Annotation of tme/depcomp, revision 1.1

1.1     ! root        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

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