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 "$tmpdepfile"
 207   ;;
 208
 209 icc)
 210   # Intel's C compiler understands `-MD -MF file'.  However on
 211   #    icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
 212   # ICC 7.0 will fill foo.d with something like
 213   #    foo.o: sub/foo.c
 214   #    foo.o: sub/foo.h
 215   # which is wrong.  We want:
 216   #    sub/foo.o: sub/foo.c
 217   #    sub/foo.o: sub/foo.h
 218   #    sub/foo.c:
 219   #    sub/foo.h:
 220   # ICC 7.1 will output
 221   #    foo.o: sub/foo.c sub/foo.h
 222   # and will wrap long lines using \ :
 223   #    foo.o: sub/foo.c ... \
 224   #     sub/foo.h ... \
 225   #     ...
 226
 227   "$@" -MD -MF "$tmpdepfile"
 228   stat=$?
 229   if test $stat -eq 0; then :
 230   else
 231     rm -f "$tmpdepfile"
 232     exit $stat
 233   fi
 234   rm -f "$depfile"
 235   # Each line is of the form `foo.o: dependent.h',
 236   # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
 237   # Do two passes, one to just change these to
 238   # `$object: dependent.h' and one to simply `dependent.h:'.
 239   sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
 240   # Some versions of the HPUX 10.20 sed can't process this invocation
 241   # correctly.  Breaking it into two sed invocations is a workaround.
 242   sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
 243     sed -e 's/$/ :/' >> "$depfile"
 244   rm -f "$tmpdepfile"
 245   ;;
 246
 247 tru64)
 248    # The Tru64 compiler uses -MD to generate dependencies as a side
 249    # effect.  `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
 250    # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
 251    # dependencies in `foo.d' instead, so we check for that too.
 252    # Subdirectories are respected.
 253    dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
 254    test "x$dir" = "x$object" && dir=
 255    base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
 256
 257    if test "$libtool" = yes; then
 258       tmpdepfile1="$dir.libs/$base.lo.d"
 259       tmpdepfile2="$dir.libs/$base.d"
 260       "$@" -Wc,-MD
 261    else
 262       tmpdepfile1="$dir$base.o.d"
 263       tmpdepfile2="$dir$base.d"
 264       "$@" -MD
 265    fi
 266
 267    stat=$?
 268    if test $stat -eq 0; then :
 269    else
 270       rm -f "$tmpdepfile1" "$tmpdepfile2"
 271       exit $stat
 272    fi
 273
 274    if test -f "$tmpdepfile1"; then
 275       tmpdepfile="$tmpdepfile1"
 276    else
 277       tmpdepfile="$tmpdepfile2"
 278    fi
 279    if test -f "$tmpdepfile"; then
 280       sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
 281       # That's a space and a tab in the [].
 282       sed -e 's,^.*\.[a-z]*:[   ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
 283    else
 284       echo "#dummy" > "$depfile"
 285    fi
 286    rm -f "$tmpdepfile"
 287    ;;
 288
 289 #nosideeffect)
 290   # This comment above is used by automake to tell side-effect
 291   # dependency tracking mechanisms from slower ones.
 292
 293 dashmstdout)
 294   # Important note: in order to support this mode, a compiler *must*
 295   # always write the proprocessed file to stdout, regardless of -o.
 296   "$@" || exit $?
 297
 298   # Remove the call to Libtool.
 299   if test "$libtool" = yes; then
 300     while test $1 != '--mode=compile'; do
 301       shift
 302     done
 303     shift
 304   fi
 305
 306   # Remove `-o $object'.
 307   IFS=" "
 308   for arg
 309   do
 310     case $arg in
 311     -o)
 312       shift
 313       ;;
 314     $object)
 315       shift
 316       ;;
 317     *)
 318       set fnord "$@" "$arg"
 319       shift # fnord
 320       shift # $arg
 321       ;;
 322     esac
 323   done
 324
 325   test -z "$dashmflag" && dashmflag=-M
 326   # Require at least two characters before searching for `:'
 327   # in the target name.  This is to cope with DOS-style filenames:
 328   # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
 329   "$@" $dashmflag |
 330     sed 's:^[  ]*[^: ][^:][^:]*\:[    ]*:'"$object"'\: :' > "$tmpdepfile"
 331   rm -f "$depfile"
 332   cat < "$tmpdepfile" > "$depfile"
 333   tr ' ' '
 334 ' < "$tmpdepfile" | \
 335 ## Some versions of the HPUX 10.20 sed can't process this invocation
 336 ## correctly.  Breaking it into two sed invocations is a workaround.
 337     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
 338   rm -f "$tmpdepfile"
 339   ;;
 340
 341 dashXmstdout)
 342   # This case only exists to satisfy depend.m4.  It is never actually
 343   # run, as this mode is specially recognized in the preamble.
 344   exit 1
 345   ;;
 346
 347 makedepend)
 348   "$@" || exit $?
 349   # Remove any Libtool call
 350   if test "$libtool" = yes; then
 351     while test $1 != '--mode=compile'; do
 352       shift
 353     done
 354     shift
 355   fi
 356   # X makedepend
 357   shift
 358   cleared=no
 359   for arg in "$@"; do
 360     case $cleared in
 361     no)
 362       set ""; shift
 363       cleared=yes ;;
 364     esac
 365     case "$arg" in
 366     -D*|-I*)
 367       set fnord "$@" "$arg"; shift ;;
 368     # Strip any option that makedepend may not understand.  Remove
 369     # the object too, otherwise makedepend will parse it as a source file.
 370     -*|$object)
 371       ;;
 372     *)
 373       set fnord "$@" "$arg"; shift ;;
 374     esac
 375   done
 376   obj_suffix="`echo $object | sed 's/^.*\././'`"
 377   touch "$tmpdepfile"
 378   ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
 379   rm -f "$depfile"
 380   cat < "$tmpdepfile" > "$depfile"
 381   sed '1,2d' "$tmpdepfile" | tr ' ' '
 382 ' | \
 383 ## Some versions of the HPUX 10.20 sed can't process this invocation
 384 ## correctly.  Breaking it into two sed invocations is a workaround.
 385     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
 386   rm -f "$tmpdepfile" "$tmpdepfile".bak
 387   ;;
 388
 389 cpp)
 390   # Important note: in order to support this mode, a compiler *must*
 391   # always write the proprocessed file to stdout.
 392   "$@" || exit $?
 393
 394   # Remove the call to Libtool.
 395   if test "$libtool" = yes; then
 396     while test $1 != '--mode=compile'; do
 397       shift
 398     done
 399     shift
 400   fi
 401
 402   # Remove `-o $object'.
 403   IFS=" "
 404   for arg
 405   do
 406     case $arg in
 407     -o)
 408       shift
 409       ;;
 410     $object)
 411       shift
 412       ;;
 413     *)
 414       set fnord "$@" "$arg"
 415       shift # fnord
 416       shift # $arg
 417       ;;
 418     esac
 419   done
 420
 421   "$@" -E |
 422     sed -n '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
 423     sed '$ s: \\$::' > "$tmpdepfile"
 424   rm -f "$depfile"
 425   echo "$object : \\" > "$depfile"
 426   cat < "$tmpdepfile" >> "$depfile"
 427   sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
 428   rm -f "$tmpdepfile"
 429   ;;
 430
 431 msvisualcpp)
 432   # Important note: in order to support this mode, a compiler *must*
 433   # always write the proprocessed file to stdout, regardless of -o,
 434   # because we must use -o when running libtool.
 435   "$@" || exit $?
 436   IFS=" "
 437   for arg
 438   do
 439     case "$arg" in
 440     "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
 441         set fnord "$@"
 442         shift
 443         shift
 444         ;;
 445     *)
 446         set fnord "$@" "$arg"
 447         shift
 448         shift
 449         ;;
 450     esac
 451   done
 452   "$@" -E |
 453   sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
 454   rm -f "$depfile"
 455   echo "$object : \\" > "$depfile"
 456   . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::    \1 \\:p' >> "$depfile"
 457   echo "        " >> "$depfile"
 458   . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
 459   rm -f "$tmpdepfile"
 460   ;;
 461
 462 none)
 463   exec "$@"
 464   ;;
 465
 466 *)
 467   echo "Unknown depmode $depmode" 1>&2
 468   exit 1
 469   ;;
 470 esac
 471
 472 exit 0