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0 #! /bin/sh
1 # depcomp - compile a program generating dependencies as side-effects
2
3 scriptversion=2005-07-09.11
4
5 # Copyright (C) 1999, 2000, 2003, 2004, 2005 Free Software Foundation, Inc.
6
7 # This program is free software; you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation; either version 2, or (at your option)
10 # any later version.
11
12 # This program is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
16
17 # You should have received a copy of the GNU General Public License
18 # along with this program; if not, write to the Free Software
19 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
20 # 02110-1301, USA.
21
22 # As a special exception to the GNU General Public License, if you
23 # distribute this file as part of a program that contains a
24 # configuration script generated by Autoconf, you may include it under
25 # the same distribution terms that you use for the rest of that program.
26
27 # Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
28
29 case $1 in
30 '')
31 echo "$0: No command. Try \`$0 --help' for more information." 1>&2
32 exit 1;
33 ;;
34 -h | --h*)
35 cat <<\EOF
36 Usage: depcomp [--help] [--version] PROGRAM [ARGS]
37
38 Run PROGRAMS ARGS to compile a file, generating dependencies
39 as side-effects.
40
41 Environment variables:
42 depmode Dependency tracking mode.
43 source Source file read by `PROGRAMS ARGS'.
44 object Object file output by `PROGRAMS ARGS'.
45 DEPDIR directory where to store dependencies.
46 depfile Dependency file to output.
47 tmpdepfile Temporary file to use when outputing dependencies.
48 libtool Whether libtool is used (yes/no).
49
50 Report bugs to <bug-automake@gnu.org>.
51 EOF
52 exit $?
53 ;;
54 -v | --v*)
55 echo "depcomp $scriptversion"
56 exit $?
57 ;;
58 esac
59
60 if test -z "$depmode" || test -z "$source" || test -z "$object"; then
61 echo "depcomp: Variables source, object and depmode must be set" 1>&2
62 exit 1
63 fi
64
65 # Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
66 depfile=${depfile-`echo "$object" |
67 sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
68 tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
69
70 rm -f "$tmpdepfile"
71
72 # Some modes work just like other modes, but use different flags. We
73 # parameterize here, but still list the modes in the big case below,
74 # to make depend.m4 easier to write. Note that we *cannot* use a case
75 # here, because this file can only contain one case statement.
76 if test "$depmode" = hp; then
77 # HP compiler uses -M and no extra arg.
78 gccflag=-M
79 depmode=gcc
80 fi
81
82 if test "$depmode" = dashXmstdout; then
83 # This is just like dashmstdout with a different argument.
84 dashmflag=-xM
85 depmode=dashmstdout
86 fi
87
88 case "$depmode" in
89 gcc3)
90 ## gcc 3 implements dependency tracking that does exactly what
91 ## we want. Yay! Note: for some reason libtool 1.4 doesn't like
92 ## it if -MD -MP comes after the -MF stuff. Hmm.
93 "$@" -MT "$object" -MD -MP -MF "$tmpdepfile"
94 stat=$?
95 if test $stat -eq 0; then :
96 else
97 rm -f "$tmpdepfile"
98 exit $stat
99 fi
100 mv "$tmpdepfile" "$depfile"
101 ;;
102
103 gcc)
104 ## There are various ways to get dependency output from gcc. Here's
105 ## why we pick this rather obscure method:
106 ## - Don't want to use -MD because we'd like the dependencies to end
107 ## up in a subdir. Having to rename by hand is ugly.
108 ## (We might end up doing this anyway to support other compilers.)
109 ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
110 ## -MM, not -M (despite what the docs say).
111 ## - Using -M directly means running the compiler twice (even worse
112 ## than renaming).
113 if test -z "$gccflag"; then
114 gccflag=-MD,
115 fi
116 "$@" -Wp,"$gccflag$tmpdepfile"
117 stat=$?
118 if test $stat -eq 0; then :
119 else
120 rm -f "$tmpdepfile"
121 exit $stat
122 fi
123 rm -f "$depfile"
124 echo "$object : \\" > "$depfile"
125 alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
126 ## The second -e expression handles DOS-style file names with drive letters.
127 sed -e 's/^[^:]*: / /' \
128 -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
129 ## This next piece of magic avoids the `deleted header file' problem.
130 ## The problem is that when a header file which appears in a .P file
131 ## is deleted, the dependency causes make to die (because there is
132 ## typically no way to rebuild the header). We avoid this by adding
133 ## dummy dependencies for each header file. Too bad gcc doesn't do
134 ## this for us directly.
135 tr ' ' '
136 ' < "$tmpdepfile" |
137 ## Some versions of gcc put a space before the `:'. On the theory
138 ## that the space means something, we add a space to the output as
139 ## well.
140 ## Some versions of the HPUX 10.20 sed can't process this invocation
141 ## correctly. Breaking it into two sed invocations is a workaround.
142 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
143 rm -f "$tmpdepfile"
144 ;;
145
146 hp)
147 # This case exists only to let depend.m4 do its work. It works by
148 # looking at the text of this script. This case will never be run,
149 # since it is checked for above.
150 exit 1
151 ;;
152
153 sgi)
154 if test "$libtool" = yes; then
155 "$@" "-Wp,-MDupdate,$tmpdepfile"
156 else
157 "$@" -MDupdate "$tmpdepfile"
158 fi
159 stat=$?
160 if test $stat -eq 0; then :
161 else
162 rm -f "$tmpdepfile"
163 exit $stat
164 fi
165 rm -f "$depfile"
166
167 if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
168 echo "$object : \\" > "$depfile"
169
170 # Clip off the initial element (the dependent). Don't try to be
171 # clever and replace this with sed code, as IRIX sed won't handle
172 # lines with more than a fixed number of characters (4096 in
173 # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
174 # the IRIX cc adds comments like `#:fec' to the end of the
175 # dependency line.
176 tr ' ' '
177 ' < "$tmpdepfile" \
178 | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
179 tr '
180 ' ' ' >> $depfile
181 echo >> $depfile
182
183 # The second pass generates a dummy entry for each header file.
184 tr ' ' '
185 ' < "$tmpdepfile" \
186 | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
187 >> $depfile
188 else
189 # The sourcefile does not contain any dependencies, so just
190 # store a dummy comment line, to avoid errors with the Makefile
191 # "include basename.Plo" scheme.
192 echo "#dummy" > "$depfile"
193 fi
194 rm -f "$tmpdepfile"
195 ;;
196
197 aix)
198 # The C for AIX Compiler uses -M and outputs the dependencies
199 # in a .u file. In older versions, this file always lives in the
200 # current directory. Also, the AIX compiler puts `$object:' at the
201 # start of each line; $object doesn't have directory information.
202 # Version 6 uses the directory in both cases.
203 stripped=`echo "$object" | sed 's/\(.*\)\..*$/\1/'`
204 tmpdepfile="$stripped.u"
205 if test "$libtool" = yes; then
206 "$@" -Wc,-M
207 else
208 "$@" -M
209 fi
210 stat=$?
211
212 if test -f "$tmpdepfile"; then :
213 else
214 stripped=`echo "$stripped" | sed 's,^.*/,,'`
215 tmpdepfile="$stripped.u"
216 fi
217
218 if test $stat -eq 0; then :
219 else
220 rm -f "$tmpdepfile"
221 exit $stat
222 fi
223
224 if test -f "$tmpdepfile"; then
225 outname="$stripped.o"
226 # Each line is of the form `foo.o: dependent.h'.
227 # Do two passes, one to just change these to
228 # `$object: dependent.h' and one to simply `dependent.h:'.
229 sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile"
230 sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
231 else
232 # The sourcefile does not contain any dependencies, so just
233 # store a dummy comment line, to avoid errors with the Makefile
234 # "include basename.Plo" scheme.
235 echo "#dummy" > "$depfile"
236 fi
237 rm -f "$tmpdepfile"
238 ;;
239
240 icc)
241 # Intel's C compiler understands `-MD -MF file'. However on
242 # icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
243 # ICC 7.0 will fill foo.d with something like
244 # foo.o: sub/foo.c
245 # foo.o: sub/foo.h
246 # which is wrong. We want:
247 # sub/foo.o: sub/foo.c
248 # sub/foo.o: sub/foo.h
249 # sub/foo.c:
250 # sub/foo.h:
251 # ICC 7.1 will output
252 # foo.o: sub/foo.c sub/foo.h
253 # and will wrap long lines using \ :
254 # foo.o: sub/foo.c ... \
255 # sub/foo.h ... \
256 # ...
257
258 "$@" -MD -MF "$tmpdepfile"
259 stat=$?
260 if test $stat -eq 0; then :
261 else
262 rm -f "$tmpdepfile"
263 exit $stat
264 fi
265 rm -f "$depfile"
266 # Each line is of the form `foo.o: dependent.h',
267 # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
268 # Do two passes, one to just change these to
269 # `$object: dependent.h' and one to simply `dependent.h:'.
270 sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
271 # Some versions of the HPUX 10.20 sed can't process this invocation
272 # correctly. Breaking it into two sed invocations is a workaround.
273 sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
274 sed -e 's/$/ :/' >> "$depfile"
275 rm -f "$tmpdepfile"
276 ;;
277
278 tru64)
279 # The Tru64 compiler uses -MD to generate dependencies as a side
280 # effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
281 # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
282 # dependencies in `foo.d' instead, so we check for that too.
283 # Subdirectories are respected.
284 dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
285 test "x$dir" = "x$object" && dir=
286 base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
287
288 if test "$libtool" = yes; then
289 # With Tru64 cc, shared objects can also be used to make a
290 # static library. This mecanism is used in libtool 1.4 series to
291 # handle both shared and static libraries in a single compilation.
292 # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
293 #
294 # With libtool 1.5 this exception was removed, and libtool now
295 # generates 2 separate objects for the 2 libraries. These two
296 # compilations output dependencies in in $dir.libs/$base.o.d and
297 # in $dir$base.o.d. We have to check for both files, because
298 # one of the two compilations can be disabled. We should prefer
299 # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
300 # automatically cleaned when .libs/ is deleted, while ignoring
301 # the former would cause a distcleancheck panic.
302 tmpdepfile1=$dir.libs/$base.lo.d # libtool 1.4
303 tmpdepfile2=$dir$base.o.d # libtool 1.5
304 tmpdepfile3=$dir.libs/$base.o.d # libtool 1.5
305 tmpdepfile4=$dir.libs/$base.d # Compaq CCC V6.2-504
306 "$@" -Wc,-MD
307 else
308 tmpdepfile1=$dir$base.o.d
309 tmpdepfile2=$dir$base.d
310 tmpdepfile3=$dir$base.d
311 tmpdepfile4=$dir$base.d
312 "$@" -MD
313 fi
314
315 stat=$?
316 if test $stat -eq 0; then :
317 else
318 rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
319 exit $stat
320 fi
321
322 for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
323 do
324 test -f "$tmpdepfile" && break
325 done
326 if test -f "$tmpdepfile"; then
327 sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
328 # That's a tab and a space in the [].
329 sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
330 else
331 echo "#dummy" > "$depfile"
332 fi
333 rm -f "$tmpdepfile"
334 ;;
335
336 #nosideeffect)
337 # This comment above is used by automake to tell side-effect
338 # dependency tracking mechanisms from slower ones.
339
340 dashmstdout)
341 # Important note: in order to support this mode, a compiler *must*
342 # always write the preprocessed file to stdout, regardless of -o.
343 "$@" || exit $?
344
345 # Remove the call to Libtool.
346 if test "$libtool" = yes; then
347 while test $1 != '--mode=compile'; do
348 shift
349 done
350 shift
351 fi
352
353 # Remove `-o $object'.
354 IFS=" "
355 for arg
356 do
357 case $arg in
358 -o)
359 shift
360 ;;
361 $object)
362 shift
363 ;;
364 *)
365 set fnord "$@" "$arg"
366 shift # fnord
367 shift # $arg
368 ;;
369 esac
370 done
371
372 test -z "$dashmflag" && dashmflag=-M
373 # Require at least two characters before searching for `:'
374 # in the target name. This is to cope with DOS-style filenames:
375 # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
376 "$@" $dashmflag |
377 sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
378 rm -f "$depfile"
379 cat < "$tmpdepfile" > "$depfile"
380 tr ' ' '
381 ' < "$tmpdepfile" | \
382 ## Some versions of the HPUX 10.20 sed can't process this invocation
383 ## correctly. Breaking it into two sed invocations is a workaround.
384 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
385 rm -f "$tmpdepfile"
386 ;;
387
388 dashXmstdout)
389 # This case only exists to satisfy depend.m4. It is never actually
390 # run, as this mode is specially recognized in the preamble.
391 exit 1
392 ;;
393
394 makedepend)
395 "$@" || exit $?
396 # Remove any Libtool call
397 if test "$libtool" = yes; then
398 while test $1 != '--mode=compile'; do
399 shift
400 done
401 shift
402 fi
403 # X makedepend
404 shift
405 cleared=no
406 for arg in "$@"; do
407 case $cleared in
408 no)
409 set ""; shift
410 cleared=yes ;;
411 esac
412 case "$arg" in
413 -D*|-I*)
414 set fnord "$@" "$arg"; shift ;;
415 # Strip any option that makedepend may not understand. Remove
416 # the object too, otherwise makedepend will parse it as a source file.
417 -*|$object)
418 ;;
419 *)
420 set fnord "$@" "$arg"; shift ;;
421 esac
422 done
423 obj_suffix="`echo $object | sed 's/^.*\././'`"
424 touch "$tmpdepfile"
425 ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
426 rm -f "$depfile"
427 cat < "$tmpdepfile" > "$depfile"
428 sed '1,2d' "$tmpdepfile" | tr ' ' '
429 ' | \
430 ## Some versions of the HPUX 10.20 sed can't process this invocation
431 ## correctly. Breaking it into two sed invocations is a workaround.
432 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
433 rm -f "$tmpdepfile" "$tmpdepfile".bak
434 ;;
435
436 cpp)
437 # Important note: in order to support this mode, a compiler *must*
438 # always write the preprocessed file to stdout.
439 "$@" || exit $?
440
441 # Remove the call to Libtool.
442 if test "$libtool" = yes; then
443 while test $1 != '--mode=compile'; do
444 shift
445 done
446 shift
447 fi
448
449 # Remove `-o $object'.
450 IFS=" "
451 for arg
452 do
453 case $arg in
454 -o)
455 shift
456 ;;
457 $object)
458 shift
459 ;;
460 *)
461 set fnord "$@" "$arg"
462 shift # fnord
463 shift # $arg
464 ;;
465 esac
466 done
467
468 "$@" -E |
469 sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
470 -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
471 sed '$ s: \\$::' > "$tmpdepfile"
472 rm -f "$depfile"
473 echo "$object : \\" > "$depfile"
474 cat < "$tmpdepfile" >> "$depfile"
475 sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
476 rm -f "$tmpdepfile"
477 ;;
478
479 msvisualcpp)
480 # Important note: in order to support this mode, a compiler *must*
481 # always write the preprocessed file to stdout, regardless of -o,
482 # because we must use -o when running libtool.
483 "$@" || exit $?
484 IFS=" "
485 for arg
486 do
487 case "$arg" in
488 "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
489 set fnord "$@"
490 shift
491 shift
492 ;;
493 *)
494 set fnord "$@" "$arg"
495 shift
496 shift
497 ;;
498 esac
499 done
500 "$@" -E |
501 sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
502 rm -f "$depfile"
503 echo "$object : \\" > "$depfile"
504 . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile"
505 echo " " >> "$depfile"
506 . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
507 rm -f "$tmpdepfile"
508 ;;
509
510 none)
511 exec "$@"
512 ;;
513
514 *)
515 echo "Unknown depmode $depmode" 1>&2
516 exit 1
517 ;;
518 esac
519
520 exit 0
521
522 # Local Variables:
523 # mode: shell-script
524 # sh-indentation: 2
525 # eval: (add-hook 'write-file-hooks 'time-stamp)
526 # time-stamp-start: "scriptversion="
527 # time-stamp-format: "%:y-%02m-%02d.%02H"
528 # time-stamp-end: "$"
529 # End:
530