depcomp

   1 #! /bin/sh
   2 # depcomp - compile a program generating dependencies as side-effects
   3
   4 scriptversion=2005-05-16.16
   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 ia64hp)
 280   # The "hp" stanza above does not work with HP's ia64 compilers,
 281   # which have integrated preprocessors.  The correct option to use
 282   # with these is +Maked; it writes dependencies to a file named
 283   # 'foo.d', which lands next to the object file, wherever that
 284   # happens to be.
 285   tmpdepfile=`echo "$object" | sed -e 's/\.o$/.d/'`
 286   "$@" +Maked
 287   stat=$?
 288   if test $stat -eq 0; then :
 289   else
 290      rm -f "$tmpdepfile"
 291      exit $stat
 292   fi
 293   rm -f "$depfile"
 294
 295   # The object file name is correct already.
 296   cat "$tmpdepfile" > "$depfile"
 297   # Add `dependent.h:' lines.
 298   sed -ne '2,${; s/^ //; s/ \\*$//; s/$/:/; p; }' "$tmpdepfile" >> "$depfile"
 299   rm -f "$tmpdepfile"
 300   ;;
 301
 302 tru64)
 303    # The Tru64 compiler uses -MD to generate dependencies as a side
 304    # effect.  `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
 305    # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
 306    # dependencies in `foo.d' instead, so we check for that too.
 307    # Subdirectories are respected.
 308    dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
 309    test "x$dir" = "x$object" && dir=
 310    base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
 311
 312    if test "$libtool" = yes; then
 313       # With Tru64 cc, shared objects can also be used to make a
 314       # static library.  This mecanism is used in libtool 1.4 series to
 315       # handle both shared and static libraries in a single compilation.
 316       # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
 317       #
 318       # With libtool 1.5 this exception was removed, and libtool now
 319       # generates 2 separate objects for the 2 libraries.  These two
 320       # compilations output dependencies in in $dir.libs/$base.o.d and
 321       # in $dir$base.o.d.  We have to check for both files, because
 322       # one of the two compilations can be disabled.  We should prefer
 323       # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
 324       # automatically cleaned when .libs/ is deleted, while ignoring
 325       # the former would cause a distcleancheck panic.
 326       tmpdepfile1=$dir.libs/$base.lo.d   # libtool 1.4
 327       tmpdepfile2=$dir$base.o.d          # libtool 1.5
 328       tmpdepfile3=$dir.libs/$base.o.d    # libtool 1.5
 329       tmpdepfile4=$dir.libs/$base.d      # Compaq CCC V6.2-504
 330       "$@" -Wc,-MD
 331    else
 332       tmpdepfile1=$dir$base.o.d
 333       tmpdepfile2=$dir$base.d
 334       tmpdepfile3=$dir$base.d
 335       tmpdepfile4=$dir$base.d
 336       "$@" -MD
 337    fi
 338
 339    stat=$?
 340    if test $stat -eq 0; then :
 341    else
 342       rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
 343       exit $stat
 344    fi
 345
 346    for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
 347    do
 348      test -f "$tmpdepfile" && break
 349    done
 350    if test -f "$tmpdepfile"; then
 351       sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
 352       # That's a tab and a space in the [].
 353       sed -e 's,^.*\.[a-z]*:[    ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
 354    else
 355       echo "#dummy" > "$depfile"
 356    fi
 357    rm -f "$tmpdepfile"
 358    ;;
 359
 360 #nosideeffect)
 361   # This comment above is used by automake to tell side-effect
 362   # dependency tracking mechanisms from slower ones.
 363
 364 dashmstdout)
 365   # Important note: in order to support this mode, a compiler *must*
 366   # always write the preprocessed file to stdout, regardless of -o.
 367   "$@" || exit $?
 368
 369   # Remove the call to Libtool.
 370   if test "$libtool" = yes; then
 371     while test $1 != '--mode=compile'; do
 372       shift
 373     done
 374     shift
 375   fi
 376
 377   # Remove `-o $object'.
 378   IFS=" "
 379   for arg
 380   do
 381     case $arg in
 382     -o)
 383       shift
 384       ;;
 385     $object)
 386       shift
 387       ;;
 388     *)
 389       set fnord "$@" "$arg"
 390       shift # fnord
 391       shift # $arg
 392       ;;
 393     esac
 394   done
 395
 396   test -z "$dashmflag" && dashmflag=-M
 397   # Require at least two characters before searching for `:'
 398   # in the target name.  This is to cope with DOS-style filenames:
 399   # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
 400   "$@" $dashmflag |
 401     sed 's:^[  ]*[^: ][^:][^:]*\:[    ]*:'"$object"'\: :' > "$tmpdepfile"
 402   rm -f "$depfile"
 403   cat < "$tmpdepfile" > "$depfile"
 404   tr ' ' '
 405 ' < "$tmpdepfile" | \
 406 ## Some versions of the HPUX 10.20 sed can't process this invocation
 407 ## correctly.  Breaking it into two sed invocations is a workaround.
 408     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
 409   rm -f "$tmpdepfile"
 410   ;;
 411
 412 dashXmstdout)
 413   # This case only exists to satisfy depend.m4.  It is never actually
 414   # run, as this mode is specially recognized in the preamble.
 415   exit 1
 416   ;;
 417
 418 makedepend)
 419   "$@" || exit $?
 420   # Remove any Libtool call
 421   if test "$libtool" = yes; then
 422     while test $1 != '--mode=compile'; do
 423       shift
 424     done
 425     shift
 426   fi
 427   # X makedepend
 428   shift
 429   cleared=no
 430   for arg in "$@"; do
 431     case $cleared in
 432     no)
 433       set ""; shift
 434       cleared=yes ;;
 435     esac
 436     case "$arg" in
 437     -D*|-I*)
 438       set fnord "$@" "$arg"; shift ;;
 439     # Strip any option that makedepend may not understand.  Remove
 440     # the object too, otherwise makedepend will parse it as a source file.
 441     -*|$object)
 442       ;;
 443     *)
 444       set fnord "$@" "$arg"; shift ;;
 445     esac
 446   done
 447   obj_suffix="`echo $object | sed 's/^.*\././'`"
 448   touch "$tmpdepfile"
 449   ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
 450   rm -f "$depfile"
 451   cat < "$tmpdepfile" > "$depfile"
 452   sed '1,2d' "$tmpdepfile" | tr ' ' '
 453 ' | \
 454 ## Some versions of the HPUX 10.20 sed can't process this invocation
 455 ## correctly.  Breaking it into two sed invocations is a workaround.
 456     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
 457   rm -f "$tmpdepfile" "$tmpdepfile".bak
 458   ;;
 459
 460 cpp)
 461   # Important note: in order to support this mode, a compiler *must*
 462   # always write the preprocessed file to stdout.
 463   "$@" || exit $?
 464
 465   # Remove the call to Libtool.
 466   if test "$libtool" = yes; then
 467     while test $1 != '--mode=compile'; do
 468       shift
 469     done
 470     shift
 471   fi
 472
 473   # Remove `-o $object'.
 474   IFS=" "
 475   for arg
 476   do
 477     case $arg in
 478     -o)
 479       shift
 480       ;;
 481     $object)
 482       shift
 483       ;;
 484     *)
 485       set fnord "$@" "$arg"
 486       shift # fnord
 487       shift # $arg
 488       ;;
 489     esac
 490   done
 491
 492   "$@" -E |
 493     sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
 494        -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
 495     sed '$ s: \\$::' > "$tmpdepfile"
 496   rm -f "$depfile"
 497   echo "$object : \\" > "$depfile"
 498   cat < "$tmpdepfile" >> "$depfile"
 499   sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
 500   rm -f "$tmpdepfile"
 501   ;;
 502
 503 msvisualcpp)
 504   # Important note: in order to support this mode, a compiler *must*
 505   # always write the preprocessed file to stdout, regardless of -o,
 506   # because we must use -o when running libtool.
 507   "$@" || exit $?
 508   IFS=" "
 509   for arg
 510   do
 511     case "$arg" in
 512     "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
 513         set fnord "$@"
 514         shift
 515         shift
 516         ;;
 517     *)
 518         set fnord "$@" "$arg"
 519         shift
 520         shift
 521         ;;
 522     esac
 523   done
 524   "$@" -E |
 525   sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
 526   rm -f "$depfile"
 527   echo "$object : \\" > "$depfile"
 528   . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::    \1 \\:p' >> "$depfile"
 529   echo "        " >> "$depfile"
 530   . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
 531   rm -f "$tmpdepfile"
 532   ;;
 533
 534 none)
 535   exec "$@"
 536   ;;
 537
 538 *)
 539   echo "Unknown depmode $depmode" 1>&2
 540   exit 1
 541   ;;
 542 esac
 543
 544 exit 0
 545
 546 # Local Variables:
 547 # mode: shell-script
 548 # sh-indentation: 2
 549 # eval: (add-hook 'write-file-hooks 'time-stamp)
 550 # time-stamp-start: "scriptversion="
 551 # time-stamp-format: "%:y-%02m-%02d.%02H"
 552 # time-stamp-end: "$"
 553 # End: