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    1 #! /bin/sh
    2 # depcomp - compile a program generating dependencies as side-effects
    3 
    4 scriptversion=2004-05-31.23
    5 
    6 # Copyright (C) 1999, 2000, 2003, 2004 Free Software Foundation, Inc.
    7 
    8 # This program is free software; you can redistribute it and/or modify
    9 # it under the terms of the GNU General Public License as published by
   10 # the Free Software Foundation; either version 2, or (at your option)
   11 # any later version.
   12 
   13 # This program is distributed in the hope that it will be useful,
   14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
   15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   16 # GNU General Public License for more details.
   17 
   18 # You should have received a copy of the GNU General Public License
   19 # along with this program; if not, write to the Free Software
   20 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
   21 # 02111-1307, USA.
   22 
   23 # As a special exception to the GNU General Public License, if you
   24 # distribute this file as part of a program that contains a
   25 # configuration script generated by Autoconf, you may include it under
   26 # the same distribution terms that you use for the rest of that program.
   27 
   28 # Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
   29 
   30 case $1 in
   31   '')
   32      echo "$0: No command.  Try \`$0 --help' for more information." 1>&2
   33      exit 1;
   34      ;;
   35   -h | --h*)
   36     cat <<\EOF
   37 Usage: depcomp [--help] [--version] PROGRAM [ARGS]
   38 
   39 Run PROGRAMS ARGS to compile a file, generating dependencies
   40 as side-effects.
   41 
   42 Environment variables:
   43   depmode     Dependency tracking mode.
   44   source      Source file read by `PROGRAMS ARGS'.
   45   object      Object file output by `PROGRAMS ARGS'.
   46   DEPDIR      directory where to store dependencies.
   47   depfile     Dependency file to output.
   48   tmpdepfile  Temporary file to use when outputing dependencies.
   49   libtool     Whether libtool is used (yes/no).
   50 
   51 Report bugs to <bug-automake@gnu.org>.
   52 EOF
   53     exit 0
   54     ;;
   55   -v | --v*)
   56     echo "depcomp $scriptversion"
   57     exit 0
   58     ;;
   59 esac
   60 
   61 if test -z "$depmode" || test -z "$source" || test -z "$object"; then
   62   echo "depcomp: Variables source, object and depmode must be set" 1>&2
   63   exit 1
   64 fi
   65 
   66 # Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
   67 depfile=${depfile-`echo "$object" |
   68   sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
   69 tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
   70 
   71 rm -f "$tmpdepfile"
   72 
   73 # Some modes work just like other modes, but use different flags.  We
   74 # parameterize here, but still list the modes in the big case below,
   75 # to make depend.m4 easier to write.  Note that we *cannot* use a case
   76 # here, because this file can only contain one case statement.
   77 if test "$depmode" = hp; then
   78   # HP compiler uses -M and no extra arg.
   79   gccflag=-M
   80   depmode=gcc
   81 fi
   82 
   83 if test "$depmode" = dashXmstdout; then
   84    # This is just like dashmstdout with a different argument.
   85    dashmflag=-xM
   86    depmode=dashmstdout
   87 fi
   88 
   89 case "$depmode" in
   90 gcc3)
   91 ## gcc 3 implements dependency tracking that does exactly what
   92 ## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
   93 ## it if -MD -MP comes after the -MF stuff.  Hmm.
   94   "$@" -MT "$object" -MD -MP -MF "$tmpdepfile"
   95   stat=$?
   96   if test $stat -eq 0; then :
   97   else
   98     rm -f "$tmpdepfile"
   99     exit $stat
  100   fi
  101   mv "$tmpdepfile" "$depfile"
  102   ;;
  103 
  104 gcc)
  105 ## There are various ways to get dependency output from gcc.  Here's
  106 ## why we pick this rather obscure method:
  107 ## - Don't want to use -MD because we'd like the dependencies to end
  108 ##   up in a subdir.  Having to rename by hand is ugly.
  109 ##   (We might end up doing this anyway to support other compilers.)
  110 ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
  111 ##   -MM, not -M (despite what the docs say).
  112 ## - Using -M directly means running the compiler twice (even worse
  113 ##   than renaming).
  114   if test -z "$gccflag"; then
  115     gccflag=-MD,
  116   fi
  117   "$@" -Wp,"$gccflag$tmpdepfile"
  118   stat=$?
  119   if test $stat -eq 0; then :
  120   else
  121     rm -f "$tmpdepfile"
  122     exit $stat
  123   fi
  124   rm -f "$depfile"
  125   echo "$object : \\" > "$depfile"
  126   alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
  127 ## The second -e expression handles DOS-style file names with drive letters.
  128   sed -e 's/^[^:]*: / /' \
  129       -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
  130 ## This next piece of magic avoids the `deleted header file' problem.
  131 ## The problem is that when a header file which appears in a .P file
  132 ## is deleted, the dependency causes make to die (because there is
  133 ## typically no way to rebuild the header).  We avoid this by adding
  134 ## dummy dependencies for each header file.  Too bad gcc doesn't do
  135 ## this for us directly.
  136   tr ' ' '
  137 ' < "$tmpdepfile" |
  138 ## Some versions of gcc put a space before the `:'.  On the theory
  139 ## that the space means something, we add a space to the output as
  140 ## well.
  141 ## Some versions of the HPUX 10.20 sed can't process this invocation
  142 ## correctly.  Breaking it into two sed invocations is a workaround.
  143     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
  144   rm -f "$tmpdepfile"
  145   ;;
  146 
  147 hp)
  148   # This case exists only to let depend.m4 do its work.  It works by
  149   # looking at the text of this script.  This case will never be run,
  150   # since it is checked for above.
  151   exit 1
  152   ;;
  153 
  154 sgi)
  155   if test "$libtool" = yes; then
  156     "$@" "-Wp,-MDupdate,$tmpdepfile"
  157   else
  158     "$@" -MDupdate "$tmpdepfile"
  159   fi
  160   stat=$?
  161   if test $stat -eq 0; then :
  162   else
  163     rm -f "$tmpdepfile"
  164     exit $stat
  165   fi
  166   rm -f "$depfile"
  167 
  168   if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
  169     echo "$object : \\" > "$depfile"
  170 
  171     # Clip off the initial element (the dependent).  Don't try to be
  172     # clever and replace this with sed code, as IRIX sed won't handle
  173     # lines with more than a fixed number of characters (4096 in
  174     # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
  175     # the IRIX cc adds comments like `#:fec' to the end of the
  176     # dependency line.
  177     tr ' ' '
  178 ' < "$tmpdepfile" \
  179     | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
  180     tr '
  181 ' ' ' >> $depfile
  182     echo >> $depfile
  183 
  184     # The second pass generates a dummy entry for each header file.
  185     tr ' ' '
  186 ' < "$tmpdepfile" \
  187    | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
  188    >> $depfile
  189   else
  190     # The sourcefile does not contain any dependencies, so just
  191     # store a dummy comment line, to avoid errors with the Makefile
  192     # "include basename.Plo" scheme.
  193     echo "#dummy" > "$depfile"
  194   fi
  195   rm -f "$tmpdepfile"
  196   ;;
  197 
  198 aix)
  199   # The C for AIX Compiler uses -M and outputs the dependencies
  200   # in a .u file.  In older versions, this file always lives in the
  201   # current directory.  Also, the AIX compiler puts `$object:' at the
  202   # start of each line; $object doesn't have directory information.
  203   # Version 6 uses the directory in both cases.
  204   stripped=`echo "$object" | sed 's/\(.*\)\..*$/\1/'`
  205   tmpdepfile="$stripped.u"
  206   if test "$libtool" = yes; then
  207     "$@" -Wc,-M
  208   else
  209     "$@" -M
  210   fi
  211   stat=$?
  212 
  213   if test -f "$tmpdepfile"; then :
  214   else
  215     stripped=`echo "$stripped" | sed 's,^.*/,,'`
  216     tmpdepfile="$stripped.u"
  217   fi
  218 
  219   if test $stat -eq 0; then :
  220   else
  221     rm -f "$tmpdepfile"
  222     exit $stat
  223   fi
  224 
  225   if test -f "$tmpdepfile"; then
  226     outname="$stripped.o"
  227     # Each line is of the form `foo.o: dependent.h'.
  228     # Do two passes, one to just change these to
  229     # `$object: dependent.h' and one to simply `dependent.h:'.
  230     sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile"
  231     sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
  232   else
  233     # The sourcefile does not contain any dependencies, so just
  234     # store a dummy comment line, to avoid errors with the Makefile
  235     # "include basename.Plo" scheme.
  236     echo "#dummy" > "$depfile"
  237   fi
  238   rm -f "$tmpdepfile"
  239   ;;
  240 
  241 icc)
  242   # Intel's C compiler understands `-MD -MF file'.  However on
  243   #    icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
  244   # ICC 7.0 will fill foo.d with something like
  245   #    foo.o: sub/foo.c
  246   #    foo.o: sub/foo.h
  247   # which is wrong.  We want:
  248   #    sub/foo.o: sub/foo.c
  249   #    sub/foo.o: sub/foo.h
  250   #    sub/foo.c:
  251   #    sub/foo.h:
  252   # ICC 7.1 will output
  253   #    foo.o: sub/foo.c sub/foo.h
  254   # and will wrap long lines using \ :
  255   #    foo.o: sub/foo.c ... \
  256   #     sub/foo.h ... \
  257   #     ...
  258 
  259   "$@" -MD -MF "$tmpdepfile"
  260   stat=$?
  261   if test $stat -eq 0; then :
  262   else
  263     rm -f "$tmpdepfile"
  264     exit $stat
  265   fi
  266   rm -f "$depfile"
  267   # Each line is of the form `foo.o: dependent.h',
  268   # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
  269   # Do two passes, one to just change these to
  270   # `$object: dependent.h' and one to simply `dependent.h:'.
  271   sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
  272   # Some versions of the HPUX 10.20 sed can't process this invocation
  273   # correctly.  Breaking it into two sed invocations is a workaround.
  274   sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
  275     sed -e 's/$/ :/' >> "$depfile"
  276   rm -f "$tmpdepfile"
  277   ;;
  278 
  279 tru64)
  280    # The Tru64 compiler uses -MD to generate dependencies as a side
  281    # effect.  `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
  282    # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
  283    # dependencies in `foo.d' instead, so we check for that too.
  284    # Subdirectories are respected.
  285    dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
  286    test "x$dir" = "x$object" && dir=
  287    base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
  288 
  289    if test "$libtool" = yes; then
  290       # Dependencies are output in .lo.d with libtool 1.4.
  291       # With libtool 1.5 they are output both in $dir.libs/$base.o.d
  292       # and in $dir.libs/$base.o.d and $dir$base.o.d.  We process the
  293       # latter, because the former will be cleaned when $dir.libs is
  294       # erased.
  295       tmpdepfile1="$dir.libs/$base.lo.d"
  296       tmpdepfile2="$dir$base.o.d"
  297       tmpdepfile3="$dir.libs/$base.d"
  298       "$@" -Wc,-MD
  299    else
  300       tmpdepfile1="$dir$base.o.d"
  301       tmpdepfile2="$dir$base.d"
  302       tmpdepfile3="$dir$base.d"
  303       "$@" -MD
  304    fi
  305 
  306    stat=$?
  307    if test $stat -eq 0; then :
  308    else
  309       rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
  310       exit $stat
  311    fi
  312 
  313    if test -f "$tmpdepfile1"; then
  314       tmpdepfile="$tmpdepfile1"
  315    elif test -f "$tmpdepfile2"; then
  316       tmpdepfile="$tmpdepfile2"
  317    else
  318       tmpdepfile="$tmpdepfile3"
  319    fi
  320    if test -f "$tmpdepfile"; then
  321       sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
  322       # That's a tab and a space in the [].
  323       sed -e 's,^.*\.[a-z]*:[    ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
  324    else
  325       echo "#dummy" > "$depfile"
  326    fi
  327    rm -f "$tmpdepfile"
  328    ;;
  329 
  330 #nosideeffect)
  331   # This comment above is used by automake to tell side-effect
  332   # dependency tracking mechanisms from slower ones.
  333 
  334 dashmstdout)
  335   # Important note: in order to support this mode, a compiler *must*
  336   # always write the preprocessed file to stdout, regardless of -o.
  337   "$@" || exit $?
  338 
  339   # Remove the call to Libtool.
  340   if test "$libtool" = yes; then
  341     while test $1 != '--mode=compile'; do
  342       shift
  343     done
  344     shift
  345   fi
  346 
  347   # Remove `-o $object'.
  348   IFS=" "
  349   for arg
  350   do
  351     case $arg in
  352     -o)
  353       shift
  354       ;;
  355     $object)
  356       shift
  357       ;;
  358     *)
  359       set fnord "$@" "$arg"
  360       shift # fnord
  361       shift # $arg
  362       ;;
  363     esac
  364   done
  365 
  366   test -z "$dashmflag" && dashmflag=-M
  367   # Require at least two characters before searching for `:'
  368   # in the target name.  This is to cope with DOS-style filenames:
  369   # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
  370   "$@" $dashmflag |
  371     sed 's:^[  ]*[^: ][^:][^:]*\:[    ]*:'"$object"'\: :' > "$tmpdepfile"
  372   rm -f "$depfile"
  373   cat < "$tmpdepfile" > "$depfile"
  374   tr ' ' '
  375 ' < "$tmpdepfile" | \
  376 ## Some versions of the HPUX 10.20 sed can't process this invocation
  377 ## correctly.  Breaking it into two sed invocations is a workaround.
  378     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
  379   rm -f "$tmpdepfile"
  380   ;;
  381 
  382 dashXmstdout)
  383   # This case only exists to satisfy depend.m4.  It is never actually
  384   # run, as this mode is specially recognized in the preamble.
  385   exit 1
  386   ;;
  387 
  388 makedepend)
  389   "$@" || exit $?
  390   # Remove any Libtool call
  391   if test "$libtool" = yes; then
  392     while test $1 != '--mode=compile'; do
  393       shift
  394     done
  395     shift
  396   fi
  397   # X makedepend
  398   shift
  399   cleared=no
  400   for arg in "$@"; do
  401     case $cleared in
  402     no)
  403       set ""; shift
  404       cleared=yes ;;
  405     esac
  406     case "$arg" in
  407     -D*|-I*)
  408       set fnord "$@" "$arg"; shift ;;
  409     # Strip any option that makedepend may not understand.  Remove
  410     # the object too, otherwise makedepend will parse it as a source file.
  411     -*|$object)
  412       ;;
  413     *)
  414       set fnord "$@" "$arg"; shift ;;
  415     esac
  416   done
  417   obj_suffix="`echo $object | sed 's/^.*\././'`"
  418   touch "$tmpdepfile"
  419   ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
  420   rm -f "$depfile"
  421   cat < "$tmpdepfile" > "$depfile"
  422   sed '1,2d' "$tmpdepfile" | tr ' ' '
  423 ' | \
  424 ## Some versions of the HPUX 10.20 sed can't process this invocation
  425 ## correctly.  Breaking it into two sed invocations is a workaround.
  426     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
  427   rm -f "$tmpdepfile" "$tmpdepfile".bak
  428   ;;
  429 
  430 cpp)
  431   # Important note: in order to support this mode, a compiler *must*
  432   # always write the preprocessed file to stdout.
  433   "$@" || exit $?
  434 
  435   # Remove the call to Libtool.
  436   if test "$libtool" = yes; then
  437     while test $1 != '--mode=compile'; do
  438       shift
  439     done
  440     shift
  441   fi
  442 
  443   # Remove `-o $object'.
  444   IFS=" "
  445   for arg
  446   do
  447     case $arg in
  448     -o)
  449       shift
  450       ;;
  451     $object)
  452       shift
  453       ;;
  454     *)
  455       set fnord "$@" "$arg"
  456       shift # fnord
  457       shift # $arg
  458       ;;
  459     esac
  460   done
  461 
  462   "$@" -E |
  463     sed -n '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
  464     sed '$ s: \\$::' > "$tmpdepfile"
  465   rm -f "$depfile"
  466   echo "$object : \\" > "$depfile"
  467   cat < "$tmpdepfile" >> "$depfile"
  468   sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
  469   rm -f "$tmpdepfile"
  470   ;;
  471 
  472 msvisualcpp)
  473   # Important note: in order to support this mode, a compiler *must*
  474   # always write the preprocessed file to stdout, regardless of -o,
  475   # because we must use -o when running libtool.
  476   "$@" || exit $?
  477   IFS=" "
  478   for arg
  479   do
  480     case "$arg" in
  481     "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
  482     set fnord "$@"
  483     shift
  484     shift
  485     ;;
  486     *)
  487     set fnord "$@" "$arg"
  488     shift
  489     shift
  490     ;;
  491     esac
  492   done
  493   "$@" -E |
  494   sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
  495   rm -f "$depfile"
  496   echo "$object : \\" > "$depfile"
  497   . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::    \1 \\:p' >> "$depfile"
  498   echo "    " >> "$depfile"
  499   . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
  500   rm -f "$tmpdepfile"
  501   ;;
  502 
  503 none)
  504   exec "$@"
  505   ;;
  506 
  507 *)
  508   echo "Unknown depmode $depmode" 1>&2
  509   exit 1
  510   ;;
  511 esac
  512 
  513 exit 0
  514 
  515 # Local Variables:
  516 # mode: shell-script
  517 # sh-indentation: 2
  518 # eval: (add-hook 'write-file-hooks 'time-stamp)
  519 # time-stamp-start: "scriptversion="
  520 # time-stamp-format: "%:y-%02m-%02d.%02H"
  521 # time-stamp-end: "$"
  522 # End: