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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
28if test -z "$depmode" || test -z "$source" || test -z "$object"; then
29  echo "depcomp: Variables source, object and depmode must be set" 1>&2
30  exit 1
31fi
32# `libtool' can also be set to `yes' or `no'.
33
34if test -z "$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/$base"
42fi
43
44tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
45
46rm -f "$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.
52if test "$depmode" = hp; then
53  # HP compiler uses -M and no extra arg.
54  gccflag=-M
55  depmode=gcc
56fi
57
58if test "$depmode" = dashXmstdout; then
59   # This is just like dashmstdout with a different argument.
60   dashmflag=-xM
61   depmode=dashmstdout
62fi
63
64case "$depmode" in
65gcc3)
66## gcc 3 implements dependency tracking that does exactly what
67## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
68## it if -MD -MP comes after the -MF stuff.  Hmm.
69  "$@" -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" "$depfile"
77  ;;
78
79gcc)
80## There are various ways to get dependency output from gcc.  Here's
81## why we pick this rather obscure method:
82## - Don't want to use -MD because we'd like the dependencies to end
83##   up in a subdir.  Having to rename by hand is ugly.
84##   (We might end up doing this anyway to support other compilers.)
85## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
86##   -MM, not -M (despite what the docs say).
87## - Using -M directly means running the compiler twice (even worse
88##   than renaming).
89  if test -z "$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 "$tmpdepfile"
120  ;;
121
122hp)
123  # This case exists only to let depend.m4 do its work.  It works by
124  # looking at the text of this script.  This case will never be run,
125  # since it is checked for above.
126  exit 1
127  ;;
128
129sgi)
130  if test "$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 "$tmpdepfile"
171  ;;
172
173aix)
174  # The C for AIX Compiler uses -M and outputs the dependencies
175  # in a .u file.  This file always lives in the current directory.
176  # Also, the AIX compiler puts `$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 "$tmpdepfile"
207  ;;
208
209icc)
210  # Intel's C compiler understands `-MD -MF file'.  However on
211  #    icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
212  # ICC 7.0 will fill foo.d with something like
213  #    foo.o: sub/foo.c
214  #    foo.o: sub/foo.h
215  # which is wrong.  We want:
216  #    sub/foo.o: sub/foo.c
217  #    sub/foo.o: sub/foo.h
218  #    sub/foo.c:
219  #    sub/foo.h:
220  # ICC 7.1 will output
221  #    foo.o: sub/foo.c sub/foo.h
222  # and will wrap long lines using \ :
223  #    foo.o: sub/foo.c ... \
224  #     sub/foo.h ... \
225  #     ...
226
227  "$@" -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
247tru64)
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 "$tmpdepfile"
287   ;;
288
289#nosideeffect)
290  # This comment above is used by automake to tell side-effect
291  # dependency tracking mechanisms from slower ones.
292
293dashmstdout)
294  # Important note: in order to support this mode, a compiler *must*
295  # always write the proprocessed file to stdout, regardless of -o.
296  "$@" || 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 "$tmpdepfile"
339  ;;
340
341dashXmstdout)
342  # This case only exists to satisfy depend.m4.  It is never actually
343  # run, as this mode is specially recognized in the preamble.
344  exit 1
345  ;;
346
347makedepend)
348  "$@" || 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
389cpp)
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 "$tmpdepfile"
429  ;;
430
431msvisualcpp)
432  # Important note: in order to support this mode, a compiler *must*
433  # always write the proprocessed file to stdout, regardless of -o,
434  # because we must use -o when running libtool.
435  "$@" || 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 "$tmpdepfile"
460  ;;
461
462none)
463  exec "$@"
464  ;;
465
466*)
467  echo "Unknown depmode $depmode" 1>&2
468  exit 1
469  ;;
470esac
471
472exit 0
473