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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 (at] 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 (at] 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:
    523