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1 #! /bin/sh
2 # depcomp - compile a program generating dependencies as side-effects
3
4 scriptversion=2006-10-15.18
5
6 # Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006 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 <oliva@dcc.unicamp.br>.
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 <bug-automake@gnu.org>.
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; $object doesn't have directory information.
217 # Version 6 uses the directory in both cases.
218 stripped=`echo "$object" | sed 's/\(.*\)\..*$/\1/'`
219 tmpdepfile="$stripped.u"
220 if test "$libtool" = yes; then
221 "$@" -Wc,-M
222 else
223 "$@" -M
224 fi
225 stat=$?
226
227 if test -f "$tmpdepfile"; then :
228 else
229 stripped=`echo "$stripped" | sed 's,^.*/,,'`
230 tmpdepfile="$stripped.u"
231 fi
232
233 if test $stat -eq 0; then :
234 else
235 rm -f "$tmpdepfile"
236 exit $stat
237 fi
238
239 if test -f "$tmpdepfile"; then
240 outname="$stripped.o"
241 # Each line is of the form `foo.o: dependent.h'.
242 # Do two passes, one to just change these to
243 # `$object: dependent.h' and one to simply `dependent.h:'.
244 sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile"
245 sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
246 else
247 # The sourcefile does not contain any dependencies, so just
248 # store a dummy comment line, to avoid errors with the Makefile
249 # "include basename.Plo" scheme.
250 echo "#dummy" > "$depfile"
251 fi
252 rm -f "$tmpdepfile"
253 ;;
254
255 icc)
256 # Intel's C compiler understands `-MD -MF file'. However on
257 # icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
258 # ICC 7.0 will fill foo.d with something like
259 # foo.o: sub/foo.c
260 # foo.o: sub/foo.h
261 # which is wrong. We want:
262 # sub/foo.o: sub/foo.c
263 # sub/foo.o: sub/foo.h
264 # sub/foo.c:
265 # sub/foo.h:
266 # ICC 7.1 will output
267 # foo.o: sub/foo.c sub/foo.h
268 # and will wrap long lines using \ :
269 # foo.o: sub/foo.c ... \
270 # sub/foo.h ... \
271 # ...
272
273 "$@" -MD -MF "$tmpdepfile"
274 stat=$?
275 if test $stat -eq 0; then :
276 else
277 rm -f "$tmpdepfile"
278 exit $stat
279 fi
280 rm -f "$depfile"
281 # Each line is of the form `foo.o: dependent.h',
282 # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
283 # Do two passes, one to just change these to
284 # `$object: dependent.h' and one to simply `dependent.h:'.
285 sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
286 # Some versions of the HPUX 10.20 sed can't process this invocation
287 # correctly. Breaking it into two sed invocations is a workaround.
288 sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
289 sed -e 's/$/ :/' >> "$depfile"
290 rm -f "$tmpdepfile"
291 ;;
292
293 hp2)
294 # The "hp" stanza above does not work with aCC (C++) and HP's ia64
295 # compilers, which have integrated preprocessors. The correct option
296 # to use with these is +Maked; it writes dependencies to a file named
297 # 'foo.d', which lands next to the object file, wherever that
298 # happens to be.
299 # Much of this is similar to the tru64 case; see comments there.
300 dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
301 test "x$dir" = "x$object" && dir=
302 base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
303 if test "$libtool" = yes; then
304 tmpdepfile1=$dir$base.d
305 tmpdepfile2=$dir.libs/$base.d
306 "$@" -Wc,+Maked
307 else
308 tmpdepfile1=$dir$base.d
309 tmpdepfile2=$dir$base.d
310 "$@" +Maked
311 fi
312 stat=$?
313 if test $stat -eq 0; then :
314 else
315 rm -f "$tmpdepfile1" "$tmpdepfile2"
316 exit $stat
317 fi
318
319 for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
320 do
321 test -f "$tmpdepfile" && break
322 done
323 if test -f "$tmpdepfile"; then
324 sed -e "s,^.*\.[a-z]*:,$object:," "$tmpdepfile" > "$depfile"
325 # Add `dependent.h:' lines.
326 sed -ne '2,${; s/^ *//; s/ \\*$//; s/$/:/; p;}' "$tmpdepfile" >> "$depfile"
327 else
328 echo "#dummy" > "$depfile"
329 fi
330 rm -f "$tmpdepfile" "$tmpdepfile2"
331 ;;
332
333 tru64)
334 # The Tru64 compiler uses -MD to generate dependencies as a side
335 # effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
336 # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
337 # dependencies in `foo.d' instead, so we check for that too.
338 # Subdirectories are respected.
339 dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
340 test "x$dir" = "x$object" && dir=
341 base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
342
343 if test "$libtool" = yes; then
344 # With Tru64 cc, shared objects can also be used to make a
345 # static library. This mechanism is used in libtool 1.4 series to
346 # handle both shared and static libraries in a single compilation.
347 # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
348 #
349 # With libtool 1.5 this exception was removed, and libtool now
350 # generates 2 separate objects for the 2 libraries. These two
351 # compilations output dependencies in $dir.libs/$base.o.d and
352 # in $dir$base.o.d. We have to check for both files, because
353 # one of the two compilations can be disabled. We should prefer
354 # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
355 # automatically cleaned when .libs/ is deleted, while ignoring
356 # the former would cause a distcleancheck panic.
357 tmpdepfile1=$dir.libs/$base.lo.d # libtool 1.4
358 tmpdepfile2=$dir$base.o.d # libtool 1.5
359 tmpdepfile3=$dir.libs/$base.o.d # libtool 1.5
360 tmpdepfile4=$dir.libs/$base.d # Compaq CCC V6.2-504
361 "$@" -Wc,-MD
362 else
363 tmpdepfile1=$dir$base.o.d
364 tmpdepfile2=$dir$base.d
365 tmpdepfile3=$dir$base.d
366 tmpdepfile4=$dir$base.d
367 "$@" -MD
368 fi
369
370 stat=$?
371 if test $stat -eq 0; then :
372 else
373 rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
374 exit $stat
375 fi
376
377 for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
378 do
379 test -f "$tmpdepfile" && break
380 done
381 if test -f "$tmpdepfile"; then
382 sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
383 # That's a tab and a space in the [].
384 sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
385 else
386 echo "#dummy" > "$depfile"
387 fi
388 rm -f "$tmpdepfile"
389 ;;
390
391 #nosideeffect)
392 # This comment above is used by automake to tell side-effect
393 # dependency tracking mechanisms from slower ones.
394
395 dashmstdout)
396 # Important note: in order to support this mode, a compiler *must*
397 # always write the preprocessed file to stdout, regardless of -o.
398 "$@" || exit $?
399
400 # Remove the call to Libtool.
401 if test "$libtool" = yes; then
402 while test $1 != '--mode=compile'; do
403 shift
404 done
405 shift
406 fi
407
408 # Remove `-o $object'.
409 IFS=" "
410 for arg
411 do
412 case $arg in
413 -o)
414 shift
415 ;;
416 $object)
417 shift
418 ;;
419 *)
420 set fnord "$@" "$arg"
421 shift # fnord
422 shift # $arg
423 ;;
424 esac
425 done
426
427 test -z "$dashmflag" && dashmflag=-M
428 # Require at least two characters before searching for `:'
429 # in the target name. This is to cope with DOS-style filenames:
430 # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
431 "$@" $dashmflag |
432 sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
433 rm -f "$depfile"
434 cat < "$tmpdepfile" > "$depfile"
435 tr ' ' '
436 ' < "$tmpdepfile" | \
437 ## Some versions of the HPUX 10.20 sed can't process this invocation
438 ## correctly. Breaking it into two sed invocations is a workaround.
439 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
440 rm -f "$tmpdepfile"
441 ;;
442
443 dashXmstdout)
444 # This case only exists to satisfy depend.m4. It is never actually
445 # run, as this mode is specially recognized in the preamble.
446 exit 1
447 ;;
448
449 makedepend)
450 "$@" || exit $?
451 # Remove any Libtool call
452 if test "$libtool" = yes; then
453 while test $1 != '--mode=compile'; do
454 shift
455 done
456 shift
457 fi
458 # X makedepend
459 shift
460 cleared=no
461 for arg in "$@"; do
462 case $cleared in
463 no)
464 set ""; shift
465 cleared=yes ;;
466 esac
467 case "$arg" in
468 -D*|-I*)
469 set fnord "$@" "$arg"; shift ;;
470 # Strip any option that makedepend may not understand. Remove
471 # the object too, otherwise makedepend will parse it as a source file.
472 -*|$object)
473 ;;
474 *)
475 set fnord "$@" "$arg"; shift ;;
476 esac
477 done
478 obj_suffix="`echo $object | sed 's/^.*\././'`"
479 touch "$tmpdepfile"
480 ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
481 rm -f "$depfile"
482 cat < "$tmpdepfile" > "$depfile"
483 sed '1,2d' "$tmpdepfile" | tr ' ' '
484 ' | \
485 ## Some versions of the HPUX 10.20 sed can't process this invocation
486 ## correctly. Breaking it into two sed invocations is a workaround.
487 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
488 rm -f "$tmpdepfile" "$tmpdepfile".bak
489 ;;
490
491 cpp)
492 # Important note: in order to support this mode, a compiler *must*
493 # always write the preprocessed file to stdout.
494 "$@" || exit $?
495
496 # Remove the call to Libtool.
497 if test "$libtool" = yes; then
498 while test $1 != '--mode=compile'; do
499 shift
500 done
501 shift
502 fi
503
504 # Remove `-o $object'.
505 IFS=" "
506 for arg
507 do
508 case $arg in
509 -o)
510 shift
511 ;;
512 $object)
513 shift
514 ;;
515 *)
516 set fnord "$@" "$arg"
517 shift # fnord
518 shift # $arg
519 ;;
520 esac
521 done
522
523 "$@" -E |
524 sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
525 -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
526 sed '$ s: \\$::' > "$tmpdepfile"
527 rm -f "$depfile"
528 echo "$object : \\" > "$depfile"
529 cat < "$tmpdepfile" >> "$depfile"
530 sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
531 rm -f "$tmpdepfile"
532 ;;
533
534 msvisualcpp)
535 # Important note: in order to support this mode, a compiler *must*
536 # always write the preprocessed file to stdout, regardless of -o,
537 # because we must use -o when running libtool.
538 "$@" || exit $?
539 IFS=" "
540 for arg
541 do
542 case "$arg" in
543 "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
544 set fnord "$@"
545 shift
546 shift
547 ;;
548 *)
549 set fnord "$@" "$arg"
550 shift
551 shift
552 ;;
553 esac
554 done
555 "$@" -E |
556 sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
557 rm -f "$depfile"
558 echo "$object : \\" > "$depfile"
559 . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile"
560 echo " " >> "$depfile"
561 . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
562 rm -f "$tmpdepfile"
563 ;;
564
565 none)
566 exec "$@"
567 ;;
568
569 *)
570 echo "Unknown depmode $depmode" 1>&2
571 exit 1
572 ;;
573 esac
574
575 exit 0
576
577 # Local Variables:
578 # mode: shell-script
579 # sh-indentation: 2
580 # eval: (add-hook 'write-file-hooks 'time-stamp)
581 # time-stamp-start: "scriptversion="
582 # time-stamp-format: "%:y-%02m-%02d.%02H"
583 # time-stamp-end: "$"
584 # End:
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