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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 "$tmpdepfile"
  207   ;;
  208 
  209 tru64)
  210    # The Tru64 compiler uses -MD to generate dependencies as a side
  211    # effect.  `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
  212    # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
  213    # dependencies in `foo.d' instead, so we check for that too.
  214    # Subdirectories are respected.
  215    dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
  216    test "x$dir" = "x$object" && dir=
  217    base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
  218 
  219    if test "$libtool" = yes; then
  220       tmpdepfile1="$dir.libs/$base.lo.d"
  221       tmpdepfile2="$dir.libs/$base.d"
  222       "$@" -Wc,-MD
  223    else
  224       tmpdepfile1="$dir$base.o.d"
  225       tmpdepfile2="$dir$base.d"
  226       "$@" -MD
  227    fi
  228 
  229    stat=$?
  230    if test $stat -eq 0; then :
  231    else
  232       rm -f "$tmpdepfile1" "$tmpdepfile2"
  233       exit $stat
  234    fi
  235 
  236    if test -f "$tmpdepfile1"; then
  237       tmpdepfile="$tmpdepfile1"
  238    else
  239       tmpdepfile="$tmpdepfile2"
  240    fi
  241    if test -f "$tmpdepfile"; then
  242       sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
  243       # That's a space and a tab in the [].
  244       sed -e 's,^.*\.[a-z]*:[   ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
  245    else
  246       echo "#dummy" > "$depfile"
  247    fi
  248    rm -f "$tmpdepfile"
  249    ;;
  250 
  251 #nosideeffect)
  252   # This comment above is used by automake to tell side-effect
  253   # dependency tracking mechanisms from slower ones.
  254 
  255 dashmstdout)
  256   # Important note: in order to support this mode, a compiler *must*
  257   # always write the proprocessed file to stdout, regardless of -o.
  258   "$@" || exit $?
  259 
  260   # Remove the call to Libtool.
  261   if test "$libtool" = yes; then
  262     while test $1 != '--mode=compile'; do
  263       shift
  264     done
  265     shift
  266   fi
  267 
  268   # Remove `-o $object'.  We will use -o /dev/null later,
  269   # however we can't do the remplacement now because
  270   # `-o $object' might simply not be used
  271   IFS=" "
  272   for arg
  273   do
  274     case $arg in
  275     -o)
  276       shift
  277       ;;
  278     $object)
  279       shift
  280       ;;
  281     *)
  282       set fnord "$@" "$arg"
  283       shift # fnord
  284       shift # $arg
  285       ;;
  286     esac
  287   done
  288 
  289   test -z "$dashmflag" && dashmflag=-M
  290   "$@" -o /dev/null $dashmflag | sed 's:^[^:]*\:[   ]*:'"$object"'\: :' > "$tmpdepfile"
  291   rm -f "$depfile"
  292   cat < "$tmpdepfile" > "$depfile"
  293   tr ' ' '
  294 ' < "$tmpdepfile" | \
  295 ## Some versions of the HPUX 10.20 sed can't process this invocation
  296 ## correctly.  Breaking it into two sed invocations is a workaround.
  297     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
  298   rm -f "$tmpdepfile"
  299   ;;
  300 
  301 dashXmstdout)
  302   # This case only exists to satisfy depend.m4.  It is never actually
  303   # run, as this mode is specially recognized in the preamble.
  304   exit 1
  305   ;;
  306 
  307 makedepend)
  308   "$@" || exit $?
  309   # X makedepend
  310   shift
  311   cleared=no
  312   for arg in "$@"; do
  313     case $cleared in
  314     no)
  315       set ""; shift
  316       cleared=yes ;;
  317     esac
  318     case "$arg" in
  319     -D*|-I*)
  320       set fnord "$@" "$arg"; shift ;;
  321     -*)
  322       ;;
  323     *)
  324       set fnord "$@" "$arg"; shift ;;
  325     esac
  326   done
  327   obj_suffix="`echo $object | sed 's/^.*\././'`"
  328   touch "$tmpdepfile"
  329   ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
  330   rm -f "$depfile"
  331   cat < "$tmpdepfile" > "$depfile"
  332   sed '1,2d' "$tmpdepfile" | tr ' ' '
  333 ' | \
  334 ## Some versions of the HPUX 10.20 sed can't process this invocation
  335 ## correctly.  Breaking it into two sed invocations is a workaround.
  336     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
  337   rm -f "$tmpdepfile" "$tmpdepfile".bak
  338   ;;
  339 
  340 cpp)
  341   # Important note: in order to support this mode, a compiler *must*
  342   # always write the proprocessed file to stdout.
  343   "$@" || exit $?
  344 
  345   # Remove the call to Libtool.
  346   if test "$libtool" = yes; then
  347     while test $1 != '--mode=compile'; do
  348       shift
  349     done
  350     shift
  351   fi
  352 
  353   # Remove `-o $object'.
  354   IFS=" "
  355   for arg
  356   do
  357     case $arg in
  358     -o)
  359       shift
  360       ;;
  361     $object)
  362       shift
  363       ;;
  364     *)
  365       set fnord "$@" "$arg"
  366       shift # fnord
  367       shift # $arg
  368       ;;
  369     esac
  370   done
  371 
  372   "$@" -E |
  373     sed -n '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
  374     sed '$ s: \\$::' > "$tmpdepfile"
  375   rm -f "$depfile"
  376   echo "$object : \\" > "$depfile"
  377   cat < "$tmpdepfile" >> "$depfile"
  378   sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
  379   rm -f "$tmpdepfile"
  380   ;;
  381 
  382 msvisualcpp)
  383   # Important note: in order to support this mode, a compiler *must*
  384   # always write the proprocessed file to stdout, regardless of -o,
  385   # because we must use -o when running libtool.
  386   "$@" || exit $?
  387   IFS=" "
  388   for arg
  389   do
  390     case "$arg" in
  391     "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
  392     set fnord "$@"
  393     shift
  394     shift
  395     ;;
  396     *)
  397     set fnord "$@" "$arg"
  398     shift
  399     shift
  400     ;;
  401     esac
  402   done
  403   "$@" -E |
  404   sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
  405   rm -f "$depfile"
  406   echo "$object : \\" > "$depfile"
  407   . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::    \1 \\:p' >> "$depfile"
  408   echo "    " >> "$depfile"
  409   . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
  410   rm -f "$tmpdepfile"
  411   ;;
  412 
  413 none)
  414   exec "$@"
  415   ;;
  416 
  417 *)
  418   echo "Unknown depmode $depmode" 1>&2
  419   exit 1
  420   ;;
  421 esac
  422 
  423 exit 0