depcomp

   1 #! /bin/sh
   2 # depcomp - compile a program generating dependencies as side-effects
   3
   4 scriptversion=2006-07-09.11
   5
   6 # Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006 Free Software
   7 # Foundation, Inc.
   8
   9 # This program is free software; you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation; either version 2, or (at your option)
  12 # any later version.
  13
  14 # This program is distributed in the hope that it will be useful,
  15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 # GNU General Public License for more details.
  18
  19 # You should have received a copy of the GNU General Public License
  20 # along with this program; if not, write to the Free Software
  21 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  22 # 02110-1301, USA.
  23
  24 # As a special exception to the GNU General Public License, if you
  25 # distribute this file as part of a program that contains a
  26 # configuration script generated by Autoconf, you may include it under
  27 # the same distribution terms that you use for the rest of that program.
  28
  29 # Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
  30
  31 case $1 in
  32   '')
  33      echo "$0: No command.  Try \`$0 --help' for more information." 1>&2
  34      exit 1;
  35      ;;
  36   -h | --h*)
  37     cat <<\EOF
  38 Usage: depcomp [--help] [--version] PROGRAM [ARGS]
  39
  40 Run PROGRAMS ARGS to compile a file, generating dependencies
  41 as side-effects.
  42
  43 Environment variables:
  44   depmode     Dependency tracking mode.
  45   source      Source file read by `PROGRAMS ARGS'.
  46   object      Object file output by `PROGRAMS ARGS'.
  47   DEPDIR      directory where to store dependencies.
  48   depfile     Dependency file to output.
  49   tmpdepfile  Temporary file to use when outputing dependencies.
  50   libtool     Whether libtool is used (yes/no).
  51
  52 Report bugs to <bug-automake@gnu.org>.
  53 EOF
  54     exit $?
  55     ;;
  56   -v | --v*)
  57     echo "depcomp $scriptversion"
  58     exit $?
  59     ;;
  60 esac
  61
  62 if test -z "$depmode" || test -z "$source" || test -z "$object"; then
  63   echo "depcomp: Variables source, object and depmode must be set" 1>&2
  64   exit 1
  65 fi
  66
  67 # Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
  68 depfile=${depfile-`echo "$object" |
  69   sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
  70 tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
  71
  72 rm -f "$tmpdepfile"
  73
  74 # Some modes work just like other modes, but use different flags.  We
  75 # parameterize here, but still list the modes in the big case below,
  76 # to make depend.m4 easier to write.  Note that we *cannot* use a case
  77 # here, because this file can only contain one case statement.
  78 if test "$depmode" = hp; then
  79   # HP compiler uses -M and no extra arg.
  80   gccflag=-M
  81   depmode=gcc
  82 fi
  83
  84 if test "$depmode" = dashXmstdout; then
  85    # This is just like dashmstdout with a different argument.
  86    dashmflag=-xM
  87    depmode=dashmstdout
  88 fi
  89
  90 case "$depmode" in
  91 gcc3)
  92 ## gcc 3 implements dependency tracking that does exactly what
  93 ## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
  94 ## it if -MD -MP comes after the -MF stuff.  Hmm.
  95   "$@" -MT "$object" -MD -MP -MF "$tmpdepfile"
  96   stat=$?
  97   if test $stat -eq 0; then :
  98   else
  99     rm -f "$tmpdepfile"
 100     exit $stat
 101   fi
 102   mv "$tmpdepfile" "$depfile"
 103   ;;
 104
 105 gcc)
 106 ## There are various ways to get dependency output from gcc.  Here's
 107 ## why we pick this rather obscure method:
 108 ## - Don't want to use -MD because we'd like the dependencies to end
 109 ##   up in a subdir.  Having to rename by hand is ugly.
 110 ##   (We might end up doing this anyway to support other compilers.)
 111 ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
 112 ##   -MM, not -M (despite what the docs say).
 113 ## - Using -M directly means running the compiler twice (even worse
 114 ##   than renaming).
 115   if test -z "$gccflag"; then
 116     gccflag=-MD,
 117   fi
 118   "$@" -Wp,"$gccflag$tmpdepfile"
 119   stat=$?
 120   if test $stat -eq 0; then :
 121   else
 122     rm -f "$tmpdepfile"
 123     exit $stat
 124   fi
 125   rm -f "$depfile"
 126   echo "$object : \\" > "$depfile"
 127   alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
 128 ## The second -e expression handles DOS-style file names with drive letters.
 129   sed -e 's/^[^:]*: / /' \
 130       -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
 131 ## This next piece of magic avoids the `deleted header file' problem.
 132 ## The problem is that when a header file which appears in a .P file
 133 ## is deleted, the dependency causes make to die (because there is
 134 ## typically no way to rebuild the header).  We avoid this by adding
 135 ## dummy dependencies for each header file.  Too bad gcc doesn't do
 136 ## this for us directly.
 137   tr ' ' '
 138 ' < "$tmpdepfile" |
 139 ## Some versions of gcc put a space before the `:'.  On the theory
 140 ## that the space means something, we add a space to the output as
 141 ## well.
 142 ## Some versions of the HPUX 10.20 sed can't process this invocation
 143 ## correctly.  Breaking it into two sed invocations is a workaround.
 144     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
 145   rm -f "$tmpdepfile"
 146   ;;
 147
 148 hp)
 149   # This case exists only to let depend.m4 do its work.  It works by
 150   # looking at the text of this script.  This case will never be run,
 151   # since it is checked for above.
 152   exit 1
 153   ;;
 154
 155 sgi)
 156   if test "$libtool" = yes; then
 157     "$@" "-Wp,-MDupdate,$tmpdepfile"
 158   else
 159     "$@" -MDupdate "$tmpdepfile"
 160   fi
 161   stat=$?
 162   if test $stat -eq 0; then :
 163   else
 164     rm -f "$tmpdepfile"
 165     exit $stat
 166   fi
 167   rm -f "$depfile"
 168
 169   if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
 170     echo "$object : \\" > "$depfile"
 171
 172     # Clip off the initial element (the dependent).  Don't try to be
 173     # clever and replace this with sed code, as IRIX sed won't handle
 174     # lines with more than a fixed number of characters (4096 in
 175     # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
 176     # the IRIX cc adds comments like `#:fec' to the end of the
 177     # dependency line.
 178     tr ' ' '
 179 ' < "$tmpdepfile" \
 180     | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
 181     tr '
 182 ' ' ' >> $depfile
 183     echo >> $depfile
 184
 185     # The second pass generates a dummy entry for each header file.
 186     tr ' ' '
 187 ' < "$tmpdepfile" \
 188    | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
 189    >> $depfile
 190   else
 191     # The sourcefile does not contain any dependencies, so just
 192     # store a dummy comment line, to avoid errors with the Makefile
 193     # "include basename.Plo" scheme.
 194     echo "#dummy" > "$depfile"
 195   fi
 196   rm -f "$tmpdepfile"
 197   ;;
 198
 199 aix)
 200   # The C for AIX Compiler uses -M and outputs the dependencies
 201   # in a .u file.  In older versions, this file always lives in the
 202   # current directory.  Also, the AIX compiler puts `$object:' at the
 203   # start of each line; $object doesn't have directory information.
 204   # Version 6 uses the directory in both cases.
 205   stripped=`echo "$object" | sed 's/\(.*\)\..*$/\1/'`
 206   tmpdepfile="$stripped.u"
 207   if test "$libtool" = yes; then
 208     "$@" -Wc,-M
 209   else
 210     "$@" -M
 211   fi
 212   stat=$?
 213
 214   if test -f "$tmpdepfile"; then :
 215   else
 216     stripped=`echo "$stripped" | sed 's,^.*/,,'`
 217     tmpdepfile="$stripped.u"
 218   fi
 219
 220   if test $stat -eq 0; then :
 221   else
 222     rm -f "$tmpdepfile"
 223     exit $stat
 224   fi
 225
 226   if test -f "$tmpdepfile"; then
 227     outname="$stripped.o"
 228     # Each line is of the form `foo.o: dependent.h'.
 229     # Do two passes, one to just change these to
 230     # `$object: dependent.h' and one to simply `dependent.h:'.
 231     sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile"
 232     sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
 233   else
 234     # The sourcefile does not contain any dependencies, so just
 235     # store a dummy comment line, to avoid errors with the Makefile
 236     # "include basename.Plo" scheme.
 237     echo "#dummy" > "$depfile"
 238   fi
 239   rm -f "$tmpdepfile"
 240   ;;
 241
 242 icc)
 243   # Intel's C compiler understands `-MD -MF file'.  However on
 244   #    icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
 245   # ICC 7.0 will fill foo.d with something like
 246   #    foo.o: sub/foo.c
 247   #    foo.o: sub/foo.h
 248   # which is wrong.  We want:
 249   #    sub/foo.o: sub/foo.c
 250   #    sub/foo.o: sub/foo.h
 251   #    sub/foo.c:
 252   #    sub/foo.h:
 253   # ICC 7.1 will output
 254   #    foo.o: sub/foo.c sub/foo.h
 255   # and will wrap long lines using \ :
 256   #    foo.o: sub/foo.c ... \
 257   #     sub/foo.h ... \
 258   #     ...
 259
 260   "$@" -MD -MF "$tmpdepfile"
 261   stat=$?
 262   if test $stat -eq 0; then :
 263   else
 264     rm -f "$tmpdepfile"
 265     exit $stat
 266   fi
 267   rm -f "$depfile"
 268   # Each line is of the form `foo.o: dependent.h',
 269   # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
 270   # Do two passes, one to just change these to
 271   # `$object: dependent.h' and one to simply `dependent.h:'.
 272   sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
 273   # Some versions of the HPUX 10.20 sed can't process this invocation
 274   # correctly.  Breaking it into two sed invocations is a workaround.
 275   sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
 276     sed -e 's/$/ :/' >> "$depfile"
 277   rm -f "$tmpdepfile"
 278   ;;
 279
 280 hp2)
 281   # The "hp" stanza above does not work with aCC (C++) and HP's ia64
 282   # compilers, which have integrated preprocessors.  The correct option
 283   # to use with these is +Maked; it writes dependencies to a file named
 284   # 'foo.d', which lands next to the object file, wherever that
 285   # happens to be.
 286   # Much of this is similar to the tru64 case; see comments there.
 287   dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
 288   test "x$dir" = "x$object" && dir=
 289   base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
 290   if test "$libtool" = yes; then
 291     tmpdepfile1=$dir$base.d
 292     tmpdepfile2=$dir.libs/$base.d
 293     "$@" -Wc,+Maked
 294   else
 295     tmpdepfile1=$dir$base.d
 296     tmpdepfile2=$dir$base.d
 297     "$@" +Maked
 298   fi
 299   stat=$?
 300   if test $stat -eq 0; then :
 301   else
 302      rm -f "$tmpdepfile1" "$tmpdepfile2"
 303      exit $stat
 304   fi
 305
 306   for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
 307   do
 308     test -f "$tmpdepfile" && break
 309   done
 310   if test -f "$tmpdepfile"; then
 311     sed -e "s,^.*\.[a-z]*:,$object:," "$tmpdepfile" > "$depfile"
 312     # Add `dependent.h:' lines.
 313     sed -ne '2,${; s/^ *//; s/ \\*$//; s/$/:/; p;}' "$tmpdepfile" >> "$depfile"
 314   else
 315     echo "#dummy" > "$depfile"
 316   fi
 317   rm -f "$tmpdepfile" "$tmpdepfile2"
 318   ;;
 319
 320 tru64)
 321    # The Tru64 compiler uses -MD to generate dependencies as a side
 322    # effect.  `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
 323    # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
 324    # dependencies in `foo.d' instead, so we check for that too.
 325    # Subdirectories are respected.
 326    dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
 327    test "x$dir" = "x$object" && dir=
 328    base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
 329
 330    if test "$libtool" = yes; then
 331       # With Tru64 cc, shared objects can also be used to make a
 332       # static library.  This mechanism is used in libtool 1.4 series to
 333       # handle both shared and static libraries in a single compilation.
 334       # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
 335       #
 336       # With libtool 1.5 this exception was removed, and libtool now
 337       # generates 2 separate objects for the 2 libraries.  These two
 338       # compilations output dependencies in $dir.libs/$base.o.d and
 339       # in $dir$base.o.d.  We have to check for both files, because
 340       # one of the two compilations can be disabled.  We should prefer
 341       # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
 342       # automatically cleaned when .libs/ is deleted, while ignoring
 343       # the former would cause a distcleancheck panic.
 344       tmpdepfile1=$dir.libs/$base.lo.d   # libtool 1.4
 345       tmpdepfile2=$dir$base.o.d          # libtool 1.5
 346       tmpdepfile3=$dir.libs/$base.o.d    # libtool 1.5
 347       tmpdepfile4=$dir.libs/$base.d      # Compaq CCC V6.2-504
 348       "$@" -Wc,-MD
 349    else
 350       tmpdepfile1=$dir$base.o.d
 351       tmpdepfile2=$dir$base.d
 352       tmpdepfile3=$dir$base.d
 353       tmpdepfile4=$dir$base.d
 354       "$@" -MD
 355    fi
 356
 357    stat=$?
 358    if test $stat -eq 0; then :
 359    else
 360       rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
 361       exit $stat
 362    fi
 363
 364    for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
 365    do
 366      test -f "$tmpdepfile" && break
 367    done
 368    if test -f "$tmpdepfile"; then
 369       sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
 370       # That's a tab and a space in the [].
 371       sed -e 's,^.*\.[a-z]*:[    ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
 372    else
 373       echo "#dummy" > "$depfile"
 374    fi
 375    rm -f "$tmpdepfile"
 376    ;;
 377
 378 #nosideeffect)
 379   # This comment above is used by automake to tell side-effect
 380   # dependency tracking mechanisms from slower ones.
 381
 382 dashmstdout)
 383   # Important note: in order to support this mode, a compiler *must*
 384   # always write the preprocessed file to stdout, regardless of -o.
 385   "$@" || exit $?
 386
 387   # Remove the call to Libtool.
 388   if test "$libtool" = yes; then
 389     while test $1 != '--mode=compile'; do
 390       shift
 391     done
 392     shift
 393   fi
 394
 395   # Remove `-o $object'.
 396   IFS=" "
 397   for arg
 398   do
 399     case $arg in
 400     -o)
 401       shift
 402       ;;
 403     $object)
 404       shift
 405       ;;
 406     *)
 407       set fnord "$@" "$arg"
 408       shift # fnord
 409       shift # $arg
 410       ;;
 411     esac
 412   done
 413
 414   test -z "$dashmflag" && dashmflag=-M
 415   # Require at least two characters before searching for `:'
 416   # in the target name.  This is to cope with DOS-style filenames:
 417   # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
 418   "$@" $dashmflag |
 419     sed 's:^[  ]*[^: ][^:][^:]*\:[    ]*:'"$object"'\: :' > "$tmpdepfile"
 420   rm -f "$depfile"
 421   cat < "$tmpdepfile" > "$depfile"
 422   tr ' ' '
 423 ' < "$tmpdepfile" | \
 424 ## Some versions of the HPUX 10.20 sed can't process this invocation
 425 ## correctly.  Breaking it into two sed invocations is a workaround.
 426     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
 427   rm -f "$tmpdepfile"
 428   ;;
 429
 430 dashXmstdout)
 431   # This case only exists to satisfy depend.m4.  It is never actually
 432   # run, as this mode is specially recognized in the preamble.
 433   exit 1
 434   ;;
 435
 436 makedepend)
 437   "$@" || exit $?
 438   # Remove any Libtool call
 439   if test "$libtool" = yes; then
 440     while test $1 != '--mode=compile'; do
 441       shift
 442     done
 443     shift
 444   fi
 445   # X makedepend
 446   shift
 447   cleared=no
 448   for arg in "$@"; do
 449     case $cleared in
 450     no)
 451       set ""; shift
 452       cleared=yes ;;
 453     esac
 454     case "$arg" in
 455     -D*|-I*)
 456       set fnord "$@" "$arg"; shift ;;
 457     # Strip any option that makedepend may not understand.  Remove
 458     # the object too, otherwise makedepend will parse it as a source file.
 459     -*|$object)
 460       ;;
 461     *)
 462       set fnord "$@" "$arg"; shift ;;
 463     esac
 464   done
 465   obj_suffix="`echo $object | sed 's/^.*\././'`"
 466   touch "$tmpdepfile"
 467   ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
 468   rm -f "$depfile"
 469   cat < "$tmpdepfile" > "$depfile"
 470   sed '1,2d' "$tmpdepfile" | tr ' ' '
 471 ' | \
 472 ## Some versions of the HPUX 10.20 sed can't process this invocation
 473 ## correctly.  Breaking it into two sed invocations is a workaround.
 474     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
 475   rm -f "$tmpdepfile" "$tmpdepfile".bak
 476   ;;
 477
 478 cpp)
 479   # Important note: in order to support this mode, a compiler *must*
 480   # always write the preprocessed file to stdout.
 481   "$@" || exit $?
 482
 483   # Remove the call to Libtool.
 484   if test "$libtool" = yes; then
 485     while test $1 != '--mode=compile'; do
 486       shift
 487     done
 488     shift
 489   fi
 490
 491   # Remove `-o $object'.
 492   IFS=" "
 493   for arg
 494   do
 495     case $arg in
 496     -o)
 497       shift
 498       ;;
 499     $object)
 500       shift
 501       ;;
 502     *)
 503       set fnord "$@" "$arg"
 504       shift # fnord
 505       shift # $arg
 506       ;;
 507     esac
 508   done
 509
 510   "$@" -E |
 511     sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
 512        -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
 513     sed '$ s: \\$::' > "$tmpdepfile"
 514   rm -f "$depfile"
 515   echo "$object : \\" > "$depfile"
 516   cat < "$tmpdepfile" >> "$depfile"
 517   sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
 518   rm -f "$tmpdepfile"
 519   ;;
 520
 521 msvisualcpp)
 522   # Important note: in order to support this mode, a compiler *must*
 523   # always write the preprocessed file to stdout, regardless of -o,
 524   # because we must use -o when running libtool.
 525   "$@" || exit $?
 526   IFS=" "
 527   for arg
 528   do
 529     case "$arg" in
 530     "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
 531         set fnord "$@"
 532         shift
 533         shift
 534         ;;
 535     *)
 536         set fnord "$@" "$arg"
 537         shift
 538         shift
 539         ;;
 540     esac
 541   done
 542   "$@" -E |
 543   sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
 544   rm -f "$depfile"
 545   echo "$object : \\" > "$depfile"
 546   . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::    \1 \\:p' >> "$depfile"
 547   echo "        " >> "$depfile"
 548   . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
 549   rm -f "$tmpdepfile"
 550   ;;
 551
 552 none)
 553   exec "$@"
 554   ;;
 555
 556 *)
 557   echo "Unknown depmode $depmode" 1>&2
 558   exit 1
 559   ;;
 560 esac
 561
 562 exit 0
 563
 564 # Local Variables:
 565 # mode: shell-script
 566 # sh-indentation: 2
 567 # eval: (add-hook 'write-file-hooks 'time-stamp)
 568 # time-stamp-start: "scriptversion="
 569 # time-stamp-format: "%:y-%02m-%02d.%02H"
 570 # time-stamp-end: "$"
 571 # End: