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    1 #! /bin/sh
    2 
    3 # depcomp - compile a program generating dependencies as side-effects
    4 # Copyright 1999, 2000 Free Software Foundation, Inc.
    5 
    6 # This program is free software; you can redistribute it and/or modify
    7 # it under the terms of the GNU General Public License as published by
    8 # the Free Software Foundation; either version 2, or (at your option)
    9 # any later version.
   10 
   11 # This program is distributed in the hope that it will be useful,
   12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
   13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   14 # GNU General Public License for more details.
   15 
   16 # You should have received a copy of the GNU General Public License
   17 # along with this program; if not, write to the Free Software
   18 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
   19 # 02111-1307, USA.
   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 if test -z "$depmode" || test -z "$source" || test -z "$object"; then
   29   echo "depcomp: Variables source, object and depmode must be set" 1>&2
   30   exit 1
   31 fi
   32 # `libtool' can also be set to `yes' or `no'.
   33 
   34 depfile=${depfile-`echo "$object" | sed 's,\([^/]*\)$,.deps/\1,;s/\.\([^.]*\)$/.P\1/'`}
   35 tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
   36 
   37 rm -f "$tmpdepfile"
   38 
   39 # Some modes work just like other modes, but use different flags.  We
   40 # parameterize here, but still list the modes in the big case below,
   41 # to make depend.m4 easier to write.  Note that we *cannot* use a case
   42 # here, because this file can only contain one case statement.
   43 if test "$depmode" = hp; then
   44   # HP compiler uses -M and no extra arg.
   45   gccflag=-M
   46   depmode=gcc
   47 fi
   48 
   49 if test "$depmode" = dashXmstdout; then
   50    # This is just like dashmstdout with a different argument.
   51    dashmflag=-xM
   52    depmode=dashmstdout
   53 fi
   54 
   55 case "$depmode" in
   56 gcc3)
   57 ## gcc 3 implements dependency tracking that does exactly what
   58 ## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
   59 ## it if -MD -MP comes after the -MF stuff.  Hmm.
   60   "$@" -MT "$object" -MD -MP -MF "$tmpdepfile"
   61   stat=$?
   62   if test $stat -eq 0; then :
   63   else
   64     rm -f "$tmpdepfile"
   65     exit $stat
   66   fi
   67   mv "$tmpdepfile" "$depfile"
   68   ;;
   69 
   70 gcc)
   71 ## There are various ways to get dependency output from gcc.  Here's
   72 ## why we pick this rather obscure method:
   73 ## - Don't want to use -MD because we'd like the dependencies to end
   74 ##   up in a subdir.  Having to rename by hand is ugly.
   75 ##   (We might end up doing this anyway to support other compilers.)
   76 ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
   77 ##   -MM, not -M (despite what the docs say).
   78 ## - Using -M directly means running the compiler twice (even worse
   79 ##   than renaming).
   80   if test -z "$gccflag"; then
   81     gccflag=-MD,
   82   fi
   83   "$@" -Wp,"$gccflag$tmpdepfile"
   84   stat=$?
   85   if test $stat -eq 0; then :
   86   else
   87     rm -f "$tmpdepfile"
   88     exit $stat
   89   fi
   90   rm -f "$depfile"
   91   echo "$object : \\" > "$depfile"
   92   alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
   93 ## The second -e expression handles DOS-style file names with drive letters.
   94   sed -e 's/^[^:]*: / /' \
   95       -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
   96 ## This next piece of magic avoids the `deleted header file' problem.
   97 ## The problem is that when a header file which appears in a .P file
   98 ## is deleted, the dependency causes make to die (because there is
   99 ## typically no way to rebuild the header).  We avoid this by adding
  100 ## dummy dependencies for each header file.  Too bad gcc doesn't do
  101 ## this for us directly.
  102   tr ' ' '
  103 ' < "$tmpdepfile" |
  104 ## Some versions of gcc put a space before the `:'.  On the theory
  105 ## that the space means something, we add a space to the output as
  106 ## well.
  107 ## Some versions of the HPUX 10.20 sed can't process this invocation
  108 ## correctly.  Breaking it into two sed invocations is a workaround.
  109     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
  110   rm -f "$tmpdepfile"
  111   ;;
  112 
  113 hp)
  114   # This case exists only to let depend.m4 do its work.  It works by
  115   # looking at the text of this script.  This case will never be run,
  116   # since it is checked for above.
  117   exit 1
  118   ;;
  119 
  120 sgi)
  121   if test "$libtool" = yes; then
  122     "$@" "-Wp,-MDupdate,$tmpdepfile"
  123   else
  124     "$@" -MDupdate "$tmpdepfile"
  125   fi
  126   stat=$?
  127   if test $stat -eq 0; then :
  128   else
  129     rm -f "$tmpdepfile"
  130     exit $stat
  131   fi
  132   rm -f "$depfile"
  133 
  134   if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
  135     echo "$object : \\" > "$depfile"
  136 
  137     # Clip off the initial element (the dependent).  Don't try to be
  138     # clever and replace this with sed code, as IRIX sed won't handle
  139     # lines with more than a fixed number of characters (4096 in
  140     # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
  141     # the IRIX cc adds comments like `#:fec' to the end of the
  142     # dependency line.
  143     tr ' ' '
  144 ' < "$tmpdepfile" \
  145     | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
  146     tr '
  147 ' ' ' >> $depfile
  148     echo >> $depfile
  149 
  150     # The second pass generates a dummy entry for each header file.
  151     tr ' ' '
  152 ' < "$tmpdepfile" \
  153    | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
  154    >> $depfile
  155   else
  156     # The sourcefile does not contain any dependencies, so just
  157     # store a dummy comment line, to avoid errors with the Makefile
  158     # "include basename.Plo" scheme.
  159     echo "#dummy" > "$depfile"
  160   fi
  161   rm -f "$tmpdepfile"
  162   ;;
  163 
  164 aix)
  165   # The C for AIX Compiler uses -M and outputs the dependencies
  166   # in a .u file.  This file always lives in the current directory.
  167   # Also, the AIX compiler puts `$object:' at the start of each line;
  168   # $object doesn't have directory information.
  169   stripped=`echo "$object" | sed -e 's,^.*/,,' -e 's/\(.*\)\..*$/\1/'`
  170   tmpdepfile="$stripped.u"
  171   outname="$stripped.o"
  172   if test "$libtool" = yes; then
  173     "$@" -Wc,-M
  174   else
  175     "$@" -M
  176   fi
  177 
  178   stat=$?
  179   if test $stat -eq 0; then :
  180   else
  181     rm -f "$tmpdepfile"
  182     exit $stat
  183   fi
  184 
  185   if test -f "$tmpdepfile"; then
  186     # Each line is of the form `foo.o: dependent.h'.
  187     # Do two passes, one to just change these to
  188     # `$object: dependent.h' and one to simply `dependent.h:'.
  189     sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile"
  190     sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
  191   else
  192     # The sourcefile does not contain any dependencies, so just
  193     # store a dummy comment line, to avoid errors with the Makefile
  194     # "include basename.Plo" scheme.
  195     echo "#dummy" > "$depfile"
  196   fi
  197   rm -f "$tmpdepfile"
  198   ;;
  199 
  200 tru64)
  201    # The Tru64 AIX compiler uses -MD to generate dependencies as a side
  202    # effect.  `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
  203    # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put 
  204    # dependencies in `foo.d' instead, so we check for that too.
  205    # Subdirectories are respected.
  206 
  207    tmpdepfile1="$object.d"
  208    tmpdepfile2=`echo "$object" | sed -e 's/.o$/.d/'` 
  209    if test "$libtool" = yes; then
  210       "$@" -Wc,-MD
  211    else
  212       "$@" -MD
  213    fi
  214 
  215    stat=$?
  216    if test $stat -eq 0; then :
  217    else
  218       rm -f "$tmpdepfile1" "$tmpdepfile2"
  219       exit $stat
  220    fi
  221 
  222    if test -f "$tmpdepfile1"; then
  223       tmpdepfile="$tmpdepfile1"
  224    else
  225       tmpdepfile="$tmpdepfile2"
  226    fi
  227    if test -f "$tmpdepfile"; then
  228       sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
  229       # That's a space and a tab in the [].
  230       sed -e 's,^.*\.[a-z]*:[   ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
  231    else
  232       echo "#dummy" > "$depfile"
  233    fi
  234    rm -f "$tmpdepfile"
  235    ;;
  236 
  237 #nosideeffect)
  238   # This comment above is used by automake to tell side-effect
  239   # dependency tracking mechanisms from slower ones.
  240 
  241 dashmstdout)
  242   # Important note: in order to support this mode, a compiler *must*
  243   # always write the proprocessed file to stdout, regardless of -o,
  244   # because we must use -o when running libtool.
  245   test -z "$dashmflag" && dashmflag=-M
  246   ( IFS=" "
  247     case " $* " in
  248     *" --mode=compile "*) # this is libtool, let us make it quiet
  249       for arg
  250       do # cycle over the arguments
  251         case "$arg" in
  252     "--mode=compile")
  253       # insert --quiet before "--mode=compile"
  254       set fnord "$@" --quiet
  255       shift # fnord
  256       ;;
  257     esac
  258     set fnord "$@" "$arg"
  259     shift # fnord
  260     shift # "$arg"
  261       done
  262       ;;
  263     esac
  264     "$@" $dashmflag | sed 's:^[^:]*\:[  ]*:'"$object"'\: :' > "$tmpdepfile"
  265   ) &
  266   proc=$!
  267   "$@"
  268   stat=$?
  269   wait "$proc"
  270   if test "$stat" != 0; then exit $stat; fi
  271   rm -f "$depfile"
  272   cat < "$tmpdepfile" > "$depfile"
  273   tr ' ' '
  274 ' < "$tmpdepfile" | \
  275 ## Some versions of the HPUX 10.20 sed can't process this invocation
  276 ## correctly.  Breaking it into two sed invocations is a workaround.
  277     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
  278   rm -f "$tmpdepfile"
  279   ;;
  280 
  281 dashXmstdout)
  282   # This case only exists to satisfy depend.m4.  It is never actually
  283   # run, as this mode is specially recognized in the preamble.
  284   exit 1
  285   ;;
  286 
  287 makedepend)
  288   # X makedepend
  289   (
  290     shift
  291     cleared=no
  292     for arg in "$@"; do
  293       case $cleared in no)
  294         set ""; shift
  295     cleared=yes
  296       esac
  297       case "$arg" in
  298         -D*|-I*)
  299       set fnord "$@" "$arg"; shift;;
  300     -*)
  301       ;;
  302     *)
  303       set fnord "$@" "$arg"; shift;;
  304       esac
  305     done
  306     obj_suffix="`echo $object | sed 's/^.*\././'`"
  307     touch "$tmpdepfile"
  308     ${MAKEDEPEND-makedepend} 2>/dev/null -o"$obj_suffix" -f"$tmpdepfile" "$@"
  309   ) &
  310   proc=$!
  311   "$@"
  312   stat=$?
  313   wait "$proc"
  314   if test "$stat" != 0; then exit $stat; fi
  315   rm -f "$depfile"
  316   cat < "$tmpdepfile" > "$depfile"
  317   tail +3 "$tmpdepfile" | tr ' ' '
  318 ' | \
  319 ## Some versions of the HPUX 10.20 sed can't process this invocation
  320 ## correctly.  Breaking it into two sed invocations is a workaround.
  321     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
  322   rm -f "$tmpdepfile" "$tmpdepfile".bak
  323   ;;
  324 
  325 cpp)
  326   # Important note: in order to support this mode, a compiler *must*
  327   # always write the proprocessed file to stdout, regardless of -o,
  328   # because we must use -o when running libtool.
  329   ( IFS=" "
  330     case " $* " in
  331     *" --mode=compile "*)
  332       for arg
  333       do # cycle over the arguments
  334         case $arg in
  335     "--mode=compile")
  336       # insert --quiet before "--mode=compile"
  337       set fnord "$@" --quiet
  338       shift # fnord
  339       ;;
  340     esac
  341     set fnord "$@" "$arg"
  342     shift # fnord
  343     shift # "$arg"
  344       done
  345       ;;
  346     esac
  347     "$@" -E |
  348     sed -n '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
  349     sed '$ s: \\$::' > "$tmpdepfile"
  350   ) &
  351   proc=$!
  352   "$@"
  353   stat=$?
  354   wait "$proc"
  355   if test "$stat" != 0; then exit $stat; fi
  356   rm -f "$depfile"
  357   echo "$object : \\" > "$depfile"
  358   cat < "$tmpdepfile" >> "$depfile"
  359   sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
  360   rm -f "$tmpdepfile"
  361   ;;
  362 
  363 msvisualcpp)
  364   # Important note: in order to support this mode, a compiler *must*
  365   # always write the proprocessed file to stdout, regardless of -o,
  366   # because we must use -o when running libtool.
  367   ( IFS=" "
  368     case " $* " in
  369     *" --mode=compile "*)
  370       for arg
  371       do # cycle over the arguments
  372         case $arg in
  373     "--mode=compile")
  374       # insert --quiet before "--mode=compile"
  375       set fnord "$@" --quiet
  376       shift # fnord
  377       ;;
  378     esac
  379     set fnord "$@" "$arg"
  380     shift # fnord
  381     shift # "$arg"
  382       done
  383       ;;
  384     esac
  385     "$@" -E |
  386     sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
  387   ) &
  388   proc=$!
  389   "$@"
  390   stat=$?
  391   wait "$proc"
  392   if test "$stat" != 0; then exit $stat; fi
  393   rm -f "$depfile"
  394   echo "$object : \\" > "$depfile"
  395   . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::    \1 \\:p' >> "$depfile"
  396   echo "    " >> "$depfile"
  397   . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
  398   rm -f "$tmpdepfile"
  399   ;;
  400 
  401 none)
  402   exec "$@"
  403   ;;
  404 
  405 *)
  406   echo "Unknown depmode $depmode" 1>&2
  407   exit 1
  408   ;;
  409 esac
  410 
  411 exit 0