROGRAMS ARGS'.

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  object      Object file output by `PROGRAMS ARGS'.

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  DEPDIR      directory where to store dependencies.

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  depfile     Dependency file to output.

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  tmpdepfile  Temporary file to use when outputing dependencies.

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  libtool     Whether libtool is used (yes/no).

    51

    52

Report bugs to <bug-automake@gnu.org>.

    53

EOF

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    exit $?

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    ;;

    56

  -v | --v*)

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    echo "depcomp $scriptversion"

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    exit $?

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    ;;

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esac

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if test -z "$depmode" || test -z "$source" || test -z "$object"; then

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  echo "depcomp: Variables source, object and depmode must be set" 1>&2

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  exit 1

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fi

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# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.

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depfile=${depfile-`echo "$object" |

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  sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}

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tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}

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rm -f "$tmpdepfile"

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# Some modes work just like other modes, but use different flags.  We

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# parameterize here, but still list the modes in the big case below,

    76

# to make depend.m4 easier to write.  Note that we *cannot* use a case

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# here, because this file can only contain one case statement.

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if test "$depmode" = hp; then

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  # HP compiler uses -M and no extra arg.

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  gccflag=-M

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  depmode=gcc

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fi

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if test "$depmode" = dashXmstdout; then

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   # This is just like dashmstdout with a different argument.

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   dashmflag=-xM

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   depmode=dashmstdout

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fi

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    90

case "$depmode" in

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gcc3)

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## gcc 3 implements dependency tracking that does exactly what

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## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like

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## it if -MD -MP comes after the -MF stuff.  Hmm.

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## Unfortunately, FreeBSD c89 acceptance of flags depends upon

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## the command line argument order; so add the flags where they

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## appear in depend2.am.  Note that the slowdown incurred here

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## affects only configure: in makefiles, %FASTDEP% shortcuts this.

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  for arg

   100

  do

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    case $arg in

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    -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;

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    *)  set fnord "$@" "$arg" ;;

   104

    esac

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    shift # fnord

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    shift # $arg

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  done

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  "$@"

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  stat=$?

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  if test $stat -eq 0; then :

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  else

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    rm -f "$tmpdepfile"

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    exit $stat

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  fi

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  mv "$tmpdepfile" "$depfile"

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  ;;

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gcc)

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## There are various ways to get dependency output from gcc.  Here's

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## why we pick this rather obscure method:

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## - Don't want to use -MD because we'd like the dependencies to end

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##   up in a subdir.  Having to rename by hand is ugly.

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##   (We might end up doing this anyway to support other compilers.)

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## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like

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##   -MM, not -M (despite what the docs say).

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## - Using -M directly means running the compiler twice (even worse

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##   than renaming).

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  if test -z "$gccflag"; then

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    gccflag=-MD,

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  fi

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  "$@" -Wp,"$gccflag$tmpdepfile"

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  stat=$?

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  if test $stat -eq 0; then :

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  else

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    rm -f "$tmpdepfile"

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    exit $stat

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  fi

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  rm -f "$depfile"

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  echo "$object : \\" > "$depfile"

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  alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz

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## The second -e expression handles DOS-style file names with drive letters.

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  sed -e 's/^[^:]*: / /' \

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      -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"

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## This next piece of magic avoids the `deleted header file' problem.

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## The problem is that when a header file which appears in a .P file

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## is deleted, the dependency causes make to die (because there is

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## typically no way to rebuild the header).  We avoid this by adding

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## dummy dependencies for each header file.  Too bad gcc doesn't do

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## this for us directly.

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  tr ' ' '

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' < "$tmpdepfile" |

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## Some versions of gcc put a space before the `:'.  On the theory

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## that the space means something, we add a space to the output as

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## well.

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## Some versions of the HPUX 10.20 sed can't process this invocation

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## correctly.  Breaking it into two sed invocations is a workaround.

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    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"

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  rm -f "$tmpdepfile"

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  ;;

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hp)

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  # This case exists only to let depend.m4 do its work.  It works by

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  # looking at the text of this script.  This case will never be run,

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  # since it is checked for above.

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  exit 1

   166

  ;;

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sgi)

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  if test "$libtool" = yes; then

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    "$@" "-Wp,-MDupdate,$tmpdepfile"

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  else

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    "$@" -MDupdate "$tmpdepfile"

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  fi

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  stat=$?

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  if test $stat -eq 0; then :

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  else

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    rm -f "$tmpdepfile"

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    exit $stat

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  fi

   180

  rm -f "$depfile"

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  if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files

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    echo "$object : \\" > "$depfile"

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    # Clip off the initial element (the dependent).  Don't try to be

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    # clever and replace this with sed code, as IRIX sed won't handle

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    # lines with more than a fixed number of characters (4096 in

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    # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;

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    # the IRIX cc adds comments like `#:fec' to the end of the

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    # dependency line.

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    tr ' ' '

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' < "$tmpdepfile" \

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    | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \

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    tr '

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' ' ' >> $depfile

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    echo >> $depfile

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    # The second pass generates a dummy entry for each header file.

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    tr ' ' '

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' < "$tmpdepfile" \

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   | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \

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   >> $depfile

   203

  else

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    # The sourcefile does not contain any dependencies, so just

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    # store a dummy comment line, to avoid errors with the Makefile

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    # "include basename.Plo" scheme.

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    echo "#dummy" > "$depfile"

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  fi

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  rm -f "$tmpdepfile"

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  ;;

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aix)

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  # The C for AIX Compiler uses -M and outputs the dependencies

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  # in a .u file.  In older versions, this file always lives in the

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  # current directory.  Also, the AIX compiler puts `$object:' at the

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  # start of each line; $object doesn't have directory information.

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  # Version 6 uses the directory in both cases.

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  stripped=`echo "$object" | sed 's/\(.*\)\..*$/\1/'`

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  tmpdepfile="$stripped.u"

   220

  if test "$libtool" = yes; then

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    "$@" -Wc,-M

   222

  else

   223

    "$@" -M

   224

  fi

   225

  stat=$?

   226

   227

  if test -f "$tmpdepfile"; then :

   228

  else

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    stripped=`echo "$stripped" | sed 's,^.*/,,'`

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    tmpdepfile="$stripped.u"

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  fi

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  if test $stat -eq 0; then :

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  else

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    rm -f "$tmpdepfile"

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    exit $stat

   237

  fi

   238

   239

  if test -f "$tmpdepfile"; then

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    outname="$stripped.o"

   241

    # Each line is of the form `foo.o: dependent.h'.

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    # Do two passes, one to just change these to

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    # `$object: dependent.h' and one to simply `dependent.h:'.

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    sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile"

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    sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"

   246

  else

   247

    # The sourcefile does not contain any dependencies, so just

   248

    # store a dummy comment line, to avoid errors with the Makefile

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    # "include basename.Plo" scheme.

   250

    echo "#dummy" > "$depfile"

   251

  fi

   252

  rm -f "$tmpdepfile"

   253

  ;;

   254

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icc)

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  # Intel's C compiler understands `-MD -MF file'.  However on

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  #    icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c

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  # ICC 7.0 will fill foo.d with something like

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  #    foo.o: sub/foo.c

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  #    foo.o: sub/foo.h

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  # which is wrong.  We want:

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  #    sub/foo.o: sub/foo.c

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  #    sub/foo.o: sub/foo.h

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  #    sub/foo.c:

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  #    sub/foo.h:

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  # ICC 7.1 will output

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  #    foo.o: sub/foo.c sub/foo.h

   268

  # and will wrap long lines using \ :

   269

  #    foo.o: sub/foo.c ... \

   270

  #     sub/foo.h ... \

   271

  #     ...

   272

   273

  "$@" -MD -MF "$tmpdepfile"

   274

  stat=$?

   275

  if test $stat -eq 0; then :

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  else

   277

    rm -f "$tmpdepfile"

   278

    exit $stat

   279

  fi

   280

  rm -f "$depfile"

   281

  # Each line is of the form `foo.o: dependent.h',

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  # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.

   283

  # Do two passes, one to just change these to

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  # `$object: dependent.h' and one to simply `dependent.h:'.

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  sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"

   286

  # Some versions of the HPUX 10.20 sed can't process this invocation

   287

  # correctly.  Breaking it into two sed invocations is a workaround.

   288

  sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |

   289

    sed -e 's/$/ :/' >> "$depfile"

   290

  rm -f "$tmpdepfile"

   291

  ;;

   292

   293

hp2)

   294

  # The "hp" stanza above does not work with aCC (C++) and HP's ia64

   295

  # compilers, which have integrated preprocessors.  The correct option

   296

  # to use with these is +Maked; it writes dependencies to a file named

   297

  # 'foo.d', which lands next to the object file, wherever that

   298

  # happens to be.

   299

  # Much of this is similar to the tru64 case; see comments there.

   300

  dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`

   301

  test "x$dir" = "x$object" && dir=

   302

  base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`

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  if test "$libtool" = yes; then

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    tmpdepfile1=$dir$base.d

   305

    tmpdepfile2=$dir.libs/$base.d

   306

    "$@" -Wc,+Maked

   307

  else

   308

    tmpdepfile1=$dir$base.d

   309

    tmpdepfile2=$dir$base.d

   310

    "$@" +Maked

   311

  fi

   312

  stat=$?

   313

  if test $stat -eq 0; then :

   314

  else

   315

     rm -f "$tmpdepfile1" "$tmpdepfile2"

   316

     exit $stat

   317

  fi

   318

   319

  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"

   320

  do

   321

    test -f "$tmpdepfile" && break

   322

  done

   323

  if test -f "$tmpdepfile"; then

   324

    sed -e "s,^.*\.[a-z]*:,$object:," "$tmpdepfile" > "$depfile"

   325

    # Add `dependent.h:' lines.

   326

    sed -ne '2,${; s/^ *//; s/ \\*$//; s/$/:/; p;}' "$tmpdepfile" >> "$depfile"

   327

  else

   328

    echo "#dummy" > "$depfile"

   329

  fi

   330

  rm -f "$tmpdepfile" "$tmpdepfile2"

   331

  ;;

   332

   333

tru64)

   334

   # The Tru64 compiler uses -MD to generate dependencies as a side

   335

   # effect.  `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.

   336

   # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put

   337

   # dependencies in `foo.d' instead, so we check for that too.

   338

   # Subdirectories are respected.

   339

   dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`

   340

   test "x$dir" = "x$object" && dir=

   341

   base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`

   342

   343

   if test "$libtool" = yes; then

   344

      # With Tru64 cc, shared objects can also be used to make a

   345

      # static library.  This mechanism is used in libtool 1.4 series to

   346

      # handle both shared and static libraries in a single compilation.

   347

      # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.

   348

      #

   349

      # With libtool 1.5 this exception was removed, and libtool now

   350

      # generates 2 separate objects for the 2 libraries.  These two

   351

      # compilations output dependencies in $dir.libs/$base.o.d and

   352

      # in $dir$base.o.d.  We have to check for both files, because

   353

      # one of the two compilations can be disabled.  We should prefer

   354

      # $dir$base.o.d over $dir.libs/$base.o.d because the latter is

   355

      # automatically cleaned when .libs/ is deleted, while ignoring

   356

      # the former would cause a distcleancheck panic.

   357

      tmpdepfile1=$dir.libs/$base.lo.d   # libtool 1.4

   358

      tmpdepfile2=$dir$base.o.d          # libtool 1.5

   359

      tmpdepfile3=$dir.libs/$base.o.d    # libtool 1.5

   360

      tmpdepfile4=$dir.libs/$base.d      # Compaq CCC V6.2-504

   361

      "$@" -Wc,-MD

   362

   else

   363

      tmpdepfile1=$dir$base.o.d

   364

      tmpdepfile2=$dir$base.d

   365

      tmpdepfile3=$dir$base.d

   366

      tmpdepfile4=$dir$base.d

   367

      "$@" -MD

   368

   fi

   369

   370

   stat=$?

   371

   if test $stat -eq 0; then :

   372

   else

   373

      rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"

   374

      exit $stat

   375

   fi

   376

   377

   for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"

   378

   do

   379

     test -f "$tmpdepfile" && break

   380

   done

   381

   if test -f "$tmpdepfile"; then

   382

      sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"

   383

      # That's a tab and a space in the [].

   384

      sed -e 's,^.*\.[a-z]*:[	 ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"

   385

   else

   386

      echo "#dummy" > "$depfile"

   387

   fi

   388

   rm -f "$tmpdepfile"

   389

   ;;

   390

   391

#nosideeffect)

   392

  # This comment above is used by automake to tell side-effect

   393

  # dependency tracking mechanisms from slower ones.

   394

   395

dashmstdout)

   396

  # Important note: in order to support this mode, a compiler *must*

   397

  # always write the preprocessed file to stdout, regardless of -o.

   398

  "$@" || exit $?

   399

   400

  # Remove the call to Libtool.

   401

  if test "$libtool" = yes; then

   402

    while test $1 != '--mode=compile'; do

   403

      shift

   404

    done

   405

    shift

   406

  fi

   407

   408

  # Remove `-o $object'.

   409

  IFS=" "

   410

  for arg

   411

  do

   412

    case $arg in

   413

    -o)

   414

      shift

   415

      ;;

   416

    $object)

   417

      shift

   418

      ;;

   419

    *)

   420

      set fnord "$@" "$arg"

   421

      shift # fnord

   422

      shift # $arg

   423

      ;;

   424

    esac

   425

  done

   426

   427

  test -z "$dashmflag" && dashmflag=-M

   428

  # Require at least two characters before searching for `:'

   429

  # in the target name.  This is to cope with DOS-style filenames:

   430

  # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.

   431

  "$@" $dashmflag |

   432

    sed 's:^[  ]*[^: ][^:][^:]*\:[    ]*:'"$object"'\: :' > "$tmpdepfile"

   433

  rm -f "$depfile"

   434

  cat < "$tmpdepfile" > "$depfile"

   435

  tr ' ' '

   436

' < "$tmpdepfile" | \

   437

## Some versions of the HPUX 10.20 sed can't process this invocation

   438

## correctly.  Breaking it into two sed invocations is a workaround.

   439

    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"

   440

  rm -f "$tmpdepfile"

   441

  ;;

   442

   443

dashXmstdout)

   444

  # This case only exists to satisfy depend.m4.  It is never actually

   445

  # run, as this mode is specially recognized in the preamble.

   446

  exit 1

   447

  ;;

   448

   449

makedepend)

   450

  "$@" || exit $?

   451

  # Remove any Libtool call

   452

  if test "$libtool" = yes; then

   453

    while test $1 != '--mode=compile'; do

   454

      shift

   455

    done

   456

    shift

   457

  fi

   458

  # X makedepend

   459

  shift

   460

  cleared=no

   461

  for arg in "$@"; do

   462

    case $cleared in

   463

    no)

   464

      set ""; shift

   465

      cleared=yes ;;

   466

    esac

   467

    case "$arg" in

   468

    -D*|-I*)

   469

      set fnord "$@" "$arg"; shift ;;

   470

    # Strip any option that makedepend may not understand.  Remove

   471

    # the object too, otherwise makedepend will parse it as a source file.

   472

    -*|$object)

   473

      ;;

   474

    *)

   475

      set fnord "$@" "$arg"; shift ;;

   476

    esac

   477

  done

   478

  obj_suffix="`echo $object | sed 's/^.*\././'`"

   479

  touch "$tmpdepfile"

   480

  ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"

   481

  rm -f "$depfile"

   482

  cat < "$tmpdepfile" > "$depfile"

   483

  sed '1,2d' "$tmpdepfile" | tr ' ' '

   484

' | \

   485

## Some versions of the HPUX 10.20 sed can't process this invocation

   486

## correctly.  Breaking it into two sed invocations is a workaround.

   487

    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"

   488

  rm -f "$tmpdepfile" "$tmpdepfile".bak

   489

  ;;

   490

   491

cpp)

   492

  # Important note: in order to support this mode, a compiler *must*

   493

  # always write the preprocessed file to stdout.

   494

  "$@" || exit $?

   495

   496

  # Remove the call to Libtool.

   497

  if test "$libtool" = yes; then

   498

    while test $1 != '--mode=compile'; do

   499

      shift

   500

    done

   501

    shift

   502

  fi

   503

   504

  # Remove `-o $object'.

   505

  IFS=" "

   506

  for arg

   507

  do

   508

    case $arg in

   509

    -o)

   510

      shift

   511

      ;;

   512

    $object)

   513

      shift

   514

      ;;

   515

    *)

   516

      set fnord "$@" "$arg"

   517

      shift # fnord

   518

      shift # $arg

   519

      ;;

   520

    esac

   521

  done

   522

   523

  "$@" -E |

   524

    sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \

   525

       -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |

   526

    sed '$ s: \\$::' > "$tmpdepfile"

   527

  rm -f "$depfile"

   528

  echo "$object : \\" > "$depfile"

   529

  cat < "$tmpdepfile" >> "$depfile"