source: branches/autotools-update/Clp/depcomp @ 2351

Last change on this file since 2351 was 2310, checked in by lou, 21 months ago

Bring clp into the autotools-update world. Very rough. Builds and passes
unit test but non-doxygen documentation and examples are untested.

  • Property svn:executable set to *
File size: 21.9 KB
Line 
1#! /bin/sh
2# depcomp - compile a program generating dependencies as side-effects
3
4scriptversion=2013-05-30.07; # UTC
5
6# Copyright (C) 1999-2015 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
28case $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
35Usage: depcomp [--help] [--version] PROGRAM [ARGS]
36
37Run PROGRAMS ARGS to compile a file, generating dependencies
38as side-effects.
39
40Environment 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
49Report bugs to <bug-automake@gnu.org>.
50EOF
51    exit $?
52    ;;
53  -v | --v*)
54    echo "depcomp $scriptversion"
55    exit $?
56    ;;
57esac
58
59# Get the directory component of the given path, and save it in the
60# global variables '$dir'.  Note that this directory component will
61# be either empty or ending with a '/' character.  This is deliberate.
62set_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'.
72set_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.
80make_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.
87aix_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.
108tab='   '
109# A newline character.
110nl='
111'
112# Character ranges might be problematic outside the C locale.
113# These definitions help.
114upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ
115lower=abcdefghijklmnopqrstuvwxyz
116digits=0123456789
117alpha=${upper}${lower}
118
119if test -z "$depmode" || test -z "$source" || test -z "$object"; then
120  echo "depcomp: Variables source, object and depmode must be set" 1>&2
121  exit 1
122fi
123
124# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
125depfile=${depfile-`echo "$object" |
126  sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
127tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
128
129rm -f "$tmpdepfile"
130
131# Avoid interferences from the environment.
132gccflag= 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.
138if test "$depmode" = hp; then
139  # HP compiler uses -M and no extra arg.
140  gccflag=-M
141  depmode=gcc
142fi
143
144if test "$depmode" = dashXmstdout; then
145  # This is just like dashmstdout with a different argument.
146  dashmflag=-xM
147  depmode=dashmstdout
148fi
149
150cygpath_u="cygpath -u -f -"
151if test "$depmode" = msvcmsys; then
152  # This is just like msvisualcpp but w/o cygpath translation.
153  # Just convert the backslash-escaped backslashes to single forward
154  # slashes to satisfy depend.m4
155  cygpath_u='sed s,\\\\,/,g'
156  depmode=msvisualcpp
157fi
158
159if test "$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
165fi
166
167if test "$depmode" = xlc; then
168  # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information.
169  gccflag=-qmakedep=gcc,-MF
170  depmode=gcc
171fi
172
173case "$depmode" in
174gcc3)
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
200gcc)
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 "$tmpdepfile"
245  ;;
246
247hp)
248  # This case exists only to let depend.m4 do its work.  It works by
249  # looking at the text of this script.  This case will never be run,
250  # since it is checked for above.
251  exit 1
252  ;;
253
254xlc)
255  # This case exists only to let depend.m4 do its work.  It works by
256  # looking at the text of this script.  This case will never be run,
257  # since it is checked for above.
258  exit 1
259  ;;
260
261aix)
262  # The C for AIX Compiler uses -M and outputs the dependencies
263  # in a .u file.  In older versions, this file always lives in the
264  # current directory.  Also, the AIX compiler puts '$object:' at the
265  # start of each line; $object doesn't have directory information.
266  # Version 6 uses the directory in both cases.
267  set_dir_from "$object"
268  set_base_from "$object"
269  if test "$libtool" = yes; then
270    tmpdepfile1=$dir$base.u
271    tmpdepfile2=$base.u
272    tmpdepfile3=$dir.libs/$base.u
273    "$@" -Wc,-M
274  else
275    tmpdepfile1=$dir$base.u
276    tmpdepfile2=$dir$base.u
277    tmpdepfile3=$dir$base.u
278    "$@" -M
279  fi
280  stat=$?
281  if test $stat -ne 0; then
282    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
283    exit $stat
284  fi
285
286  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
287  do
288    test -f "$tmpdepfile" && break
289  done
290  aix_post_process_depfile
291  ;;
292
293tcc)
294  # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26
295  # FIXME: That version still under development at the moment of writing.
296  #        Make that this statement remains true also for stable, released
297  #        versions.
298  # It will wrap lines (doesn't matter whether long or short) with a
299  # trailing '\', as in:
300  #
301  #   foo.o : \
302  #    foo.c \
303  #    foo.h \
304  #
305  # It will put a trailing '\' even on the last line, and will use leading
306  # spaces rather than leading tabs (at least since its commit 0394caf7
307  # "Emit spaces for -MD").
308  "$@" -MD -MF "$tmpdepfile"
309  stat=$?
310  if test $stat -ne 0; then
311    rm -f "$tmpdepfile"
312    exit $stat
313  fi
314  rm -f "$depfile"
315  # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'.
316  # We have to change lines of the first kind to '$object: \'.
317  sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile"
318  # And for each line of the second kind, we have to emit a 'dep.h:'
319  # dummy dependency, to avoid the deleted-header problem.
320  sed -n -e 's|^  *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile"
321  rm -f "$tmpdepfile"
322  ;;
323
324## The order of this option in the case statement is important, since the
325## shell code in configure will try each of these formats in the order
326## listed in this file.  A plain '-MD' option would be understood by many
327## compilers, so we must ensure this comes after the gcc and icc options.
328pgcc)
329  # Portland's C compiler understands '-MD'.
330  # Will always output deps to 'file.d' where file is the root name of the
331  # source file under compilation, even if file resides in a subdirectory.
332  # The object file name does not affect the name of the '.d' file.
333  # pgcc 10.2 will output
334  #    foo.o: sub/foo.c sub/foo.h
335  # and will wrap long lines using '\' :
336  #    foo.o: sub/foo.c ... \
337  #     sub/foo.h ... \
338  #     ...
339  set_dir_from "$object"
340  # Use the source, not the object, to determine the base name, since
341  # that's sadly what pgcc will do too.
342  set_base_from "$source"
343  tmpdepfile=$base.d
344
345  # For projects that build the same source file twice into different object
346  # files, the pgcc approach of using the *source* file root name can cause
347  # problems in parallel builds.  Use a locking strategy to avoid stomping on
348  # the same $tmpdepfile.
349  lockdir=$base.d-lock
350  trap "
351    echo '$0: caught signal, cleaning up...' >&2
352    rmdir '$lockdir'
353    exit 1
354  " 1 2 13 15
355  numtries=100
356  i=$numtries
357  while test $i -gt 0; do
358    # mkdir is a portable test-and-set.
359    if mkdir "$lockdir" 2>/dev/null; then
360      # This process acquired the lock.
361      "$@" -MD
362      stat=$?
363      # Release the lock.
364      rmdir "$lockdir"
365      break
366    else
367      # If the lock is being held by a different process, wait
368      # until the winning process is done or we timeout.
369      while test -d "$lockdir" && test $i -gt 0; do
370        sleep 1
371        i=`expr $i - 1`
372      done
373    fi
374    i=`expr $i - 1`
375  done
376  trap - 1 2 13 15
377  if test $i -le 0; then
378    echo "$0: failed to acquire lock after $numtries attempts" >&2
379    echo "$0: check lockdir '$lockdir'" >&2
380    exit 1
381  fi
382
383  if test $stat -ne 0; then
384    rm -f "$tmpdepfile"
385    exit $stat
386  fi
387  rm -f "$depfile"
388  # Each line is of the form `foo.o: dependent.h',
389  # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
390  # Do two passes, one to just change these to
391  # `$object: dependent.h' and one to simply `dependent.h:'.
392  sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
393  # Some versions of the HPUX 10.20 sed can't process this invocation
394  # correctly.  Breaking it into two sed invocations is a workaround.
395  sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \
396    | sed -e 's/$/ :/' >> "$depfile"
397  rm -f "$tmpdepfile"
398  ;;
399
400hp2)
401  # The "hp" stanza above does not work with aCC (C++) and HP's ia64
402  # compilers, which have integrated preprocessors.  The correct option
403  # to use with these is +Maked; it writes dependencies to a file named
404  # 'foo.d', which lands next to the object file, wherever that
405  # happens to be.
406  # Much of this is similar to the tru64 case; see comments there.
407  set_dir_from  "$object"
408  set_base_from "$object"
409  if test "$libtool" = yes; then
410    tmpdepfile1=$dir$base.d
411    tmpdepfile2=$dir.libs/$base.d
412    "$@" -Wc,+Maked
413  else
414    tmpdepfile1=$dir$base.d
415    tmpdepfile2=$dir$base.d
416    "$@" +Maked
417  fi
418  stat=$?
419  if test $stat -ne 0; then
420     rm -f "$tmpdepfile1" "$tmpdepfile2"
421     exit $stat
422  fi
423
424  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
425  do
426    test -f "$tmpdepfile" && break
427  done
428  if test -f "$tmpdepfile"; then
429    sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile"
430    # Add 'dependent.h:' lines.
431    sed -ne '2,${
432               s/^ *//
433               s/ \\*$//
434               s/$/:/
435               p
436             }' "$tmpdepfile" >> "$depfile"
437  else
438    make_dummy_depfile
439  fi
440  rm -f "$tmpdepfile" "$tmpdepfile2"
441  ;;
442
443tru64)
444  # The Tru64 compiler uses -MD to generate dependencies as a side
445  # effect.  'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'.
446  # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
447  # dependencies in 'foo.d' instead, so we check for that too.
448  # Subdirectories are respected.
449  set_dir_from  "$object"
450  set_base_from "$object"
451
452  if test "$libtool" = yes; then
453    # Libtool generates 2 separate objects for the 2 libraries.  These
454    # two compilations output dependencies in $dir.libs/$base.o.d and
455    # in $dir$base.o.d.  We have to check for both files, because
456    # one of the two compilations can be disabled.  We should prefer
457    # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
458    # automatically cleaned when .libs/ is deleted, while ignoring
459    # the former would cause a distcleancheck panic.
460    tmpdepfile1=$dir$base.o.d          # libtool 1.5
461    tmpdepfile2=$dir.libs/$base.o.d    # Likewise.
462    tmpdepfile3=$dir.libs/$base.d      # Compaq CCC V6.2-504
463    "$@" -Wc,-MD
464  else
465    tmpdepfile1=$dir$base.d
466    tmpdepfile2=$dir$base.d
467    tmpdepfile3=$dir$base.d
468    "$@" -MD
469  fi
470
471  stat=$?
472  if test $stat -ne 0; then
473    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
474    exit $stat
475  fi
476
477  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
478  do
479    test -f "$tmpdepfile" && break
480  done
481  # Same post-processing that is required for AIX mode.
482  aix_post_process_depfile
483  ;;
484
485msvc7)
486  if test "$libtool" = yes; then
487    showIncludes=-Wc,-showIncludes
488  else
489    showIncludes=-showIncludes
490  fi
491  "$@" $showIncludes > "$tmpdepfile"
492  stat=$?
493  grep -v '^Note: including file: ' "$tmpdepfile"
494  if test $stat -ne 0; then
495    rm -f "$tmpdepfile"
496    exit $stat
497  fi
498  rm -f "$depfile"
499  echo "$object : \\" > "$depfile"
500  # The first sed program below extracts the file names and escapes
501  # backslashes for cygpath.  The second sed program outputs the file
502  # name when reading, but also accumulates all include files in the
503  # hold buffer in order to output them again at the end.  This only
504  # works with sed implementations that can handle large buffers.
505  sed < "$tmpdepfile" -n '
506/^Note: including file:  *\(.*\)/ {
507  s//\1/
508  s/\\/\\\\/g
509  p
510}' | $cygpath_u | sort -u | sed -n '
511s/ /\\ /g
512s/\(.*\)/'"$tab"'\1 \\/p
513s/.\(.*\) \\/\1:/
514H
515$ {
516  s/.*/'"$tab"'/
517  G
518  p
519}' >> "$depfile"
520  echo >> "$depfile" # make sure the fragment doesn't end with a backslash
521  rm -f "$tmpdepfile"
522  ;;
523
524msvc7msys)
525  # This case exists only to let depend.m4 do its work.  It works by
526  # looking at the text of this script.  This case will never be run,
527  # since it is checked for above.
528  exit 1
529  ;;
530
531#nosideeffect)
532  # This comment above is used by automake to tell side-effect
533  # dependency tracking mechanisms from slower ones.
534
535dashmstdout)
536  # Important note: in order to support this mode, a compiler *must*
537  # always write the preprocessed file to stdout, regardless of -o.
538  "$@" || exit $?
539
540  # Remove the call to Libtool.
541  if test "$libtool" = yes; then
542    while test "X$1" != 'X--mode=compile'; do
543      shift
544    done
545    shift
546  fi
547
548  # Remove '-o $object'.
549  IFS=" "
550  for arg
551  do
552    case $arg in
553    -o)
554      shift
555      ;;
556    $object)
557      shift
558      ;;
559    *)
560      set fnord "$@" "$arg"
561      shift # fnord
562      shift # $arg
563      ;;
564    esac
565  done
566
567  test -z "$dashmflag" && dashmflag=-M
568  # Require at least two characters before searching for ':'
569  # in the target name.  This is to cope with DOS-style filenames:
570  # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise.
571  "$@" $dashmflag |
572    sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile"
573  rm -f "$depfile"
574  cat < "$tmpdepfile" > "$depfile"
575  # Some versions of the HPUX 10.20 sed can't process this sed invocation
576  # correctly.  Breaking it into two sed invocations is a workaround.
577  tr ' ' "$nl" < "$tmpdepfile" \
578    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
579    | sed -e 's/$/ :/' >> "$depfile"
580  rm -f "$tmpdepfile"
581  ;;
582
583dashXmstdout)
584  # This case only exists to satisfy depend.m4.  It is never actually
585  # run, as this mode is specially recognized in the preamble.
586  exit 1
587  ;;
588
589makedepend)
590  "$@" || exit $?
591  # Remove any Libtool call
592  if test "$libtool" = yes; then
593    while test "X$1" != 'X--mode=compile'; do
594      shift
595    done
596    shift
597  fi
598  # X makedepend
599  shift
600  cleared=no eat=no
601  for arg
602  do
603    case $cleared in
604    no)
605      set ""; shift
606      cleared=yes ;;
607    esac
608    if test $eat = yes; then
609      eat=no
610      continue
611    fi
612    case "$arg" in
613    -D*|-I*)
614      set fnord "$@" "$arg"; shift ;;
615    # Strip any option that makedepend may not understand.  Remove
616    # the object too, otherwise makedepend will parse it as a source file.
617    -arch)
618      eat=yes ;;
619    -*|$object)
620      ;;
621    *)
622      set fnord "$@" "$arg"; shift ;;
623    esac
624  done
625  obj_suffix=`echo "$object" | sed 's/^.*\././'`
626  touch "$tmpdepfile"
627  ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
628  rm -f "$depfile"
629  # makedepend may prepend the VPATH from the source file name to the object.
630  # No need to regex-escape $object, excess matching of '.' is harmless.
631  sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile"
632  # Some versions of the HPUX 10.20 sed can't process the last invocation
633  # correctly.  Breaking it into two sed invocations is a workaround.
634  sed '1,2d' "$tmpdepfile" \
635    | tr ' ' "$nl" \
636    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
637    | sed -e 's/$/ :/' >> "$depfile"
638  rm -f "$tmpdepfile" "$tmpdepfile".bak
639  ;;
640
641cpp)
642  # Important note: in order to support this mode, a compiler *must*
643  # always write the preprocessed file to stdout.
644  "$@" || exit $?
645
646  # Remove the call to Libtool.
647  if test "$libtool" = yes; then
648    while test "X$1" != 'X--mode=compile'; do
649      shift
650    done
651    shift
652  fi
653
654  # Remove '-o $object'.
655  IFS=" "
656  for arg
657  do
658    case $arg in
659    -o)
660      shift
661      ;;
662    $object)
663      shift
664      ;;
665    *)
666      set fnord "$@" "$arg"
667      shift # fnord
668      shift # $arg
669      ;;
670    esac
671  done
672
673  "$@" -E \
674    | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
675             -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
676    | sed '$ s: \\$::' > "$tmpdepfile"
677  rm -f "$depfile"
678  echo "$object : \\" > "$depfile"
679  cat < "$tmpdepfile" >> "$depfile"
680  sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
681  rm -f "$tmpdepfile"
682  ;;
683
684msvisualcpp)
685  # Important note: in order to support this mode, a compiler *must*
686  # always write the preprocessed file to stdout.
687  "$@" || exit $?
688
689  # Remove the call to Libtool.
690  if test "$libtool" = yes; then
691    while test "X$1" != 'X--mode=compile'; do
692      shift
693    done
694    shift
695  fi
696
697  IFS=" "
698  for arg
699  do
700    case "$arg" in
701    -o)
702      shift
703      ;;
704    $object)
705      shift
706      ;;
707    "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
708        set fnord "$@"
709        shift
710        shift
711        ;;
712    *)
713        set fnord "$@" "$arg"
714        shift
715        shift
716        ;;
717    esac
718  done
719  "$@" -E 2>/dev/null |
720  sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
721  rm -f "$depfile"
722  echo "$object : \\" > "$depfile"
723  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile"
724  echo "$tab" >> "$depfile"
725  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
726  rm -f "$tmpdepfile"
727  ;;
728
729msvcmsys)
730  # This case exists only to let depend.m4 do its work.  It works by
731  # looking at the text of this script.  This case will never be run,
732  # since it is checked for above.
733  exit 1
734  ;;
735
736none)
737  exec "$@"
738  ;;
739
740*)
741  echo "Unknown depmode $depmode" 1>&2
742  exit 1
743  ;;
744esac
745
746exit 0
747
748# Local Variables:
749# mode: shell-script
750# sh-indentation: 2
751# eval: (add-hook 'write-file-hooks 'time-stamp)
752# time-stamp-start: "scriptversion="
753# time-stamp-format: "%:y-%02m-%02d.%02H"
754# time-stamp-time-zone: "UTC"
755# time-stamp-end: "; # UTC"
756# End:
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