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