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., 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 "$tmpdepfile"
171  ;;
172
173aix)
174  # The C for AIX Compiler uses -M and outputs the dependencies
175  # in a .u file.  In older versions, this file always lives in the
176  # current directory.  Also, the AIX compiler puts `$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 "$tmpdepfile"
214  ;;
215
216icc)
217  # Intel's C compiler understands `-MD -MF file'.  However on
218  #    icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
219  # ICC 7.0 will fill foo.d with something like
220  #    foo.o: sub/foo.c
221  #    foo.o: sub/foo.h
222  # which is wrong.  We want:
223  #    sub/foo.o: sub/foo.c
224  #    sub/foo.o: sub/foo.h
225  #    sub/foo.c:
226  #    sub/foo.h:
227  # ICC 7.1 will output
228  #    foo.o: sub/foo.c sub/foo.h
229  # and will wrap long lines using \ :
230  #    foo.o: sub/foo.c ... \
231  #     sub/foo.h ... \
232  #     ...
233
234  "$@" -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
254tru64)
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 "$tmpdepfile"
294   ;;
295
296#nosideeffect)
297  # This comment above is used by automake to tell side-effect
298  # dependency tracking mechanisms from slower ones.
299
300dashmstdout)
301  # Important note: in order to support this mode, a compiler *must*
302  # always write the preprocessed file to stdout, regardless of -o.
303  "$@" || 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 "$tmpdepfile"
346  ;;
347
348dashXmstdout)
349  # This case only exists to satisfy depend.m4.  It is never actually
350  # run, as this mode is specially recognized in the preamble.
351  exit 1
352  ;;
353
354makedepend)
355  "$@" || 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
396cpp)
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 "$tmpdepfile"
436  ;;
437
438msvisualcpp)
439  # Important note: in order to support this mode, a compiler *must*
440  # always write the preprocessed file to stdout, regardless of -o,
441  # because we must use -o when running libtool.
442  "$@" || 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 "$tmpdepfile"
467  ;;
468
469none)
470  exec "$@"
471  ;;
472
473*)
474  echo "Unknown depmode $depmode" 1>&2
475  exit 1
476  ;;
477esac
478
479exit 0
480