Annotation of embedaddon/ntp/depcomp, revision 1.1.1.1
1.1 misho 1: #! /bin/sh
2: # depcomp - compile a program generating dependencies as side-effects
3:
4: scriptversion=2005-07-09.11
5:
6: # Copyright (C) 1999, 2000, 2003, 2004, 2005 Free Software Foundation, Inc.
7:
8: # This program is free software; you can redistribute it and/or modify
9: # it under the terms of the GNU General Public License as published by
10: # the Free Software Foundation; either version 2, or (at your option)
11: # any later version.
12:
13: # This program is distributed in the hope that it will be useful,
14: # but WITHOUT ANY WARRANTY; without even the implied warranty of
15: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: # GNU General Public License for more details.
17:
18: # You should have received a copy of the GNU General Public License
19: # along with this program; if not, write to the Free Software
20: # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21: # 02110-1301, USA.
22:
23: # As a special exception to the GNU General Public License, if you
24: # distribute this file as part of a program that contains a
25: # configuration script generated by Autoconf, you may include it under
26: # the same distribution terms that you use for the rest of that program.
27:
28: # Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
29:
30: case $1 in
31: '')
32: echo "$0: No command. Try \`$0 --help' for more information." 1>&2
33: exit 1;
34: ;;
35: -h | --h*)
36: cat <<\EOF
37: Usage: depcomp [--help] [--version] PROGRAM [ARGS]
38:
39: Run PROGRAMS ARGS to compile a file, generating dependencies
40: as side-effects.
41:
42: Environment variables:
43: depmode Dependency tracking mode.
44: source Source file read by `PROGRAMS ARGS'.
45: object Object file output by `PROGRAMS ARGS'.
46: DEPDIR directory where to store dependencies.
47: depfile Dependency file to output.
48: tmpdepfile Temporary file to use when outputing dependencies.
49: libtool Whether libtool is used (yes/no).
50:
51: Report bugs to <bug-automake@gnu.org>.
52: EOF
53: exit $?
54: ;;
55: -v | --v*)
56: echo "depcomp $scriptversion"
57: exit $?
58: ;;
59: esac
60:
61: if test -z "$depmode" || test -z "$source" || test -z "$object"; then
62: echo "depcomp: Variables source, object and depmode must be set" 1>&2
63: exit 1
64: fi
65:
66: # Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
67: depfile=${depfile-`echo "$object" |
68: sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
69: tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
70:
71: rm -f "$tmpdepfile"
72:
73: # Some modes work just like other modes, but use different flags. We
74: # parameterize here, but still list the modes in the big case below,
75: # to make depend.m4 easier to write. Note that we *cannot* use a case
76: # here, because this file can only contain one case statement.
77: if test "$depmode" = hp; then
78: # HP compiler uses -M and no extra arg.
79: gccflag=-M
80: depmode=gcc
81: fi
82:
83: if test "$depmode" = dashXmstdout; then
84: # This is just like dashmstdout with a different argument.
85: dashmflag=-xM
86: depmode=dashmstdout
87: fi
88:
89: case "$depmode" in
90: gcc3)
91: ## gcc 3 implements dependency tracking that does exactly what
92: ## we want. Yay! Note: for some reason libtool 1.4 doesn't like
93: ## it if -MD -MP comes after the -MF stuff. Hmm.
94: "$@" -MT "$object" -MD -MP -MF "$tmpdepfile"
95: stat=$?
96: if test $stat -eq 0; then :
97: else
98: rm -f "$tmpdepfile"
99: exit $stat
100: fi
101: mv "$tmpdepfile" "$depfile"
102: ;;
103:
104: gcc)
105: ## There are various ways to get dependency output from gcc. Here's
106: ## why we pick this rather obscure method:
107: ## - Don't want to use -MD because we'd like the dependencies to end
108: ## up in a subdir. Having to rename by hand is ugly.
109: ## (We might end up doing this anyway to support other compilers.)
110: ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
111: ## -MM, not -M (despite what the docs say).
112: ## - Using -M directly means running the compiler twice (even worse
113: ## than renaming).
114: if test -z "$gccflag"; then
115: gccflag=-MD,
116: fi
117: "$@" -Wp,"$gccflag$tmpdepfile"
118: stat=$?
119: if test $stat -eq 0; then :
120: else
121: rm -f "$tmpdepfile"
122: exit $stat
123: fi
124: rm -f "$depfile"
125: echo "$object : \\" > "$depfile"
126: alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
127: ## The second -e expression handles DOS-style file names with drive letters.
128: sed -e 's/^[^:]*: / /' \
129: -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
130: ## This next piece of magic avoids the `deleted header file' problem.
131: ## The problem is that when a header file which appears in a .P file
132: ## is deleted, the dependency causes make to die (because there is
133: ## typically no way to rebuild the header). We avoid this by adding
134: ## dummy dependencies for each header file. Too bad gcc doesn't do
135: ## this for us directly.
136: tr ' ' '
137: ' < "$tmpdepfile" |
138: ## Some versions of gcc put a space before the `:'. On the theory
139: ## that the space means something, we add a space to the output as
140: ## well.
141: ## Some versions of the HPUX 10.20 sed can't process this invocation
142: ## correctly. Breaking it into two sed invocations is a workaround.
143: sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
144: rm -f "$tmpdepfile"
145: ;;
146:
147: hp)
148: # This case exists only to let depend.m4 do its work. It works by
149: # looking at the text of this script. This case will never be run,
150: # since it is checked for above.
151: exit 1
152: ;;
153:
154: sgi)
155: if test "$libtool" = yes; then
156: "$@" "-Wp,-MDupdate,$tmpdepfile"
157: else
158: "$@" -MDupdate "$tmpdepfile"
159: fi
160: stat=$?
161: if test $stat -eq 0; then :
162: else
163: rm -f "$tmpdepfile"
164: exit $stat
165: fi
166: rm -f "$depfile"
167:
168: if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
169: echo "$object : \\" > "$depfile"
170:
171: # Clip off the initial element (the dependent). Don't try to be
172: # clever and replace this with sed code, as IRIX sed won't handle
173: # lines with more than a fixed number of characters (4096 in
174: # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
175: # the IRIX cc adds comments like `#:fec' to the end of the
176: # dependency line.
177: tr ' ' '
178: ' < "$tmpdepfile" \
179: | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
180: tr '
181: ' ' ' >> $depfile
182: echo >> $depfile
183:
184: # The second pass generates a dummy entry for each header file.
185: tr ' ' '
186: ' < "$tmpdepfile" \
187: | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
188: >> $depfile
189: else
190: # The sourcefile does not contain any dependencies, so just
191: # store a dummy comment line, to avoid errors with the Makefile
192: # "include basename.Plo" scheme.
193: echo "#dummy" > "$depfile"
194: fi
195: rm -f "$tmpdepfile"
196: ;;
197:
198: aix)
199: # The C for AIX Compiler uses -M and outputs the dependencies
200: # in a .u file. In older versions, this file always lives in the
201: # current directory. Also, the AIX compiler puts `$object:' at the
202: # start of each line; $object doesn't have directory information.
203: # Version 6 uses the directory in both cases.
204: stripped=`echo "$object" | sed 's/\(.*\)\..*$/\1/'`
205: tmpdepfile="$stripped.u"
206: if test "$libtool" = yes; then
207: "$@" -Wc,-M
208: else
209: "$@" -M
210: fi
211: stat=$?
212:
213: if test -f "$tmpdepfile"; then :
214: else
215: stripped=`echo "$stripped" | sed 's,^.*/,,'`
216: tmpdepfile="$stripped.u"
217: fi
218:
219: if test $stat -eq 0; then :
220: else
221: rm -f "$tmpdepfile"
222: exit $stat
223: fi
224:
225: if test -f "$tmpdepfile"; then
226: outname="$stripped.o"
227: # Each line is of the form `foo.o: dependent.h'.
228: # Do two passes, one to just change these to
229: # `$object: dependent.h' and one to simply `dependent.h:'.
230: sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile"
231: sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
232: else
233: # The sourcefile does not contain any dependencies, so just
234: # store a dummy comment line, to avoid errors with the Makefile
235: # "include basename.Plo" scheme.
236: echo "#dummy" > "$depfile"
237: fi
238: rm -f "$tmpdepfile"
239: ;;
240:
241: icc)
242: # Intel's C compiler understands `-MD -MF file'. However on
243: # icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
244: # ICC 7.0 will fill foo.d with something like
245: # foo.o: sub/foo.c
246: # foo.o: sub/foo.h
247: # which is wrong. We want:
248: # sub/foo.o: sub/foo.c
249: # sub/foo.o: sub/foo.h
250: # sub/foo.c:
251: # sub/foo.h:
252: # ICC 7.1 will output
253: # foo.o: sub/foo.c sub/foo.h
254: # and will wrap long lines using \ :
255: # foo.o: sub/foo.c ... \
256: # sub/foo.h ... \
257: # ...
258:
259: "$@" -MD -MF "$tmpdepfile"
260: stat=$?
261: if test $stat -eq 0; then :
262: else
263: rm -f "$tmpdepfile"
264: exit $stat
265: fi
266: rm -f "$depfile"
267: # Each line is of the form `foo.o: dependent.h',
268: # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
269: # Do two passes, one to just change these to
270: # `$object: dependent.h' and one to simply `dependent.h:'.
271: sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
272: # Some versions of the HPUX 10.20 sed can't process this invocation
273: # correctly. Breaking it into two sed invocations is a workaround.
274: sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
275: sed -e 's/$/ :/' >> "$depfile"
276: rm -f "$tmpdepfile"
277: ;;
278:
279: tru64)
280: # The Tru64 compiler uses -MD to generate dependencies as a side
281: # effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
282: # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
283: # dependencies in `foo.d' instead, so we check for that too.
284: # Subdirectories are respected.
285: dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
286: test "x$dir" = "x$object" && dir=
287: base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
288:
289: if test "$libtool" = yes; then
290: # With Tru64 cc, shared objects can also be used to make a
291: # static library. This mecanism is used in libtool 1.4 series to
292: # handle both shared and static libraries in a single compilation.
293: # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
294: #
295: # With libtool 1.5 this exception was removed, and libtool now
296: # generates 2 separate objects for the 2 libraries. These two
297: # compilations output dependencies in in $dir.libs/$base.o.d and
298: # in $dir$base.o.d. We have to check for both files, because
299: # one of the two compilations can be disabled. We should prefer
300: # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
301: # automatically cleaned when .libs/ is deleted, while ignoring
302: # the former would cause a distcleancheck panic.
303: tmpdepfile1=$dir.libs/$base.lo.d # libtool 1.4
304: tmpdepfile2=$dir$base.o.d # libtool 1.5
305: tmpdepfile3=$dir.libs/$base.o.d # libtool 1.5
306: tmpdepfile4=$dir.libs/$base.d # Compaq CCC V6.2-504
307: "$@" -Wc,-MD
308: else
309: tmpdepfile1=$dir$base.o.d
310: tmpdepfile2=$dir$base.d
311: tmpdepfile3=$dir$base.d
312: tmpdepfile4=$dir$base.d
313: "$@" -MD
314: fi
315:
316: stat=$?
317: if test $stat -eq 0; then :
318: else
319: rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
320: exit $stat
321: fi
322:
323: for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
324: do
325: test -f "$tmpdepfile" && break
326: done
327: if test -f "$tmpdepfile"; then
328: sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
329: # That's a tab and a space in the [].
330: sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
331: else
332: echo "#dummy" > "$depfile"
333: fi
334: rm -f "$tmpdepfile"
335: ;;
336:
337: #nosideeffect)
338: # This comment above is used by automake to tell side-effect
339: # dependency tracking mechanisms from slower ones.
340:
341: dashmstdout)
342: # Important note: in order to support this mode, a compiler *must*
343: # always write the preprocessed file to stdout, regardless of -o.
344: "$@" || exit $?
345:
346: # Remove the call to Libtool.
347: if test "$libtool" = yes; then
348: while test $1 != '--mode=compile'; do
349: shift
350: done
351: shift
352: fi
353:
354: # Remove `-o $object'.
355: IFS=" "
356: for arg
357: do
358: case $arg in
359: -o)
360: shift
361: ;;
362: $object)
363: shift
364: ;;
365: *)
366: set fnord "$@" "$arg"
367: shift # fnord
368: shift # $arg
369: ;;
370: esac
371: done
372:
373: test -z "$dashmflag" && dashmflag=-M
374: # Require at least two characters before searching for `:'
375: # in the target name. This is to cope with DOS-style filenames:
376: # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
377: "$@" $dashmflag |
378: sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
379: rm -f "$depfile"
380: cat < "$tmpdepfile" > "$depfile"
381: tr ' ' '
382: ' < "$tmpdepfile" | \
383: ## Some versions of the HPUX 10.20 sed can't process this invocation
384: ## correctly. Breaking it into two sed invocations is a workaround.
385: sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
386: rm -f "$tmpdepfile"
387: ;;
388:
389: dashXmstdout)
390: # This case only exists to satisfy depend.m4. It is never actually
391: # run, as this mode is specially recognized in the preamble.
392: exit 1
393: ;;
394:
395: makedepend)
396: "$@" || exit $?
397: # Remove any Libtool call
398: if test "$libtool" = yes; then
399: while test $1 != '--mode=compile'; do
400: shift
401: done
402: shift
403: fi
404: # X makedepend
405: shift
406: cleared=no
407: for arg in "$@"; do
408: case $cleared in
409: no)
410: set ""; shift
411: cleared=yes ;;
412: esac
413: case "$arg" in
414: -D*|-I*)
415: set fnord "$@" "$arg"; shift ;;
416: # Strip any option that makedepend may not understand. Remove
417: # the object too, otherwise makedepend will parse it as a source file.
418: -*|$object)
419: ;;
420: *)
421: set fnord "$@" "$arg"; shift ;;
422: esac
423: done
424: obj_suffix="`echo $object | sed 's/^.*\././'`"
425: touch "$tmpdepfile"
426: ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
427: rm -f "$depfile"
428: cat < "$tmpdepfile" > "$depfile"
429: sed '1,2d' "$tmpdepfile" | tr ' ' '
430: ' | \
431: ## Some versions of the HPUX 10.20 sed can't process this invocation
432: ## correctly. Breaking it into two sed invocations is a workaround.
433: sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
434: rm -f "$tmpdepfile" "$tmpdepfile".bak
435: ;;
436:
437: cpp)
438: # Important note: in order to support this mode, a compiler *must*
439: # always write the preprocessed file to stdout.
440: "$@" || exit $?
441:
442: # Remove the call to Libtool.
443: if test "$libtool" = yes; then
444: while test $1 != '--mode=compile'; do
445: shift
446: done
447: shift
448: fi
449:
450: # Remove `-o $object'.
451: IFS=" "
452: for arg
453: do
454: case $arg in
455: -o)
456: shift
457: ;;
458: $object)
459: shift
460: ;;
461: *)
462: set fnord "$@" "$arg"
463: shift # fnord
464: shift # $arg
465: ;;
466: esac
467: done
468:
469: "$@" -E |
470: sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
471: -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
472: sed '$ s: \\$::' > "$tmpdepfile"
473: rm -f "$depfile"
474: echo "$object : \\" > "$depfile"
475: cat < "$tmpdepfile" >> "$depfile"
476: sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
477: rm -f "$tmpdepfile"
478: ;;
479:
480: msvisualcpp)
481: # Important note: in order to support this mode, a compiler *must*
482: # always write the preprocessed file to stdout, regardless of -o,
483: # because we must use -o when running libtool.
484: "$@" || exit $?
485: IFS=" "
486: for arg
487: do
488: case "$arg" in
489: "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
490: set fnord "$@"
491: shift
492: shift
493: ;;
494: *)
495: set fnord "$@" "$arg"
496: shift
497: shift
498: ;;
499: esac
500: done
501: "$@" -E |
502: sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
503: rm -f "$depfile"
504: echo "$object : \\" > "$depfile"
505: . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile"
506: echo " " >> "$depfile"
507: . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
508: rm -f "$tmpdepfile"
509: ;;
510:
511: none)
512: exec "$@"
513: ;;
514:
515: *)
516: echo "Unknown depmode $depmode" 1>&2
517: exit 1
518: ;;
519: esac
520:
521: exit 0
522:
523: # Local Variables:
524: # mode: shell-script
525: # sh-indentation: 2
526: # eval: (add-hook 'write-file-hooks 'time-stamp)
527: # time-stamp-start: "scriptversion="
528: # time-stamp-format: "%:y-%02m-%02d.%02H"
529: # time-stamp-end: "$"
530: # End:
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