Annotation of embedaddon/tmux/etc/depcomp, revision 1.1.1.1

1.1       misho       1: #! /bin/sh
                      2: # depcomp - compile a program generating dependencies as side-effects
                      3: 
                      4: scriptversion=2013-05-30.07; # UTC
                      5: 
                      6: # Copyright (C) 1999-2014 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, see <http://www.gnu.org/licenses/>.
                     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: case $1 in
                     29:   '')
                     30:     echo "$0: No command.  Try '$0 --help' for more information." 1>&2
                     31:     exit 1;
                     32:     ;;
                     33:   -h | --h*)
                     34:     cat <<\EOF
                     35: Usage: depcomp [--help] [--version] PROGRAM [ARGS]
                     36: 
                     37: Run PROGRAMS ARGS to compile a file, generating dependencies
                     38: as side-effects.
                     39: 
                     40: Environment variables:
                     41:   depmode     Dependency tracking mode.
                     42:   source      Source file read by 'PROGRAMS ARGS'.
                     43:   object      Object file output by 'PROGRAMS ARGS'.
                     44:   DEPDIR      directory where to store dependencies.
                     45:   depfile     Dependency file to output.
                     46:   tmpdepfile  Temporary file to use when outputting dependencies.
                     47:   libtool     Whether libtool is used (yes/no).
                     48: 
                     49: Report bugs to <bug-automake@gnu.org>.
                     50: EOF
                     51:     exit $?
                     52:     ;;
                     53:   -v | --v*)
                     54:     echo "depcomp $scriptversion"
                     55:     exit $?
                     56:     ;;
                     57: esac
                     58: 
                     59: # Get the directory component of the given path, and save it in the
                     60: # global variables '$dir'.  Note that this directory component will
                     61: # be either empty or ending with a '/' character.  This is deliberate.
                     62: set_dir_from ()
                     63: {
                     64:   case $1 in
                     65:     */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;;
                     66:       *) dir=;;
                     67:   esac
                     68: }
                     69: 
                     70: # Get the suffix-stripped basename of the given path, and save it the
                     71: # global variable '$base'.
                     72: set_base_from ()
                     73: {
                     74:   base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'`
                     75: }
                     76: 
                     77: # If no dependency file was actually created by the compiler invocation,
                     78: # we still have to create a dummy depfile, to avoid errors with the
                     79: # Makefile "include basename.Plo" scheme.
                     80: make_dummy_depfile ()
                     81: {
                     82:   echo "#dummy" > "$depfile"
                     83: }
                     84: 
                     85: # Factor out some common post-processing of the generated depfile.
                     86: # Requires the auxiliary global variable '$tmpdepfile' to be set.
                     87: aix_post_process_depfile ()
                     88: {
                     89:   # If the compiler actually managed to produce a dependency file,
                     90:   # post-process it.
                     91:   if test -f "$tmpdepfile"; then
                     92:     # Each line is of the form 'foo.o: dependency.h'.
                     93:     # Do two passes, one to just change these to
                     94:     #   $object: dependency.h
                     95:     # and one to simply output
                     96:     #   dependency.h:
                     97:     # which is needed to avoid the deleted-header problem.
                     98:     { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile"
                     99:       sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile"
                    100:     } > "$depfile"
                    101:     rm -f "$tmpdepfile"
                    102:   else
                    103:     make_dummy_depfile
                    104:   fi
                    105: }
                    106: 
                    107: # A tabulation character.
                    108: tab='  '
                    109: # A newline character.
                    110: nl='
                    111: '
                    112: # Character ranges might be problematic outside the C locale.
                    113: # These definitions help.
                    114: upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ
                    115: lower=abcdefghijklmnopqrstuvwxyz
                    116: digits=0123456789
                    117: alpha=${upper}${lower}
                    118: 
                    119: if test -z "$depmode" || test -z "$source" || test -z "$object"; then
                    120:   echo "depcomp: Variables source, object and depmode must be set" 1>&2
                    121:   exit 1
                    122: fi
                    123: 
                    124: # Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
                    125: depfile=${depfile-`echo "$object" |
                    126:   sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
                    127: tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
                    128: 
                    129: rm -f "$tmpdepfile"
                    130: 
                    131: # Avoid interferences from the environment.
                    132: gccflag= dashmflag=
                    133: 
                    134: # Some modes work just like other modes, but use different flags.  We
                    135: # parameterize here, but still list the modes in the big case below,
                    136: # to make depend.m4 easier to write.  Note that we *cannot* use a case
                    137: # here, because this file can only contain one case statement.
                    138: if test "$depmode" = hp; then
                    139:   # HP compiler uses -M and no extra arg.
                    140:   gccflag=-M
                    141:   depmode=gcc
                    142: fi
                    143: 
                    144: if test "$depmode" = dashXmstdout; then
                    145:   # This is just like dashmstdout with a different argument.
                    146:   dashmflag=-xM
                    147:   depmode=dashmstdout
                    148: fi
                    149: 
                    150: cygpath_u="cygpath -u -f -"
                    151: if test "$depmode" = msvcmsys; then
                    152:   # This is just like msvisualcpp but w/o cygpath translation.
                    153:   # Just convert the backslash-escaped backslashes to single forward
                    154:   # slashes to satisfy depend.m4
                    155:   cygpath_u='sed s,\\\\,/,g'
                    156:   depmode=msvisualcpp
                    157: fi
                    158: 
                    159: if test "$depmode" = msvc7msys; then
                    160:   # This is just like msvc7 but w/o cygpath translation.
                    161:   # Just convert the backslash-escaped backslashes to single forward
                    162:   # slashes to satisfy depend.m4
                    163:   cygpath_u='sed s,\\\\,/,g'
                    164:   depmode=msvc7
                    165: fi
                    166: 
                    167: if test "$depmode" = xlc; then
                    168:   # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information.
                    169:   gccflag=-qmakedep=gcc,-MF
                    170:   depmode=gcc
                    171: fi
                    172: 
                    173: case "$depmode" in
                    174: gcc3)
                    175: ## gcc 3 implements dependency tracking that does exactly what
                    176: ## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
                    177: ## it if -MD -MP comes after the -MF stuff.  Hmm.
                    178: ## Unfortunately, FreeBSD c89 acceptance of flags depends upon
                    179: ## the command line argument order; so add the flags where they
                    180: ## appear in depend2.am.  Note that the slowdown incurred here
                    181: ## affects only configure: in makefiles, %FASTDEP% shortcuts this.
                    182:   for arg
                    183:   do
                    184:     case $arg in
                    185:     -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
                    186:     *)  set fnord "$@" "$arg" ;;
                    187:     esac
                    188:     shift # fnord
                    189:     shift # $arg
                    190:   done
                    191:   "$@"
                    192:   stat=$?
                    193:   if test $stat -ne 0; then
                    194:     rm -f "$tmpdepfile"
                    195:     exit $stat
                    196:   fi
                    197:   mv "$tmpdepfile" "$depfile"
                    198:   ;;
                    199: 
                    200: gcc)
                    201: ## Note that this doesn't just cater to obsosete pre-3.x GCC compilers.
                    202: ## but also to in-use compilers like IMB xlc/xlC and the HP C compiler.
                    203: ## (see the conditional assignment to $gccflag above).
                    204: ## There are various ways to get dependency output from gcc.  Here's
                    205: ## why we pick this rather obscure method:
                    206: ## - Don't want to use -MD because we'd like the dependencies to end
                    207: ##   up in a subdir.  Having to rename by hand is ugly.
                    208: ##   (We might end up doing this anyway to support other compilers.)
                    209: ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
                    210: ##   -MM, not -M (despite what the docs say).  Also, it might not be
                    211: ##   supported by the other compilers which use the 'gcc' depmode.
                    212: ## - Using -M directly means running the compiler twice (even worse
                    213: ##   than renaming).
                    214:   if test -z "$gccflag"; then
                    215:     gccflag=-MD,
                    216:   fi
                    217:   "$@" -Wp,"$gccflag$tmpdepfile"
                    218:   stat=$?
                    219:   if test $stat -ne 0; then
                    220:     rm -f "$tmpdepfile"
                    221:     exit $stat
                    222:   fi
                    223:   rm -f "$depfile"
                    224:   echo "$object : \\" > "$depfile"
                    225:   # The second -e expression handles DOS-style file names with drive
                    226:   # letters.
                    227:   sed -e 's/^[^:]*: / /' \
                    228:       -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
                    229: ## This next piece of magic avoids the "deleted header file" problem.
                    230: ## The problem is that when a header file which appears in a .P file
                    231: ## is deleted, the dependency causes make to die (because there is
                    232: ## typically no way to rebuild the header).  We avoid this by adding
                    233: ## dummy dependencies for each header file.  Too bad gcc doesn't do
                    234: ## this for us directly.
                    235: ## Some versions of gcc put a space before the ':'.  On the theory
                    236: ## that the space means something, we add a space to the output as
                    237: ## well.  hp depmode also adds that space, but also prefixes the VPATH
                    238: ## to the object.  Take care to not repeat it in the output.
                    239: ## Some versions of the HPUX 10.20 sed can't process this invocation
                    240: ## correctly.  Breaking it into two sed invocations is a workaround.
                    241:   tr ' ' "$nl" < "$tmpdepfile" \
                    242:     | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \
                    243:     | sed -e 's/$/ :/' >> "$depfile"
                    244:   rm -f "$tmpdepfile"
                    245:   ;;
                    246: 
                    247: hp)
                    248:   # This case exists only to let depend.m4 do its work.  It works by
                    249:   # looking at the text of this script.  This case will never be run,
                    250:   # since it is checked for above.
                    251:   exit 1
                    252:   ;;
                    253: 
                    254: sgi)
                    255:   if test "$libtool" = yes; then
                    256:     "$@" "-Wp,-MDupdate,$tmpdepfile"
                    257:   else
                    258:     "$@" -MDupdate "$tmpdepfile"
                    259:   fi
                    260:   stat=$?
                    261:   if test $stat -ne 0; then
                    262:     rm -f "$tmpdepfile"
                    263:     exit $stat
                    264:   fi
                    265:   rm -f "$depfile"
                    266: 
                    267:   if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
                    268:     echo "$object : \\" > "$depfile"
                    269:     # Clip off the initial element (the dependent).  Don't try to be
                    270:     # clever and replace this with sed code, as IRIX sed won't handle
                    271:     # lines with more than a fixed number of characters (4096 in
                    272:     # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
                    273:     # the IRIX cc adds comments like '#:fec' to the end of the
                    274:     # dependency line.
                    275:     tr ' ' "$nl" < "$tmpdepfile" \
                    276:       | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \
                    277:       | tr "$nl" ' ' >> "$depfile"
                    278:     echo >> "$depfile"
                    279:     # The second pass generates a dummy entry for each header file.
                    280:     tr ' ' "$nl" < "$tmpdepfile" \
                    281:       | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
                    282:       >> "$depfile"
                    283:   else
                    284:     make_dummy_depfile
                    285:   fi
                    286:   rm -f "$tmpdepfile"
                    287:   ;;
                    288: 
                    289: xlc)
                    290:   # This case exists only to let depend.m4 do its work.  It works by
                    291:   # looking at the text of this script.  This case will never be run,
                    292:   # since it is checked for above.
                    293:   exit 1
                    294:   ;;
                    295: 
                    296: aix)
                    297:   # The C for AIX Compiler uses -M and outputs the dependencies
                    298:   # in a .u file.  In older versions, this file always lives in the
                    299:   # current directory.  Also, the AIX compiler puts '$object:' at the
                    300:   # start of each line; $object doesn't have directory information.
                    301:   # Version 6 uses the directory in both cases.
                    302:   set_dir_from "$object"
                    303:   set_base_from "$object"
                    304:   if test "$libtool" = yes; then
                    305:     tmpdepfile1=$dir$base.u
                    306:     tmpdepfile2=$base.u
                    307:     tmpdepfile3=$dir.libs/$base.u
                    308:     "$@" -Wc,-M
                    309:   else
                    310:     tmpdepfile1=$dir$base.u
                    311:     tmpdepfile2=$dir$base.u
                    312:     tmpdepfile3=$dir$base.u
                    313:     "$@" -M
                    314:   fi
                    315:   stat=$?
                    316:   if test $stat -ne 0; then
                    317:     rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
                    318:     exit $stat
                    319:   fi
                    320: 
                    321:   for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
                    322:   do
                    323:     test -f "$tmpdepfile" && break
                    324:   done
                    325:   aix_post_process_depfile
                    326:   ;;
                    327: 
                    328: tcc)
                    329:   # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26
                    330:   # FIXME: That version still under development at the moment of writing.
                    331:   #        Make that this statement remains true also for stable, released
                    332:   #        versions.
                    333:   # It will wrap lines (doesn't matter whether long or short) with a
                    334:   # trailing '\', as in:
                    335:   #
                    336:   #   foo.o : \
                    337:   #    foo.c \
                    338:   #    foo.h \
                    339:   #
                    340:   # It will put a trailing '\' even on the last line, and will use leading
                    341:   # spaces rather than leading tabs (at least since its commit 0394caf7
                    342:   # "Emit spaces for -MD").
                    343:   "$@" -MD -MF "$tmpdepfile"
                    344:   stat=$?
                    345:   if test $stat -ne 0; then
                    346:     rm -f "$tmpdepfile"
                    347:     exit $stat
                    348:   fi
                    349:   rm -f "$depfile"
                    350:   # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'.
                    351:   # We have to change lines of the first kind to '$object: \'.
                    352:   sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile"
                    353:   # And for each line of the second kind, we have to emit a 'dep.h:'
                    354:   # dummy dependency, to avoid the deleted-header problem.
                    355:   sed -n -e 's|^  *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile"
                    356:   rm -f "$tmpdepfile"
                    357:   ;;
                    358: 
                    359: ## The order of this option in the case statement is important, since the
                    360: ## shell code in configure will try each of these formats in the order
                    361: ## listed in this file.  A plain '-MD' option would be understood by many
                    362: ## compilers, so we must ensure this comes after the gcc and icc options.
                    363: pgcc)
                    364:   # Portland's C compiler understands '-MD'.
                    365:   # Will always output deps to 'file.d' where file is the root name of the
                    366:   # source file under compilation, even if file resides in a subdirectory.
                    367:   # The object file name does not affect the name of the '.d' file.
                    368:   # pgcc 10.2 will output
                    369:   #    foo.o: sub/foo.c sub/foo.h
                    370:   # and will wrap long lines using '\' :
                    371:   #    foo.o: sub/foo.c ... \
                    372:   #     sub/foo.h ... \
                    373:   #     ...
                    374:   set_dir_from "$object"
                    375:   # Use the source, not the object, to determine the base name, since
                    376:   # that's sadly what pgcc will do too.
                    377:   set_base_from "$source"
                    378:   tmpdepfile=$base.d
                    379: 
                    380:   # For projects that build the same source file twice into different object
                    381:   # files, the pgcc approach of using the *source* file root name can cause
                    382:   # problems in parallel builds.  Use a locking strategy to avoid stomping on
                    383:   # the same $tmpdepfile.
                    384:   lockdir=$base.d-lock
                    385:   trap "
                    386:     echo '$0: caught signal, cleaning up...' >&2
                    387:     rmdir '$lockdir'
                    388:     exit 1
                    389:   " 1 2 13 15
                    390:   numtries=100
                    391:   i=$numtries
                    392:   while test $i -gt 0; do
                    393:     # mkdir is a portable test-and-set.
                    394:     if mkdir "$lockdir" 2>/dev/null; then
                    395:       # This process acquired the lock.
                    396:       "$@" -MD
                    397:       stat=$?
                    398:       # Release the lock.
                    399:       rmdir "$lockdir"
                    400:       break
                    401:     else
                    402:       # If the lock is being held by a different process, wait
                    403:       # until the winning process is done or we timeout.
                    404:       while test -d "$lockdir" && test $i -gt 0; do
                    405:         sleep 1
                    406:         i=`expr $i - 1`
                    407:       done
                    408:     fi
                    409:     i=`expr $i - 1`
                    410:   done
                    411:   trap - 1 2 13 15
                    412:   if test $i -le 0; then
                    413:     echo "$0: failed to acquire lock after $numtries attempts" >&2
                    414:     echo "$0: check lockdir '$lockdir'" >&2
                    415:     exit 1
                    416:   fi
                    417: 
                    418:   if test $stat -ne 0; then
                    419:     rm -f "$tmpdepfile"
                    420:     exit $stat
                    421:   fi
                    422:   rm -f "$depfile"
                    423:   # Each line is of the form `foo.o: dependent.h',
                    424:   # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
                    425:   # Do two passes, one to just change these to
                    426:   # `$object: dependent.h' and one to simply `dependent.h:'.
                    427:   sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
                    428:   # Some versions of the HPUX 10.20 sed can't process this invocation
                    429:   # correctly.  Breaking it into two sed invocations is a workaround.
                    430:   sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \
                    431:     | sed -e 's/$/ :/' >> "$depfile"
                    432:   rm -f "$tmpdepfile"
                    433:   ;;
                    434: 
                    435: hp2)
                    436:   # The "hp" stanza above does not work with aCC (C++) and HP's ia64
                    437:   # compilers, which have integrated preprocessors.  The correct option
                    438:   # to use with these is +Maked; it writes dependencies to a file named
                    439:   # 'foo.d', which lands next to the object file, wherever that
                    440:   # happens to be.
                    441:   # Much of this is similar to the tru64 case; see comments there.
                    442:   set_dir_from  "$object"
                    443:   set_base_from "$object"
                    444:   if test "$libtool" = yes; then
                    445:     tmpdepfile1=$dir$base.d
                    446:     tmpdepfile2=$dir.libs/$base.d
                    447:     "$@" -Wc,+Maked
                    448:   else
                    449:     tmpdepfile1=$dir$base.d
                    450:     tmpdepfile2=$dir$base.d
                    451:     "$@" +Maked
                    452:   fi
                    453:   stat=$?
                    454:   if test $stat -ne 0; then
                    455:      rm -f "$tmpdepfile1" "$tmpdepfile2"
                    456:      exit $stat
                    457:   fi
                    458: 
                    459:   for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
                    460:   do
                    461:     test -f "$tmpdepfile" && break
                    462:   done
                    463:   if test -f "$tmpdepfile"; then
                    464:     sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile"
                    465:     # Add 'dependent.h:' lines.
                    466:     sed -ne '2,${
                    467:                s/^ *//
                    468:                s/ \\*$//
                    469:                s/$/:/
                    470:                p
                    471:              }' "$tmpdepfile" >> "$depfile"
                    472:   else
                    473:     make_dummy_depfile
                    474:   fi
                    475:   rm -f "$tmpdepfile" "$tmpdepfile2"
                    476:   ;;
                    477: 
                    478: tru64)
                    479:   # The Tru64 compiler uses -MD to generate dependencies as a side
                    480:   # effect.  'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'.
                    481:   # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
                    482:   # dependencies in 'foo.d' instead, so we check for that too.
                    483:   # Subdirectories are respected.
                    484:   set_dir_from  "$object"
                    485:   set_base_from "$object"
                    486: 
                    487:   if test "$libtool" = yes; then
                    488:     # Libtool generates 2 separate objects for the 2 libraries.  These
                    489:     # two compilations output dependencies in $dir.libs/$base.o.d and
                    490:     # in $dir$base.o.d.  We have to check for both files, because
                    491:     # one of the two compilations can be disabled.  We should prefer
                    492:     # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
                    493:     # automatically cleaned when .libs/ is deleted, while ignoring
                    494:     # the former would cause a distcleancheck panic.
                    495:     tmpdepfile1=$dir$base.o.d          # libtool 1.5
                    496:     tmpdepfile2=$dir.libs/$base.o.d    # Likewise.
                    497:     tmpdepfile3=$dir.libs/$base.d      # Compaq CCC V6.2-504
                    498:     "$@" -Wc,-MD
                    499:   else
                    500:     tmpdepfile1=$dir$base.d
                    501:     tmpdepfile2=$dir$base.d
                    502:     tmpdepfile3=$dir$base.d
                    503:     "$@" -MD
                    504:   fi
                    505: 
                    506:   stat=$?
                    507:   if test $stat -ne 0; then
                    508:     rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
                    509:     exit $stat
                    510:   fi
                    511: 
                    512:   for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
                    513:   do
                    514:     test -f "$tmpdepfile" && break
                    515:   done
                    516:   # Same post-processing that is required for AIX mode.
                    517:   aix_post_process_depfile
                    518:   ;;
                    519: 
                    520: msvc7)
                    521:   if test "$libtool" = yes; then
                    522:     showIncludes=-Wc,-showIncludes
                    523:   else
                    524:     showIncludes=-showIncludes
                    525:   fi
                    526:   "$@" $showIncludes > "$tmpdepfile"
                    527:   stat=$?
                    528:   grep -v '^Note: including file: ' "$tmpdepfile"
                    529:   if test $stat -ne 0; then
                    530:     rm -f "$tmpdepfile"
                    531:     exit $stat
                    532:   fi
                    533:   rm -f "$depfile"
                    534:   echo "$object : \\" > "$depfile"
                    535:   # The first sed program below extracts the file names and escapes
                    536:   # backslashes for cygpath.  The second sed program outputs the file
                    537:   # name when reading, but also accumulates all include files in the
                    538:   # hold buffer in order to output them again at the end.  This only
                    539:   # works with sed implementations that can handle large buffers.
                    540:   sed < "$tmpdepfile" -n '
                    541: /^Note: including file:  *\(.*\)/ {
                    542:   s//\1/
                    543:   s/\\/\\\\/g
                    544:   p
                    545: }' | $cygpath_u | sort -u | sed -n '
                    546: s/ /\\ /g
                    547: s/\(.*\)/'"$tab"'\1 \\/p
                    548: s/.\(.*\) \\/\1:/
                    549: H
                    550: $ {
                    551:   s/.*/'"$tab"'/
                    552:   G
                    553:   p
                    554: }' >> "$depfile"
                    555:   echo >> "$depfile" # make sure the fragment doesn't end with a backslash
                    556:   rm -f "$tmpdepfile"
                    557:   ;;
                    558: 
                    559: msvc7msys)
                    560:   # This case exists only to let depend.m4 do its work.  It works by
                    561:   # looking at the text of this script.  This case will never be run,
                    562:   # since it is checked for above.
                    563:   exit 1
                    564:   ;;
                    565: 
                    566: #nosideeffect)
                    567:   # This comment above is used by automake to tell side-effect
                    568:   # dependency tracking mechanisms from slower ones.
                    569: 
                    570: dashmstdout)
                    571:   # Important note: in order to support this mode, a compiler *must*
                    572:   # always write the preprocessed file to stdout, regardless of -o.
                    573:   "$@" || exit $?
                    574: 
                    575:   # Remove the call to Libtool.
                    576:   if test "$libtool" = yes; then
                    577:     while test "X$1" != 'X--mode=compile'; do
                    578:       shift
                    579:     done
                    580:     shift
                    581:   fi
                    582: 
                    583:   # Remove '-o $object'.
                    584:   IFS=" "
                    585:   for arg
                    586:   do
                    587:     case $arg in
                    588:     -o)
                    589:       shift
                    590:       ;;
                    591:     $object)
                    592:       shift
                    593:       ;;
                    594:     *)
                    595:       set fnord "$@" "$arg"
                    596:       shift # fnord
                    597:       shift # $arg
                    598:       ;;
                    599:     esac
                    600:   done
                    601: 
                    602:   test -z "$dashmflag" && dashmflag=-M
                    603:   # Require at least two characters before searching for ':'
                    604:   # in the target name.  This is to cope with DOS-style filenames:
                    605:   # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise.
                    606:   "$@" $dashmflag |
                    607:     sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile"
                    608:   rm -f "$depfile"
                    609:   cat < "$tmpdepfile" > "$depfile"
                    610:   # Some versions of the HPUX 10.20 sed can't process this sed invocation
                    611:   # correctly.  Breaking it into two sed invocations is a workaround.
                    612:   tr ' ' "$nl" < "$tmpdepfile" \
                    613:     | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
                    614:     | sed -e 's/$/ :/' >> "$depfile"
                    615:   rm -f "$tmpdepfile"
                    616:   ;;
                    617: 
                    618: dashXmstdout)
                    619:   # This case only exists to satisfy depend.m4.  It is never actually
                    620:   # run, as this mode is specially recognized in the preamble.
                    621:   exit 1
                    622:   ;;
                    623: 
                    624: makedepend)
                    625:   "$@" || exit $?
                    626:   # Remove any Libtool call
                    627:   if test "$libtool" = yes; then
                    628:     while test "X$1" != 'X--mode=compile'; do
                    629:       shift
                    630:     done
                    631:     shift
                    632:   fi
                    633:   # X makedepend
                    634:   shift
                    635:   cleared=no eat=no
                    636:   for arg
                    637:   do
                    638:     case $cleared in
                    639:     no)
                    640:       set ""; shift
                    641:       cleared=yes ;;
                    642:     esac
                    643:     if test $eat = yes; then
                    644:       eat=no
                    645:       continue
                    646:     fi
                    647:     case "$arg" in
                    648:     -D*|-I*)
                    649:       set fnord "$@" "$arg"; shift ;;
                    650:     # Strip any option that makedepend may not understand.  Remove
                    651:     # the object too, otherwise makedepend will parse it as a source file.
                    652:     -arch)
                    653:       eat=yes ;;
                    654:     -*|$object)
                    655:       ;;
                    656:     *)
                    657:       set fnord "$@" "$arg"; shift ;;
                    658:     esac
                    659:   done
                    660:   obj_suffix=`echo "$object" | sed 's/^.*\././'`
                    661:   touch "$tmpdepfile"
                    662:   ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
                    663:   rm -f "$depfile"
                    664:   # makedepend may prepend the VPATH from the source file name to the object.
                    665:   # No need to regex-escape $object, excess matching of '.' is harmless.
                    666:   sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile"
                    667:   # Some versions of the HPUX 10.20 sed can't process the last invocation
                    668:   # correctly.  Breaking it into two sed invocations is a workaround.
                    669:   sed '1,2d' "$tmpdepfile" \
                    670:     | tr ' ' "$nl" \
                    671:     | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
                    672:     | sed -e 's/$/ :/' >> "$depfile"
                    673:   rm -f "$tmpdepfile" "$tmpdepfile".bak
                    674:   ;;
                    675: 
                    676: cpp)
                    677:   # Important note: in order to support this mode, a compiler *must*
                    678:   # always write the preprocessed file to stdout.
                    679:   "$@" || exit $?
                    680: 
                    681:   # Remove the call to Libtool.
                    682:   if test "$libtool" = yes; then
                    683:     while test "X$1" != 'X--mode=compile'; do
                    684:       shift
                    685:     done
                    686:     shift
                    687:   fi
                    688: 
                    689:   # Remove '-o $object'.
                    690:   IFS=" "
                    691:   for arg
                    692:   do
                    693:     case $arg in
                    694:     -o)
                    695:       shift
                    696:       ;;
                    697:     $object)
                    698:       shift
                    699:       ;;
                    700:     *)
                    701:       set fnord "$@" "$arg"
                    702:       shift # fnord
                    703:       shift # $arg
                    704:       ;;
                    705:     esac
                    706:   done
                    707: 
                    708:   "$@" -E \
                    709:     | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
                    710:              -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
                    711:     | sed '$ s: \\$::' > "$tmpdepfile"
                    712:   rm -f "$depfile"
                    713:   echo "$object : \\" > "$depfile"
                    714:   cat < "$tmpdepfile" >> "$depfile"
                    715:   sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
                    716:   rm -f "$tmpdepfile"
                    717:   ;;
                    718: 
                    719: msvisualcpp)
                    720:   # Important note: in order to support this mode, a compiler *must*
                    721:   # always write the preprocessed file to stdout.
                    722:   "$@" || exit $?
                    723: 
                    724:   # Remove the call to Libtool.
                    725:   if test "$libtool" = yes; then
                    726:     while test "X$1" != 'X--mode=compile'; do
                    727:       shift
                    728:     done
                    729:     shift
                    730:   fi
                    731: 
                    732:   IFS=" "
                    733:   for arg
                    734:   do
                    735:     case "$arg" in
                    736:     -o)
                    737:       shift
                    738:       ;;
                    739:     $object)
                    740:       shift
                    741:       ;;
                    742:     "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
                    743:         set fnord "$@"
                    744:         shift
                    745:         shift
                    746:         ;;
                    747:     *)
                    748:         set fnord "$@" "$arg"
                    749:         shift
                    750:         shift
                    751:         ;;
                    752:     esac
                    753:   done
                    754:   "$@" -E 2>/dev/null |
                    755:   sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
                    756:   rm -f "$depfile"
                    757:   echo "$object : \\" > "$depfile"
                    758:   sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile"
                    759:   echo "$tab" >> "$depfile"
                    760:   sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
                    761:   rm -f "$tmpdepfile"
                    762:   ;;
                    763: 
                    764: msvcmsys)
                    765:   # This case exists only to let depend.m4 do its work.  It works by
                    766:   # looking at the text of this script.  This case will never be run,
                    767:   # since it is checked for above.
                    768:   exit 1
                    769:   ;;
                    770: 
                    771: none)
                    772:   exec "$@"
                    773:   ;;
                    774: 
                    775: *)
                    776:   echo "Unknown depmode $depmode" 1>&2
                    777:   exit 1
                    778:   ;;
                    779: esac
                    780: 
                    781: exit 0
                    782: 
                    783: # Local Variables:
                    784: # mode: shell-script
                    785: # sh-indentation: 2
                    786: # eval: (add-hook 'write-file-hooks 'time-stamp)
                    787: # time-stamp-start: "scriptversion="
                    788: # time-stamp-format: "%:y-%02m-%02d.%02H"
                    789: # time-stamp-time-zone: "UTC"
                    790: # time-stamp-end: "; # UTC"
                    791: # End:

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