depcomp

   1 #! /bin/sh
   2 # depcomp - compile a program generating dependencies as side-effects
   3
   4 scriptversion=2012-10-18.11; # 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   rm -f "$tmpdepfile"
 556   ;;
 557
 558 msvc7msys)
 559   # This case exists only to let depend.m4 do its work.  It works by
 560   # looking at the text of this script.  This case will never be run,
 561   # since it is checked for above.
 562   exit 1
 563   ;;
 564
 565 #nosideeffect)
 566   # This comment above is used by automake to tell side-effect
 567   # dependency tracking mechanisms from slower ones.
 568
 569 dashmstdout)
 570   # Important note: in order to support this mode, a compiler *must*
 571   # always write the preprocessed file to stdout, regardless of -o.
 572   "$@" || exit $?
 573
 574   # Remove the call to Libtool.
 575   if test "$libtool" = yes; then
 576     while test "X$1" != 'X--mode=compile'; do
 577       shift
 578     done
 579     shift
 580   fi
 581
 582   # Remove '-o $object'.
 583   IFS=" "
 584   for arg
 585   do
 586     case $arg in
 587     -o)
 588       shift
 589       ;;
 590     $object)
 591       shift
 592       ;;
 593     *)
 594       set fnord "$@" "$arg"
 595       shift # fnord
 596       shift # $arg
 597       ;;
 598     esac
 599   done
 600
 601   test -z "$dashmflag" && dashmflag=-M
 602   # Require at least two characters before searching for ':'
 603   # in the target name.  This is to cope with DOS-style filenames:
 604   # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise.
 605   "$@" $dashmflag |
 606     sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile"
 607   rm -f "$depfile"
 608   cat < "$tmpdepfile" > "$depfile"
 609   # Some versions of the HPUX 10.20 sed can't process this sed invocation
 610   # correctly.  Breaking it into two sed invocations is a workaround.
 611   tr ' ' "$nl" < "$tmpdepfile" \
 612     | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
 613     | sed -e 's/$/ :/' >> "$depfile"
 614   rm -f "$tmpdepfile"
 615   ;;
 616
 617 dashXmstdout)
 618   # This case only exists to satisfy depend.m4.  It is never actually
 619   # run, as this mode is specially recognized in the preamble.
 620   exit 1
 621   ;;
 622
 623 makedepend)
 624   "$@" || exit $?
 625   # Remove any Libtool call
 626   if test "$libtool" = yes; then
 627     while test "X$1" != 'X--mode=compile'; do
 628       shift
 629     done
 630     shift
 631   fi
 632   # X makedepend
 633   shift
 634   cleared=no eat=no
 635   for arg
 636   do
 637     case $cleared in
 638     no)
 639       set ""; shift
 640       cleared=yes ;;
 641     esac
 642     if test $eat = yes; then
 643       eat=no
 644       continue
 645     fi
 646     case "$arg" in
 647     -D*|-I*)
 648       set fnord "$@" "$arg"; shift ;;
 649     # Strip any option that makedepend may not understand.  Remove
 650     # the object too, otherwise makedepend will parse it as a source file.
 651     -arch)
 652       eat=yes ;;
 653     -*|$object)
 654       ;;
 655     *)
 656       set fnord "$@" "$arg"; shift ;;
 657     esac
 658   done
 659   obj_suffix=`echo "$object" | sed 's/^.*\././'`
 660   touch "$tmpdepfile"
 661   ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
 662   rm -f "$depfile"
 663   # makedepend may prepend the VPATH from the source file name to the object.
 664   # No need to regex-escape $object, excess matching of '.' is harmless.
 665   sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile"
 666   # Some versions of the HPUX 10.20 sed can't process the last invocation
 667   # correctly.  Breaking it into two sed invocations is a workaround.
 668   sed '1,2d' "$tmpdepfile" \
 669     | tr ' ' "$nl" \
 670     | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
 671     | sed -e 's/$/ :/' >> "$depfile"
 672   rm -f "$tmpdepfile" "$tmpdepfile".bak
 673   ;;
 674
 675 cpp)
 676   # Important note: in order to support this mode, a compiler *must*
 677   # always write the preprocessed file to stdout.
 678   "$@" || exit $?
 679
 680   # Remove the call to Libtool.
 681   if test "$libtool" = yes; then
 682     while test "X$1" != 'X--mode=compile'; do
 683       shift
 684     done
 685     shift
 686   fi
 687
 688   # Remove '-o $object'.
 689   IFS=" "
 690   for arg
 691   do
 692     case $arg in
 693     -o)
 694       shift
 695       ;;
 696     $object)
 697       shift
 698       ;;
 699     *)
 700       set fnord "$@" "$arg"
 701       shift # fnord
 702       shift # $arg
 703       ;;
 704     esac
 705   done
 706
 707   "$@" -E \
 708     | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
 709              -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
 710     | sed '$ s: \\$::' > "$tmpdepfile"
 711   rm -f "$depfile"
 712   echo "$object : \\" > "$depfile"
 713   cat < "$tmpdepfile" >> "$depfile"
 714   sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
 715   rm -f "$tmpdepfile"
 716   ;;
 717
 718 msvisualcpp)
 719   # Important note: in order to support this mode, a compiler *must*
 720   # always write the preprocessed file to stdout.
 721   "$@" || exit $?
 722
 723   # Remove the call to Libtool.
 724   if test "$libtool" = yes; then
 725     while test "X$1" != 'X--mode=compile'; do
 726       shift
 727     done
 728     shift
 729   fi
 730
 731   IFS=" "
 732   for arg
 733   do
 734     case "$arg" in
 735     -o)
 736       shift
 737       ;;
 738     $object)
 739       shift
 740       ;;
 741     "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
 742         set fnord "$@"
 743         shift
 744         shift
 745         ;;
 746     *)
 747         set fnord "$@" "$arg"
 748         shift
 749         shift
 750         ;;
 751     esac
 752   done
 753   "$@" -E 2>/dev/null |
 754   sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
 755   rm -f "$depfile"
 756   echo "$object : \\" > "$depfile"
 757   sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile"
 758   echo "$tab" >> "$depfile"
 759   sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
 760   rm -f "$tmpdepfile"
 761   ;;
 762
 763 msvcmsys)
 764   # This case exists only to let depend.m4 do its work.  It works by
 765   # looking at the text of this script.  This case will never be run,
 766   # since it is checked for above.
 767   exit 1
 768   ;;
 769
 770 none)
 771   exec "$@"
 772   ;;
 773
 774 *)
 775   echo "Unknown depmode $depmode" 1>&2
 776   exit 1
 777   ;;
 778 esac
 779
 780 exit 0
 781
 782 # Local Variables:
 783 # mode: shell-script
 784 # sh-indentation: 2
 785 # eval: (add-hook 'write-file-hooks 'time-stamp)
 786 # time-stamp-start: "scriptversion="
 787 # time-stamp-format: "%:y-%02m-%02d.%02H"
 788 # time-stamp-time-zone: "UTC"
 789 # time-stamp-end: "; # UTC"
 790 # End: