github.com/llvm-mirror/llgo@v0.0.0-20190322182713-bf6f0a60fce1/third_party/gofrontend/depcomp (about)

     1  #! /bin/sh
     2  # depcomp - compile a program generating dependencies as side-effects
     3  
     4  scriptversion=2013-05-30.07; # UTC
     5  
     6  # Copyright (C) 1999-2014 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, see <http://www.gnu.org/licenses/>.
    20  
    21  # As a special exception to the GNU General Public License, if you
    22  # distribute this file as part of a program that contains a
    23  # configuration script generated by Autoconf, you may include it under
    24  # the same distribution terms that you use for the rest of that program.
    25  
    26  # Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
    27  
    28  case $1 in
    29    '')
    30      echo "$0: No command.  Try '$0 --help' for more information." 1>&2
    31      exit 1;
    32      ;;
    33    -h | --h*)
    34      cat <<\EOF
    35  Usage: depcomp [--help] [--version] PROGRAM [ARGS]
    36  
    37  Run PROGRAMS ARGS to compile a file, generating dependencies
    38  as side-effects.
    39  
    40  Environment variables:
    41    depmode     Dependency tracking mode.
    42    source      Source file read by 'PROGRAMS ARGS'.
    43    object      Object file output by 'PROGRAMS ARGS'.
    44    DEPDIR      directory where to store dependencies.
    45    depfile     Dependency file to output.
    46    tmpdepfile  Temporary file to use when outputting dependencies.
    47    libtool     Whether libtool is used (yes/no).
    48  
    49  Report bugs to <bug-automake@gnu.org>.
    50  EOF
    51      exit $?
    52      ;;
    53    -v | --v*)
    54      echo "depcomp $scriptversion"
    55      exit $?
    56      ;;
    57  esac
    58  
    59  # Get the directory component of the given path, and save it in the
    60  # global variables '$dir'.  Note that this directory component will
    61  # be either empty or ending with a '/' character.  This is deliberate.
    62  set_dir_from ()
    63  {
    64    case $1 in
    65      */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;;
    66        *) dir=;;
    67    esac
    68  }
    69  
    70  # Get the suffix-stripped basename of the given path, and save it the
    71  # global variable '$base'.
    72  set_base_from ()
    73  {
    74    base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'`
    75  }
    76  
    77  # If no dependency file was actually created by the compiler invocation,
    78  # we still have to create a dummy depfile, to avoid errors with the
    79  # Makefile "include basename.Plo" scheme.
    80  make_dummy_depfile ()
    81  {
    82    echo "#dummy" > "$depfile"
    83  }
    84  
    85  # Factor out some common post-processing of the generated depfile.
    86  # Requires the auxiliary global variable '$tmpdepfile' to be set.
    87  aix_post_process_depfile ()
    88  {
    89    # If the compiler actually managed to produce a dependency file,
    90    # post-process it.
    91    if test -f "$tmpdepfile"; then
    92      # Each line is of the form 'foo.o: dependency.h'.
    93      # Do two passes, one to just change these to
    94      #   $object: dependency.h
    95      # and one to simply output
    96      #   dependency.h:
    97      # which is needed to avoid the deleted-header problem.
    98      { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile"
    99        sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile"
   100      } > "$depfile"
   101      rm -f "$tmpdepfile"
   102    else
   103      make_dummy_depfile
   104    fi
   105  }
   106  
   107  # A tabulation character.
   108  tab='	'
   109  # A newline character.
   110  nl='
   111  '
   112  # Character ranges might be problematic outside the C locale.
   113  # These definitions help.
   114  upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ
   115  lower=abcdefghijklmnopqrstuvwxyz
   116  digits=0123456789
   117  alpha=${upper}${lower}
   118  
   119  if test -z "$depmode" || test -z "$source" || test -z "$object"; then
   120    echo "depcomp: Variables source, object and depmode must be set" 1>&2
   121    exit 1
   122  fi
   123  
   124  # Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
   125  depfile=${depfile-`echo "$object" |
   126    sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
   127  tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
   128  
   129  rm -f "$tmpdepfile"
   130  
   131  # Avoid interferences from the environment.
   132  gccflag= dashmflag=
   133  
   134  # Some modes work just like other modes, but use different flags.  We
   135  # parameterize here, but still list the modes in the big case below,
   136  # to make depend.m4 easier to write.  Note that we *cannot* use a case
   137  # here, because this file can only contain one case statement.
   138  if test "$depmode" = hp; then
   139    # HP compiler uses -M and no extra arg.
   140    gccflag=-M
   141    depmode=gcc
   142  fi
   143  
   144  if test "$depmode" = dashXmstdout; then
   145    # This is just like dashmstdout with a different argument.
   146    dashmflag=-xM
   147    depmode=dashmstdout
   148  fi
   149  
   150  cygpath_u="cygpath -u -f -"
   151  if test "$depmode" = msvcmsys; then
   152    # This is just like msvisualcpp but w/o cygpath translation.
   153    # Just convert the backslash-escaped backslashes to single forward
   154    # slashes to satisfy depend.m4
   155    cygpath_u='sed s,\\\\,/,g'
   156    depmode=msvisualcpp
   157  fi
   158  
   159  if test "$depmode" = msvc7msys; then
   160    # This is just like msvc7 but w/o cygpath translation.
   161    # Just convert the backslash-escaped backslashes to single forward
   162    # slashes to satisfy depend.m4
   163    cygpath_u='sed s,\\\\,/,g'
   164    depmode=msvc7
   165  fi
   166  
   167  if test "$depmode" = xlc; then
   168    # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information.
   169    gccflag=-qmakedep=gcc,-MF
   170    depmode=gcc
   171  fi
   172  
   173  case "$depmode" in
   174  gcc3)
   175  ## gcc 3 implements dependency tracking that does exactly what
   176  ## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
   177  ## it if -MD -MP comes after the -MF stuff.  Hmm.
   178  ## Unfortunately, FreeBSD c89 acceptance of flags depends upon
   179  ## the command line argument order; so add the flags where they
   180  ## appear in depend2.am.  Note that the slowdown incurred here
   181  ## affects only configure: in makefiles, %FASTDEP% shortcuts this.
   182    for arg
   183    do
   184      case $arg in
   185      -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
   186      *)  set fnord "$@" "$arg" ;;
   187      esac
   188      shift # fnord
   189      shift # $arg
   190    done
   191    "$@"
   192    stat=$?
   193    if test $stat -ne 0; then
   194      rm -f "$tmpdepfile"
   195      exit $stat
   196    fi
   197    mv "$tmpdepfile" "$depfile"
   198    ;;
   199  
   200  gcc)
   201  ## Note that this doesn't just cater to obsosete pre-3.x GCC compilers.
   202  ## but also to in-use compilers like IMB xlc/xlC and the HP C compiler.
   203  ## (see the conditional assignment to $gccflag above).
   204  ## There are various ways to get dependency output from gcc.  Here's
   205  ## why we pick this rather obscure method:
   206  ## - Don't want to use -MD because we'd like the dependencies to end
   207  ##   up in a subdir.  Having to rename by hand is ugly.
   208  ##   (We might end up doing this anyway to support other compilers.)
   209  ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
   210  ##   -MM, not -M (despite what the docs say).  Also, it might not be
   211  ##   supported by the other compilers which use the 'gcc' depmode.
   212  ## - Using -M directly means running the compiler twice (even worse
   213  ##   than renaming).
   214    if test -z "$gccflag"; then
   215      gccflag=-MD,
   216    fi
   217    "$@" -Wp,"$gccflag$tmpdepfile"
   218    stat=$?
   219    if test $stat -ne 0; then
   220      rm -f "$tmpdepfile"
   221      exit $stat
   222    fi
   223    rm -f "$depfile"
   224    echo "$object : \\" > "$depfile"
   225    # The second -e expression handles DOS-style file names with drive
   226    # letters.
   227    sed -e 's/^[^:]*: / /' \
   228        -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
   229  ## This next piece of magic avoids the "deleted header file" problem.
   230  ## The problem is that when a header file which appears in a .P file
   231  ## is deleted, the dependency causes make to die (because there is
   232  ## typically no way to rebuild the header).  We avoid this by adding
   233  ## dummy dependencies for each header file.  Too bad gcc doesn't do
   234  ## this for us directly.
   235  ## Some versions of gcc put a space before the ':'.  On the theory
   236  ## that the space means something, we add a space to the output as
   237  ## well.  hp depmode also adds that space, but also prefixes the VPATH
   238  ## to the object.  Take care to not repeat it in the output.
   239  ## Some versions of the HPUX 10.20 sed can't process this invocation
   240  ## correctly.  Breaking it into two sed invocations is a workaround.
   241    tr ' ' "$nl" < "$tmpdepfile" \
   242      | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \
   243      | sed -e 's/$/ :/' >> "$depfile"
   244    rm -f "$tmpdepfile"
   245    ;;
   246  
   247  hp)
   248    # This case exists only to let depend.m4 do its work.  It works by
   249    # looking at the text of this script.  This case will never be run,
   250    # since it is checked for above.
   251    exit 1
   252    ;;
   253  
   254  xlc)
   255    # This case exists only to let depend.m4 do its work.  It works by
   256    # looking at the text of this script.  This case will never be run,
   257    # since it is checked for above.
   258    exit 1
   259    ;;
   260  
   261  aix)
   262    # The C for AIX Compiler uses -M and outputs the dependencies
   263    # in a .u file.  In older versions, this file always lives in the
   264    # current directory.  Also, the AIX compiler puts '$object:' at the
   265    # start of each line; $object doesn't have directory information.
   266    # Version 6 uses the directory in both cases.
   267    set_dir_from "$object"
   268    set_base_from "$object"
   269    if test "$libtool" = yes; then
   270      tmpdepfile1=$dir$base.u
   271      tmpdepfile2=$base.u
   272      tmpdepfile3=$dir.libs/$base.u
   273      "$@" -Wc,-M
   274    else
   275      tmpdepfile1=$dir$base.u
   276      tmpdepfile2=$dir$base.u
   277      tmpdepfile3=$dir$base.u
   278      "$@" -M
   279    fi
   280    stat=$?
   281    if test $stat -ne 0; then
   282      rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
   283      exit $stat
   284    fi
   285  
   286    for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
   287    do
   288      test -f "$tmpdepfile" && break
   289    done
   290    aix_post_process_depfile
   291    ;;
   292  
   293  tcc)
   294    # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26
   295    # FIXME: That version still under development at the moment of writing.
   296    #        Make that this statement remains true also for stable, released
   297    #        versions.
   298    # It will wrap lines (doesn't matter whether long or short) with a
   299    # trailing '\', as in:
   300    #
   301    #   foo.o : \
   302    #    foo.c \
   303    #    foo.h \
   304    #
   305    # It will put a trailing '\' even on the last line, and will use leading
   306    # spaces rather than leading tabs (at least since its commit 0394caf7
   307    # "Emit spaces for -MD").
   308    "$@" -MD -MF "$tmpdepfile"
   309    stat=$?
   310    if test $stat -ne 0; then
   311      rm -f "$tmpdepfile"
   312      exit $stat
   313    fi
   314    rm -f "$depfile"
   315    # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'.
   316    # We have to change lines of the first kind to '$object: \'.
   317    sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile"
   318    # And for each line of the second kind, we have to emit a 'dep.h:'
   319    # dummy dependency, to avoid the deleted-header problem.
   320    sed -n -e 's|^  *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile"
   321    rm -f "$tmpdepfile"
   322    ;;
   323  
   324  ## The order of this option in the case statement is important, since the
   325  ## shell code in configure will try each of these formats in the order
   326  ## listed in this file.  A plain '-MD' option would be understood by many
   327  ## compilers, so we must ensure this comes after the gcc and icc options.
   328  pgcc)
   329    # Portland's C compiler understands '-MD'.
   330    # Will always output deps to 'file.d' where file is the root name of the
   331    # source file under compilation, even if file resides in a subdirectory.
   332    # The object file name does not affect the name of the '.d' file.
   333    # pgcc 10.2 will output
   334    #    foo.o: sub/foo.c sub/foo.h
   335    # and will wrap long lines using '\' :
   336    #    foo.o: sub/foo.c ... \
   337    #     sub/foo.h ... \
   338    #     ...
   339    set_dir_from "$object"
   340    # Use the source, not the object, to determine the base name, since
   341    # that's sadly what pgcc will do too.
   342    set_base_from "$source"
   343    tmpdepfile=$base.d
   344  
   345    # For projects that build the same source file twice into different object
   346    # files, the pgcc approach of using the *source* file root name can cause
   347    # problems in parallel builds.  Use a locking strategy to avoid stomping on
   348    # the same $tmpdepfile.
   349    lockdir=$base.d-lock
   350    trap "
   351      echo '$0: caught signal, cleaning up...' >&2
   352      rmdir '$lockdir'
   353      exit 1
   354    " 1 2 13 15
   355    numtries=100
   356    i=$numtries
   357    while test $i -gt 0; do
   358      # mkdir is a portable test-and-set.
   359      if mkdir "$lockdir" 2>/dev/null; then
   360        # This process acquired the lock.
   361        "$@" -MD
   362        stat=$?
   363        # Release the lock.
   364        rmdir "$lockdir"
   365        break
   366      else
   367        # If the lock is being held by a different process, wait
   368        # until the winning process is done or we timeout.
   369        while test -d "$lockdir" && test $i -gt 0; do
   370          sleep 1
   371          i=`expr $i - 1`
   372        done
   373      fi
   374      i=`expr $i - 1`
   375    done
   376    trap - 1 2 13 15
   377    if test $i -le 0; then
   378      echo "$0: failed to acquire lock after $numtries attempts" >&2
   379      echo "$0: check lockdir '$lockdir'" >&2
   380      exit 1
   381    fi
   382  
   383    if test $stat -ne 0; then
   384      rm -f "$tmpdepfile"
   385      exit $stat
   386    fi
   387    rm -f "$depfile"
   388    # Each line is of the form `foo.o: dependent.h',
   389    # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
   390    # Do two passes, one to just change these to
   391    # `$object: dependent.h' and one to simply `dependent.h:'.
   392    sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
   393    # Some versions of the HPUX 10.20 sed can't process this invocation
   394    # correctly.  Breaking it into two sed invocations is a workaround.
   395    sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \
   396      | sed -e 's/$/ :/' >> "$depfile"
   397    rm -f "$tmpdepfile"
   398    ;;
   399  
   400  hp2)
   401    # The "hp" stanza above does not work with aCC (C++) and HP's ia64
   402    # compilers, which have integrated preprocessors.  The correct option
   403    # to use with these is +Maked; it writes dependencies to a file named
   404    # 'foo.d', which lands next to the object file, wherever that
   405    # happens to be.
   406    # Much of this is similar to the tru64 case; see comments there.
   407    set_dir_from  "$object"
   408    set_base_from "$object"
   409    if test "$libtool" = yes; then
   410      tmpdepfile1=$dir$base.d
   411      tmpdepfile2=$dir.libs/$base.d
   412      "$@" -Wc,+Maked
   413    else
   414      tmpdepfile1=$dir$base.d
   415      tmpdepfile2=$dir$base.d
   416      "$@" +Maked
   417    fi
   418    stat=$?
   419    if test $stat -ne 0; then
   420       rm -f "$tmpdepfile1" "$tmpdepfile2"
   421       exit $stat
   422    fi
   423  
   424    for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
   425    do
   426      test -f "$tmpdepfile" && break
   427    done
   428    if test -f "$tmpdepfile"; then
   429      sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile"
   430      # Add 'dependent.h:' lines.
   431      sed -ne '2,${
   432                 s/^ *//
   433                 s/ \\*$//
   434                 s/$/:/
   435                 p
   436               }' "$tmpdepfile" >> "$depfile"
   437    else
   438      make_dummy_depfile
   439    fi
   440    rm -f "$tmpdepfile" "$tmpdepfile2"
   441    ;;
   442  
   443  tru64)
   444    # The Tru64 compiler uses -MD to generate dependencies as a side
   445    # effect.  'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'.
   446    # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
   447    # dependencies in 'foo.d' instead, so we check for that too.
   448    # Subdirectories are respected.
   449    set_dir_from  "$object"
   450    set_base_from "$object"
   451  
   452    if test "$libtool" = yes; then
   453      # Libtool generates 2 separate objects for the 2 libraries.  These
   454      # two compilations output dependencies in $dir.libs/$base.o.d and
   455      # in $dir$base.o.d.  We have to check for both files, because
   456      # one of the two compilations can be disabled.  We should prefer
   457      # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
   458      # automatically cleaned when .libs/ is deleted, while ignoring
   459      # the former would cause a distcleancheck panic.
   460      tmpdepfile1=$dir$base.o.d          # libtool 1.5
   461      tmpdepfile2=$dir.libs/$base.o.d    # Likewise.
   462      tmpdepfile3=$dir.libs/$base.d      # Compaq CCC V6.2-504
   463      "$@" -Wc,-MD
   464    else
   465      tmpdepfile1=$dir$base.d
   466      tmpdepfile2=$dir$base.d
   467      tmpdepfile3=$dir$base.d
   468      "$@" -MD
   469    fi
   470  
   471    stat=$?
   472    if test $stat -ne 0; then
   473      rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
   474      exit $stat
   475    fi
   476  
   477    for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
   478    do
   479      test -f "$tmpdepfile" && break
   480    done
   481    # Same post-processing that is required for AIX mode.
   482    aix_post_process_depfile
   483    ;;
   484  
   485  msvc7)
   486    if test "$libtool" = yes; then
   487      showIncludes=-Wc,-showIncludes
   488    else
   489      showIncludes=-showIncludes
   490    fi
   491    "$@" $showIncludes > "$tmpdepfile"
   492    stat=$?
   493    grep -v '^Note: including file: ' "$tmpdepfile"
   494    if test $stat -ne 0; then
   495      rm -f "$tmpdepfile"
   496      exit $stat
   497    fi
   498    rm -f "$depfile"
   499    echo "$object : \\" > "$depfile"
   500    # The first sed program below extracts the file names and escapes
   501    # backslashes for cygpath.  The second sed program outputs the file
   502    # name when reading, but also accumulates all include files in the
   503    # hold buffer in order to output them again at the end.  This only
   504    # works with sed implementations that can handle large buffers.
   505    sed < "$tmpdepfile" -n '
   506  /^Note: including file:  *\(.*\)/ {
   507    s//\1/
   508    s/\\/\\\\/g
   509    p
   510  }' | $cygpath_u | sort -u | sed -n '
   511  s/ /\\ /g
   512  s/\(.*\)/'"$tab"'\1 \\/p
   513  s/.\(.*\) \\/\1:/
   514  H
   515  $ {
   516    s/.*/'"$tab"'/
   517    G
   518    p
   519  }' >> "$depfile"
   520    echo >> "$depfile" # make sure the fragment doesn't end with a backslash
   521    rm -f "$tmpdepfile"
   522    ;;
   523  
   524  msvc7msys)
   525    # This case exists only to let depend.m4 do its work.  It works by
   526    # looking at the text of this script.  This case will never be run,
   527    # since it is checked for above.
   528    exit 1
   529    ;;
   530  
   531  #nosideeffect)
   532    # This comment above is used by automake to tell side-effect
   533    # dependency tracking mechanisms from slower ones.
   534  
   535  dashmstdout)
   536    # Important note: in order to support this mode, a compiler *must*
   537    # always write the preprocessed file to stdout, regardless of -o.
   538    "$@" || exit $?
   539  
   540    # Remove the call to Libtool.
   541    if test "$libtool" = yes; then
   542      while test "X$1" != 'X--mode=compile'; do
   543        shift
   544      done
   545      shift
   546    fi
   547  
   548    # Remove '-o $object'.
   549    IFS=" "
   550    for arg
   551    do
   552      case $arg in
   553      -o)
   554        shift
   555        ;;
   556      $object)
   557        shift
   558        ;;
   559      *)
   560        set fnord "$@" "$arg"
   561        shift # fnord
   562        shift # $arg
   563        ;;
   564      esac
   565    done
   566  
   567    test -z "$dashmflag" && dashmflag=-M
   568    # Require at least two characters before searching for ':'
   569    # in the target name.  This is to cope with DOS-style filenames:
   570    # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise.
   571    "$@" $dashmflag |
   572      sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile"
   573    rm -f "$depfile"
   574    cat < "$tmpdepfile" > "$depfile"
   575    # Some versions of the HPUX 10.20 sed can't process this sed invocation
   576    # correctly.  Breaking it into two sed invocations is a workaround.
   577    tr ' ' "$nl" < "$tmpdepfile" \
   578      | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
   579      | sed -e 's/$/ :/' >> "$depfile"
   580    rm -f "$tmpdepfile"
   581    ;;
   582  
   583  dashXmstdout)
   584    # This case only exists to satisfy depend.m4.  It is never actually
   585    # run, as this mode is specially recognized in the preamble.
   586    exit 1
   587    ;;
   588  
   589  makedepend)
   590    "$@" || exit $?
   591    # Remove any Libtool call
   592    if test "$libtool" = yes; then
   593      while test "X$1" != 'X--mode=compile'; do
   594        shift
   595      done
   596      shift
   597    fi
   598    # X makedepend
   599    shift
   600    cleared=no eat=no
   601    for arg
   602    do
   603      case $cleared in
   604      no)
   605        set ""; shift
   606        cleared=yes ;;
   607      esac
   608      if test $eat = yes; then
   609        eat=no
   610        continue
   611      fi
   612      case "$arg" in
   613      -D*|-I*)
   614        set fnord "$@" "$arg"; shift ;;
   615      # Strip any option that makedepend may not understand.  Remove
   616      # the object too, otherwise makedepend will parse it as a source file.
   617      -arch)
   618        eat=yes ;;
   619      -*|$object)
   620        ;;
   621      *)
   622        set fnord "$@" "$arg"; shift ;;
   623      esac
   624    done
   625    obj_suffix=`echo "$object" | sed 's/^.*\././'`
   626    touch "$tmpdepfile"
   627    ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
   628    rm -f "$depfile"
   629    # makedepend may prepend the VPATH from the source file name to the object.
   630    # No need to regex-escape $object, excess matching of '.' is harmless.
   631    sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile"
   632    # Some versions of the HPUX 10.20 sed can't process the last invocation
   633    # correctly.  Breaking it into two sed invocations is a workaround.
   634    sed '1,2d' "$tmpdepfile" \
   635      | tr ' ' "$nl" \
   636      | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
   637      | sed -e 's/$/ :/' >> "$depfile"
   638    rm -f "$tmpdepfile" "$tmpdepfile".bak
   639    ;;
   640  
   641  cpp)
   642    # Important note: in order to support this mode, a compiler *must*
   643    # always write the preprocessed file to stdout.
   644    "$@" || exit $?
   645  
   646    # Remove the call to Libtool.
   647    if test "$libtool" = yes; then
   648      while test "X$1" != 'X--mode=compile'; do
   649        shift
   650      done
   651      shift
   652    fi
   653  
   654    # Remove '-o $object'.
   655    IFS=" "
   656    for arg
   657    do
   658      case $arg in
   659      -o)
   660        shift
   661        ;;
   662      $object)
   663        shift
   664        ;;
   665      *)
   666        set fnord "$@" "$arg"
   667        shift # fnord
   668        shift # $arg
   669        ;;
   670      esac
   671    done
   672  
   673    "$@" -E \
   674      | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
   675               -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
   676      | sed '$ s: \\$::' > "$tmpdepfile"
   677    rm -f "$depfile"
   678    echo "$object : \\" > "$depfile"
   679    cat < "$tmpdepfile" >> "$depfile"
   680    sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
   681    rm -f "$tmpdepfile"
   682    ;;
   683  
   684  msvisualcpp)
   685    # Important note: in order to support this mode, a compiler *must*
   686    # always write the preprocessed file to stdout.
   687    "$@" || exit $?
   688  
   689    # Remove the call to Libtool.
   690    if test "$libtool" = yes; then
   691      while test "X$1" != 'X--mode=compile'; do
   692        shift
   693      done
   694      shift
   695    fi
   696  
   697    IFS=" "
   698    for arg
   699    do
   700      case "$arg" in
   701      -o)
   702        shift
   703        ;;
   704      $object)
   705        shift
   706        ;;
   707      "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
   708          set fnord "$@"
   709          shift
   710          shift
   711          ;;
   712      *)
   713          set fnord "$@" "$arg"
   714          shift
   715          shift
   716          ;;
   717      esac
   718    done
   719    "$@" -E 2>/dev/null |
   720    sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
   721    rm -f "$depfile"
   722    echo "$object : \\" > "$depfile"
   723    sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile"
   724    echo "$tab" >> "$depfile"
   725    sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
   726    rm -f "$tmpdepfile"
   727    ;;
   728  
   729  msvcmsys)
   730    # This case exists only to let depend.m4 do its work.  It works by
   731    # looking at the text of this script.  This case will never be run,
   732    # since it is checked for above.
   733    exit 1
   734    ;;
   735  
   736  none)
   737    exec "$@"
   738    ;;
   739  
   740  *)
   741    echo "Unknown depmode $depmode" 1>&2
   742    exit 1
   743    ;;
   744  esac
   745  
   746  exit 0
   747  
   748  # Local Variables:
   749  # mode: shell-script
   750  # sh-indentation: 2
   751  # eval: (add-hook 'write-file-hooks 'time-stamp)
   752  # time-stamp-start: "scriptversion="
   753  # time-stamp-format: "%:y-%02m-%02d.%02H"
   754  # time-stamp-time-zone: "UTC"
   755  # time-stamp-end: "; # UTC"
   756  # End: