Annotation of parser3/depcomp, revision 1.4
1.1 paf 1: #! /bin/sh
1.2 moko 2: # depcomp - compile a program generating dependencies as side-effects
3:
1.4 ! moko 4: scriptversion=2024-06-19.01; # UTC
1.1 paf 5:
1.4 ! moko 6: # Copyright (C) 1999-2024 Free Software Foundation, Inc.
1.1 paf 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
1.4 ! moko 19: # along with this program. If not, see <https://www.gnu.org/licenses/>.
1.1 paf 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:
1.2 moko 28: case $1 in
29: '')
1.3 moko 30: echo "$0: No command. Try '$0 --help' for more information." 1>&2
31: exit 1;
32: ;;
1.2 moko 33: -h | --h*)
34: cat <<\EOF
35: Usage: depcomp [--help] [--version] PROGRAM [ARGS]
36:
37: Run PROGRAMS ARGS to compile a file, generating dependencies
38: as side-effects.
39:
40: Environment variables:
41: depmode Dependency tracking mode.
1.3 moko 42: source Source file read by 'PROGRAMS ARGS'.
43: object Object file output by 'PROGRAMS ARGS'.
1.2 moko 44: DEPDIR directory where to store dependencies.
45: depfile Dependency file to output.
1.3 moko 46: tmpdepfile Temporary file to use when outputting dependencies.
1.2 moko 47: libtool Whether libtool is used (yes/no).
48:
49: Report bugs to <bug-automake@gnu.org>.
1.4 ! moko 50: GNU Automake home page: <https://www.gnu.org/software/automake/>.
! 51: General help using GNU software: <https://www.gnu.org/gethelp/>.
1.2 moko 52: EOF
53: exit $?
54: ;;
55: -v | --v*)
1.4 ! moko 56: echo "depcomp (GNU Automake) $scriptversion"
1.2 moko 57: exit $?
58: ;;
59: esac
60:
1.3 moko 61: # Get the directory component of the given path, and save it in the
62: # global variables '$dir'. Note that this directory component will
63: # be either empty or ending with a '/' character. This is deliberate.
64: set_dir_from ()
65: {
66: case $1 in
67: */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;;
68: *) dir=;;
69: esac
70: }
71:
72: # Get the suffix-stripped basename of the given path, and save it the
73: # global variable '$base'.
74: set_base_from ()
75: {
76: base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'`
77: }
78:
79: # If no dependency file was actually created by the compiler invocation,
80: # we still have to create a dummy depfile, to avoid errors with the
81: # Makefile "include basename.Plo" scheme.
82: make_dummy_depfile ()
83: {
84: echo "#dummy" > "$depfile"
85: }
86:
87: # Factor out some common post-processing of the generated depfile.
88: # Requires the auxiliary global variable '$tmpdepfile' to be set.
89: aix_post_process_depfile ()
90: {
91: # If the compiler actually managed to produce a dependency file,
92: # post-process it.
93: if test -f "$tmpdepfile"; then
94: # Each line is of the form 'foo.o: dependency.h'.
95: # Do two passes, one to just change these to
96: # $object: dependency.h
97: # and one to simply output
98: # dependency.h:
99: # which is needed to avoid the deleted-header problem.
100: { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile"
101: sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile"
102: } > "$depfile"
103: rm -f "$tmpdepfile"
104: else
105: make_dummy_depfile
106: fi
107: }
108:
109: # A tabulation character.
110: tab=' '
111: # A newline character.
112: nl='
113: '
114: # Character ranges might be problematic outside the C locale.
115: # These definitions help.
116: upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ
117: lower=abcdefghijklmnopqrstuvwxyz
118: alpha=${upper}${lower}
119:
1.1 paf 120: if test -z "$depmode" || test -z "$source" || test -z "$object"; then
121: echo "depcomp: Variables source, object and depmode must be set" 1>&2
122: exit 1
123: fi
124:
1.2 moko 125: # Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
126: depfile=${depfile-`echo "$object" |
127: sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
1.1 paf 128: tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
129:
130: rm -f "$tmpdepfile"
131:
1.4 ! moko 132: # Avoid interference from the environment.
1.3 moko 133: gccflag= dashmflag=
134:
1.1 paf 135: # Some modes work just like other modes, but use different flags. We
136: # parameterize here, but still list the modes in the big case below,
137: # to make depend.m4 easier to write. Note that we *cannot* use a case
138: # here, because this file can only contain one case statement.
139: if test "$depmode" = hp; then
140: # HP compiler uses -M and no extra arg.
141: gccflag=-M
142: depmode=gcc
143: fi
144:
145: if test "$depmode" = dashXmstdout; then
1.3 moko 146: # This is just like dashmstdout with a different argument.
147: dashmflag=-xM
148: depmode=dashmstdout
1.1 paf 149: fi
150:
1.2 moko 151: cygpath_u="cygpath -u -f -"
152: if test "$depmode" = msvcmsys; then
1.3 moko 153: # This is just like msvisualcpp but w/o cygpath translation.
154: # Just convert the backslash-escaped backslashes to single forward
155: # slashes to satisfy depend.m4
156: cygpath_u='sed s,\\\\,/,g'
157: depmode=msvisualcpp
158: fi
159:
160: if test "$depmode" = msvc7msys; then
161: # This is just like msvc7 but w/o cygpath translation.
162: # Just convert the backslash-escaped backslashes to single forward
163: # slashes to satisfy depend.m4
164: cygpath_u='sed s,\\\\,/,g'
165: depmode=msvc7
166: fi
167:
168: if test "$depmode" = xlc; then
169: # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information.
170: gccflag=-qmakedep=gcc,-MF
171: depmode=gcc
1.2 moko 172: fi
173:
1.1 paf 174: case "$depmode" in
175: gcc3)
176: ## gcc 3 implements dependency tracking that does exactly what
177: ## we want. Yay! Note: for some reason libtool 1.4 doesn't like
178: ## it if -MD -MP comes after the -MF stuff. Hmm.
1.2 moko 179: ## Unfortunately, FreeBSD c89 acceptance of flags depends upon
180: ## the command line argument order; so add the flags where they
181: ## appear in depend2.am. Note that the slowdown incurred here
182: ## affects only configure: in makefiles, %FASTDEP% shortcuts this.
183: for arg
184: do
185: case $arg in
186: -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
187: *) set fnord "$@" "$arg" ;;
188: esac
189: shift # fnord
190: shift # $arg
191: done
192: "$@"
1.1 paf 193: stat=$?
1.3 moko 194: if test $stat -ne 0; then
1.1 paf 195: rm -f "$tmpdepfile"
196: exit $stat
197: fi
198: mv "$tmpdepfile" "$depfile"
199: ;;
200:
201: gcc)
1.4 ! moko 202: ## Note that this doesn't just cater to obsolete pre-3.x GCC compilers.
! 203: ## but also to in-use compilers like IBM xlc/xlC and the HP C compiler.
1.3 moko 204: ## (see the conditional assignment to $gccflag above).
1.1 paf 205: ## There are various ways to get dependency output from gcc. Here's
206: ## why we pick this rather obscure method:
207: ## - Don't want to use -MD because we'd like the dependencies to end
208: ## up in a subdir. Having to rename by hand is ugly.
209: ## (We might end up doing this anyway to support other compilers.)
210: ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
1.3 moko 211: ## -MM, not -M (despite what the docs say). Also, it might not be
212: ## supported by the other compilers which use the 'gcc' depmode.
1.1 paf 213: ## - Using -M directly means running the compiler twice (even worse
214: ## than renaming).
215: if test -z "$gccflag"; then
216: gccflag=-MD,
217: fi
218: "$@" -Wp,"$gccflag$tmpdepfile"
219: stat=$?
1.3 moko 220: if test $stat -ne 0; then
1.1 paf 221: rm -f "$tmpdepfile"
222: exit $stat
223: fi
224: rm -f "$depfile"
225: echo "$object : \\" > "$depfile"
1.3 moko 226: # The second -e expression handles DOS-style file names with drive
227: # letters.
1.1 paf 228: sed -e 's/^[^:]*: / /' \
229: -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
1.3 moko 230: ## This next piece of magic avoids the "deleted header file" problem.
1.1 paf 231: ## The problem is that when a header file which appears in a .P file
232: ## is deleted, the dependency causes make to die (because there is
233: ## typically no way to rebuild the header). We avoid this by adding
234: ## dummy dependencies for each header file. Too bad gcc doesn't do
235: ## this for us directly.
1.3 moko 236: ## Some versions of gcc put a space before the ':'. On the theory
1.1 paf 237: ## that the space means something, we add a space to the output as
1.3 moko 238: ## well. hp depmode also adds that space, but also prefixes the VPATH
239: ## to the object. Take care to not repeat it in the output.
1.1 paf 240: ## Some versions of the HPUX 10.20 sed can't process this invocation
241: ## correctly. Breaking it into two sed invocations is a workaround.
1.3 moko 242: tr ' ' "$nl" < "$tmpdepfile" \
243: | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \
244: | sed -e 's/$/ :/' >> "$depfile"
1.1 paf 245: rm -f "$tmpdepfile"
246: ;;
247:
248: hp)
249: # This case exists only to let depend.m4 do its work. It works by
250: # looking at the text of this script. This case will never be run,
251: # since it is checked for above.
252: exit 1
253: ;;
254:
255: sgi)
256: if test "$libtool" = yes; then
257: "$@" "-Wp,-MDupdate,$tmpdepfile"
258: else
259: "$@" -MDupdate "$tmpdepfile"
260: fi
261: stat=$?
1.3 moko 262: if test $stat -ne 0; then
1.1 paf 263: rm -f "$tmpdepfile"
264: exit $stat
265: fi
266: rm -f "$depfile"
267:
268: if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
269: echo "$object : \\" > "$depfile"
270: # Clip off the initial element (the dependent). Don't try to be
271: # clever and replace this with sed code, as IRIX sed won't handle
272: # lines with more than a fixed number of characters (4096 in
273: # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
1.3 moko 274: # the IRIX cc adds comments like '#:fec' to the end of the
1.1 paf 275: # dependency line.
1.3 moko 276: tr ' ' "$nl" < "$tmpdepfile" \
277: | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \
278: | tr "$nl" ' ' >> "$depfile"
1.2 moko 279: echo >> "$depfile"
1.1 paf 280: # The second pass generates a dummy entry for each header file.
1.3 moko 281: tr ' ' "$nl" < "$tmpdepfile" \
282: | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
283: >> "$depfile"
1.1 paf 284: else
1.3 moko 285: make_dummy_depfile
1.1 paf 286: fi
287: rm -f "$tmpdepfile"
288: ;;
289:
1.3 moko 290: xlc)
291: # This case exists only to let depend.m4 do its work. It works by
292: # looking at the text of this script. This case will never be run,
293: # since it is checked for above.
294: exit 1
295: ;;
296:
1.1 paf 297: aix)
298: # The C for AIX Compiler uses -M and outputs the dependencies
1.2 moko 299: # in a .u file. In older versions, this file always lives in the
1.3 moko 300: # current directory. Also, the AIX compiler puts '$object:' at the
1.2 moko 301: # start of each line; $object doesn't have directory information.
302: # Version 6 uses the directory in both cases.
1.3 moko 303: set_dir_from "$object"
304: set_base_from "$object"
1.1 paf 305: if test "$libtool" = yes; then
1.2 moko 306: tmpdepfile1=$dir$base.u
307: tmpdepfile2=$base.u
308: tmpdepfile3=$dir.libs/$base.u
1.1 paf 309: "$@" -Wc,-M
310: else
1.2 moko 311: tmpdepfile1=$dir$base.u
312: tmpdepfile2=$dir$base.u
313: tmpdepfile3=$dir$base.u
1.1 paf 314: "$@" -M
315: fi
1.2 moko 316: stat=$?
1.3 moko 317: if test $stat -ne 0; then
1.2 moko 318: rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
1.1 paf 319: exit $stat
320: fi
321:
1.2 moko 322: for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
323: do
324: test -f "$tmpdepfile" && break
325: done
1.3 moko 326: aix_post_process_depfile
327: ;;
328:
329: tcc)
330: # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26
331: # FIXME: That version still under development at the moment of writing.
332: # Make that this statement remains true also for stable, released
333: # versions.
334: # It will wrap lines (doesn't matter whether long or short) with a
335: # trailing '\', as in:
336: #
337: # foo.o : \
338: # foo.c \
339: # foo.h \
340: #
341: # It will put a trailing '\' even on the last line, and will use leading
342: # spaces rather than leading tabs (at least since its commit 0394caf7
343: # "Emit spaces for -MD").
344: "$@" -MD -MF "$tmpdepfile"
345: stat=$?
346: if test $stat -ne 0; then
347: rm -f "$tmpdepfile"
348: exit $stat
1.1 paf 349: fi
1.3 moko 350: rm -f "$depfile"
351: # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'.
352: # We have to change lines of the first kind to '$object: \'.
353: sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile"
354: # And for each line of the second kind, we have to emit a 'dep.h:'
355: # dummy dependency, to avoid the deleted-header problem.
356: sed -n -e 's|^ *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile"
1.1 paf 357: rm -f "$tmpdepfile"
358: ;;
359:
1.3 moko 360: ## The order of this option in the case statement is important, since the
361: ## shell code in configure will try each of these formats in the order
362: ## listed in this file. A plain '-MD' option would be understood by many
363: ## compilers, so we must ensure this comes after the gcc and icc options.
364: pgcc)
365: # Portland's C compiler understands '-MD'.
366: # Will always output deps to 'file.d' where file is the root name of the
367: # source file under compilation, even if file resides in a subdirectory.
368: # The object file name does not affect the name of the '.d' file.
369: # pgcc 10.2 will output
1.2 moko 370: # foo.o: sub/foo.c sub/foo.h
1.3 moko 371: # and will wrap long lines using '\' :
1.2 moko 372: # foo.o: sub/foo.c ... \
373: # sub/foo.h ... \
374: # ...
1.3 moko 375: set_dir_from "$object"
376: # Use the source, not the object, to determine the base name, since
377: # that's sadly what pgcc will do too.
378: set_base_from "$source"
379: tmpdepfile=$base.d
380:
381: # For projects that build the same source file twice into different object
382: # files, the pgcc approach of using the *source* file root name can cause
383: # problems in parallel builds. Use a locking strategy to avoid stomping on
384: # the same $tmpdepfile.
385: lockdir=$base.d-lock
386: trap "
387: echo '$0: caught signal, cleaning up...' >&2
388: rmdir '$lockdir'
389: exit 1
390: " 1 2 13 15
391: numtries=100
392: i=$numtries
393: while test $i -gt 0; do
394: # mkdir is a portable test-and-set.
395: if mkdir "$lockdir" 2>/dev/null; then
396: # This process acquired the lock.
397: "$@" -MD
398: stat=$?
399: # Release the lock.
400: rmdir "$lockdir"
401: break
402: else
403: # If the lock is being held by a different process, wait
404: # until the winning process is done or we timeout.
405: while test -d "$lockdir" && test $i -gt 0; do
406: sleep 1
407: i=`expr $i - 1`
408: done
409: fi
410: i=`expr $i - 1`
411: done
412: trap - 1 2 13 15
413: if test $i -le 0; then
414: echo "$0: failed to acquire lock after $numtries attempts" >&2
415: echo "$0: check lockdir '$lockdir'" >&2
416: exit 1
417: fi
1.2 moko 418:
1.3 moko 419: if test $stat -ne 0; then
1.2 moko 420: rm -f "$tmpdepfile"
421: exit $stat
422: fi
423: rm -f "$depfile"
424: # Each line is of the form `foo.o: dependent.h',
425: # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
426: # Do two passes, one to just change these to
427: # `$object: dependent.h' and one to simply `dependent.h:'.
428: sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
429: # Some versions of the HPUX 10.20 sed can't process this invocation
430: # correctly. Breaking it into two sed invocations is a workaround.
1.3 moko 431: sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \
432: | sed -e 's/$/ :/' >> "$depfile"
1.2 moko 433: rm -f "$tmpdepfile"
434: ;;
435:
436: hp2)
437: # The "hp" stanza above does not work with aCC (C++) and HP's ia64
438: # compilers, which have integrated preprocessors. The correct option
439: # to use with these is +Maked; it writes dependencies to a file named
440: # 'foo.d', which lands next to the object file, wherever that
441: # happens to be.
442: # Much of this is similar to the tru64 case; see comments there.
1.3 moko 443: set_dir_from "$object"
444: set_base_from "$object"
1.2 moko 445: if test "$libtool" = yes; then
446: tmpdepfile1=$dir$base.d
447: tmpdepfile2=$dir.libs/$base.d
448: "$@" -Wc,+Maked
449: else
450: tmpdepfile1=$dir$base.d
451: tmpdepfile2=$dir$base.d
452: "$@" +Maked
453: fi
454: stat=$?
1.3 moko 455: if test $stat -ne 0; then
1.2 moko 456: rm -f "$tmpdepfile1" "$tmpdepfile2"
457: exit $stat
458: fi
459:
460: for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
461: do
462: test -f "$tmpdepfile" && break
463: done
464: if test -f "$tmpdepfile"; then
1.3 moko 465: sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile"
466: # Add 'dependent.h:' lines.
1.2 moko 467: sed -ne '2,${
1.3 moko 468: s/^ *//
469: s/ \\*$//
470: s/$/:/
471: p
472: }' "$tmpdepfile" >> "$depfile"
1.2 moko 473: else
1.3 moko 474: make_dummy_depfile
1.2 moko 475: fi
476: rm -f "$tmpdepfile" "$tmpdepfile2"
477: ;;
478:
1.1 paf 479: tru64)
1.3 moko 480: # The Tru64 compiler uses -MD to generate dependencies as a side
481: # effect. 'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'.
482: # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
483: # dependencies in 'foo.d' instead, so we check for that too.
484: # Subdirectories are respected.
485: set_dir_from "$object"
486: set_base_from "$object"
487:
488: if test "$libtool" = yes; then
489: # Libtool generates 2 separate objects for the 2 libraries. These
490: # two compilations output dependencies in $dir.libs/$base.o.d and
491: # in $dir$base.o.d. We have to check for both files, because
492: # one of the two compilations can be disabled. We should prefer
493: # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
494: # automatically cleaned when .libs/ is deleted, while ignoring
495: # the former would cause a distcleancheck panic.
496: tmpdepfile1=$dir$base.o.d # libtool 1.5
497: tmpdepfile2=$dir.libs/$base.o.d # Likewise.
498: tmpdepfile3=$dir.libs/$base.d # Compaq CCC V6.2-504
499: "$@" -Wc,-MD
500: else
501: tmpdepfile1=$dir$base.d
502: tmpdepfile2=$dir$base.d
503: tmpdepfile3=$dir$base.d
504: "$@" -MD
505: fi
506:
507: stat=$?
508: if test $stat -ne 0; then
509: rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
510: exit $stat
511: fi
512:
513: for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
514: do
515: test -f "$tmpdepfile" && break
516: done
517: # Same post-processing that is required for AIX mode.
518: aix_post_process_depfile
519: ;;
520:
521: msvc7)
522: if test "$libtool" = yes; then
523: showIncludes=-Wc,-showIncludes
524: else
525: showIncludes=-showIncludes
526: fi
527: "$@" $showIncludes > "$tmpdepfile"
528: stat=$?
529: grep -v '^Note: including file: ' "$tmpdepfile"
530: if test $stat -ne 0; then
531: rm -f "$tmpdepfile"
532: exit $stat
533: fi
534: rm -f "$depfile"
535: echo "$object : \\" > "$depfile"
536: # The first sed program below extracts the file names and escapes
537: # backslashes for cygpath. The second sed program outputs the file
538: # name when reading, but also accumulates all include files in the
539: # hold buffer in order to output them again at the end. This only
540: # works with sed implementations that can handle large buffers.
541: sed < "$tmpdepfile" -n '
542: /^Note: including file: *\(.*\)/ {
543: s//\1/
544: s/\\/\\\\/g
545: p
546: }' | $cygpath_u | sort -u | sed -n '
547: s/ /\\ /g
548: s/\(.*\)/'"$tab"'\1 \\/p
549: s/.\(.*\) \\/\1:/
550: H
551: $ {
552: s/.*/'"$tab"'/
553: G
554: p
555: }' >> "$depfile"
556: echo >> "$depfile" # make sure the fragment doesn't end with a backslash
557: rm -f "$tmpdepfile"
558: ;;
1.1 paf 559:
1.3 moko 560: msvc7msys)
561: # This case exists only to let depend.m4 do its work. It works by
562: # looking at the text of this script. This case will never be run,
563: # since it is checked for above.
564: exit 1
565: ;;
1.1 paf 566:
567: #nosideeffect)
568: # This comment above is used by automake to tell side-effect
569: # dependency tracking mechanisms from slower ones.
570:
571: dashmstdout)
572: # Important note: in order to support this mode, a compiler *must*
1.2 moko 573: # always write the preprocessed file to stdout, regardless of -o.
1.1 paf 574: "$@" || exit $?
575:
576: # Remove the call to Libtool.
577: if test "$libtool" = yes; then
1.2 moko 578: while test "X$1" != 'X--mode=compile'; do
1.1 paf 579: shift
580: done
581: shift
582: fi
583:
1.3 moko 584: # Remove '-o $object'.
1.1 paf 585: IFS=" "
586: for arg
587: do
588: case $arg in
589: -o)
590: shift
591: ;;
592: $object)
593: shift
594: ;;
595: *)
596: set fnord "$@" "$arg"
597: shift # fnord
598: shift # $arg
599: ;;
600: esac
601: done
602:
603: test -z "$dashmflag" && dashmflag=-M
1.3 moko 604: # Require at least two characters before searching for ':'
1.2 moko 605: # in the target name. This is to cope with DOS-style filenames:
1.3 moko 606: # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise.
1.2 moko 607: "$@" $dashmflag |
1.3 moko 608: sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile"
1.1 paf 609: rm -f "$depfile"
610: cat < "$tmpdepfile" > "$depfile"
1.3 moko 611: # Some versions of the HPUX 10.20 sed can't process this sed invocation
612: # correctly. Breaking it into two sed invocations is a workaround.
613: tr ' ' "$nl" < "$tmpdepfile" \
614: | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
615: | sed -e 's/$/ :/' >> "$depfile"
1.1 paf 616: rm -f "$tmpdepfile"
617: ;;
618:
619: dashXmstdout)
620: # This case only exists to satisfy depend.m4. It is never actually
621: # run, as this mode is specially recognized in the preamble.
622: exit 1
623: ;;
624:
625: makedepend)
626: "$@" || exit $?
1.2 moko 627: # Remove any Libtool call
628: if test "$libtool" = yes; then
629: while test "X$1" != 'X--mode=compile'; do
630: shift
631: done
632: shift
633: fi
1.1 paf 634: # X makedepend
635: shift
1.2 moko 636: cleared=no eat=no
637: for arg
638: do
1.1 paf 639: case $cleared in
640: no)
641: set ""; shift
642: cleared=yes ;;
643: esac
1.2 moko 644: if test $eat = yes; then
645: eat=no
646: continue
647: fi
1.1 paf 648: case "$arg" in
649: -D*|-I*)
650: set fnord "$@" "$arg"; shift ;;
1.2 moko 651: # Strip any option that makedepend may not understand. Remove
652: # the object too, otherwise makedepend will parse it as a source file.
653: -arch)
654: eat=yes ;;
655: -*|$object)
1.1 paf 656: ;;
657: *)
658: set fnord "$@" "$arg"; shift ;;
659: esac
660: done
1.2 moko 661: obj_suffix=`echo "$object" | sed 's/^.*\././'`
1.1 paf 662: touch "$tmpdepfile"
663: ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
664: rm -f "$depfile"
1.3 moko 665: # makedepend may prepend the VPATH from the source file name to the object.
666: # No need to regex-escape $object, excess matching of '.' is harmless.
667: sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile"
668: # Some versions of the HPUX 10.20 sed can't process the last invocation
669: # correctly. Breaking it into two sed invocations is a workaround.
670: sed '1,2d' "$tmpdepfile" \
671: | tr ' ' "$nl" \
672: | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
673: | sed -e 's/$/ :/' >> "$depfile"
1.1 paf 674: rm -f "$tmpdepfile" "$tmpdepfile".bak
675: ;;
676:
677: cpp)
678: # Important note: in order to support this mode, a compiler *must*
1.2 moko 679: # always write the preprocessed file to stdout.
1.1 paf 680: "$@" || exit $?
681:
682: # Remove the call to Libtool.
683: if test "$libtool" = yes; then
1.2 moko 684: while test "X$1" != 'X--mode=compile'; do
1.1 paf 685: shift
686: done
687: shift
688: fi
689:
1.3 moko 690: # Remove '-o $object'.
1.1 paf 691: IFS=" "
692: for arg
693: do
694: case $arg in
695: -o)
696: shift
697: ;;
698: $object)
699: shift
700: ;;
701: *)
702: set fnord "$@" "$arg"
703: shift # fnord
704: shift # $arg
705: ;;
706: esac
707: done
708:
1.3 moko 709: "$@" -E \
710: | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
711: -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
712: | sed '$ s: \\$::' > "$tmpdepfile"
1.1 paf 713: rm -f "$depfile"
714: echo "$object : \\" > "$depfile"
715: cat < "$tmpdepfile" >> "$depfile"
716: sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
717: rm -f "$tmpdepfile"
718: ;;
719:
720: msvisualcpp)
721: # Important note: in order to support this mode, a compiler *must*
1.2 moko 722: # always write the preprocessed file to stdout.
1.1 paf 723: "$@" || exit $?
1.2 moko 724:
725: # Remove the call to Libtool.
726: if test "$libtool" = yes; then
727: while test "X$1" != 'X--mode=compile'; do
728: shift
729: done
730: shift
731: fi
732:
1.1 paf 733: IFS=" "
734: for arg
735: do
736: case "$arg" in
1.2 moko 737: -o)
738: shift
739: ;;
740: $object)
741: shift
742: ;;
1.1 paf 743: "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
1.3 moko 744: set fnord "$@"
745: shift
746: shift
747: ;;
1.1 paf 748: *)
1.3 moko 749: set fnord "$@" "$arg"
750: shift
751: shift
752: ;;
1.1 paf 753: esac
754: done
1.2 moko 755: "$@" -E 2>/dev/null |
756: sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
1.1 paf 757: rm -f "$depfile"
758: echo "$object : \\" > "$depfile"
1.3 moko 759: sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile"
760: echo "$tab" >> "$depfile"
1.2 moko 761: sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
1.1 paf 762: rm -f "$tmpdepfile"
763: ;;
764:
1.2 moko 765: msvcmsys)
766: # This case exists only to let depend.m4 do its work. It works by
767: # looking at the text of this script. This case will never be run,
768: # since it is checked for above.
769: exit 1
770: ;;
771:
1.1 paf 772: none)
773: exec "$@"
774: ;;
775:
776: *)
777: echo "Unknown depmode $depmode" 1>&2
778: exit 1
779: ;;
780: esac
781:
782: exit 0
1.2 moko 783:
784: # Local Variables:
785: # mode: shell-script
786: # sh-indentation: 2
1.4 ! moko 787: # eval: (add-hook 'before-save-hook 'time-stamp)
1.2 moko 788: # time-stamp-start: "scriptversion="
789: # time-stamp-format: "%:y-%02m-%02d.%02H"
1.4 ! moko 790: # time-stamp-time-zone: "UTC0"
1.2 moko 791: # time-stamp-end: "; # UTC"
792: # End:
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