Annotation of embedaddon/mtr/build-aux/depcomp, revision 1.1
1.1 ! misho 1: #! /bin/sh
! 2: # depcomp - compile a program generating dependencies as side-effects
! 3:
! 4: scriptversion=2013-05-30.07; # UTC
! 5:
! 6: # Copyright (C) 1999-2013 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, see <http://www.gnu.org/licenses/>.
! 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: case $1 in
! 29: '')
! 30: echo "$0: No command. Try '$0 --help' for more information." 1>&2
! 31: exit 1;
! 32: ;;
! 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.
! 42: source Source file read by 'PROGRAMS ARGS'.
! 43: object Object file output by 'PROGRAMS ARGS'.
! 44: DEPDIR directory where to store dependencies.
! 45: depfile Dependency file to output.
! 46: tmpdepfile Temporary file to use when outputting dependencies.
! 47: libtool Whether libtool is used (yes/no).
! 48:
! 49: Report bugs to <bug-automake@gnu.org>.
! 50: EOF
! 51: exit $?
! 52: ;;
! 53: -v | --v*)
! 54: echo "depcomp $scriptversion"
! 55: exit $?
! 56: ;;
! 57: esac
! 58:
! 59: # Get the directory component of the given path, and save it in the
! 60: # global variables '$dir'. Note that this directory component will
! 61: # be either empty or ending with a '/' character. This is deliberate.
! 62: set_dir_from ()
! 63: {
! 64: case $1 in
! 65: */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;;
! 66: *) dir=;;
! 67: esac
! 68: }
! 69:
! 70: # Get the suffix-stripped basename of the given path, and save it the
! 71: # global variable '$base'.
! 72: set_base_from ()
! 73: {
! 74: base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'`
! 75: }
! 76:
! 77: # If no dependency file was actually created by the compiler invocation,
! 78: # we still have to create a dummy depfile, to avoid errors with the
! 79: # Makefile "include basename.Plo" scheme.
! 80: make_dummy_depfile ()
! 81: {
! 82: echo "#dummy" > "$depfile"
! 83: }
! 84:
! 85: # Factor out some common post-processing of the generated depfile.
! 86: # Requires the auxiliary global variable '$tmpdepfile' to be set.
! 87: aix_post_process_depfile ()
! 88: {
! 89: # If the compiler actually managed to produce a dependency file,
! 90: # post-process it.
! 91: if test -f "$tmpdepfile"; then
! 92: # Each line is of the form 'foo.o: dependency.h'.
! 93: # Do two passes, one to just change these to
! 94: # $object: dependency.h
! 95: # and one to simply output
! 96: # dependency.h:
! 97: # which is needed to avoid the deleted-header problem.
! 98: { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile"
! 99: sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile"
! 100: } > "$depfile"
! 101: rm -f "$tmpdepfile"
! 102: else
! 103: make_dummy_depfile
! 104: fi
! 105: }
! 106:
! 107: # A tabulation character.
! 108: tab=' '
! 109: # A newline character.
! 110: nl='
! 111: '
! 112: # Character ranges might be problematic outside the C locale.
! 113: # These definitions help.
! 114: upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ
! 115: lower=abcdefghijklmnopqrstuvwxyz
! 116: digits=0123456789
! 117: alpha=${upper}${lower}
! 118:
! 119: if test -z "$depmode" || test -z "$source" || test -z "$object"; then
! 120: echo "depcomp: Variables source, object and depmode must be set" 1>&2
! 121: exit 1
! 122: fi
! 123:
! 124: # Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
! 125: depfile=${depfile-`echo "$object" |
! 126: sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
! 127: tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
! 128:
! 129: rm -f "$tmpdepfile"
! 130:
! 131: # Avoid interferences from the environment.
! 132: gccflag= dashmflag=
! 133:
! 134: # Some modes work just like other modes, but use different flags. We
! 135: # parameterize here, but still list the modes in the big case below,
! 136: # to make depend.m4 easier to write. Note that we *cannot* use a case
! 137: # here, because this file can only contain one case statement.
! 138: if test "$depmode" = hp; then
! 139: # HP compiler uses -M and no extra arg.
! 140: gccflag=-M
! 141: depmode=gcc
! 142: fi
! 143:
! 144: if test "$depmode" = dashXmstdout; then
! 145: # This is just like dashmstdout with a different argument.
! 146: dashmflag=-xM
! 147: depmode=dashmstdout
! 148: fi
! 149:
! 150: cygpath_u="cygpath -u -f -"
! 151: if test "$depmode" = msvcmsys; then
! 152: # This is just like msvisualcpp but w/o cygpath translation.
! 153: # Just convert the backslash-escaped backslashes to single forward
! 154: # slashes to satisfy depend.m4
! 155: cygpath_u='sed s,\\\\,/,g'
! 156: depmode=msvisualcpp
! 157: fi
! 158:
! 159: if test "$depmode" = msvc7msys; then
! 160: # This is just like msvc7 but w/o cygpath translation.
! 161: # Just convert the backslash-escaped backslashes to single forward
! 162: # slashes to satisfy depend.m4
! 163: cygpath_u='sed s,\\\\,/,g'
! 164: depmode=msvc7
! 165: fi
! 166:
! 167: if test "$depmode" = xlc; then
! 168: # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information.
! 169: gccflag=-qmakedep=gcc,-MF
! 170: depmode=gcc
! 171: fi
! 172:
! 173: case "$depmode" in
! 174: gcc3)
! 175: ## gcc 3 implements dependency tracking that does exactly what
! 176: ## we want. Yay! Note: for some reason libtool 1.4 doesn't like
! 177: ## it if -MD -MP comes after the -MF stuff. Hmm.
! 178: ## Unfortunately, FreeBSD c89 acceptance of flags depends upon
! 179: ## the command line argument order; so add the flags where they
! 180: ## appear in depend2.am. Note that the slowdown incurred here
! 181: ## affects only configure: in makefiles, %FASTDEP% shortcuts this.
! 182: for arg
! 183: do
! 184: case $arg in
! 185: -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
! 186: *) set fnord "$@" "$arg" ;;
! 187: esac
! 188: shift # fnord
! 189: shift # $arg
! 190: done
! 191: "$@"
! 192: stat=$?
! 193: if test $stat -ne 0; then
! 194: rm -f "$tmpdepfile"
! 195: exit $stat
! 196: fi
! 197: mv "$tmpdepfile" "$depfile"
! 198: ;;
! 199:
! 200: gcc)
! 201: ## Note that this doesn't just cater to obsosete pre-3.x GCC compilers.
! 202: ## but also to in-use compilers like IMB xlc/xlC and the HP C compiler.
! 203: ## (see the conditional assignment to $gccflag above).
! 204: ## There are various ways to get dependency output from gcc. Here's
! 205: ## why we pick this rather obscure method:
! 206: ## - Don't want to use -MD because we'd like the dependencies to end
! 207: ## up in a subdir. Having to rename by hand is ugly.
! 208: ## (We might end up doing this anyway to support other compilers.)
! 209: ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
! 210: ## -MM, not -M (despite what the docs say). Also, it might not be
! 211: ## supported by the other compilers which use the 'gcc' depmode.
! 212: ## - Using -M directly means running the compiler twice (even worse
! 213: ## than renaming).
! 214: if test -z "$gccflag"; then
! 215: gccflag=-MD,
! 216: fi
! 217: "$@" -Wp,"$gccflag$tmpdepfile"
! 218: stat=$?
! 219: if test $stat -ne 0; then
! 220: rm -f "$tmpdepfile"
! 221: exit $stat
! 222: fi
! 223: rm -f "$depfile"
! 224: echo "$object : \\" > "$depfile"
! 225: # The second -e expression handles DOS-style file names with drive
! 226: # letters.
! 227: sed -e 's/^[^:]*: / /' \
! 228: -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
! 229: ## This next piece of magic avoids the "deleted header file" problem.
! 230: ## The problem is that when a header file which appears in a .P file
! 231: ## is deleted, the dependency causes make to die (because there is
! 232: ## typically no way to rebuild the header). We avoid this by adding
! 233: ## dummy dependencies for each header file. Too bad gcc doesn't do
! 234: ## this for us directly.
! 235: ## Some versions of gcc put a space before the ':'. On the theory
! 236: ## that the space means something, we add a space to the output as
! 237: ## well. hp depmode also adds that space, but also prefixes the VPATH
! 238: ## to the object. Take care to not repeat it in the output.
! 239: ## Some versions of the HPUX 10.20 sed can't process this invocation
! 240: ## correctly. Breaking it into two sed invocations is a workaround.
! 241: tr ' ' "$nl" < "$tmpdepfile" \
! 242: | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \
! 243: | sed -e 's/$/ :/' >> "$depfile"
! 244: rm -f "$tmpdepfile"
! 245: ;;
! 246:
! 247: hp)
! 248: # This case exists only to let depend.m4 do its work. It works by
! 249: # looking at the text of this script. This case will never be run,
! 250: # since it is checked for above.
! 251: exit 1
! 252: ;;
! 253:
! 254: sgi)
! 255: if test "$libtool" = yes; then
! 256: "$@" "-Wp,-MDupdate,$tmpdepfile"
! 257: else
! 258: "$@" -MDupdate "$tmpdepfile"
! 259: fi
! 260: stat=$?
! 261: if test $stat -ne 0; then
! 262: rm -f "$tmpdepfile"
! 263: exit $stat
! 264: fi
! 265: rm -f "$depfile"
! 266:
! 267: if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
! 268: echo "$object : \\" > "$depfile"
! 269: # Clip off the initial element (the dependent). Don't try to be
! 270: # clever and replace this with sed code, as IRIX sed won't handle
! 271: # lines with more than a fixed number of characters (4096 in
! 272: # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
! 273: # the IRIX cc adds comments like '#:fec' to the end of the
! 274: # dependency line.
! 275: tr ' ' "$nl" < "$tmpdepfile" \
! 276: | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \
! 277: | tr "$nl" ' ' >> "$depfile"
! 278: echo >> "$depfile"
! 279: # The second pass generates a dummy entry for each header file.
! 280: tr ' ' "$nl" < "$tmpdepfile" \
! 281: | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
! 282: >> "$depfile"
! 283: else
! 284: make_dummy_depfile
! 285: fi
! 286: rm -f "$tmpdepfile"
! 287: ;;
! 288:
! 289: xlc)
! 290: # This case exists only to let depend.m4 do its work. It works by
! 291: # looking at the text of this script. This case will never be run,
! 292: # since it is checked for above.
! 293: exit 1
! 294: ;;
! 295:
! 296: aix)
! 297: # The C for AIX Compiler uses -M and outputs the dependencies
! 298: # in a .u file. In older versions, this file always lives in the
! 299: # current directory. Also, the AIX compiler puts '$object:' at the
! 300: # start of each line; $object doesn't have directory information.
! 301: # Version 6 uses the directory in both cases.
! 302: set_dir_from "$object"
! 303: set_base_from "$object"
! 304: if test "$libtool" = yes; then
! 305: tmpdepfile1=$dir$base.u
! 306: tmpdepfile2=$base.u
! 307: tmpdepfile3=$dir.libs/$base.u
! 308: "$@" -Wc,-M
! 309: else
! 310: tmpdepfile1=$dir$base.u
! 311: tmpdepfile2=$dir$base.u
! 312: tmpdepfile3=$dir$base.u
! 313: "$@" -M
! 314: fi
! 315: stat=$?
! 316: if test $stat -ne 0; then
! 317: rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
! 318: exit $stat
! 319: fi
! 320:
! 321: for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
! 322: do
! 323: test -f "$tmpdepfile" && break
! 324: done
! 325: aix_post_process_depfile
! 326: ;;
! 327:
! 328: tcc)
! 329: # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26
! 330: # FIXME: That version still under development at the moment of writing.
! 331: # Make that this statement remains true also for stable, released
! 332: # versions.
! 333: # It will wrap lines (doesn't matter whether long or short) with a
! 334: # trailing '\', as in:
! 335: #
! 336: # foo.o : \
! 337: # foo.c \
! 338: # foo.h \
! 339: #
! 340: # It will put a trailing '\' even on the last line, and will use leading
! 341: # spaces rather than leading tabs (at least since its commit 0394caf7
! 342: # "Emit spaces for -MD").
! 343: "$@" -MD -MF "$tmpdepfile"
! 344: stat=$?
! 345: if test $stat -ne 0; then
! 346: rm -f "$tmpdepfile"
! 347: exit $stat
! 348: fi
! 349: rm -f "$depfile"
! 350: # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'.
! 351: # We have to change lines of the first kind to '$object: \'.
! 352: sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile"
! 353: # And for each line of the second kind, we have to emit a 'dep.h:'
! 354: # dummy dependency, to avoid the deleted-header problem.
! 355: sed -n -e 's|^ *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile"
! 356: rm -f "$tmpdepfile"
! 357: ;;
! 358:
! 359: ## The order of this option in the case statement is important, since the
! 360: ## shell code in configure will try each of these formats in the order
! 361: ## listed in this file. A plain '-MD' option would be understood by many
! 362: ## compilers, so we must ensure this comes after the gcc and icc options.
! 363: pgcc)
! 364: # Portland's C compiler understands '-MD'.
! 365: # Will always output deps to 'file.d' where file is the root name of the
! 366: # source file under compilation, even if file resides in a subdirectory.
! 367: # The object file name does not affect the name of the '.d' file.
! 368: # pgcc 10.2 will output
! 369: # foo.o: sub/foo.c sub/foo.h
! 370: # and will wrap long lines using '\' :
! 371: # foo.o: sub/foo.c ... \
! 372: # sub/foo.h ... \
! 373: # ...
! 374: set_dir_from "$object"
! 375: # Use the source, not the object, to determine the base name, since
! 376: # that's sadly what pgcc will do too.
! 377: set_base_from "$source"
! 378: tmpdepfile=$base.d
! 379:
! 380: # For projects that build the same source file twice into different object
! 381: # files, the pgcc approach of using the *source* file root name can cause
! 382: # problems in parallel builds. Use a locking strategy to avoid stomping on
! 383: # the same $tmpdepfile.
! 384: lockdir=$base.d-lock
! 385: trap "
! 386: echo '$0: caught signal, cleaning up...' >&2
! 387: rmdir '$lockdir'
! 388: exit 1
! 389: " 1 2 13 15
! 390: numtries=100
! 391: i=$numtries
! 392: while test $i -gt 0; do
! 393: # mkdir is a portable test-and-set.
! 394: if mkdir "$lockdir" 2>/dev/null; then
! 395: # This process acquired the lock.
! 396: "$@" -MD
! 397: stat=$?
! 398: # Release the lock.
! 399: rmdir "$lockdir"
! 400: break
! 401: else
! 402: # If the lock is being held by a different process, wait
! 403: # until the winning process is done or we timeout.
! 404: while test -d "$lockdir" && test $i -gt 0; do
! 405: sleep 1
! 406: i=`expr $i - 1`
! 407: done
! 408: fi
! 409: i=`expr $i - 1`
! 410: done
! 411: trap - 1 2 13 15
! 412: if test $i -le 0; then
! 413: echo "$0: failed to acquire lock after $numtries attempts" >&2
! 414: echo "$0: check lockdir '$lockdir'" >&2
! 415: exit 1
! 416: fi
! 417:
! 418: if test $stat -ne 0; then
! 419: rm -f "$tmpdepfile"
! 420: exit $stat
! 421: fi
! 422: rm -f "$depfile"
! 423: # Each line is of the form `foo.o: dependent.h',
! 424: # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
! 425: # Do two passes, one to just change these to
! 426: # `$object: dependent.h' and one to simply `dependent.h:'.
! 427: sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
! 428: # Some versions of the HPUX 10.20 sed can't process this invocation
! 429: # correctly. Breaking it into two sed invocations is a workaround.
! 430: sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \
! 431: | sed -e 's/$/ :/' >> "$depfile"
! 432: rm -f "$tmpdepfile"
! 433: ;;
! 434:
! 435: hp2)
! 436: # The "hp" stanza above does not work with aCC (C++) and HP's ia64
! 437: # compilers, which have integrated preprocessors. The correct option
! 438: # to use with these is +Maked; it writes dependencies to a file named
! 439: # 'foo.d', which lands next to the object file, wherever that
! 440: # happens to be.
! 441: # Much of this is similar to the tru64 case; see comments there.
! 442: set_dir_from "$object"
! 443: set_base_from "$object"
! 444: if test "$libtool" = yes; then
! 445: tmpdepfile1=$dir$base.d
! 446: tmpdepfile2=$dir.libs/$base.d
! 447: "$@" -Wc,+Maked
! 448: else
! 449: tmpdepfile1=$dir$base.d
! 450: tmpdepfile2=$dir$base.d
! 451: "$@" +Maked
! 452: fi
! 453: stat=$?
! 454: if test $stat -ne 0; then
! 455: rm -f "$tmpdepfile1" "$tmpdepfile2"
! 456: exit $stat
! 457: fi
! 458:
! 459: for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
! 460: do
! 461: test -f "$tmpdepfile" && break
! 462: done
! 463: if test -f "$tmpdepfile"; then
! 464: sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile"
! 465: # Add 'dependent.h:' lines.
! 466: sed -ne '2,${
! 467: s/^ *//
! 468: s/ \\*$//
! 469: s/$/:/
! 470: p
! 471: }' "$tmpdepfile" >> "$depfile"
! 472: else
! 473: make_dummy_depfile
! 474: fi
! 475: rm -f "$tmpdepfile" "$tmpdepfile2"
! 476: ;;
! 477:
! 478: tru64)
! 479: # The Tru64 compiler uses -MD to generate dependencies as a side
! 480: # effect. 'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'.
! 481: # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
! 482: # dependencies in 'foo.d' instead, so we check for that too.
! 483: # Subdirectories are respected.
! 484: set_dir_from "$object"
! 485: set_base_from "$object"
! 486:
! 487: if test "$libtool" = yes; then
! 488: # Libtool generates 2 separate objects for the 2 libraries. These
! 489: # two compilations output dependencies in $dir.libs/$base.o.d and
! 490: # in $dir$base.o.d. We have to check for both files, because
! 491: # one of the two compilations can be disabled. We should prefer
! 492: # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
! 493: # automatically cleaned when .libs/ is deleted, while ignoring
! 494: # the former would cause a distcleancheck panic.
! 495: tmpdepfile1=$dir$base.o.d # libtool 1.5
! 496: tmpdepfile2=$dir.libs/$base.o.d # Likewise.
! 497: tmpdepfile3=$dir.libs/$base.d # Compaq CCC V6.2-504
! 498: "$@" -Wc,-MD
! 499: else
! 500: tmpdepfile1=$dir$base.d
! 501: tmpdepfile2=$dir$base.d
! 502: tmpdepfile3=$dir$base.d
! 503: "$@" -MD
! 504: fi
! 505:
! 506: stat=$?
! 507: if test $stat -ne 0; then
! 508: rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
! 509: exit $stat
! 510: fi
! 511:
! 512: for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
! 513: do
! 514: test -f "$tmpdepfile" && break
! 515: done
! 516: # Same post-processing that is required for AIX mode.
! 517: aix_post_process_depfile
! 518: ;;
! 519:
! 520: msvc7)
! 521: if test "$libtool" = yes; then
! 522: showIncludes=-Wc,-showIncludes
! 523: else
! 524: showIncludes=-showIncludes
! 525: fi
! 526: "$@" $showIncludes > "$tmpdepfile"
! 527: stat=$?
! 528: grep -v '^Note: including file: ' "$tmpdepfile"
! 529: if test $stat -ne 0; then
! 530: rm -f "$tmpdepfile"
! 531: exit $stat
! 532: fi
! 533: rm -f "$depfile"
! 534: echo "$object : \\" > "$depfile"
! 535: # The first sed program below extracts the file names and escapes
! 536: # backslashes for cygpath. The second sed program outputs the file
! 537: # name when reading, but also accumulates all include files in the
! 538: # hold buffer in order to output them again at the end. This only
! 539: # works with sed implementations that can handle large buffers.
! 540: sed < "$tmpdepfile" -n '
! 541: /^Note: including file: *\(.*\)/ {
! 542: s//\1/
! 543: s/\\/\\\\/g
! 544: p
! 545: }' | $cygpath_u | sort -u | sed -n '
! 546: s/ /\\ /g
! 547: s/\(.*\)/'"$tab"'\1 \\/p
! 548: s/.\(.*\) \\/\1:/
! 549: H
! 550: $ {
! 551: s/.*/'"$tab"'/
! 552: G
! 553: p
! 554: }' >> "$depfile"
! 555: echo >> "$depfile" # make sure the fragment doesn't end with a backslash
! 556: rm -f "$tmpdepfile"
! 557: ;;
! 558:
! 559: msvc7msys)
! 560: # This case exists only to let depend.m4 do its work. It works by
! 561: # looking at the text of this script. This case will never be run,
! 562: # since it is checked for above.
! 563: exit 1
! 564: ;;
! 565:
! 566: #nosideeffect)
! 567: # This comment above is used by automake to tell side-effect
! 568: # dependency tracking mechanisms from slower ones.
! 569:
! 570: dashmstdout)
! 571: # Important note: in order to support this mode, a compiler *must*
! 572: # always write the preprocessed file to stdout, regardless of -o.
! 573: "$@" || exit $?
! 574:
! 575: # Remove the call to Libtool.
! 576: if test "$libtool" = yes; then
! 577: while test "X$1" != 'X--mode=compile'; do
! 578: shift
! 579: done
! 580: shift
! 581: fi
! 582:
! 583: # Remove '-o $object'.
! 584: IFS=" "
! 585: for arg
! 586: do
! 587: case $arg in
! 588: -o)
! 589: shift
! 590: ;;
! 591: $object)
! 592: shift
! 593: ;;
! 594: *)
! 595: set fnord "$@" "$arg"
! 596: shift # fnord
! 597: shift # $arg
! 598: ;;
! 599: esac
! 600: done
! 601:
! 602: test -z "$dashmflag" && dashmflag=-M
! 603: # Require at least two characters before searching for ':'
! 604: # in the target name. This is to cope with DOS-style filenames:
! 605: # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise.
! 606: "$@" $dashmflag |
! 607: sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile"
! 608: rm -f "$depfile"
! 609: cat < "$tmpdepfile" > "$depfile"
! 610: # Some versions of the HPUX 10.20 sed can't process this sed invocation
! 611: # correctly. Breaking it into two sed invocations is a workaround.
! 612: tr ' ' "$nl" < "$tmpdepfile" \
! 613: | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
! 614: | sed -e 's/$/ :/' >> "$depfile"
! 615: rm -f "$tmpdepfile"
! 616: ;;
! 617:
! 618: dashXmstdout)
! 619: # This case only exists to satisfy depend.m4. It is never actually
! 620: # run, as this mode is specially recognized in the preamble.
! 621: exit 1
! 622: ;;
! 623:
! 624: makedepend)
! 625: "$@" || exit $?
! 626: # Remove any Libtool call
! 627: if test "$libtool" = yes; then
! 628: while test "X$1" != 'X--mode=compile'; do
! 629: shift
! 630: done
! 631: shift
! 632: fi
! 633: # X makedepend
! 634: shift
! 635: cleared=no eat=no
! 636: for arg
! 637: do
! 638: case $cleared in
! 639: no)
! 640: set ""; shift
! 641: cleared=yes ;;
! 642: esac
! 643: if test $eat = yes; then
! 644: eat=no
! 645: continue
! 646: fi
! 647: case "$arg" in
! 648: -D*|-I*)
! 649: set fnord "$@" "$arg"; shift ;;
! 650: # Strip any option that makedepend may not understand. Remove
! 651: # the object too, otherwise makedepend will parse it as a source file.
! 652: -arch)
! 653: eat=yes ;;
! 654: -*|$object)
! 655: ;;
! 656: *)
! 657: set fnord "$@" "$arg"; shift ;;
! 658: esac
! 659: done
! 660: obj_suffix=`echo "$object" | sed 's/^.*\././'`
! 661: touch "$tmpdepfile"
! 662: ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
! 663: rm -f "$depfile"
! 664: # makedepend may prepend the VPATH from the source file name to the object.
! 665: # No need to regex-escape $object, excess matching of '.' is harmless.
! 666: sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile"
! 667: # Some versions of the HPUX 10.20 sed can't process the last invocation
! 668: # correctly. Breaking it into two sed invocations is a workaround.
! 669: sed '1,2d' "$tmpdepfile" \
! 670: | tr ' ' "$nl" \
! 671: | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
! 672: | sed -e 's/$/ :/' >> "$depfile"
! 673: rm -f "$tmpdepfile" "$tmpdepfile".bak
! 674: ;;
! 675:
! 676: cpp)
! 677: # Important note: in order to support this mode, a compiler *must*
! 678: # always write the preprocessed file to stdout.
! 679: "$@" || exit $?
! 680:
! 681: # Remove the call to Libtool.
! 682: if test "$libtool" = yes; then
! 683: while test "X$1" != 'X--mode=compile'; do
! 684: shift
! 685: done
! 686: shift
! 687: fi
! 688:
! 689: # Remove '-o $object'.
! 690: IFS=" "
! 691: for arg
! 692: do
! 693: case $arg in
! 694: -o)
! 695: shift
! 696: ;;
! 697: $object)
! 698: shift
! 699: ;;
! 700: *)
! 701: set fnord "$@" "$arg"
! 702: shift # fnord
! 703: shift # $arg
! 704: ;;
! 705: esac
! 706: done
! 707:
! 708: "$@" -E \
! 709: | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
! 710: -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
! 711: | sed '$ s: \\$::' > "$tmpdepfile"
! 712: rm -f "$depfile"
! 713: echo "$object : \\" > "$depfile"
! 714: cat < "$tmpdepfile" >> "$depfile"
! 715: sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
! 716: rm -f "$tmpdepfile"
! 717: ;;
! 718:
! 719: msvisualcpp)
! 720: # Important note: in order to support this mode, a compiler *must*
! 721: # always write the preprocessed file to stdout.
! 722: "$@" || exit $?
! 723:
! 724: # Remove the call to Libtool.
! 725: if test "$libtool" = yes; then
! 726: while test "X$1" != 'X--mode=compile'; do
! 727: shift
! 728: done
! 729: shift
! 730: fi
! 731:
! 732: IFS=" "
! 733: for arg
! 734: do
! 735: case "$arg" in
! 736: -o)
! 737: shift
! 738: ;;
! 739: $object)
! 740: shift
! 741: ;;
! 742: "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
! 743: set fnord "$@"
! 744: shift
! 745: shift
! 746: ;;
! 747: *)
! 748: set fnord "$@" "$arg"
! 749: shift
! 750: shift
! 751: ;;
! 752: esac
! 753: done
! 754: "$@" -E 2>/dev/null |
! 755: sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
! 756: rm -f "$depfile"
! 757: echo "$object : \\" > "$depfile"
! 758: sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile"
! 759: echo "$tab" >> "$depfile"
! 760: sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
! 761: rm -f "$tmpdepfile"
! 762: ;;
! 763:
! 764: msvcmsys)
! 765: # This case exists only to let depend.m4 do its work. It works by
! 766: # looking at the text of this script. This case will never be run,
! 767: # since it is checked for above.
! 768: exit 1
! 769: ;;
! 770:
! 771: none)
! 772: exec "$@"
! 773: ;;
! 774:
! 775: *)
! 776: echo "Unknown depmode $depmode" 1>&2
! 777: exit 1
! 778: ;;
! 779: esac
! 780:
! 781: exit 0
! 782:
! 783: # Local Variables:
! 784: # mode: shell-script
! 785: # sh-indentation: 2
! 786: # eval: (add-hook 'write-file-hooks 'time-stamp)
! 787: # time-stamp-start: "scriptversion="
! 788: # time-stamp-format: "%:y-%02m-%02d.%02H"
! 789: # time-stamp-time-zone: "UTC"
! 790: # time-stamp-end: "; # UTC"
! 791: # End:
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