sh.c: Do not include algorithm.
[thirdparty/gcc.git] / depcomp
CommitLineData
6de9cd9a 1#! /bin/sh
6de9cd9a 2# depcomp - compile a program generating dependencies as side-effects
85f59630 3
0539cb2c 4scriptversion=2009-04-28.21; # UTC
85f59630 5
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6# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007, 2009 Free
7# Software Foundation, Inc.
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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
0539cb2c 20# along with this program. If not, see <http://www.gnu.org/licenses/>.
6de9cd9a
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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
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29case $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
36Usage: depcomp [--help] [--version] PROGRAM [ARGS]
37
38Run PROGRAMS ARGS to compile a file, generating dependencies
39as side-effects.
40
41Environment 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
50Report bugs to <bug-automake@gnu.org>.
51EOF
f610dd5f 52 exit $?
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53 ;;
54 -v | --v*)
55 echo "depcomp $scriptversion"
f610dd5f 56 exit $?
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57 ;;
58esac
59
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60if test -z "$depmode" || test -z "$source" || test -z "$object"; then
61 echo "depcomp: Variables source, object and depmode must be set" 1>&2
62 exit 1
63fi
6de9cd9a 64
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65# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
66depfile=${depfile-`echo "$object" |
67 sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
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68tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
69
70rm -f "$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.
76if test "$depmode" = hp; then
77 # HP compiler uses -M and no extra arg.
78 gccflag=-M
79 depmode=gcc
80fi
81
82if test "$depmode" = dashXmstdout; then
83 # This is just like dashmstdout with a different argument.
84 dashmflag=-xM
85 depmode=dashmstdout
86fi
87
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88cygpath_u="cygpath -u -f -"
89if test "$depmode" = msvcmsys; then
90 # This is just like msvisualcpp but w/o cygpath translation.
91 # Just convert the backslash-escaped backslashes to single forward
92 # slashes to satisfy depend.m4
93 cygpath_u="sed s,\\\\\\\\,/,g"
94 depmode=msvisualcpp
95fi
96
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97case "$depmode" in
98gcc3)
99## gcc 3 implements dependency tracking that does exactly what
100## we want. Yay! Note: for some reason libtool 1.4 doesn't like
101## it if -MD -MP comes after the -MF stuff. Hmm.
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102## Unfortunately, FreeBSD c89 acceptance of flags depends upon
103## the command line argument order; so add the flags where they
104## appear in depend2.am. Note that the slowdown incurred here
105## affects only configure: in makefiles, %FASTDEP% shortcuts this.
106 for arg
107 do
108 case $arg in
109 -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
110 *) set fnord "$@" "$arg" ;;
111 esac
112 shift # fnord
113 shift # $arg
114 done
115 "$@"
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116 stat=$?
117 if test $stat -eq 0; then :
118 else
119 rm -f "$tmpdepfile"
120 exit $stat
121 fi
122 mv "$tmpdepfile" "$depfile"
123 ;;
124
125gcc)
126## There are various ways to get dependency output from gcc. Here's
127## why we pick this rather obscure method:
128## - Don't want to use -MD because we'd like the dependencies to end
129## up in a subdir. Having to rename by hand is ugly.
130## (We might end up doing this anyway to support other compilers.)
131## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
132## -MM, not -M (despite what the docs say).
133## - Using -M directly means running the compiler twice (even worse
134## than renaming).
135 if test -z "$gccflag"; then
136 gccflag=-MD,
137 fi
138 "$@" -Wp,"$gccflag$tmpdepfile"
139 stat=$?
140 if test $stat -eq 0; then :
141 else
142 rm -f "$tmpdepfile"
143 exit $stat
144 fi
145 rm -f "$depfile"
146 echo "$object : \\" > "$depfile"
147 alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
148## The second -e expression handles DOS-style file names with drive letters.
149 sed -e 's/^[^:]*: / /' \
150 -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
151## This next piece of magic avoids the `deleted header file' problem.
152## The problem is that when a header file which appears in a .P file
153## is deleted, the dependency causes make to die (because there is
154## typically no way to rebuild the header). We avoid this by adding
155## dummy dependencies for each header file. Too bad gcc doesn't do
156## this for us directly.
157 tr ' ' '
158' < "$tmpdepfile" |
159## Some versions of gcc put a space before the `:'. On the theory
160## that the space means something, we add a space to the output as
161## well.
162## Some versions of the HPUX 10.20 sed can't process this invocation
163## correctly. Breaking it into two sed invocations is a workaround.
164 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
165 rm -f "$tmpdepfile"
166 ;;
167
168hp)
169 # This case exists only to let depend.m4 do its work. It works by
170 # looking at the text of this script. This case will never be run,
171 # since it is checked for above.
172 exit 1
173 ;;
174
175sgi)
176 if test "$libtool" = yes; then
177 "$@" "-Wp,-MDupdate,$tmpdepfile"
178 else
179 "$@" -MDupdate "$tmpdepfile"
180 fi
181 stat=$?
182 if test $stat -eq 0; then :
183 else
184 rm -f "$tmpdepfile"
185 exit $stat
186 fi
187 rm -f "$depfile"
188
189 if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
190 echo "$object : \\" > "$depfile"
191
192 # Clip off the initial element (the dependent). Don't try to be
193 # clever and replace this with sed code, as IRIX sed won't handle
194 # lines with more than a fixed number of characters (4096 in
195 # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
196 # the IRIX cc adds comments like `#:fec' to the end of the
197 # dependency line.
198 tr ' ' '
199' < "$tmpdepfile" \
200 | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
201 tr '
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202' ' ' >> "$depfile"
203 echo >> "$depfile"
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204
205 # The second pass generates a dummy entry for each header file.
206 tr ' ' '
207' < "$tmpdepfile" \
208 | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
0539cb2c 209 >> "$depfile"
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210 else
211 # The sourcefile does not contain any dependencies, so just
212 # store a dummy comment line, to avoid errors with the Makefile
213 # "include basename.Plo" scheme.
214 echo "#dummy" > "$depfile"
215 fi
216 rm -f "$tmpdepfile"
217 ;;
218
219aix)
220 # The C for AIX Compiler uses -M and outputs the dependencies
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221 # in a .u file. In older versions, this file always lives in the
222 # current directory. Also, the AIX compiler puts `$object:' at the
223 # start of each line; $object doesn't have directory information.
224 # Version 6 uses the directory in both cases.
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225 dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
226 test "x$dir" = "x$object" && dir=
227 base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
6de9cd9a 228 if test "$libtool" = yes; then
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229 tmpdepfile1=$dir$base.u
230 tmpdepfile2=$base.u
231 tmpdepfile3=$dir.libs/$base.u
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232 "$@" -Wc,-M
233 else
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234 tmpdepfile1=$dir$base.u
235 tmpdepfile2=$dir$base.u
236 tmpdepfile3=$dir$base.u
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237 "$@" -M
238 fi
6de9cd9a 239 stat=$?
85f59630 240
6de9cd9a
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241 if test $stat -eq 0; then :
242 else
0539cb2c 243 rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
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244 exit $stat
245 fi
246
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247 for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
248 do
249 test -f "$tmpdepfile" && break
250 done
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251 if test -f "$tmpdepfile"; then
252 # Each line is of the form `foo.o: dependent.h'.
253 # Do two passes, one to just change these to
254 # `$object: dependent.h' and one to simply `dependent.h:'.
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255 sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
256 # That's a tab and a space in the [].
257 sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
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258 else
259 # The sourcefile does not contain any dependencies, so just
260 # store a dummy comment line, to avoid errors with the Makefile
261 # "include basename.Plo" scheme.
262 echo "#dummy" > "$depfile"
263 fi
264 rm -f "$tmpdepfile"
265 ;;
266
267icc)
268 # Intel's C compiler understands `-MD -MF file'. However on
269 # icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
270 # ICC 7.0 will fill foo.d with something like
271 # foo.o: sub/foo.c
272 # foo.o: sub/foo.h
273 # which is wrong. We want:
274 # sub/foo.o: sub/foo.c
275 # sub/foo.o: sub/foo.h
276 # sub/foo.c:
277 # sub/foo.h:
278 # ICC 7.1 will output
279 # foo.o: sub/foo.c sub/foo.h
280 # and will wrap long lines using \ :
281 # foo.o: sub/foo.c ... \
282 # sub/foo.h ... \
283 # ...
284
285 "$@" -MD -MF "$tmpdepfile"
286 stat=$?
287 if test $stat -eq 0; then :
288 else
289 rm -f "$tmpdepfile"
290 exit $stat
291 fi
292 rm -f "$depfile"
293 # Each line is of the form `foo.o: dependent.h',
294 # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
295 # Do two passes, one to just change these to
296 # `$object: dependent.h' and one to simply `dependent.h:'.
297 sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
298 # Some versions of the HPUX 10.20 sed can't process this invocation
299 # correctly. Breaking it into two sed invocations is a workaround.
300 sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
301 sed -e 's/$/ :/' >> "$depfile"
302 rm -f "$tmpdepfile"
303 ;;
304
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305hp2)
306 # The "hp" stanza above does not work with aCC (C++) and HP's ia64
307 # compilers, which have integrated preprocessors. The correct option
308 # to use with these is +Maked; it writes dependencies to a file named
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309 # 'foo.d', which lands next to the object file, wherever that
310 # happens to be.
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311 # Much of this is similar to the tru64 case; see comments there.
312 dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
313 test "x$dir" = "x$object" && dir=
314 base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
315 if test "$libtool" = yes; then
316 tmpdepfile1=$dir$base.d
317 tmpdepfile2=$dir.libs/$base.d
318 "$@" -Wc,+Maked
319 else
320 tmpdepfile1=$dir$base.d
321 tmpdepfile2=$dir$base.d
322 "$@" +Maked
323 fi
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324 stat=$?
325 if test $stat -eq 0; then :
326 else
0539cb2c 327 rm -f "$tmpdepfile1" "$tmpdepfile2"
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328 exit $stat
329 fi
f610dd5f 330
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331 for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
332 do
333 test -f "$tmpdepfile" && break
334 done
335 if test -f "$tmpdepfile"; then
336 sed -e "s,^.*\.[a-z]*:,$object:," "$tmpdepfile" > "$depfile"
337 # Add `dependent.h:' lines.
338 sed -ne '2,${
339 s/^ *//
340 s/ \\*$//
341 s/$/:/
342 p
343 }' "$tmpdepfile" >> "$depfile"
344 else
345 echo "#dummy" > "$depfile"
346 fi
347 rm -f "$tmpdepfile" "$tmpdepfile2"
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348 ;;
349
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350tru64)
351 # The Tru64 compiler uses -MD to generate dependencies as a side
352 # effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
353 # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
354 # dependencies in `foo.d' instead, so we check for that too.
355 # Subdirectories are respected.
356 dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
357 test "x$dir" = "x$object" && dir=
358 base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
359
360 if test "$libtool" = yes; then
f610dd5f 361 # With Tru64 cc, shared objects can also be used to make a
0539cb2c 362 # static library. This mechanism is used in libtool 1.4 series to
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363 # handle both shared and static libraries in a single compilation.
364 # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
365 #
366 # With libtool 1.5 this exception was removed, and libtool now
367 # generates 2 separate objects for the 2 libraries. These two
0539cb2c 368 # compilations output dependencies in $dir.libs/$base.o.d and
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369 # in $dir$base.o.d. We have to check for both files, because
370 # one of the two compilations can be disabled. We should prefer
371 # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
372 # automatically cleaned when .libs/ is deleted, while ignoring
373 # the former would cause a distcleancheck panic.
374 tmpdepfile1=$dir.libs/$base.lo.d # libtool 1.4
375 tmpdepfile2=$dir$base.o.d # libtool 1.5
376 tmpdepfile3=$dir.libs/$base.o.d # libtool 1.5
377 tmpdepfile4=$dir.libs/$base.d # Compaq CCC V6.2-504
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378 "$@" -Wc,-MD
379 else
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380 tmpdepfile1=$dir$base.o.d
381 tmpdepfile2=$dir$base.d
382 tmpdepfile3=$dir$base.d
383 tmpdepfile4=$dir$base.d
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384 "$@" -MD
385 fi
386
387 stat=$?
388 if test $stat -eq 0; then :
389 else
f610dd5f 390 rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
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391 exit $stat
392 fi
393
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394 for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
395 do
396 test -f "$tmpdepfile" && break
397 done
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398 if test -f "$tmpdepfile"; then
399 sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
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400 # That's a tab and a space in the [].
401 sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
6de9cd9a
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402 else
403 echo "#dummy" > "$depfile"
404 fi
405 rm -f "$tmpdepfile"
406 ;;
407
408#nosideeffect)
409 # This comment above is used by automake to tell side-effect
410 # dependency tracking mechanisms from slower ones.
411
412dashmstdout)
413 # Important note: in order to support this mode, a compiler *must*
85f59630 414 # always write the preprocessed file to stdout, regardless of -o.
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415 "$@" || exit $?
416
417 # Remove the call to Libtool.
418 if test "$libtool" = yes; then
0539cb2c 419 while test "X$1" != 'X--mode=compile'; do
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420 shift
421 done
422 shift
423 fi
424
425 # Remove `-o $object'.
426 IFS=" "
427 for arg
428 do
429 case $arg in
430 -o)
431 shift
432 ;;
433 $object)
434 shift
435 ;;
436 *)
437 set fnord "$@" "$arg"
438 shift # fnord
439 shift # $arg
440 ;;
441 esac
442 done
443
444 test -z "$dashmflag" && dashmflag=-M
445 # Require at least two characters before searching for `:'
446 # in the target name. This is to cope with DOS-style filenames:
447 # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
448 "$@" $dashmflag |
449 sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
450 rm -f "$depfile"
451 cat < "$tmpdepfile" > "$depfile"
452 tr ' ' '
453' < "$tmpdepfile" | \
454## Some versions of the HPUX 10.20 sed can't process this invocation
455## correctly. Breaking it into two sed invocations is a workaround.
456 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
457 rm -f "$tmpdepfile"
458 ;;
459
460dashXmstdout)
461 # This case only exists to satisfy depend.m4. It is never actually
462 # run, as this mode is specially recognized in the preamble.
463 exit 1
464 ;;
465
466makedepend)
467 "$@" || exit $?
468 # Remove any Libtool call
469 if test "$libtool" = yes; then
0539cb2c 470 while test "X$1" != 'X--mode=compile'; do
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471 shift
472 done
473 shift
474 fi
475 # X makedepend
476 shift
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477 cleared=no eat=no
478 for arg
479 do
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480 case $cleared in
481 no)
482 set ""; shift
483 cleared=yes ;;
484 esac
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485 if test $eat = yes; then
486 eat=no
487 continue
488 fi
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489 case "$arg" in
490 -D*|-I*)
491 set fnord "$@" "$arg"; shift ;;
492 # Strip any option that makedepend may not understand. Remove
493 # the object too, otherwise makedepend will parse it as a source file.
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494 -arch)
495 eat=yes ;;
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496 -*|$object)
497 ;;
498 *)
499 set fnord "$@" "$arg"; shift ;;
500 esac
501 done
0539cb2c 502 obj_suffix=`echo "$object" | sed 's/^.*\././'`
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503 touch "$tmpdepfile"
504 ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
505 rm -f "$depfile"
506 cat < "$tmpdepfile" > "$depfile"
507 sed '1,2d' "$tmpdepfile" | tr ' ' '
508' | \
509## Some versions of the HPUX 10.20 sed can't process this invocation
510## correctly. Breaking it into two sed invocations is a workaround.
511 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
512 rm -f "$tmpdepfile" "$tmpdepfile".bak
513 ;;
514
515cpp)
516 # Important note: in order to support this mode, a compiler *must*
85f59630 517 # always write the preprocessed file to stdout.
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518 "$@" || exit $?
519
520 # Remove the call to Libtool.
521 if test "$libtool" = yes; then
0539cb2c 522 while test "X$1" != 'X--mode=compile'; do
6de9cd9a
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523 shift
524 done
525 shift
526 fi
527
528 # Remove `-o $object'.
529 IFS=" "
530 for arg
531 do
532 case $arg in
533 -o)
534 shift
535 ;;
536 $object)
537 shift
538 ;;
539 *)
540 set fnord "$@" "$arg"
541 shift # fnord
542 shift # $arg
543 ;;
544 esac
545 done
546
547 "$@" -E |
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548 sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
549 -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
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550 sed '$ s: \\$::' > "$tmpdepfile"
551 rm -f "$depfile"
552 echo "$object : \\" > "$depfile"
553 cat < "$tmpdepfile" >> "$depfile"
554 sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
555 rm -f "$tmpdepfile"
556 ;;
557
558msvisualcpp)
559 # Important note: in order to support this mode, a compiler *must*
0539cb2c 560 # always write the preprocessed file to stdout.
6de9cd9a 561 "$@" || exit $?
0539cb2c
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562
563 # Remove the call to Libtool.
564 if test "$libtool" = yes; then
565 while test "X$1" != 'X--mode=compile'; do
566 shift
567 done
568 shift
569 fi
570
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571 IFS=" "
572 for arg
573 do
574 case "$arg" in
0539cb2c
RW
575 -o)
576 shift
577 ;;
578 $object)
579 shift
580 ;;
6de9cd9a
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581 "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
582 set fnord "$@"
583 shift
584 shift
585 ;;
586 *)
587 set fnord "$@" "$arg"
588 shift
589 shift
590 ;;
591 esac
592 done
0539cb2c
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593 "$@" -E 2>/dev/null |
594 sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
6de9cd9a
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595 rm -f "$depfile"
596 echo "$object : \\" > "$depfile"
0539cb2c 597 sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile"
6de9cd9a 598 echo " " >> "$depfile"
0539cb2c 599 sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
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600 rm -f "$tmpdepfile"
601 ;;
602
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603msvcmsys)
604 # This case exists only to let depend.m4 do its work. It works by
605 # looking at the text of this script. This case will never be run,
606 # since it is checked for above.
607 exit 1
608 ;;
609
6de9cd9a
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610none)
611 exec "$@"
612 ;;
613
614*)
615 echo "Unknown depmode $depmode" 1>&2
616 exit 1
617 ;;
618esac
619
620exit 0
85f59630
KC
621
622# Local Variables:
623# mode: shell-script
624# sh-indentation: 2
625# eval: (add-hook 'write-file-hooks 'time-stamp)
626# time-stamp-start: "scriptversion="
627# time-stamp-format: "%:y-%02m-%02d.%02H"
0539cb2c
RW
628# time-stamp-time-zone: "UTC"
629# time-stamp-end: "; # UTC"
85f59630 630# End: