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comparison depcomp @ 0:d39e1d0d75b6

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author paulo@hit-nxdomain.opendns.com
date Sat, 20 Feb 2010 21:18:28 -0800
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1 #! /bin/sh
2
3 # depcomp - compile a program generating dependencies as side-effects
4 # Copyright 1999, 2000, 2003 Free Software Foundation, Inc.
5
6 # This program is free software; you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation; either version 2, or (at your option)
9 # any later version.
10
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
15
16 # You should have received a copy of the GNU General Public License
17 # along with this program; if not, write to the Free Software
18 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
19 # 02111-1307, USA.
20
21 # As a special exception to the GNU General Public License, if you
22 # distribute this file as part of a program that contains a
23 # configuration script generated by Autoconf, you may include it under
24 # the same distribution terms that you use for the rest of that program.
25
26 # Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
27
28 if test -z "$depmode" || test -z "$source" || test -z "$object"; then
29 echo "depcomp: Variables source, object and depmode must be set" 1>&2
30 exit 1
31 fi
32 # `libtool' can also be set to `yes' or `no'.
33
34 if test -z "$depfile"; then
35 base=`echo "$object" | sed -e 's,^.*/,,' -e 's,\.\([^.]*\)$,.P\1,'`
36 dir=`echo "$object" | sed 's,/.*$,/,'`
37 if test "$dir" = "$object"; then
38 dir=
39 fi
40 # FIXME: should be _deps on DOS.
41 depfile="$dir.deps/$base"
42 fi
43
44 tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
45
46 rm -f "$tmpdepfile"
47
48 # Some modes work just like other modes, but use different flags. We
49 # parameterize here, but still list the modes in the big case below,
50 # to make depend.m4 easier to write. Note that we *cannot* use a case
51 # here, because this file can only contain one case statement.
52 if test "$depmode" = hp; then
53 # HP compiler uses -M and no extra arg.
54 gccflag=-M
55 depmode=gcc
56 fi
57
58 if test "$depmode" = dashXmstdout; then
59 # This is just like dashmstdout with a different argument.
60 dashmflag=-xM
61 depmode=dashmstdout
62 fi
63
64 case "$depmode" in
65 gcc3)
66 ## gcc 3 implements dependency tracking that does exactly what
67 ## we want. Yay! Note: for some reason libtool 1.4 doesn't like
68 ## it if -MD -MP comes after the -MF stuff. Hmm.
69 "$@" -MT "$object" -MD -MP -MF "$tmpdepfile"
70 stat=$?
71 if test $stat -eq 0; then :
72 else
73 rm -f "$tmpdepfile"
74 exit $stat
75 fi
76 mv "$tmpdepfile" "$depfile"
77 ;;
78
79 gcc)
80 ## There are various ways to get dependency output from gcc. Here's
81 ## why we pick this rather obscure method:
82 ## - Don't want to use -MD because we'd like the dependencies to end
83 ## up in a subdir. Having to rename by hand is ugly.
84 ## (We might end up doing this anyway to support other compilers.)
85 ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
86 ## -MM, not -M (despite what the docs say).
87 ## - Using -M directly means running the compiler twice (even worse
88 ## than renaming).
89 if test -z "$gccflag"; then
90 gccflag=-MD,
91 fi
92 "$@" -Wp,"$gccflag$tmpdepfile"
93 stat=$?
94 if test $stat -eq 0; then :
95 else
96 rm -f "$tmpdepfile"
97 exit $stat
98 fi
99 rm -f "$depfile"
100 echo "$object : \\" > "$depfile"
101 alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
102 ## The second -e expression handles DOS-style file names with drive letters.
103 sed -e 's/^[^:]*: / /' \
104 -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
105 ## This next piece of magic avoids the `deleted header file' problem.
106 ## The problem is that when a header file which appears in a .P file
107 ## is deleted, the dependency causes make to die (because there is
108 ## typically no way to rebuild the header). We avoid this by adding
109 ## dummy dependencies for each header file. Too bad gcc doesn't do
110 ## this for us directly.
111 tr ' ' '
112 ' < "$tmpdepfile" |
113 ## Some versions of gcc put a space before the `:'. On the theory
114 ## that the space means something, we add a space to the output as
115 ## well.
116 ## Some versions of the HPUX 10.20 sed can't process this invocation
117 ## correctly. Breaking it into two sed invocations is a workaround.
118 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
119 rm -f "$tmpdepfile"
120 ;;
121
122 hp)
123 # This case exists only to let depend.m4 do its work. It works by
124 # looking at the text of this script. This case will never be run,
125 # since it is checked for above.
126 exit 1
127 ;;
128
129 sgi)
130 if test "$libtool" = yes; then
131 "$@" "-Wp,-MDupdate,$tmpdepfile"
132 else
133 "$@" -MDupdate "$tmpdepfile"
134 fi
135 stat=$?
136 if test $stat -eq 0; then :
137 else
138 rm -f "$tmpdepfile"
139 exit $stat
140 fi
141 rm -f "$depfile"
142
143 if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
144 echo "$object : \\" > "$depfile"
145
146 # Clip off the initial element (the dependent). Don't try to be
147 # clever and replace this with sed code, as IRIX sed won't handle
148 # lines with more than a fixed number of characters (4096 in
149 # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
150 # the IRIX cc adds comments like `#:fec' to the end of the
151 # dependency line.
152 tr ' ' '
153 ' < "$tmpdepfile" \
154 | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
155 tr '
156 ' ' ' >> $depfile
157 echo >> $depfile
158
159 # The second pass generates a dummy entry for each header file.
160 tr ' ' '
161 ' < "$tmpdepfile" \
162 | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
163 >> $depfile
164 else
165 # The sourcefile does not contain any dependencies, so just
166 # store a dummy comment line, to avoid errors with the Makefile
167 # "include basename.Plo" scheme.
168 echo "#dummy" > "$depfile"
169 fi
170 rm -f "$tmpdepfile"
171 ;;
172
173 aix)
174 # The C for AIX Compiler uses -M and outputs the dependencies
175 # in a .u file. In older versions, this file always lives in the
176 # current directory. Also, the AIX compiler puts `$object:' at the
177 # start of each line; $object doesn't have directory information.
178 # Version 6 uses the directory in both cases.
179 stripped=`echo "$object" | sed 's/\(.*\)\..*$/\1/'`
180 tmpdepfile="$stripped.u"
181 if test "$libtool" = yes; then
182 "$@" -Wc,-M
183 else
184 "$@" -M
185 fi
186 stat=$?
187
188 if test -f "$tmpdepfile"; then :
189 else
190 stripped=`echo "$stripped" | sed 's,^.*/,,'`
191 tmpdepfile="$stripped.u"
192 fi
193
194 if test $stat -eq 0; then :
195 else
196 rm -f "$tmpdepfile"
197 exit $stat
198 fi
199
200 if test -f "$tmpdepfile"; then
201 outname="$stripped.o"
202 # Each line is of the form `foo.o: dependent.h'.
203 # Do two passes, one to just change these to
204 # `$object: dependent.h' and one to simply `dependent.h:'.
205 sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile"
206 sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
207 else
208 # The sourcefile does not contain any dependencies, so just
209 # store a dummy comment line, to avoid errors with the Makefile
210 # "include basename.Plo" scheme.
211 echo "#dummy" > "$depfile"
212 fi
213 rm -f "$tmpdepfile"
214 ;;
215
216 icc)
217 # Intel's C compiler understands `-MD -MF file'. However on
218 # icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
219 # ICC 7.0 will fill foo.d with something like
220 # foo.o: sub/foo.c
221 # foo.o: sub/foo.h
222 # which is wrong. We want:
223 # sub/foo.o: sub/foo.c
224 # sub/foo.o: sub/foo.h
225 # sub/foo.c:
226 # sub/foo.h:
227 # ICC 7.1 will output
228 # foo.o: sub/foo.c sub/foo.h
229 # and will wrap long lines using \ :
230 # foo.o: sub/foo.c ... \
231 # sub/foo.h ... \
232 # ...
233
234 "$@" -MD -MF "$tmpdepfile"
235 stat=$?
236 if test $stat -eq 0; then :
237 else
238 rm -f "$tmpdepfile"
239 exit $stat
240 fi
241 rm -f "$depfile"
242 # Each line is of the form `foo.o: dependent.h',
243 # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
244 # Do two passes, one to just change these to
245 # `$object: dependent.h' and one to simply `dependent.h:'.
246 sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
247 # Some versions of the HPUX 10.20 sed can't process this invocation
248 # correctly. Breaking it into two sed invocations is a workaround.
249 sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
250 sed -e 's/$/ :/' >> "$depfile"
251 rm -f "$tmpdepfile"
252 ;;
253
254 tru64)
255 # The Tru64 compiler uses -MD to generate dependencies as a side
256 # effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
257 # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
258 # dependencies in `foo.d' instead, so we check for that too.
259 # Subdirectories are respected.
260 dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
261 test "x$dir" = "x$object" && dir=
262 base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
263
264 if test "$libtool" = yes; then
265 tmpdepfile1="$dir.libs/$base.lo.d"
266 tmpdepfile2="$dir.libs/$base.d"
267 "$@" -Wc,-MD
268 else
269 tmpdepfile1="$dir$base.o.d"
270 tmpdepfile2="$dir$base.d"
271 "$@" -MD
272 fi
273
274 stat=$?
275 if test $stat -eq 0; then :
276 else
277 rm -f "$tmpdepfile1" "$tmpdepfile2"
278 exit $stat
279 fi
280
281 if test -f "$tmpdepfile1"; then
282 tmpdepfile="$tmpdepfile1"
283 else
284 tmpdepfile="$tmpdepfile2"
285 fi
286 if test -f "$tmpdepfile"; then
287 sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
288 # That's a tab and a space in the [].
289 sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
290 else
291 echo "#dummy" > "$depfile"
292 fi
293 rm -f "$tmpdepfile"
294 ;;
295
296 #nosideeffect)
297 # This comment above is used by automake to tell side-effect
298 # dependency tracking mechanisms from slower ones.
299
300 dashmstdout)
301 # Important note: in order to support this mode, a compiler *must*
302 # always write the preprocessed file to stdout, regardless of -o.
303 "$@" || exit $?
304
305 # Remove the call to Libtool.
306 if test "$libtool" = yes; then
307 while test $1 != '--mode=compile'; do
308 shift
309 done
310 shift
311 fi
312
313 # Remove `-o $object'.
314 IFS=" "
315 for arg
316 do
317 case $arg in
318 -o)
319 shift
320 ;;
321 $object)
322 shift
323 ;;
324 *)
325 set fnord "$@" "$arg"
326 shift # fnord
327 shift # $arg
328 ;;
329 esac
330 done
331
332 test -z "$dashmflag" && dashmflag=-M
333 # Require at least two characters before searching for `:'
334 # in the target name. This is to cope with DOS-style filenames:
335 # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
336 "$@" $dashmflag |
337 sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
338 rm -f "$depfile"
339 cat < "$tmpdepfile" > "$depfile"
340 tr ' ' '
341 ' < "$tmpdepfile" | \
342 ## Some versions of the HPUX 10.20 sed can't process this invocation
343 ## correctly. Breaking it into two sed invocations is a workaround.
344 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
345 rm -f "$tmpdepfile"
346 ;;
347
348 dashXmstdout)
349 # This case only exists to satisfy depend.m4. It is never actually
350 # run, as this mode is specially recognized in the preamble.
351 exit 1
352 ;;
353
354 makedepend)
355 "$@" || exit $?
356 # Remove any Libtool call
357 if test "$libtool" = yes; then
358 while test $1 != '--mode=compile'; do
359 shift
360 done
361 shift
362 fi
363 # X makedepend
364 shift
365 cleared=no
366 for arg in "$@"; do
367 case $cleared in
368 no)
369 set ""; shift
370 cleared=yes ;;
371 esac
372 case "$arg" in
373 -D*|-I*)
374 set fnord "$@" "$arg"; shift ;;
375 # Strip any option that makedepend may not understand. Remove
376 # the object too, otherwise makedepend will parse it as a source file.
377 -*|$object)
378 ;;
379 *)
380 set fnord "$@" "$arg"; shift ;;
381 esac
382 done
383 obj_suffix="`echo $object | sed 's/^.*\././'`"
384 touch "$tmpdepfile"
385 ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
386 rm -f "$depfile"
387 cat < "$tmpdepfile" > "$depfile"
388 sed '1,2d' "$tmpdepfile" | tr ' ' '
389 ' | \
390 ## Some versions of the HPUX 10.20 sed can't process this invocation
391 ## correctly. Breaking it into two sed invocations is a workaround.
392 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
393 rm -f "$tmpdepfile" "$tmpdepfile".bak
394 ;;
395
396 cpp)
397 # Important note: in order to support this mode, a compiler *must*
398 # always write the preprocessed file to stdout.
399 "$@" || exit $?
400
401 # Remove the call to Libtool.
402 if test "$libtool" = yes; then
403 while test $1 != '--mode=compile'; do
404 shift
405 done
406 shift
407 fi
408
409 # Remove `-o $object'.
410 IFS=" "
411 for arg
412 do
413 case $arg in
414 -o)
415 shift
416 ;;
417 $object)
418 shift
419 ;;
420 *)
421 set fnord "$@" "$arg"
422 shift # fnord
423 shift # $arg
424 ;;
425 esac
426 done
427
428 "$@" -E |
429 sed -n '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
430 sed '$ s: \\$::' > "$tmpdepfile"
431 rm -f "$depfile"
432 echo "$object : \\" > "$depfile"
433 cat < "$tmpdepfile" >> "$depfile"
434 sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
435 rm -f "$tmpdepfile"
436 ;;
437
438 msvisualcpp)
439 # Important note: in order to support this mode, a compiler *must*
440 # always write the preprocessed file to stdout, regardless of -o,
441 # because we must use -o when running libtool.
442 "$@" || exit $?
443 IFS=" "
444 for arg
445 do
446 case "$arg" in
447 "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
448 set fnord "$@"
449 shift
450 shift
451 ;;
452 *)
453 set fnord "$@" "$arg"
454 shift
455 shift
456 ;;
457 esac
458 done
459 "$@" -E |
460 sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
461 rm -f "$depfile"
462 echo "$object : \\" > "$depfile"
463 . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile"
464 echo " " >> "$depfile"
465 . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
466 rm -f "$tmpdepfile"
467 ;;
468
469 none)
470 exec "$@"
471 ;;
472
473 *)
474 echo "Unknown depmode $depmode" 1>&2
475 exit 1
476 ;;
477 esac
478
479 exit 0