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