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1 19 jeremybenn
#! /bin/sh
2
# depcomp - compile a program generating dependencies as side-effects
3
 
4
scriptversion=2007-03-29.01
5
 
6
# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007 Free Software
7
# Foundation, Inc.
8
 
9
# This program is free software; you can redistribute it and/or modify
10
# it under the terms of the GNU General Public License as published by
11
# the Free Software Foundation; either version 2, or (at your option)
12
# any later version.
13
 
14
# This program is distributed in the hope that it will be useful,
15
# but WITHOUT ANY WARRANTY; without even the implied warranty of
16
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17
# GNU General Public License for more details.
18
 
19
# You should have received a copy of the GNU General Public License
20
# along with this program; if not, write to the Free Software
21
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
22
# 02110-1301, USA.
23
 
24
# As a special exception to the GNU General Public License, if you
25
# distribute this file as part of a program that contains a
26
# configuration script generated by Autoconf, you may include it under
27
# the same distribution terms that you use for the rest of that program.
28
 
29
# Originally written by Alexandre Oliva .
30
 
31
case $1 in
32
  '')
33
     echo "$0: No command.  Try \`$0 --help' for more information." 1>&2
34
     exit 1;
35
     ;;
36
  -h | --h*)
37
    cat <<\EOF
38
Usage: depcomp [--help] [--version] PROGRAM [ARGS]
39
 
40
Run PROGRAMS ARGS to compile a file, generating dependencies
41
as side-effects.
42
 
43
Environment variables:
44
  depmode     Dependency tracking mode.
45
  source      Source file read by `PROGRAMS ARGS'.
46
  object      Object file output by `PROGRAMS ARGS'.
47
  DEPDIR      directory where to store dependencies.
48
  depfile     Dependency file to output.
49
  tmpdepfile  Temporary file to use when outputing dependencies.
50
  libtool     Whether libtool is used (yes/no).
51
 
52
Report bugs to .
53
EOF
54
    exit $?
55
    ;;
56
  -v | --v*)
57
    echo "depcomp $scriptversion"
58
    exit $?
59
    ;;
60
esac
61
 
62
if test -z "$depmode" || test -z "$source" || test -z "$object"; then
63
  echo "depcomp: Variables source, object and depmode must be set" 1>&2
64
  exit 1
65
fi
66
 
67
# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
68
depfile=${depfile-`echo "$object" |
69
  sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
70
tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
71
 
72
rm -f "$tmpdepfile"
73
 
74
# Some modes work just like other modes, but use different flags.  We
75
# parameterize here, but still list the modes in the big case below,
76
# to make depend.m4 easier to write.  Note that we *cannot* use a case
77
# here, because this file can only contain one case statement.
78
if test "$depmode" = hp; then
79
  # HP compiler uses -M and no extra arg.
80
  gccflag=-M
81
  depmode=gcc
82
fi
83
 
84
if test "$depmode" = dashXmstdout; then
85
   # This is just like dashmstdout with a different argument.
86
   dashmflag=-xM
87
   depmode=dashmstdout
88
fi
89
 
90
case "$depmode" in
91
gcc3)
92
## gcc 3 implements dependency tracking that does exactly what
93
## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
94
## it if -MD -MP comes after the -MF stuff.  Hmm.
95
## Unfortunately, FreeBSD c89 acceptance of flags depends upon
96
## the command line argument order; so add the flags where they
97
## appear in depend2.am.  Note that the slowdown incurred here
98
## affects only configure: in makefiles, %FASTDEP% shortcuts this.
99
  for arg
100
  do
101
    case $arg in
102
    -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
103
    *)  set fnord "$@" "$arg" ;;
104
    esac
105
    shift # fnord
106
    shift # $arg
107
  done
108
  "$@"
109
  stat=$?
110
  if test $stat -eq 0; then :
111
  else
112
    rm -f "$tmpdepfile"
113
    exit $stat
114
  fi
115
  mv "$tmpdepfile" "$depfile"
116
  ;;
117
 
118
gcc)
119
## There are various ways to get dependency output from gcc.  Here's
120
## why we pick this rather obscure method:
121
## - Don't want to use -MD because we'd like the dependencies to end
122
##   up in a subdir.  Having to rename by hand is ugly.
123
##   (We might end up doing this anyway to support other compilers.)
124
## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
125
##   -MM, not -M (despite what the docs say).
126
## - Using -M directly means running the compiler twice (even worse
127
##   than renaming).
128
  if test -z "$gccflag"; then
129
    gccflag=-MD,
130
  fi
131
  "$@" -Wp,"$gccflag$tmpdepfile"
132
  stat=$?
133
  if test $stat -eq 0; then :
134
  else
135
    rm -f "$tmpdepfile"
136
    exit $stat
137
  fi
138
  rm -f "$depfile"
139
  echo "$object : \\" > "$depfile"
140
  alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
141
## The second -e expression handles DOS-style file names with drive letters.
142
  sed -e 's/^[^:]*: / /' \
143
      -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
144
## This next piece of magic avoids the `deleted header file' problem.
145
## The problem is that when a header file which appears in a .P file
146
## is deleted, the dependency causes make to die (because there is
147
## typically no way to rebuild the header).  We avoid this by adding
148
## dummy dependencies for each header file.  Too bad gcc doesn't do
149
## this for us directly.
150
  tr ' ' '
151
' < "$tmpdepfile" |
152
## Some versions of gcc put a space before the `:'.  On the theory
153
## that the space means something, we add a space to the output as
154
## well.
155
## Some versions of the HPUX 10.20 sed can't process this invocation
156
## correctly.  Breaking it into two sed invocations is a workaround.
157
    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
158
  rm -f "$tmpdepfile"
159
  ;;
160
 
161
hp)
162
  # This case exists only to let depend.m4 do its work.  It works by
163
  # looking at the text of this script.  This case will never be run,
164
  # since it is checked for above.
165
  exit 1
166
  ;;
167
 
168
sgi)
169
  if test "$libtool" = yes; then
170
    "$@" "-Wp,-MDupdate,$tmpdepfile"
171
  else
172
    "$@" -MDupdate "$tmpdepfile"
173
  fi
174
  stat=$?
175
  if test $stat -eq 0; then :
176
  else
177
    rm -f "$tmpdepfile"
178
    exit $stat
179
  fi
180
  rm -f "$depfile"
181
 
182
  if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
183
    echo "$object : \\" > "$depfile"
184
 
185
    # Clip off the initial element (the dependent).  Don't try to be
186
    # clever and replace this with sed code, as IRIX sed won't handle
187
    # lines with more than a fixed number of characters (4096 in
188
    # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
189
    # the IRIX cc adds comments like `#:fec' to the end of the
190
    # dependency line.
191
    tr ' ' '
192
' < "$tmpdepfile" \
193
    | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
194
    tr '
195
' ' ' >> $depfile
196
    echo >> $depfile
197
 
198
    # The second pass generates a dummy entry for each header file.
199
    tr ' ' '
200
' < "$tmpdepfile" \
201
   | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
202
   >> $depfile
203
  else
204
    # The sourcefile does not contain any dependencies, so just
205
    # store a dummy comment line, to avoid errors with the Makefile
206
    # "include basename.Plo" scheme.
207
    echo "#dummy" > "$depfile"
208
  fi
209
  rm -f "$tmpdepfile"
210
  ;;
211
 
212
aix)
213
  # The C for AIX Compiler uses -M and outputs the dependencies
214
  # in a .u file.  In older versions, this file always lives in the
215
  # current directory.  Also, the AIX compiler puts `$object:' at the
216
  # start of each line; $object doesn't have directory information.
217
  # Version 6 uses the directory in both cases.
218
  dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
219
  test "x$dir" = "x$object" && dir=
220
  base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
221
  if test "$libtool" = yes; then
222
    tmpdepfile1=$dir$base.u
223
    tmpdepfile2=$base.u
224
    tmpdepfile3=$dir.libs/$base.u
225
    "$@" -Wc,-M
226
  else
227
    tmpdepfile1=$dir$base.u
228
    tmpdepfile2=$dir$base.u
229
    tmpdepfile3=$dir$base.u
230
    "$@" -M
231
  fi
232
  stat=$?
233
 
234
  if test $stat -eq 0; then :
235
  else
236
    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
237
    exit $stat
238
  fi
239
 
240
  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
241
  do
242
    test -f "$tmpdepfile" && break
243
  done
244
  if test -f "$tmpdepfile"; then
245
    # Each line is of the form `foo.o: dependent.h'.
246
    # Do two passes, one to just change these to
247
    # `$object: dependent.h' and one to simply `dependent.h:'.
248
    sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
249
    # That's a tab and a space in the [].
250
    sed -e 's,^.*\.[a-z]*:[      ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
251
  else
252
    # The sourcefile does not contain any dependencies, so just
253
    # store a dummy comment line, to avoid errors with the Makefile
254
    # "include basename.Plo" scheme.
255
    echo "#dummy" > "$depfile"
256
  fi
257
  rm -f "$tmpdepfile"
258
  ;;
259
 
260
icc)
261
  # Intel's C compiler understands `-MD -MF file'.  However on
262
  #    icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
263
  # ICC 7.0 will fill foo.d with something like
264
  #    foo.o: sub/foo.c
265
  #    foo.o: sub/foo.h
266
  # which is wrong.  We want:
267
  #    sub/foo.o: sub/foo.c
268
  #    sub/foo.o: sub/foo.h
269
  #    sub/foo.c:
270
  #    sub/foo.h:
271
  # ICC 7.1 will output
272
  #    foo.o: sub/foo.c sub/foo.h
273
  # and will wrap long lines using \ :
274
  #    foo.o: sub/foo.c ... \
275
  #     sub/foo.h ... \
276
  #     ...
277
 
278
  "$@" -MD -MF "$tmpdepfile"
279
  stat=$?
280
  if test $stat -eq 0; then :
281
  else
282
    rm -f "$tmpdepfile"
283
    exit $stat
284
  fi
285
  rm -f "$depfile"
286
  # Each line is of the form `foo.o: dependent.h',
287
  # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
288
  # Do two passes, one to just change these to
289
  # `$object: dependent.h' and one to simply `dependent.h:'.
290
  sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
291
  # Some versions of the HPUX 10.20 sed can't process this invocation
292
  # correctly.  Breaking it into two sed invocations is a workaround.
293
  sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
294
    sed -e 's/$/ :/' >> "$depfile"
295
  rm -f "$tmpdepfile"
296
  ;;
297
 
298
hp2)
299
  # The "hp" stanza above does not work with aCC (C++) and HP's ia64
300
  # compilers, which have integrated preprocessors.  The correct option
301
  # to use with these is +Maked; it writes dependencies to a file named
302
  # 'foo.d', which lands next to the object file, wherever that
303
  # happens to be.
304
  # Much of this is similar to the tru64 case; see comments there.
305
  dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
306
  test "x$dir" = "x$object" && dir=
307
  base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
308
  if test "$libtool" = yes; then
309
    tmpdepfile1=$dir$base.d
310
    tmpdepfile2=$dir.libs/$base.d
311
    "$@" -Wc,+Maked
312
  else
313
    tmpdepfile1=$dir$base.d
314
    tmpdepfile2=$dir$base.d
315
    "$@" +Maked
316
  fi
317
  stat=$?
318
  if test $stat -eq 0; then :
319
  else
320
     rm -f "$tmpdepfile1" "$tmpdepfile2"
321
     exit $stat
322
  fi
323
 
324
  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
325
  do
326
    test -f "$tmpdepfile" && break
327
  done
328
  if test -f "$tmpdepfile"; then
329
    sed -e "s,^.*\.[a-z]*:,$object:," "$tmpdepfile" > "$depfile"
330
    # Add `dependent.h:' lines.
331
    sed -ne '2,${; s/^ *//; s/ \\*$//; s/$/:/; p;}' "$tmpdepfile" >> "$depfile"
332
  else
333
    echo "#dummy" > "$depfile"
334
  fi
335
  rm -f "$tmpdepfile" "$tmpdepfile2"
336
  ;;
337
 
338
tru64)
339
   # The Tru64 compiler uses -MD to generate dependencies as a side
340
   # effect.  `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
341
   # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
342
   # dependencies in `foo.d' instead, so we check for that too.
343
   # Subdirectories are respected.
344
   dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
345
   test "x$dir" = "x$object" && dir=
346
   base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
347
 
348
   if test "$libtool" = yes; then
349
      # With Tru64 cc, shared objects can also be used to make a
350
      # static library.  This mechanism is used in libtool 1.4 series to
351
      # handle both shared and static libraries in a single compilation.
352
      # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
353
      #
354
      # With libtool 1.5 this exception was removed, and libtool now
355
      # generates 2 separate objects for the 2 libraries.  These two
356
      # compilations output dependencies in $dir.libs/$base.o.d and
357
      # in $dir$base.o.d.  We have to check for both files, because
358
      # one of the two compilations can be disabled.  We should prefer
359
      # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
360
      # automatically cleaned when .libs/ is deleted, while ignoring
361
      # the former would cause a distcleancheck panic.
362
      tmpdepfile1=$dir.libs/$base.lo.d   # libtool 1.4
363
      tmpdepfile2=$dir$base.o.d          # libtool 1.5
364
      tmpdepfile3=$dir.libs/$base.o.d    # libtool 1.5
365
      tmpdepfile4=$dir.libs/$base.d      # Compaq CCC V6.2-504
366
      "$@" -Wc,-MD
367
   else
368
      tmpdepfile1=$dir$base.o.d
369
      tmpdepfile2=$dir$base.d
370
      tmpdepfile3=$dir$base.d
371
      tmpdepfile4=$dir$base.d
372
      "$@" -MD
373
   fi
374
 
375
   stat=$?
376
   if test $stat -eq 0; then :
377
   else
378
      rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
379
      exit $stat
380
   fi
381
 
382
   for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
383
   do
384
     test -f "$tmpdepfile" && break
385
   done
386
   if test -f "$tmpdepfile"; then
387
      sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
388
      # That's a tab and a space in the [].
389
      sed -e 's,^.*\.[a-z]*:[    ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
390
   else
391
      echo "#dummy" > "$depfile"
392
   fi
393
   rm -f "$tmpdepfile"
394
   ;;
395
 
396
#nosideeffect)
397
  # This comment above is used by automake to tell side-effect
398
  # dependency tracking mechanisms from slower ones.
399
 
400
dashmstdout)
401
  # Important note: in order to support this mode, a compiler *must*
402
  # always write the preprocessed file to stdout, regardless of -o.
403
  "$@" || exit $?
404
 
405
  # Remove the call to Libtool.
406
  if test "$libtool" = yes; then
407
    while test $1 != '--mode=compile'; do
408
      shift
409
    done
410
    shift
411
  fi
412
 
413
  # Remove `-o $object'.
414
  IFS=" "
415
  for arg
416
  do
417
    case $arg in
418
    -o)
419
      shift
420
      ;;
421
    $object)
422
      shift
423
      ;;
424
    *)
425
      set fnord "$@" "$arg"
426
      shift # fnord
427
      shift # $arg
428
      ;;
429
    esac
430
  done
431
 
432
  test -z "$dashmflag" && dashmflag=-M
433
  # Require at least two characters before searching for `:'
434
  # in the target name.  This is to cope with DOS-style filenames:
435
  # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
436
  "$@" $dashmflag |
437
    sed 's:^[  ]*[^: ][^:][^:]*\:[    ]*:'"$object"'\: :' > "$tmpdepfile"
438
  rm -f "$depfile"
439
  cat < "$tmpdepfile" > "$depfile"
440
  tr ' ' '
441
' < "$tmpdepfile" | \
442
## Some versions of the HPUX 10.20 sed can't process this invocation
443
## correctly.  Breaking it into two sed invocations is a workaround.
444
    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
445
  rm -f "$tmpdepfile"
446
  ;;
447
 
448
dashXmstdout)
449
  # This case only exists to satisfy depend.m4.  It is never actually
450
  # run, as this mode is specially recognized in the preamble.
451
  exit 1
452
  ;;
453
 
454
makedepend)
455
  "$@" || exit $?
456
  # Remove any Libtool call
457
  if test "$libtool" = yes; then
458
    while test $1 != '--mode=compile'; do
459
      shift
460
    done
461
    shift
462
  fi
463
  # X makedepend
464
  shift
465
  cleared=no
466
  for arg in "$@"; do
467
    case $cleared in
468
    no)
469
      set ""; shift
470
      cleared=yes ;;
471
    esac
472
    case "$arg" in
473
    -D*|-I*)
474
      set fnord "$@" "$arg"; shift ;;
475
    # Strip any option that makedepend may not understand.  Remove
476
    # the object too, otherwise makedepend will parse it as a source file.
477
    -*|$object)
478
      ;;
479
    *)
480
      set fnord "$@" "$arg"; shift ;;
481
    esac
482
  done
483
  obj_suffix="`echo $object | sed 's/^.*\././'`"
484
  touch "$tmpdepfile"
485
  ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
486
  rm -f "$depfile"
487
  cat < "$tmpdepfile" > "$depfile"
488
  sed '1,2d' "$tmpdepfile" | tr ' ' '
489
' | \
490
## Some versions of the HPUX 10.20 sed can't process this invocation
491
## correctly.  Breaking it into two sed invocations is a workaround.
492
    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
493
  rm -f "$tmpdepfile" "$tmpdepfile".bak
494
  ;;
495
 
496
cpp)
497
  # Important note: in order to support this mode, a compiler *must*
498
  # always write the preprocessed file to stdout.
499
  "$@" || exit $?
500
 
501
  # Remove the call to Libtool.
502
  if test "$libtool" = yes; then
503
    while test $1 != '--mode=compile'; do
504
      shift
505
    done
506
    shift
507
  fi
508
 
509
  # Remove `-o $object'.
510
  IFS=" "
511
  for arg
512
  do
513
    case $arg in
514
    -o)
515
      shift
516
      ;;
517
    $object)
518
      shift
519
      ;;
520
    *)
521
      set fnord "$@" "$arg"
522
      shift # fnord
523
      shift # $arg
524
      ;;
525
    esac
526
  done
527
 
528
  "$@" -E |
529
    sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
530
       -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
531
    sed '$ s: \\$::' > "$tmpdepfile"
532
  rm -f "$depfile"
533
  echo "$object : \\" > "$depfile"
534
  cat < "$tmpdepfile" >> "$depfile"
535
  sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
536
  rm -f "$tmpdepfile"
537
  ;;
538
 
539
msvisualcpp)
540
  # Important note: in order to support this mode, a compiler *must*
541
  # always write the preprocessed file to stdout, regardless of -o,
542
  # because we must use -o when running libtool.
543
  "$@" || exit $?
544
  IFS=" "
545
  for arg
546
  do
547
    case "$arg" in
548
    "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
549
        set fnord "$@"
550
        shift
551
        shift
552
        ;;
553
    *)
554
        set fnord "$@" "$arg"
555
        shift
556
        shift
557
        ;;
558
    esac
559
  done
560
  "$@" -E |
561
  sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
562
  rm -f "$depfile"
563
  echo "$object : \\" > "$depfile"
564
  . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::    \1 \\:p' >> "$depfile"
565
  echo "        " >> "$depfile"
566
  . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
567
  rm -f "$tmpdepfile"
568
  ;;
569
 
570
none)
571
  exec "$@"
572
  ;;
573
 
574
*)
575
  echo "Unknown depmode $depmode" 1>&2
576
  exit 1
577
  ;;
578
esac
579
 
580
exit 0
581
 
582
# Local Variables:
583
# mode: shell-script
584
# sh-indentation: 2
585
# eval: (add-hook 'write-file-hooks 'time-stamp)
586
# time-stamp-start: "scriptversion="
587
# time-stamp-format: "%:y-%02m-%02d.%02H"
588
# time-stamp-end: "$"
589
# End:

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