File: depcomp [ffi-1.9.0 Documentation]

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#! /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 <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/.(*)$/.T1/'`}

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

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