Annotation of thwomper-c/depcomp, revision 1.1.1.1
1.1 nick 1: #! /bin/sh
2: # depcomp - compile a program generating dependencies as side-effects
3:
4: scriptversion=2007-03-29.01
5:
6: # Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006, 2007 Free Software
7: # Foundation, Inc.
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
20: # along with this program; if not, write to the Free Software
21: # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
22: # 02110-1301, USA.
23:
24: # As a special exception to the GNU General Public License, if you
25: # distribute this file as part of a program that contains a
26: # configuration script generated by Autoconf, you may include it under
27: # the same distribution terms that you use for the rest of that program.
28:
29: # Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
30:
31: case $1 in
32: '')
33: echo "$0: No command. Try \`$0 --help' for more information." 1>&2
34: exit 1;
35: ;;
36: -h | --h*)
37: cat <<\EOF
38: Usage: depcomp [--help] [--version] PROGRAM [ARGS]
39:
40: Run PROGRAMS ARGS to compile a file, generating dependencies
41: as side-effects.
42:
43: Environment variables:
44: depmode Dependency tracking mode.
45: source Source file read by `PROGRAMS ARGS'.
46: object Object file output by `PROGRAMS ARGS'.
47: DEPDIR directory where to store dependencies.
48: depfile Dependency file to output.
49: tmpdepfile Temporary file to use when outputing dependencies.
50: libtool Whether libtool is used (yes/no).
51:
52: Report bugs to <bug-automake@gnu.org>.
53: EOF
54: exit $?
55: ;;
56: -v | --v*)
57: echo "depcomp $scriptversion"
58: exit $?
59: ;;
60: esac
61:
62: if test -z "$depmode" || test -z "$source" || test -z "$object"; then
63: echo "depcomp: Variables source, object and depmode must be set" 1>&2
64: exit 1
65: fi
66:
67: # Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
68: depfile=${depfile-`echo "$object" |
69: sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
70: tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
71:
72: rm -f "$tmpdepfile"
73:
74: # Some modes work just like other modes, but use different flags. We
75: # parameterize here, but still list the modes in the big case below,
76: # to make depend.m4 easier to write. Note that we *cannot* use a case
77: # here, because this file can only contain one case statement.
78: if test "$depmode" = hp; then
79: # HP compiler uses -M and no extra arg.
80: gccflag=-M
81: depmode=gcc
82: fi
83:
84: if test "$depmode" = dashXmstdout; then
85: # This is just like dashmstdout with a different argument.
86: dashmflag=-xM
87: depmode=dashmstdout
88: fi
89:
90: case "$depmode" in
91: gcc3)
92: ## gcc 3 implements dependency tracking that does exactly what
93: ## we want. Yay! Note: for some reason libtool 1.4 doesn't like
94: ## it if -MD -MP comes after the -MF stuff. Hmm.
95: ## Unfortunately, FreeBSD c89 acceptance of flags depends upon
96: ## the command line argument order; so add the flags where they
97: ## appear in depend2.am. Note that the slowdown incurred here
98: ## affects only configure: in makefiles, %FASTDEP% shortcuts this.
99: for arg
100: do
101: case $arg in
102: -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
103: *) set fnord "$@" "$arg" ;;
104: esac
105: shift # fnord
106: shift # $arg
107: done
108: "$@"
109: stat=$?
110: if test $stat -eq 0; then :
111: else
112: rm -f "$tmpdepfile"
113: exit $stat
114: fi
115: mv "$tmpdepfile" "$depfile"
116: ;;
117:
118: gcc)
119: ## There are various ways to get dependency output from gcc. Here's
120: ## why we pick this rather obscure method:
121: ## - Don't want to use -MD because we'd like the dependencies to end
122: ## up in a subdir. Having to rename by hand is ugly.
123: ## (We might end up doing this anyway to support other compilers.)
124: ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
125: ## -MM, not -M (despite what the docs say).
126: ## - Using -M directly means running the compiler twice (even worse
127: ## than renaming).
128: if test -z "$gccflag"; then
129: gccflag=-MD,
130: fi
131: "$@" -Wp,"$gccflag$tmpdepfile"
132: stat=$?
133: if test $stat -eq 0; then :
134: else
135: rm -f "$tmpdepfile"
136: exit $stat
137: fi
138: rm -f "$depfile"
139: echo "$object : \\" > "$depfile"
140: alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
141: ## The second -e expression handles DOS-style file names with drive letters.
142: sed -e 's/^[^:]*: / /' \
143: -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
144: ## This next piece of magic avoids the `deleted header file' problem.
145: ## The problem is that when a header file which appears in a .P file
146: ## is deleted, the dependency causes make to die (because there is
147: ## typically no way to rebuild the header). We avoid this by adding
148: ## dummy dependencies for each header file. Too bad gcc doesn't do
149: ## this for us directly.
150: tr ' ' '
151: ' < "$tmpdepfile" |
152: ## Some versions of gcc put a space before the `:'. On the theory
153: ## that the space means something, we add a space to the output as
154: ## well.
155: ## Some versions of the HPUX 10.20 sed can't process this invocation
156: ## correctly. Breaking it into two sed invocations is a workaround.
157: sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
158: rm -f "$tmpdepfile"
159: ;;
160:
161: hp)
162: # This case exists only to let depend.m4 do its work. It works by
163: # looking at the text of this script. This case will never be run,
164: # since it is checked for above.
165: exit 1
166: ;;
167:
168: sgi)
169: if test "$libtool" = yes; then
170: "$@" "-Wp,-MDupdate,$tmpdepfile"
171: else
172: "$@" -MDupdate "$tmpdepfile"
173: fi
174: stat=$?
175: if test $stat -eq 0; then :
176: else
177: rm -f "$tmpdepfile"
178: exit $stat
179: fi
180: rm -f "$depfile"
181:
182: if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
183: echo "$object : \\" > "$depfile"
184:
185: # Clip off the initial element (the dependent). Don't try to be
186: # clever and replace this with sed code, as IRIX sed won't handle
187: # lines with more than a fixed number of characters (4096 in
188: # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
189: # the IRIX cc adds comments like `#:fec' to the end of the
190: # dependency line.
191: tr ' ' '
192: ' < "$tmpdepfile" \
193: | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
194: tr '
195: ' ' ' >> $depfile
196: echo >> $depfile
197:
198: # The second pass generates a dummy entry for each header file.
199: tr ' ' '
200: ' < "$tmpdepfile" \
201: | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
202: >> $depfile
203: else
204: # The sourcefile does not contain any dependencies, so just
205: # store a dummy comment line, to avoid errors with the Makefile
206: # "include basename.Plo" scheme.
207: echo "#dummy" > "$depfile"
208: fi
209: rm -f "$tmpdepfile"
210: ;;
211:
212: aix)
213: # The C for AIX Compiler uses -M and outputs the dependencies
214: # in a .u file. In older versions, this file always lives in the
215: # current directory. Also, the AIX compiler puts `$object:' at the
216: # start of each line; $object doesn't have directory information.
217: # Version 6 uses the directory in both cases.
218: dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
219: test "x$dir" = "x$object" && dir=
220: base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
221: if test "$libtool" = yes; then
222: tmpdepfile1=$dir$base.u
223: tmpdepfile2=$base.u
224: tmpdepfile3=$dir.libs/$base.u
225: "$@" -Wc,-M
226: else
227: tmpdepfile1=$dir$base.u
228: tmpdepfile2=$dir$base.u
229: tmpdepfile3=$dir$base.u
230: "$@" -M
231: fi
232: stat=$?
233:
234: if test $stat -eq 0; then :
235: else
236: rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
237: exit $stat
238: fi
239:
240: for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
241: do
242: test -f "$tmpdepfile" && break
243: done
244: if test -f "$tmpdepfile"; then
245: # Each line is of the form `foo.o: dependent.h'.
246: # Do two passes, one to just change these to
247: # `$object: dependent.h' and one to simply `dependent.h:'.
248: sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
249: # That's a tab and a space in the [].
250: sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
251: else
252: # The sourcefile does not contain any dependencies, so just
253: # store a dummy comment line, to avoid errors with the Makefile
254: # "include basename.Plo" scheme.
255: echo "#dummy" > "$depfile"
256: fi
257: rm -f "$tmpdepfile"
258: ;;
259:
260: icc)
261: # Intel's C compiler understands `-MD -MF file'. However on
262: # icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
263: # ICC 7.0 will fill foo.d with something like
264: # foo.o: sub/foo.c
265: # foo.o: sub/foo.h
266: # which is wrong. We want:
267: # sub/foo.o: sub/foo.c
268: # sub/foo.o: sub/foo.h
269: # sub/foo.c:
270: # sub/foo.h:
271: # ICC 7.1 will output
272: # foo.o: sub/foo.c sub/foo.h
273: # and will wrap long lines using \ :
274: # foo.o: sub/foo.c ... \
275: # sub/foo.h ... \
276: # ...
277:
278: "$@" -MD -MF "$tmpdepfile"
279: stat=$?
280: if test $stat -eq 0; then :
281: else
282: rm -f "$tmpdepfile"
283: exit $stat
284: fi
285: rm -f "$depfile"
286: # Each line is of the form `foo.o: dependent.h',
287: # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
288: # Do two passes, one to just change these to
289: # `$object: dependent.h' and one to simply `dependent.h:'.
290: sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
291: # Some versions of the HPUX 10.20 sed can't process this invocation
292: # correctly. Breaking it into two sed invocations is a workaround.
293: sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
294: sed -e 's/$/ :/' >> "$depfile"
295: rm -f "$tmpdepfile"
296: ;;
297:
298: hp2)
299: # The "hp" stanza above does not work with aCC (C++) and HP's ia64
300: # compilers, which have integrated preprocessors. The correct option
301: # to use with these is +Maked; it writes dependencies to a file named
302: # 'foo.d', which lands next to the object file, wherever that
303: # happens to be.
304: # Much of this is similar to the tru64 case; see comments there.
305: dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
306: test "x$dir" = "x$object" && dir=
307: base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
308: if test "$libtool" = yes; then
309: tmpdepfile1=$dir$base.d
310: tmpdepfile2=$dir.libs/$base.d
311: "$@" -Wc,+Maked
312: else
313: tmpdepfile1=$dir$base.d
314: tmpdepfile2=$dir$base.d
315: "$@" +Maked
316: fi
317: stat=$?
318: if test $stat -eq 0; then :
319: else
320: rm -f "$tmpdepfile1" "$tmpdepfile2"
321: exit $stat
322: fi
323:
324: for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
325: do
326: test -f "$tmpdepfile" && break
327: done
328: if test -f "$tmpdepfile"; then
329: sed -e "s,^.*\.[a-z]*:,$object:," "$tmpdepfile" > "$depfile"
330: # Add `dependent.h:' lines.
331: sed -ne '2,${; s/^ *//; s/ \\*$//; s/$/:/; p;}' "$tmpdepfile" >> "$depfile"
332: else
333: echo "#dummy" > "$depfile"
334: fi
335: rm -f "$tmpdepfile" "$tmpdepfile2"
336: ;;
337:
338: tru64)
339: # The Tru64 compiler uses -MD to generate dependencies as a side
340: # effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
341: # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
342: # dependencies in `foo.d' instead, so we check for that too.
343: # Subdirectories are respected.
344: dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
345: test "x$dir" = "x$object" && dir=
346: base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
347:
348: if test "$libtool" = yes; then
349: # With Tru64 cc, shared objects can also be used to make a
350: # static library. This mechanism is used in libtool 1.4 series to
351: # handle both shared and static libraries in a single compilation.
352: # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
353: #
354: # With libtool 1.5 this exception was removed, and libtool now
355: # generates 2 separate objects for the 2 libraries. These two
356: # compilations output dependencies in $dir.libs/$base.o.d and
357: # in $dir$base.o.d. We have to check for both files, because
358: # one of the two compilations can be disabled. We should prefer
359: # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
360: # automatically cleaned when .libs/ is deleted, while ignoring
361: # the former would cause a distcleancheck panic.
362: tmpdepfile1=$dir.libs/$base.lo.d # libtool 1.4
363: tmpdepfile2=$dir$base.o.d # libtool 1.5
364: tmpdepfile3=$dir.libs/$base.o.d # libtool 1.5
365: tmpdepfile4=$dir.libs/$base.d # Compaq CCC V6.2-504
366: "$@" -Wc,-MD
367: else
368: tmpdepfile1=$dir$base.o.d
369: tmpdepfile2=$dir$base.d
370: tmpdepfile3=$dir$base.d
371: tmpdepfile4=$dir$base.d
372: "$@" -MD
373: fi
374:
375: stat=$?
376: if test $stat -eq 0; then :
377: else
378: rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
379: exit $stat
380: fi
381:
382: for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
383: do
384: test -f "$tmpdepfile" && break
385: done
386: if test -f "$tmpdepfile"; then
387: sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
388: # That's a tab and a space in the [].
389: sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
390: else
391: echo "#dummy" > "$depfile"
392: fi
393: rm -f "$tmpdepfile"
394: ;;
395:
396: #nosideeffect)
397: # This comment above is used by automake to tell side-effect
398: # dependency tracking mechanisms from slower ones.
399:
400: dashmstdout)
401: # Important note: in order to support this mode, a compiler *must*
402: # always write the preprocessed file to stdout, regardless of -o.
403: "$@" || exit $?
404:
405: # Remove the call to Libtool.
406: if test "$libtool" = yes; then
407: while test $1 != '--mode=compile'; do
408: shift
409: done
410: shift
411: fi
412:
413: # Remove `-o $object'.
414: IFS=" "
415: for arg
416: do
417: case $arg in
418: -o)
419: shift
420: ;;
421: $object)
422: shift
423: ;;
424: *)
425: set fnord "$@" "$arg"
426: shift # fnord
427: shift # $arg
428: ;;
429: esac
430: done
431:
432: test -z "$dashmflag" && dashmflag=-M
433: # Require at least two characters before searching for `:'
434: # in the target name. This is to cope with DOS-style filenames:
435: # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
436: "$@" $dashmflag |
437: sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
438: rm -f "$depfile"
439: cat < "$tmpdepfile" > "$depfile"
440: tr ' ' '
441: ' < "$tmpdepfile" | \
442: ## Some versions of the HPUX 10.20 sed can't process this invocation
443: ## correctly. Breaking it into two sed invocations is a workaround.
444: sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
445: rm -f "$tmpdepfile"
446: ;;
447:
448: dashXmstdout)
449: # This case only exists to satisfy depend.m4. It is never actually
450: # run, as this mode is specially recognized in the preamble.
451: exit 1
452: ;;
453:
454: makedepend)
455: "$@" || exit $?
456: # Remove any Libtool call
457: if test "$libtool" = yes; then
458: while test $1 != '--mode=compile'; do
459: shift
460: done
461: shift
462: fi
463: # X makedepend
464: shift
465: cleared=no
466: for arg in "$@"; do
467: case $cleared in
468: no)
469: set ""; shift
470: cleared=yes ;;
471: esac
472: case "$arg" in
473: -D*|-I*)
474: set fnord "$@" "$arg"; shift ;;
475: # Strip any option that makedepend may not understand. Remove
476: # the object too, otherwise makedepend will parse it as a source file.
477: -*|$object)
478: ;;
479: *)
480: set fnord "$@" "$arg"; shift ;;
481: esac
482: done
483: obj_suffix="`echo $object | sed 's/^.*\././'`"
484: touch "$tmpdepfile"
485: ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
486: rm -f "$depfile"
487: cat < "$tmpdepfile" > "$depfile"
488: sed '1,2d' "$tmpdepfile" | tr ' ' '
489: ' | \
490: ## Some versions of the HPUX 10.20 sed can't process this invocation
491: ## correctly. Breaking it into two sed invocations is a workaround.
492: sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
493: rm -f "$tmpdepfile" "$tmpdepfile".bak
494: ;;
495:
496: cpp)
497: # Important note: in order to support this mode, a compiler *must*
498: # always write the preprocessed file to stdout.
499: "$@" || exit $?
500:
501: # Remove the call to Libtool.
502: if test "$libtool" = yes; then
503: while test $1 != '--mode=compile'; do
504: shift
505: done
506: shift
507: fi
508:
509: # Remove `-o $object'.
510: IFS=" "
511: for arg
512: do
513: case $arg in
514: -o)
515: shift
516: ;;
517: $object)
518: shift
519: ;;
520: *)
521: set fnord "$@" "$arg"
522: shift # fnord
523: shift # $arg
524: ;;
525: esac
526: done
527:
528: "$@" -E |
529: sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
530: -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
531: sed '$ s: \\$::' > "$tmpdepfile"
532: rm -f "$depfile"
533: echo "$object : \\" > "$depfile"
534: cat < "$tmpdepfile" >> "$depfile"
535: sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
536: rm -f "$tmpdepfile"
537: ;;
538:
539: msvisualcpp)
540: # Important note: in order to support this mode, a compiler *must*
541: # always write the preprocessed file to stdout, regardless of -o,
542: # because we must use -o when running libtool.
543: "$@" || exit $?
544: IFS=" "
545: for arg
546: do
547: case "$arg" in
548: "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
549: set fnord "$@"
550: shift
551: shift
552: ;;
553: *)
554: set fnord "$@" "$arg"
555: shift
556: shift
557: ;;
558: esac
559: done
560: "$@" -E |
561: sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
562: rm -f "$depfile"
563: echo "$object : \\" > "$depfile"
564: . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile"
565: echo " " >> "$depfile"
566: . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
567: rm -f "$tmpdepfile"
568: ;;
569:
570: none)
571: exec "$@"
572: ;;
573:
574: *)
575: echo "Unknown depmode $depmode" 1>&2
576: exit 1
577: ;;
578: esac
579:
580: exit 0
581:
582: # Local Variables:
583: # mode: shell-script
584: # sh-indentation: 2
585: # eval: (add-hook 'write-file-hooks 'time-stamp)
586: # time-stamp-start: "scriptversion="
587: # time-stamp-format: "%:y-%02m-%02d.%02H"
588: # time-stamp-end: "$"
589: # End:
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