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    1 #! /bin/sh
    2 # depcomp - compile a program generating dependencies as side-effects
    3 
    4 scriptversion=2005-07-09.11
    5 
    6 # Copyright (C) 1999, 2000, 2003, 2004, 2005 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., 51 Franklin Street, Fifth Floor, Boston, MA
   21 # 02110-1301, 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 $?
   54     ;;
   55   -v | --v*)
   56     echo "depcomp $scriptversion"
   57     exit $?
   58     ;;
   59 esac
   60 
   61 if test -z "$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       # With Tru64 cc, shared objects can also be used to make a
  291       # static library.  This mecanism is used in libtool 1.4 series to
  292       # handle both shared and static libraries in a single compilation.
  293       # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
  294       #
  295       # With libtool 1.5 this exception was removed, and libtool now
  296       # generates 2 separate objects for the 2 libraries.  These two
  297       # compilations output dependencies in in $dir.libs/$base.o.d and
  298       # in $dir$base.o.d.  We have to check for both files, because
  299       # one of the two compilations can be disabled.  We should prefer
  300       # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
  301       # automatically cleaned when .libs/ is deleted, while ignoring
  302       # the former would cause a distcleancheck panic.
  303       tmpdepfile1=$dir.libs/$base.lo.d   # libtool 1.4
  304       tmpdepfile2=$dir$base.o.d          # libtool 1.5
  305       tmpdepfile3=$dir.libs/$base.o.d    # libtool 1.5
  306       tmpdepfile4=$dir.libs/$base.d      # Compaq CCC V6.2-504
  307       "$@" -Wc,-MD
  308    else
  309       tmpdepfile1=$dir$base.o.d
  310       tmpdepfile2=$dir$base.d
  311       tmpdepfile3=$dir$base.d
  312       tmpdepfile4=$dir$base.d
  313       "$@" -MD
  314    fi
  315 
  316    stat=$?
  317    if test $stat -eq 0; then :
  318    else
  319       rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
  320       exit $stat
  321    fi
  322 
  323    for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
  324    do
  325      test -f "$tmpdepfile" && break
  326    done
  327    if test -f "$tmpdepfile"; then
  328       sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
  329       # That's a tab and a space in the [].
  330       sed -e 's,^.*\.[a-z]*:[    ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
  331    else
  332       echo "#dummy" > "$depfile"
  333    fi
  334    rm -f "$tmpdepfile"
  335    ;;
  336 
  337 #nosideeffect)
  338   # This comment above is used by automake to tell side-effect
  339   # dependency tracking mechanisms from slower ones.
  340 
  341 dashmstdout)
  342   # Important note: in order to support this mode, a compiler *must*
  343   # always write the preprocessed file to stdout, regardless of -o.
  344   "$@" || exit $?
  345 
  346   # Remove the call to Libtool.
  347   if test "$libtool" = yes; then
  348     while test $1 != '--mode=compile'; do
  349       shift
  350     done
  351     shift
  352   fi
  353 
  354   # Remove `-o $object'.
  355   IFS=" "
  356   for arg
  357   do
  358     case $arg in
  359     -o)
  360       shift
  361       ;;
  362     $object)
  363       shift
  364       ;;
  365     *)
  366       set fnord "$@" "$arg"
  367       shift # fnord
  368       shift # $arg
  369       ;;
  370     esac
  371   done
  372 
  373   test -z "$dashmflag" && dashmflag=-M
  374   # Require at least two characters before searching for `:'
  375   # in the target name.  This is to cope with DOS-style filenames:
  376   # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
  377   "$@" $dashmflag |
  378     sed 's:^[  ]*[^: ][^:][^:]*\:[    ]*:'"$object"'\: :' > "$tmpdepfile"
  379   rm -f "$depfile"
  380   cat < "$tmpdepfile" > "$depfile"
  381   tr ' ' '
  382 ' < "$tmpdepfile" | \
  383 ## Some versions of the HPUX 10.20 sed can't process this invocation
  384 ## correctly.  Breaking it into two sed invocations is a workaround.
  385     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
  386   rm -f "$tmpdepfile"
  387   ;;
  388 
  389 dashXmstdout)
  390   # This case only exists to satisfy depend.m4.  It is never actually
  391   # run, as this mode is specially recognized in the preamble.
  392   exit 1
  393   ;;
  394 
  395 makedepend)
  396   "$@" || exit $?
  397   # Remove any Libtool call
  398   if test "$libtool" = yes; then
  399     while test $1 != '--mode=compile'; do
  400       shift
  401     done
  402     shift
  403   fi
  404   # X makedepend
  405   shift
  406   cleared=no
  407   for arg in "$@"; do
  408     case $cleared in
  409     no)
  410       set ""; shift
  411       cleared=yes ;;
  412     esac
  413     case "$arg" in
  414     -D*|-I*)
  415       set fnord "$@" "$arg"; shift ;;
  416     # Strip any option that makedepend may not understand.  Remove
  417     # the object too, otherwise makedepend will parse it as a source file.
  418     -*|$object)
  419       ;;
  420     *)
  421       set fnord "$@" "$arg"; shift ;;
  422     esac
  423   done
  424   obj_suffix="`echo $object | sed 's/^.*\././'`"
  425   touch "$tmpdepfile"
  426   ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
  427   rm -f "$depfile"
  428   cat < "$tmpdepfile" > "$depfile"
  429   sed '1,2d' "$tmpdepfile" | tr ' ' '
  430 ' | \
  431 ## Some versions of the HPUX 10.20 sed can't process this invocation
  432 ## correctly.  Breaking it into two sed invocations is a workaround.
  433     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
  434   rm -f "$tmpdepfile" "$tmpdepfile".bak
  435   ;;
  436 
  437 cpp)
  438   # Important note: in order to support this mode, a compiler *must*
  439   # always write the preprocessed file to stdout.
  440   "$@" || exit $?
  441 
  442   # Remove the call to Libtool.
  443   if test "$libtool" = yes; then
  444     while test $1 != '--mode=compile'; do
  445       shift
  446     done
  447     shift
  448   fi
  449 
  450   # Remove `-o $object'.
  451   IFS=" "
  452   for arg
  453   do
  454     case $arg in
  455     -o)
  456       shift
  457       ;;
  458     $object)
  459       shift
  460       ;;
  461     *)
  462       set fnord "$@" "$arg"
  463       shift # fnord
  464       shift # $arg
  465       ;;
  466     esac
  467   done
  468 
  469   "$@" -E |
  470     sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
  471        -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
  472     sed '$ s: \\$::' > "$tmpdepfile"
  473   rm -f "$depfile"
  474   echo "$object : \\" > "$depfile"
  475   cat < "$tmpdepfile" >> "$depfile"
  476   sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
  477   rm -f "$tmpdepfile"
  478   ;;
  479 
  480 msvisualcpp)
  481   # Important note: in order to support this mode, a compiler *must*
  482   # always write the preprocessed file to stdout, regardless of -o,
  483   # because we must use -o when running libtool.
  484   "$@" || exit $?
  485   IFS=" "
  486   for arg
  487   do
  488     case "$arg" in
  489     "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
  490     set fnord "$@"
  491     shift
  492     shift
  493     ;;
  494     *)
  495     set fnord "$@" "$arg"
  496     shift
  497     shift
  498     ;;
  499     esac
  500   done
  501   "$@" -E |
  502   sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
  503   rm -f "$depfile"
  504   echo "$object : \\" > "$depfile"
  505   . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::    \1 \\:p' >> "$depfile"
  506   echo "    " >> "$depfile"
  507   . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
  508   rm -f "$tmpdepfile"
  509   ;;
  510 
  511 none)
  512   exec "$@"
  513   ;;
  514 
  515 *)
  516   echo "Unknown depmode $depmode" 1>&2
  517   exit 1
  518   ;;
  519 esac
  520 
  521 exit 0
  522 
  523 # Local Variables:
  524 # mode: shell-script
  525 # sh-indentation: 2
  526 # eval: (add-hook 'write-file-hooks 'time-stamp)
  527 # time-stamp-start: "scriptversion="
  528 # time-stamp-format: "%:y-%02m-%02d.%02H"
  529 # time-stamp-end: "$"
  530 # End: