depcomp

   1 #! /bin/sh
   2
   3 # depcomp - compile a program generating dependencies as side-effects
   4 # Copyright 1999, 2000, 2003 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., 51 Franklin Street, Fifth Floor, Boston, MA
  19 # 02110-1301, 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 "$tmpdepfile"
 171   ;;
 172
 173 aix)
 174   # The C for AIX Compiler uses -M and outputs the dependencies
 175   # in a .u file.  In older versions, this file always lives in the
 176   # current directory.  Also, the AIX compiler puts `$object:' at the
 177   # start of each line; $object doesn't have directory information.
 178   # Version 6 uses the directory in both cases.
 179   stripped=`echo "$object" | sed 's/\(.*\)\..*$/\1/'`
 180   tmpdepfile="$stripped.u"
 181   if test "$libtool" = yes; then
 182     "$@" -Wc,-M
 183   else
 184     "$@" -M
 185   fi
 186   stat=$?
 187
 188   if test -f "$tmpdepfile"; then :
 189   else
 190     stripped=`echo "$stripped" | sed 's,^.*/,,'`
 191     tmpdepfile="$stripped.u"
 192   fi
 193
 194   if test $stat -eq 0; then :
 195   else
 196     rm -f "$tmpdepfile"
 197     exit $stat
 198   fi
 199
 200   if test -f "$tmpdepfile"; then
 201     outname="$stripped.o"
 202     # Each line is of the form `foo.o: dependent.h'.
 203     # Do two passes, one to just change these to
 204     # `$object: dependent.h' and one to simply `dependent.h:'.
 205     sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile"
 206     sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
 207   else
 208     # The sourcefile does not contain any dependencies, so just
 209     # store a dummy comment line, to avoid errors with the Makefile
 210     # "include basename.Plo" scheme.
 211     echo "#dummy" > "$depfile"
 212   fi
 213   rm -f "$tmpdepfile"
 214   ;;
 215
 216 icc)
 217   # Intel's C compiler understands `-MD -MF file'.  However on
 218   #    icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
 219   # ICC 7.0 will fill foo.d with something like
 220   #    foo.o: sub/foo.c
 221   #    foo.o: sub/foo.h
 222   # which is wrong.  We want:
 223   #    sub/foo.o: sub/foo.c
 224   #    sub/foo.o: sub/foo.h
 225   #    sub/foo.c:
 226   #    sub/foo.h:
 227   # ICC 7.1 will output
 228   #    foo.o: sub/foo.c sub/foo.h
 229   # and will wrap long lines using \ :
 230   #    foo.o: sub/foo.c ... \
 231   #     sub/foo.h ... \
 232   #     ...
 233
 234   "$@" -MD -MF "$tmpdepfile"
 235   stat=$?
 236   if test $stat -eq 0; then :
 237   else
 238     rm -f "$tmpdepfile"
 239     exit $stat
 240   fi
 241   rm -f "$depfile"
 242   # Each line is of the form `foo.o: dependent.h',
 243   # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
 244   # Do two passes, one to just change these to
 245   # `$object: dependent.h' and one to simply `dependent.h:'.
 246   sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
 247   # Some versions of the HPUX 10.20 sed can't process this invocation
 248   # correctly.  Breaking it into two sed invocations is a workaround.
 249   sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
 250     sed -e 's/$/ :/' >> "$depfile"
 251   rm -f "$tmpdepfile"
 252   ;;
 253
 254 tru64)
 255    # The Tru64 compiler uses -MD to generate dependencies as a side
 256    # effect.  `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
 257    # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
 258    # dependencies in `foo.d' instead, so we check for that too.
 259    # Subdirectories are respected.
 260    dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
 261    test "x$dir" = "x$object" && dir=
 262    base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
 263
 264    if test "$libtool" = yes; then
 265       tmpdepfile1="$dir.libs/$base.lo.d"
 266       tmpdepfile2="$dir.libs/$base.d"
 267       "$@" -Wc,-MD
 268    else
 269       tmpdepfile1="$dir$base.o.d"
 270       tmpdepfile2="$dir$base.d"
 271       "$@" -MD
 272    fi
 273
 274    stat=$?
 275    if test $stat -eq 0; then :
 276    else
 277       rm -f "$tmpdepfile1" "$tmpdepfile2"
 278       exit $stat
 279    fi
 280
 281    if test -f "$tmpdepfile1"; then
 282       tmpdepfile="$tmpdepfile1"
 283    else
 284       tmpdepfile="$tmpdepfile2"
 285    fi
 286    if test -f "$tmpdepfile"; then
 287       sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
 288       # That's a tab and a space in the [].
 289       sed -e 's,^.*\.[a-z]*:[    ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
 290    else
 291       echo "#dummy" > "$depfile"
 292    fi
 293    rm -f "$tmpdepfile"
 294    ;;
 295
 296 #nosideeffect)
 297   # This comment above is used by automake to tell side-effect
 298   # dependency tracking mechanisms from slower ones.
 299
 300 dashmstdout)
 301   # Important note: in order to support this mode, a compiler *must*
 302   # always write the preprocessed file to stdout, regardless of -o.
 303   "$@" || exit $?
 304
 305   # Remove the call to Libtool.
 306   if test "$libtool" = yes; then
 307     while test $1 != '--mode=compile'; do
 308       shift
 309     done
 310     shift
 311   fi
 312
 313   # Remove `-o $object'.
 314   IFS=" "
 315   for arg
 316   do
 317     case $arg in
 318     -o)
 319       shift
 320       ;;
 321     $object)
 322       shift
 323       ;;
 324     *)
 325       set fnord "$@" "$arg"
 326       shift # fnord
 327       shift # $arg
 328       ;;
 329     esac
 330   done
 331
 332   test -z "$dashmflag" && dashmflag=-M
 333   # Require at least two characters before searching for `:'
 334   # in the target name.  This is to cope with DOS-style filenames:
 335   # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
 336   "$@" $dashmflag |
 337     sed 's:^[  ]*[^: ][^:][^:]*\:[    ]*:'"$object"'\: :' > "$tmpdepfile"
 338   rm -f "$depfile"
 339   cat < "$tmpdepfile" > "$depfile"
 340   tr ' ' '
 341 ' < "$tmpdepfile" | \
 342 ## Some versions of the HPUX 10.20 sed can't process this invocation
 343 ## correctly.  Breaking it into two sed invocations is a workaround.
 344     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
 345   rm -f "$tmpdepfile"
 346   ;;
 347
 348 dashXmstdout)
 349   # This case only exists to satisfy depend.m4.  It is never actually
 350   # run, as this mode is specially recognized in the preamble.
 351   exit 1
 352   ;;
 353
 354 makedepend)
 355   "$@" || exit $?
 356   # Remove any Libtool call
 357   if test "$libtool" = yes; then
 358     while test $1 != '--mode=compile'; do
 359       shift
 360     done
 361     shift
 362   fi
 363   # X makedepend
 364   shift
 365   cleared=no
 366   for arg in "$@"; do
 367     case $cleared in
 368     no)
 369       set ""; shift
 370       cleared=yes ;;
 371     esac
 372     case "$arg" in
 373     -D*|-I*)
 374       set fnord "$@" "$arg"; shift ;;
 375     # Strip any option that makedepend may not understand.  Remove
 376     # the object too, otherwise makedepend will parse it as a source file.
 377     -*|$object)
 378       ;;
 379     *)
 380       set fnord "$@" "$arg"; shift ;;
 381     esac
 382   done
 383   obj_suffix="`echo $object | sed 's/^.*\././'`"
 384   touch "$tmpdepfile"
 385   ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
 386   rm -f "$depfile"
 387   cat < "$tmpdepfile" > "$depfile"
 388   sed '1,2d' "$tmpdepfile" | tr ' ' '
 389 ' | \
 390 ## Some versions of the HPUX 10.20 sed can't process this invocation
 391 ## correctly.  Breaking it into two sed invocations is a workaround.
 392     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
 393   rm -f "$tmpdepfile" "$tmpdepfile".bak
 394   ;;
 395
 396 cpp)
 397   # Important note: in order to support this mode, a compiler *must*
 398   # always write the preprocessed file to stdout.
 399   "$@" || exit $?
 400
 401   # Remove the call to Libtool.
 402   if test "$libtool" = yes; then
 403     while test $1 != '--mode=compile'; do
 404       shift
 405     done
 406     shift
 407   fi
 408
 409   # Remove `-o $object'.
 410   IFS=" "
 411   for arg
 412   do
 413     case $arg in
 414     -o)
 415       shift
 416       ;;
 417     $object)
 418       shift
 419       ;;
 420     *)
 421       set fnord "$@" "$arg"
 422       shift # fnord
 423       shift # $arg
 424       ;;
 425     esac
 426   done
 427
 428   "$@" -E |
 429     sed -n '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
 430     sed '$ s: \\$::' > "$tmpdepfile"
 431   rm -f "$depfile"
 432   echo "$object : \\" > "$depfile"
 433   cat < "$tmpdepfile" >> "$depfile"
 434   sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
 435   rm -f "$tmpdepfile"
 436   ;;
 437
 438 msvisualcpp)
 439   # Important note: in order to support this mode, a compiler *must*
 440   # always write the preprocessed file to stdout, regardless of -o,
 441   # because we must use -o when running libtool.
 442   "$@" || exit $?
 443   IFS=" "
 444   for arg
 445   do
 446     case "$arg" in
 447     "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
 448         set fnord "$@"
 449         shift
 450         shift
 451         ;;
 452     *)
 453         set fnord "$@" "$arg"
 454         shift
 455         shift
 456         ;;
 457     esac
 458   done
 459   "$@" -E |
 460   sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
 461   rm -f "$depfile"
 462   echo "$object : \\" > "$depfile"
 463   . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::    \1 \\:p' >> "$depfile"
 464   echo "        " >> "$depfile"
 465   . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
 466   rm -f "$tmpdepfile"
 467   ;;
 468
 469 none)
 470   exec "$@"
 471   ;;
 472
 473 *)
 474   echo "Unknown depmode $depmode" 1>&2
 475   exit 1
 476   ;;
 477 esac
 478
 479 exit 0