source: releases/2.9.8/depcomp @ 2276

Last change on this file since 2276 was 310, checked in by andreasw, 12 years ago

first commit for autotools conversion to be able to move more files

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1#! /bin/sh
2# depcomp - compile a program generating dependencies as side-effects
3
4scriptversion=2005-07-09.11
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
30case $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
37Usage: depcomp [--help] [--version] PROGRAM [ARGS]
38
39Run PROGRAMS ARGS to compile a file, generating dependencies
40as side-effects.
41
42Environment 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
51Report bugs to <bug-automake@gnu.org>.
52EOF
53    exit $?
54    ;;
55  -v | --v*)
56    echo "depcomp $scriptversion"
57    exit $?
58    ;;
59esac
60
61if test -z "$depmode" || test -z "$source" || test -z "$object"; then
62  echo "depcomp: Variables source, object and depmode must be set" 1>&2
63  exit 1
64fi
65
66# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
67depfile=${depfile-`echo "$object" |
68  sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
69tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
70
71rm -f "$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.
77if test "$depmode" = hp; then
78  # HP compiler uses -M and no extra arg.
79  gccflag=-M
80  depmode=gcc
81fi
82
83if test "$depmode" = dashXmstdout; then
84   # This is just like dashmstdout with a different argument.
85   dashmflag=-xM
86   depmode=dashmstdout
87fi
88
89case "$depmode" in
90gcc3)
91## gcc 3 implements dependency tracking that does exactly what
92## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
93## it if -MD -MP comes after the -MF stuff.  Hmm.
94  "$@" -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" "$depfile"
102  ;;
103
104gcc)
105## There are various ways to get dependency output from gcc.  Here's
106## why we pick this rather obscure method:
107## - Don't want to use -MD because we'd like the dependencies to end
108##   up in a subdir.  Having to rename by hand is ugly.
109##   (We might end up doing this anyway to support other compilers.)
110## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
111##   -MM, not -M (despite what the docs say).
112## - Using -M directly means running the compiler twice (even worse
113##   than renaming).
114  if test -z "$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 "$tmpdepfile"
145  ;;
146
147hp)
148  # This case exists only to let depend.m4 do its work.  It works by
149  # looking at the text of this script.  This case will never be run,
150  # since it is checked for above.
151  exit 1
152  ;;
153
154sgi)
155  if test "$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 "$tmpdepfile"
196  ;;
197
198aix)
199  # The C for AIX Compiler uses -M and outputs the dependencies
200  # in a .u file.  In older versions, this file always lives in the
201  # current directory.  Also, the AIX compiler puts `$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 "$tmpdepfile"
239  ;;
240
241icc)
242  # Intel's C compiler understands `-MD -MF file'.  However on
243  #    icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
244  # ICC 7.0 will fill foo.d with something like
245  #    foo.o: sub/foo.c
246  #    foo.o: sub/foo.h
247  # which is wrong.  We want:
248  #    sub/foo.o: sub/foo.c
249  #    sub/foo.o: sub/foo.h
250  #    sub/foo.c:
251  #    sub/foo.h:
252  # ICC 7.1 will output
253  #    foo.o: sub/foo.c sub/foo.h
254  # and will wrap long lines using \ :
255  #    foo.o: sub/foo.c ... \
256  #     sub/foo.h ... \
257  #     ...
258
259  "$@" -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
279tru64)
280   # The Tru64 compiler uses -MD to generate dependencies as a side
281   # effect.  `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
282   # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
283   # dependencies in `foo.d' instead, so we check for that too.
284   # Subdirectories are respected.
285   dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
286   test "x$dir" = "x$object" && dir=
287   base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
288
289   if test "$libtool" = yes; then
290      # With Tru64 cc, shared objects can also be used to make a
291      # static library.  This mecanism is used in libtool 1.4 series to
292      # handle both shared and static libraries in a single compilation.
293      # With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
294      #
295      # With libtool 1.5 this exception was removed, and libtool now
296      # generates 2 separate objects for the 2 libraries.  These two
297      # compilations output dependencies in in $dir.libs/$base.o.d and
298      # in $dir$base.o.d.  We have to check for both files, because
299      # one of the two compilations can be disabled.  We should prefer
300      # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
301      # automatically cleaned when .libs/ is deleted, while ignoring
302      # the former would cause a distcleancheck panic.
303      tmpdepfile1=$dir.libs/$base.lo.d   # libtool 1.4
304      tmpdepfile2=$dir$base.o.d          # libtool 1.5
305      tmpdepfile3=$dir.libs/$base.o.d    # libtool 1.5
306      tmpdepfile4=$dir.libs/$base.d      # Compaq CCC V6.2-504
307      "$@" -Wc,-MD
308   else
309      tmpdepfile1=$dir$base.o.d
310      tmpdepfile2=$dir$base.d
311      tmpdepfile3=$dir$base.d
312      tmpdepfile4=$dir$base.d
313      "$@" -MD
314   fi
315
316   stat=$?
317   if test $stat -eq 0; then :
318   else
319      rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
320      exit $stat
321   fi
322
323   for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
324   do
325     test -f "$tmpdepfile" && break
326   done
327   if test -f "$tmpdepfile"; then
328      sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
329      # That's a tab and a space in the [].
330      sed -e 's,^.*\.[a-z]*:[    ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
331   else
332      echo "#dummy" > "$depfile"
333   fi
334   rm -f "$tmpdepfile"
335   ;;
336
337#nosideeffect)
338  # This comment above is used by automake to tell side-effect
339  # dependency tracking mechanisms from slower ones.
340
341dashmstdout)
342  # Important note: in order to support this mode, a compiler *must*
343  # always write the preprocessed file to stdout, regardless of -o.
344  "$@" || exit $?
345
346  # Remove the call to Libtool.
347  if test "$libtool" = yes; then
348    while test $1 != '--mode=compile'; do
349      shift
350    done
351    shift
352  fi
353
354  # Remove `-o $object'.
355  IFS=" "
356  for arg
357  do
358    case $arg in
359    -o)
360      shift
361      ;;
362    $object)
363      shift
364      ;;
365    *)
366      set fnord "$@" "$arg"
367      shift # fnord
368      shift # $arg
369      ;;
370    esac
371  done
372
373  test -z "$dashmflag" && dashmflag=-M
374  # Require at least two characters before searching for `:'
375  # in the target name.  This is to cope with DOS-style filenames:
376  # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
377  "$@" $dashmflag |
378    sed 's:^[  ]*[^: ][^:][^:]*\:[    ]*:'"$object"'\: :' > "$tmpdepfile"
379  rm -f "$depfile"
380  cat < "$tmpdepfile" > "$depfile"
381  tr ' ' '
382' < "$tmpdepfile" | \
383## Some versions of the HPUX 10.20 sed can't process this invocation
384## correctly.  Breaking it into two sed invocations is a workaround.
385    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
386  rm -f "$tmpdepfile"
387  ;;
388
389dashXmstdout)
390  # This case only exists to satisfy depend.m4.  It is never actually
391  # run, as this mode is specially recognized in the preamble.
392  exit 1
393  ;;
394
395makedepend)
396  "$@" || exit $?
397  # Remove any Libtool call
398  if test "$libtool" = yes; then
399    while test $1 != '--mode=compile'; do
400      shift
401    done
402    shift
403  fi
404  # X makedepend
405  shift
406  cleared=no
407  for arg in "$@"; do
408    case $cleared in
409    no)
410      set ""; shift
411      cleared=yes ;;
412    esac
413    case "$arg" in
414    -D*|-I*)
415      set fnord "$@" "$arg"; shift ;;
416    # Strip any option that makedepend may not understand.  Remove
417    # the object too, otherwise makedepend will parse it as a source file.
418    -*|$object)
419      ;;
420    *)
421      set fnord "$@" "$arg"; shift ;;
422    esac
423  done
424  obj_suffix="`echo $object | sed 's/^.*\././'`"
425  touch "$tmpdepfile"
426  ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
427  rm -f "$depfile"
428  cat < "$tmpdepfile" > "$depfile"
429  sed '1,2d' "$tmpdepfile" | tr ' ' '
430' | \
431## Some versions of the HPUX 10.20 sed can't process this invocation
432## correctly.  Breaking it into two sed invocations is a workaround.
433    sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
434  rm -f "$tmpdepfile" "$tmpdepfile".bak
435  ;;
436
437cpp)
438  # Important note: in order to support this mode, a compiler *must*
439  # always write the preprocessed file to stdout.
440  "$@" || exit $?
441
442  # Remove the call to Libtool.
443  if test "$libtool" = yes; then
444    while test $1 != '--mode=compile'; do
445      shift
446    done
447    shift
448  fi
449
450  # Remove `-o $object'.
451  IFS=" "
452  for arg
453  do
454    case $arg in
455    -o)
456      shift
457      ;;
458    $object)
459      shift
460      ;;
461    *)
462      set fnord "$@" "$arg"
463      shift # fnord
464      shift # $arg
465      ;;
466    esac
467  done
468
469  "$@" -E |
470    sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
471       -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
472    sed '$ s: \\$::' > "$tmpdepfile"
473  rm -f "$depfile"
474  echo "$object : \\" > "$depfile"
475  cat < "$tmpdepfile" >> "$depfile"
476  sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
477  rm -f "$tmpdepfile"
478  ;;
479
480msvisualcpp)
481  # Important note: in order to support this mode, a compiler *must*
482  # always write the preprocessed file to stdout, regardless of -o,
483  # because we must use -o when running libtool.
484  "$@" || exit $?
485  IFS=" "
486  for arg
487  do
488    case "$arg" in
489    "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
490        set fnord "$@"
491        shift
492        shift
493        ;;
494    *)
495        set fnord "$@" "$arg"
496        shift
497        shift
498        ;;
499    esac
500  done
501  "$@" -E |
502  sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
503  rm -f "$depfile"
504  echo "$object : \\" > "$depfile"
505  . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::    \1 \\:p' >> "$depfile"
506  echo "        " >> "$depfile"
507  . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
508  rm -f "$tmpdepfile"
509  ;;
510
511none)
512  exec "$@"
513  ;;
514
515*)
516  echo "Unknown depmode $depmode" 1>&2
517  exit 1
518  ;;
519esac
520
521exit 0
522
523# Local Variables:
524# mode: shell-script
525# sh-indentation: 2
526# eval: (add-hook 'write-file-hooks 'time-stamp)
527# time-stamp-start: "scriptversion="
528# time-stamp-format: "%:y-%02m-%02d.%02H"
529# time-stamp-end: "$"
530# End:
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