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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 (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 $?
     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:
    531