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Revision 5295 - (show annotations) (download)
Mon Aug 22 00:30:05 2005 UTC (14 years, 2 months ago) by jason
File size: 13303 byte(s)
merged 5270:HEAD from b-directory-reorg
1 #! /bin/sh
2
3 # depcomp - compile a program generating dependencies as side-effects
4 # Copyright 1999, 2000 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 "$tmpdepfile"
171 ;;
172
173 aix)
174 # The C for AIX Compiler uses -M and outputs the dependencies
175 # in a .u file. This file always lives in the current directory.
176 # Also, the AIX compiler puts `$object:' at the start of each line;
177 # $object doesn't have directory information.
178 stripped=`echo "$object" | sed -e 's,^.*/,,' -e 's/\(.*\)\..*$/\1/'`
179 tmpdepfile="$stripped.u"
180 outname="$stripped.o"
181 if test "$libtool" = yes; then
182 "$@" -Wc,-M
183 else
184 "$@" -M
185 fi
186
187 stat=$?
188 if test $stat -eq 0; then :
189 else
190 rm -f "$tmpdepfile"
191 exit $stat
192 fi
193
194 if test -f "$tmpdepfile"; then
195 # Each line is of the form `foo.o: dependent.h'.
196 # Do two passes, one to just change these to
197 # `$object: dependent.h' and one to simply `dependent.h:'.
198 sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile"
199 sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
200 else
201 # The sourcefile does not contain any dependencies, so just
202 # store a dummy comment line, to avoid errors with the Makefile
203 # "include basename.Plo" scheme.
204 echo "#dummy" > "$depfile"
205 fi
206 rm -f "$tmpdepfile"
207 ;;
208
209 icc)
210 # Must come before tru64.
211
212 # Intel's C compiler understands `-MD -MF file'. However
213 # icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
214 # will fill foo.d with something like
215 # foo.o: sub/foo.c
216 # foo.o: sub/foo.h
217 # which is wrong. We want:
218 # sub/foo.o: sub/foo.c
219 # sub/foo.o: sub/foo.h
220 # sub/foo.c:
221 # sub/foo.h:
222
223 "$@" -MD -MF "$tmpdepfile"
224 stat=$?
225 if test $stat -eq 0; then :
226 else
227 rm -f "$tmpdepfile"
228 exit $stat
229 fi
230 rm -f "$depfile"
231 # Each line is of the form `foo.o: dependent.h'.
232 # Do two passes, one to just change these to
233 # `$object: dependent.h' and one to simply `dependent.h:'.
234 sed -e "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
235 sed -e "s,^[^:]*: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
236 rm -f "$tmpdepfile"
237 ;;
238
239 tru64)
240 # The Tru64 compiler uses -MD to generate dependencies as a side
241 # effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
242 # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
243 # dependencies in `foo.d' instead, so we check for that too.
244 # Subdirectories are respected.
245 dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
246 test "x$dir" = "x$object" && dir=
247 base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
248
249 if test "$libtool" = yes; then
250 tmpdepfile1="$dir.libs/$base.lo.d"
251 tmpdepfile2="$dir.libs/$base.d"
252 "$@" -Wc,-MD
253 else
254 tmpdepfile1="$dir$base.o.d"
255 tmpdepfile2="$dir$base.d"
256 "$@" -MD
257 fi
258
259 stat=$?
260 if test $stat -eq 0; then :
261 else
262 rm -f "$tmpdepfile1" "$tmpdepfile2"
263 exit $stat
264 fi
265
266 if test -f "$tmpdepfile1"; then
267 tmpdepfile="$tmpdepfile1"
268 else
269 tmpdepfile="$tmpdepfile2"
270 fi
271 if test -f "$tmpdepfile"; then
272 sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
273 # That's a space and a tab in the [].
274 sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
275 else
276 echo "#dummy" > "$depfile"
277 fi
278 rm -f "$tmpdepfile"
279 ;;
280
281 #nosideeffect)
282 # This comment above is used by automake to tell side-effect
283 # dependency tracking mechanisms from slower ones.
284
285 dashmstdout)
286 # Important note: in order to support this mode, a compiler *must*
287 # always write the proprocessed file to stdout, regardless of -o.
288 "$@" || exit $?
289
290 # Remove the call to Libtool.
291 if test "$libtool" = yes; then
292 while test $1 != '--mode=compile'; do
293 shift
294 done
295 shift
296 fi
297
298 # Remove `-o $object'.
299 IFS=" "
300 for arg
301 do
302 case $arg in
303 -o)
304 shift
305 ;;
306 $object)
307 shift
308 ;;
309 *)
310 set fnord "$@" "$arg"
311 shift # fnord
312 shift # $arg
313 ;;
314 esac
315 done
316
317 test -z "$dashmflag" && dashmflag=-M
318 # Require at least two characters before searching for `:'
319 # in the target name. This is to cope with DOS-style filenames:
320 # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
321 "$@" $dashmflag |
322 sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
323 rm -f "$depfile"
324 cat < "$tmpdepfile" > "$depfile"
325 tr ' ' '
326 ' < "$tmpdepfile" | \
327 ## Some versions of the HPUX 10.20 sed can't process this invocation
328 ## correctly. Breaking it into two sed invocations is a workaround.
329 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
330 rm -f "$tmpdepfile"
331 ;;
332
333 dashXmstdout)
334 # This case only exists to satisfy depend.m4. It is never actually
335 # run, as this mode is specially recognized in the preamble.
336 exit 1
337 ;;
338
339 makedepend)
340 "$@" || exit $?
341 # Remove any Libtool call
342 if test "$libtool" = yes; then
343 while test $1 != '--mode=compile'; do
344 shift
345 done
346 shift
347 fi
348 # X makedepend
349 shift
350 cleared=no
351 for arg in "$@"; do
352 case $cleared in
353 no)
354 set ""; shift
355 cleared=yes ;;
356 esac
357 case "$arg" in
358 -D*|-I*)
359 set fnord "$@" "$arg"; shift ;;
360 # Strip any option that makedepend may not understand. Remove
361 # the object too, otherwise makedepend will parse it as a source file.
362 -*|$object)
363 ;;
364 *)
365 set fnord "$@" "$arg"; shift ;;
366 esac
367 done
368 obj_suffix="`echo $object | sed 's/^.*\././'`"
369 touch "$tmpdepfile"
370 ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
371 rm -f "$depfile"
372 cat < "$tmpdepfile" > "$depfile"
373 sed '1,2d' "$tmpdepfile" | tr ' ' '
374 ' | \
375 ## Some versions of the HPUX 10.20 sed can't process this invocation
376 ## correctly. Breaking it into two sed invocations is a workaround.
377 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
378 rm -f "$tmpdepfile" "$tmpdepfile".bak
379 ;;
380
381 cpp)
382 # Important note: in order to support this mode, a compiler *must*
383 # always write the proprocessed file to stdout.
384 "$@" || exit $?
385
386 # Remove the call to Libtool.
387 if test "$libtool" = yes; then
388 while test $1 != '--mode=compile'; do
389 shift
390 done
391 shift
392 fi
393
394 # Remove `-o $object'.
395 IFS=" "
396 for arg
397 do
398 case $arg in
399 -o)
400 shift
401 ;;
402 $object)
403 shift
404 ;;
405 *)
406 set fnord "$@" "$arg"
407 shift # fnord
408 shift # $arg
409 ;;
410 esac
411 done
412
413 "$@" -E |
414 sed -n '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
415 sed '$ s: \\$::' > "$tmpdepfile"
416 rm -f "$depfile"
417 echo "$object : \\" > "$depfile"
418 cat < "$tmpdepfile" >> "$depfile"
419 sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
420 rm -f "$tmpdepfile"
421 ;;
422
423 msvisualcpp)
424 # Important note: in order to support this mode, a compiler *must*
425 # always write the proprocessed file to stdout, regardless of -o,
426 # because we must use -o when running libtool.
427 "$@" || exit $?
428 IFS=" "
429 for arg
430 do
431 case "$arg" in
432 "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
433 set fnord "$@"
434 shift
435 shift
436 ;;
437 *)
438 set fnord "$@" "$arg"
439 shift
440 shift
441 ;;
442 esac
443 done
444 "$@" -E |
445 sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
446 rm -f "$depfile"
447 echo "$object : \\" > "$depfile"
448 . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile"
449 echo " " >> "$depfile"
450 . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
451 rm -f "$tmpdepfile"
452 ;;
453
454 none)
455 exec "$@"
456 ;;
457
458 *)
459 echo "Unknown depmode $depmode" 1>&2
460 exit 1
461 ;;
462 esac
463
464 exit 0

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