depcomp

   1 #! /bin/sh
   2
   3 # depcomp - compile a program generating dependencies as side-effects
   4 # Copyright 1999, 2000 Free Software Foundation, Inc.
   5
   6 # This program is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 2, or (at your option)
   9 # any later version.
  10
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program; if not, write to the Free Software
  18 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  19 # 02111-1307, USA.
  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 if test -z "$depmode" || test -z "$source" || test -z "$object"; then
  29   echo "depcomp: Variables source, object and depmode must be set" 1>&2
  30   exit 1
  31 fi
  32 # `libtool' can also be set to `yes' or `no'.
  33
  34 if test -z "$depfile"; then
  35    base=`echo "$object" | sed -e 's,^.*/,,' -e 's,\.\([^.]*\)$,.P\1,'`
  36    dir=`echo "$object" | sed 's,/.*$,/,'`
  37    if test "$dir" = "$object"; then
  38       dir=
  39    fi
  40    # FIXME: should be _deps on DOS.
  41    depfile="$dir.deps/$base"
  42 fi
  43
  44 tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
  45
  46 rm -f "$tmpdepfile"
  47
  48 # Some modes work just like other modes, but use different flags.  We
  49 # parameterize here, but still list the modes in the big case below,
  50 # to make depend.m4 easier to write.  Note that we *cannot* use a case
  51 # here, because this file can only contain one case statement.
  52 if test "$depmode" = hp; then
  53   # HP compiler uses -M and no extra arg.
  54   gccflag=-M
  55   depmode=gcc
  56 fi
  57
  58 if test "$depmode" = dashXmstdout; then
  59    # This is just like dashmstdout with a different argument.
  60    dashmflag=-xM
  61    depmode=dashmstdout
  62 fi
  63
  64 case "$depmode" in
  65 gcc3)
  66 ## gcc 3 implements dependency tracking that does exactly what
  67 ## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
  68 ## it if -MD -MP comes after the -MF stuff.  Hmm.
  69   "$@" -MT "$object" -MD -MP -MF "$tmpdepfile"
  70   stat=$?
  71   if test $stat -eq 0; then :
  72   else
  73     rm -f "$tmpdepfile"
  74     exit $stat
  75   fi
  76   mv "$tmpdepfile" "$depfile"
  77   ;;
  78
  79 gcc)
  80 ## There are various ways to get dependency output from gcc.  Here's
  81 ## why we pick this rather obscure method:
  82 ## - Don't want to use -MD because we'd like the dependencies to end
  83 ##   up in a subdir.  Having to rename by hand is ugly.
  84 ##   (We might end up doing this anyway to support other compilers.)
  85 ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
  86 ##   -MM, not -M (despite what the docs say).
  87 ## - Using -M directly means running the compiler twice (even worse
  88 ##   than renaming).
  89   if test -z "$gccflag"; then
  90     gccflag=-MD,
  91   fi
  92   "$@" -Wp,"$gccflag$tmpdepfile"
  93   stat=$?
  94   if test $stat -eq 0; then :
  95   else
  96     rm -f "$tmpdepfile"
  97     exit $stat
  98   fi
  99   rm -f "$depfile"
 100   echo "$object : \\" > "$depfile"
 101   alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
 102 ## The second -e expression handles DOS-style file names with drive letters.
 103   sed -e 's/^[^:]*: / /' \
 104       -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
 105 ## This next piece of magic avoids the `deleted header file' problem.
 106 ## The problem is that when a header file which appears in a .P file
 107 ## is deleted, the dependency causes make to die (because there is
 108 ## typically no way to rebuild the header).  We avoid this by adding
 109 ## dummy dependencies for each header file.  Too bad gcc doesn't do
 110 ## this for us directly.
 111   tr ' ' '
 112 ' < "$tmpdepfile" |
 113 ## Some versions of gcc put a space before the `:'.  On the theory
 114 ## that the space means something, we add a space to the output as
 115 ## well.
 116 ## Some versions of the HPUX 10.20 sed can't process this invocation
 117 ## correctly.  Breaking it into two sed invocations is a workaround.
 118     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
 119   rm -f "$tmpdepfile"
 120   ;;
 121
 122 hp)
 123   # This case exists only to let depend.m4 do its work.  It works by
 124   # looking at the text of this script.  This case will never be run,
 125   # since it is checked for above.
 126   exit 1
 127   ;;
 128
 129 sgi)
 130   if test "$libtool" = yes; then
 131     "$@" "-Wp,-MDupdate,$tmpdepfile"
 132   else
 133     "$@" -MDupdate "$tmpdepfile"
 134   fi
 135   stat=$?
 136   if test $stat -eq 0; then :
 137   else
 138     rm -f "$tmpdepfile"
 139     exit $stat
 140   fi
 141   rm -f "$depfile"
 142
 143   if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
 144     echo "$object : \\" > "$depfile"
 145
 146     # Clip off the initial element (the dependent).  Don't try to be
 147     # clever and replace this with sed code, as IRIX sed won't handle
 148     # lines with more than a fixed number of characters (4096 in
 149     # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
 150     # the IRIX cc adds comments like `#:fec' to the end of the
 151     # dependency line.
 152     tr ' ' '
 153 ' < "$tmpdepfile" \
 154     | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
 155     tr '
 156 ' ' ' >> $depfile
 157     echo >> $depfile
 158
 159     # The second pass generates a dummy entry for each header file.
 160     tr ' ' '
 161 ' < "$tmpdepfile" \
 162    | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
 163    >> $depfile
 164   else
 165     # The sourcefile does not contain any dependencies, so just
 166     # store a dummy comment line, to avoid errors with the Makefile
 167     # "include basename.Plo" scheme.
 168     echo "#dummy" > "$depfile"
 169   fi
 170   rm -f "$tmpdepfile"
 171   ;;
 172
 173 aix)
 174   # The C for AIX Compiler uses -M and outputs the dependencies
 175   # in a .u file.  This file always lives in the current directory.
 176   # Also, the AIX compiler puts `$object:' at the start of each line;
 177   # $object doesn't have directory information.
 178   stripped=`echo "$object" | sed -e 's,^.*/,,' -e 's/\(.*\)\..*$/\1/'`
 179   tmpdepfile="$stripped.u"
 180   outname="$stripped.o"
 181   if test "$libtool" = yes; then
 182     "$@" -Wc,-M
 183   else
 184     "$@" -M
 185   fi
 186
 187   stat=$?
 188   if test $stat -eq 0; then :
 189   else
 190     rm -f "$tmpdepfile"
 191     exit $stat
 192   fi
 193
 194   if test -f "$tmpdepfile"; then
 195     # Each line is of the form `foo.o: dependent.h'.
 196     # Do two passes, one to just change these to
 197     # `$object: dependent.h' and one to simply `dependent.h:'.
 198     sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile"
 199     sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
 200   else
 201     # The sourcefile does not contain any dependencies, so just
 202     # store a dummy comment line, to avoid errors with the Makefile
 203     # "include basename.Plo" scheme.
 204     echo "#dummy" > "$depfile"
 205   fi
 206   rm -f "$tmpdepfile"
 207   ;;
 208
 209 icc)
 210   # Must come before tru64.
 211
 212   # Intel's C compiler understands `-MD -MF file'.  However
 213   #    icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
 214   # will fill foo.d with something like
 215   #    foo.o: sub/foo.c
 216   #    foo.o: sub/foo.h
 217   # which is wrong.  We want:
 218   #    sub/foo.o: sub/foo.c
 219   #    sub/foo.o: sub/foo.h
 220   #    sub/foo.c:
 221   #    sub/foo.h:
 222
 223   "$@" -MD -MF "$tmpdepfile"
 224   stat=$?
 225   if test $stat -eq 0; then :
 226   else
 227     rm -f "$tmpdepfile"
 228     exit $stat
 229   fi
 230   rm -f "$depfile"
 231   # Each line is of the form `foo.o: dependent.h'.
 232   # Do two passes, one to just change these to
 233   # `$object: dependent.h' and one to simply `dependent.h:'.
 234   sed -e "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
 235   sed -e "s,^[^:]*: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
 236   rm -f "$tmpdepfile"
 237   ;;
 238
 239 tru64)
 240    # The Tru64 compiler uses -MD to generate dependencies as a side
 241    # effect.  `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
 242    # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
 243    # dependencies in `foo.d' instead, so we check for that too.
 244    # Subdirectories are respected.
 245    dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
 246    test "x$dir" = "x$object" && dir=
 247    base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
 248
 249    if test "$libtool" = yes; then
 250       tmpdepfile1="$dir.libs/$base.lo.d"
 251       tmpdepfile2="$dir.libs/$base.d"
 252       "$@" -Wc,-MD
 253    else
 254       tmpdepfile1="$dir$base.o.d"
 255       tmpdepfile2="$dir$base.d"
 256       "$@" -MD
 257    fi
 258
 259    stat=$?
 260    if test $stat -eq 0; then :
 261    else
 262       rm -f "$tmpdepfile1" "$tmpdepfile2"
 263       exit $stat
 264    fi
 265
 266    if test -f "$tmpdepfile1"; then
 267       tmpdepfile="$tmpdepfile1"
 268    else
 269       tmpdepfile="$tmpdepfile2"
 270    fi
 271    if test -f "$tmpdepfile"; then
 272       sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
 273       # That's a space and a tab in the [].
 274       sed -e 's,^.*\.[a-z]*:[   ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
 275    else
 276       echo "#dummy" > "$depfile"
 277    fi
 278    rm -f "$tmpdepfile"
 279    ;;
 280
 281 #nosideeffect)
 282   # This comment above is used by automake to tell side-effect
 283   # dependency tracking mechanisms from slower ones.
 284
 285 dashmstdout)
 286   # Important note: in order to support this mode, a compiler *must*
 287   # always write the proprocessed file to stdout, regardless of -o.
 288   "$@" || exit $?
 289
 290   # Remove the call to Libtool.
 291   if test "$libtool" = yes; then
 292     while test $1 != '--mode=compile'; do
 293       shift
 294     done
 295     shift
 296   fi
 297
 298   # Remove `-o $object'.
 299   IFS=" "
 300   for arg
 301   do
 302     case $arg in
 303     -o)
 304       shift
 305       ;;
 306     $object)
 307       shift
 308       ;;
 309     *)
 310       set fnord "$@" "$arg"
 311       shift # fnord
 312       shift # $arg
 313       ;;
 314     esac
 315   done
 316
 317   test -z "$dashmflag" && dashmflag=-M
 318   # Require at least two characters before searching for `:'
 319   # in the target name.  This is to cope with DOS-style filenames:
 320   # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
 321   "$@" $dashmflag |
 322     sed 's:^[  ]*[^: ][^:][^:]*\:[    ]*:'"$object"'\: :' > "$tmpdepfile"
 323   rm -f "$depfile"
 324   cat < "$tmpdepfile" > "$depfile"
 325   tr ' ' '
 326 ' < "$tmpdepfile" | \
 327 ## Some versions of the HPUX 10.20 sed can't process this invocation
 328 ## correctly.  Breaking it into two sed invocations is a workaround.
 329     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
 330   rm -f "$tmpdepfile"
 331   ;;
 332
 333 dashXmstdout)
 334   # This case only exists to satisfy depend.m4.  It is never actually
 335   # run, as this mode is specially recognized in the preamble.
 336   exit 1
 337   ;;
 338
 339 makedepend)
 340   "$@" || exit $?
 341   # Remove any Libtool call
 342   if test "$libtool" = yes; then
 343     while test $1 != '--mode=compile'; do
 344       shift
 345     done
 346     shift
 347   fi
 348   # X makedepend
 349   shift
 350   cleared=no
 351   for arg in "$@"; do
 352     case $cleared in
 353     no)
 354       set ""; shift
 355       cleared=yes ;;
 356     esac
 357     case "$arg" in
 358     -D*|-I*)
 359       set fnord "$@" "$arg"; shift ;;
 360     # Strip any option that makedepend may not understand.  Remove
 361     # the object too, otherwise makedepend will parse it as a source file.
 362     -*|$object)
 363       ;;
 364     *)
 365       set fnord "$@" "$arg"; shift ;;
 366     esac
 367   done
 368   obj_suffix="`echo $object | sed 's/^.*\././'`"
 369   touch "$tmpdepfile"
 370   ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
 371   rm -f "$depfile"
 372   cat < "$tmpdepfile" > "$depfile"
 373   sed '1,2d' "$tmpdepfile" | tr ' ' '
 374 ' | \
 375 ## Some versions of the HPUX 10.20 sed can't process this invocation
 376 ## correctly.  Breaking it into two sed invocations is a workaround.
 377     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
 378   rm -f "$tmpdepfile" "$tmpdepfile".bak
 379   ;;
 380
 381 cpp)
 382   # Important note: in order to support this mode, a compiler *must*
 383   # always write the proprocessed file to stdout.
 384   "$@" || exit $?
 385
 386   # Remove the call to Libtool.
 387   if test "$libtool" = yes; then
 388     while test $1 != '--mode=compile'; do
 389       shift
 390     done
 391     shift
 392   fi
 393
 394   # Remove `-o $object'.
 395   IFS=" "
 396   for arg
 397   do
 398     case $arg in
 399     -o)
 400       shift
 401       ;;
 402     $object)
 403       shift
 404       ;;
 405     *)
 406       set fnord "$@" "$arg"
 407       shift # fnord
 408       shift # $arg
 409       ;;
 410     esac
 411   done
 412
 413   "$@" -E |
 414     sed -n '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
 415     sed '$ s: \\$::' > "$tmpdepfile"
 416   rm -f "$depfile"
 417   echo "$object : \\" > "$depfile"
 418   cat < "$tmpdepfile" >> "$depfile"
 419   sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
 420   rm -f "$tmpdepfile"
 421   ;;
 422
 423 msvisualcpp)
 424   # Important note: in order to support this mode, a compiler *must*
 425   # always write the proprocessed file to stdout, regardless of -o,
 426   # because we must use -o when running libtool.
 427   "$@" || exit $?
 428   IFS=" "
 429   for arg
 430   do
 431     case "$arg" in
 432     "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
 433         set fnord "$@"
 434         shift
 435         shift
 436         ;;
 437     *)
 438         set fnord "$@" "$arg"
 439         shift
 440         shift
 441         ;;
 442     esac
 443   done
 444   "$@" -E |
 445   sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
 446   rm -f "$depfile"
 447   echo "$object : \\" > "$depfile"
 448   . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::    \1 \\:p' >> "$depfile"
 449   echo "        " >> "$depfile"
 450   . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
 451   rm -f "$tmpdepfile"
 452   ;;
 453
 454 none)
 455   exec "$@"
 456   ;;
 457
 458 *)
 459   echo "Unknown depmode $depmode" 1>&2
 460   exit 1
 461   ;;
 462 esac
 463
 464 exit 0