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