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1 #! /bin/sh
2 # depcomp - compile a program generating dependencies as side-effects
3
4 scriptversion=2004-05-31.23
5
6 # Copyright (C) 1999, 2000, 2003, 2004 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., 59 Temple Place - Suite 330, Boston, MA
21 # 02111-1307, 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 0
54 ;;
55 -v | --v*)
56 echo "depcomp $scriptversion"
57 exit 0
58 ;;
59 esac
60
61 if test -z "$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 # Dependencies are output in .lo.d with libtool 1.4.
291 # With libtool 1.5 they are output both in $dir.libs/$base.o.d
292 # and in $dir.libs/$base.o.d and $dir$base.o.d. We process the
293 # latter, because the former will be cleaned when $dir.libs is
294 # erased.
295 tmpdepfile1="$dir.libs/$base.lo.d"
296 tmpdepfile2="$dir$base.o.d"
297 tmpdepfile3="$dir.libs/$base.d"
298 "$@" -Wc,-MD
299 else
300 tmpdepfile1="$dir$base.o.d"
301 tmpdepfile2="$dir$base.d"
302 tmpdepfile3="$dir$base.d"
303 "$@" -MD
304 fi
305
306 stat=$?
307 if test $stat -eq 0; then :
308 else
309 rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
310 exit $stat
311 fi
312
313 if test -f "$tmpdepfile1"; then
314 tmpdepfile="$tmpdepfile1"
315 elif test -f "$tmpdepfile2"; then
316 tmpdepfile="$tmpdepfile2"
317 else
318 tmpdepfile="$tmpdepfile3"
319 fi
320 if test -f "$tmpdepfile"; then
321 sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
322 # That's a tab and a space in the [].
323 sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
324 else
325 echo "#dummy" > "$depfile"
326 fi
327 rm -f "$tmpdepfile"
328 ;;
329
330 #nosideeffect)
331 # This comment above is used by automake to tell side-effect
332 # dependency tracking mechanisms from slower ones.
333
334 dashmstdout)
335 # Important note: in order to support this mode, a compiler *must*
336 # always write the preprocessed file to stdout, regardless of -o.
337 "$@" || exit $?
338
339 # Remove the call to Libtool.
340 if test "$libtool" = yes; then
341 while test $1 != '--mode=compile'; do
342 shift
343 done
344 shift
345 fi
346
347 # Remove `-o $object'.
348 IFS=" "
349 for arg
350 do
351 case $arg in
352 -o)
353 shift
354 ;;
355 $object)
356 shift
357 ;;
358 *)
359 set fnord "$@" "$arg"
360 shift # fnord
361 shift # $arg
362 ;;
363 esac
364 done
365
366 test -z "$dashmflag" && dashmflag=-M
367 # Require at least two characters before searching for `:'
368 # in the target name. This is to cope with DOS-style filenames:
369 # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
370 "$@" $dashmflag |
371 sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
372 rm -f "$depfile"
373 cat < "$tmpdepfile" > "$depfile"
374 tr ' ' '
375 ' < "$tmpdepfile" | \
376 ## Some versions of the HPUX 10.20 sed can't process this invocation
377 ## correctly. Breaking it into two sed invocations is a workaround.
378 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
379 rm -f "$tmpdepfile"
380 ;;
381
382 dashXmstdout)
383 # This case only exists to satisfy depend.m4. It is never actually
384 # run, as this mode is specially recognized in the preamble.
385 exit 1
386 ;;
387
388 makedepend)
389 "$@" || exit $?
390 # Remove any Libtool call
391 if test "$libtool" = yes; then
392 while test $1 != '--mode=compile'; do
393 shift
394 done
395 shift
396 fi
397 # X makedepend
398 shift
399 cleared=no
400 for arg in "$@"; do
401 case $cleared in
402 no)
403 set ""; shift
404 cleared=yes ;;
405 esac
406 case "$arg" in
407 -D*|-I*)
408 set fnord "$@" "$arg"; shift ;;
409 # Strip any option that makedepend may not understand. Remove
410 # the object too, otherwise makedepend will parse it as a source file.
411 -*|$object)
412 ;;
413 *)
414 set fnord "$@" "$arg"; shift ;;
415 esac
416 done
417 obj_suffix="`echo $object | sed 's/^.*\././'`"
418 touch "$tmpdepfile"
419 ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
420 rm -f "$depfile"
421 cat < "$tmpdepfile" > "$depfile"
422 sed '1,2d' "$tmpdepfile" | tr ' ' '
423 ' | \
424 ## Some versions of the HPUX 10.20 sed can't process this invocation
425 ## correctly. Breaking it into two sed invocations is a workaround.
426 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
427 rm -f "$tmpdepfile" "$tmpdepfile".bak
428 ;;
429
430 cpp)
431 # Important note: in order to support this mode, a compiler *must*
432 # always write the preprocessed file to stdout.
433 "$@" || exit $?
434
435 # Remove the call to Libtool.
436 if test "$libtool" = yes; then
437 while test $1 != '--mode=compile'; do
438 shift
439 done
440 shift
441 fi
442
443 # Remove `-o $object'.
444 IFS=" "
445 for arg
446 do
447 case $arg in
448 -o)
449 shift
450 ;;
451 $object)
452 shift
453 ;;
454 *)
455 set fnord "$@" "$arg"
456 shift # fnord
457 shift # $arg
458 ;;
459 esac
460 done
461
462 "$@" -E |
463 sed -n '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
464 sed '$ s: \\$::' > "$tmpdepfile"
465 rm -f "$depfile"
466 echo "$object : \\" > "$depfile"
467 cat < "$tmpdepfile" >> "$depfile"
468 sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
469 rm -f "$tmpdepfile"
470 ;;
471
472 msvisualcpp)
473 # Important note: in order to support this mode, a compiler *must*
474 # always write the preprocessed file to stdout, regardless of -o,
475 # because we must use -o when running libtool.
476 "$@" || exit $?
477 IFS=" "
478 for arg
479 do
480 case "$arg" in
481 "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
482 set fnord "$@"
483 shift
484 shift
485 ;;
486 *)
487 set fnord "$@" "$arg"
488 shift
489 shift
490 ;;
491 esac
492 done
493 "$@" -E |
494 sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
495 rm -f "$depfile"
496 echo "$object : \\" > "$depfile"
497 . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile"
498 echo " " >> "$depfile"
499 . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
500 rm -f "$tmpdepfile"
501 ;;
502
503 none)
504 exec "$@"
505 ;;
506
507 *)
508 echo "Unknown depmode $depmode" 1>&2
509 exit 1
510 ;;
511 esac
512
513 exit 0
514
515 # Local Variables:
516 # mode: shell-script
517 # sh-indentation: 2
518 # eval: (add-hook 'write-file-hooks 'time-stamp)
519 # time-stamp-start: "scriptversion="
520 # time-stamp-format: "%:y-%02m-%02d.%02H"
521 # time-stamp-end: "$"
522 # End: