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 "$tmpdepfile"
207 ;;
208
209 tru64)
210 # The Tru64 compiler uses -MD to generate dependencies as a side
211 # effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
212 # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
213 # dependencies in `foo.d' instead, so we check for that too.
214 # Subdirectories are respected.
215 dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
216 test "x$dir" = "x$object" && dir=
217 base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
218
219 if test "$libtool" = yes; then
220 tmpdepfile1="$dir.libs/$base.lo.d"
221 tmpdepfile2="$dir.libs/$base.d"
222 "$@" -Wc,-MD
223 else
224 tmpdepfile1="$dir$base.o.d"
225 tmpdepfile2="$dir$base.d"
226 "$@" -MD
227 fi
228
229 stat=$?
230 if test $stat -eq 0; then :
231 else
232 rm -f "$tmpdepfile1" "$tmpdepfile2"
233 exit $stat
234 fi
235
236 if test -f "$tmpdepfile1"; then
237 tmpdepfile="$tmpdepfile1"
238 else
239 tmpdepfile="$tmpdepfile2"
240 fi
241 if test -f "$tmpdepfile"; then
242 sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
243 # That's a space and a tab in the [].
244 sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
245 else
246 echo "#dummy" > "$depfile"
247 fi
248 rm -f "$tmpdepfile"
249 ;;
250
251 #nosideeffect)
252 # This comment above is used by automake to tell side-effect
253 # dependency tracking mechanisms from slower ones.
254
255 dashmstdout)
256 # Important note: in order to support this mode, a compiler *must*
257 # always write the proprocessed file to stdout, regardless of -o.
258 "$@" || exit $?
259
260 # Remove the call to Libtool.
261 if test "$libtool" = yes; then
262 while test $1 != '--mode=compile'; do
263 shift
264 done
265 shift
266 fi
267
268 # Remove `-o $object'. We will use -o /dev/null later,
269 # however we can't do the remplacement now because
270 # `-o $object' might simply not be used
271 IFS=" "
272 for arg
273 do
274 case $arg in
275 -o)
276 shift
277 ;;
278 $object)
279 shift
280 ;;
281 *)
282 set fnord "$@" "$arg"
283 shift # fnord
284 shift # $arg
285 ;;
286 esac
287 done
288
289 test -z "$dashmflag" && dashmflag=-M
290 "$@" -o /dev/null $dashmflag | sed 's:^[^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
291 rm -f "$depfile"
292 cat < "$tmpdepfile" > "$depfile"
293 tr ' ' '
294 ' < "$tmpdepfile" | \
295 ## Some versions of the HPUX 10.20 sed can't process this invocation
296 ## correctly. Breaking it into two sed invocations is a workaround.
297 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
298 rm -f "$tmpdepfile"
299 ;;
300
301 dashXmstdout)
302 # This case only exists to satisfy depend.m4. It is never actually
303 # run, as this mode is specially recognized in the preamble.
304 exit 1
305 ;;
306
307 makedepend)
308 "$@" || exit $?
309 # X makedepend
310 shift
311 cleared=no
312 for arg in "$@"; do
313 case $cleared in
314 no)
315 set ""; shift
316 cleared=yes ;;
317 esac
318 case "$arg" in
319 -D*|-I*)
320 set fnord "$@" "$arg"; shift ;;
321 -*)
322 ;;
323 *)
324 set fnord "$@" "$arg"; shift ;;
325 esac
326 done
327 obj_suffix="`echo $object | sed 's/^.*\././'`"
328 touch "$tmpdepfile"
329 ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
330 rm -f "$depfile"
331 cat < "$tmpdepfile" > "$depfile"
332 sed '1,2d' "$tmpdepfile" | tr ' ' '
333 ' | \
334 ## Some versions of the HPUX 10.20 sed can't process this invocation
335 ## correctly. Breaking it into two sed invocations is a workaround.
336 sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
337 rm -f "$tmpdepfile" "$tmpdepfile".bak
338 ;;
339
340 cpp)
341 # Important note: in order to support this mode, a compiler *must*
342 # always write the proprocessed file to stdout.
343 "$@" || exit $?
344
345 # Remove the call to Libtool.
346 if test "$libtool" = yes; then
347 while test $1 != '--mode=compile'; do
348 shift
349 done
350 shift
351 fi
352
353 # Remove `-o $object'.
354 IFS=" "
355 for arg
356 do
357 case $arg in
358 -o)
359 shift
360 ;;
361 $object)
362 shift
363 ;;
364 *)
365 set fnord "$@" "$arg"
366 shift # fnord
367 shift # $arg
368 ;;
369 esac
370 done
371
372 "$@" -E |
373 sed -n '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
374 sed '$ s: \\$::' > "$tmpdepfile"
375 rm -f "$depfile"
376 echo "$object : \\" > "$depfile"
377 cat < "$tmpdepfile" >> "$depfile"
378 sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
379 rm -f "$tmpdepfile"
380 ;;
381
382 msvisualcpp)
383 # Important note: in order to support this mode, a compiler *must*
384 # always write the proprocessed file to stdout, regardless of -o,
385 # because we must use -o when running libtool.
386 "$@" || exit $?
387 IFS=" "
388 for arg
389 do
390 case "$arg" in
391 "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
392 set fnord "$@"
393 shift
394 shift
395 ;;
396 *)
397 set fnord "$@" "$arg"
398 shift
399 shift
400 ;;
401 esac
402 done
403 "$@" -E |
404 sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
405 rm -f "$depfile"
406 echo "$object : \\" > "$depfile"
407 . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile"
408 echo " " >> "$depfile"
409 . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
410 rm -f "$tmpdepfile"
411 ;;
412
413 none)
414 exec "$@"
415 ;;
416
417 *)
418 echo "Unknown depmode $depmode" 1>&2
419 exit 1
420 ;;
421 esac
422
423 exit 0
|
