Annotation of embedaddon/ntp/depcomp, revision 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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