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Tina6/tina-libs/depcomp

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  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) 1999-2013 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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