xref: /netbsd-src/external/mit/isl/dist/interface/depcomp (revision 5971e316fdea024efff6be8f03536623db06833e)
1*5971e316Smrg#! /bin/sh
2*5971e316Smrg# depcomp - compile a program generating dependencies as side-effects
3*5971e316Smrg
4*5971e316Smrgscriptversion=2018-03-07.03; # UTC
5*5971e316Smrg
6*5971e316Smrg# Copyright (C) 1999-2021 Free Software Foundation, Inc.
7*5971e316Smrg
8*5971e316Smrg# This program is free software; you can redistribute it and/or modify
9*5971e316Smrg# it under the terms of the GNU General Public License as published by
10*5971e316Smrg# the Free Software Foundation; either version 2, or (at your option)
11*5971e316Smrg# any later version.
12*5971e316Smrg
13*5971e316Smrg# This program is distributed in the hope that it will be useful,
14*5971e316Smrg# but WITHOUT ANY WARRANTY; without even the implied warranty of
15*5971e316Smrg# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16*5971e316Smrg# GNU General Public License for more details.
17*5971e316Smrg
18*5971e316Smrg# You should have received a copy of the GNU General Public License
19*5971e316Smrg# along with this program.  If not, see <https://www.gnu.org/licenses/>.
20*5971e316Smrg
21*5971e316Smrg# As a special exception to the GNU General Public License, if you
22*5971e316Smrg# distribute this file as part of a program that contains a
23*5971e316Smrg# configuration script generated by Autoconf, you may include it under
24*5971e316Smrg# the same distribution terms that you use for the rest of that program.
25*5971e316Smrg
26*5971e316Smrg# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
27*5971e316Smrg
28*5971e316Smrgcase $1 in
29*5971e316Smrg  '')
30*5971e316Smrg    echo "$0: No command.  Try '$0 --help' for more information." 1>&2
31*5971e316Smrg    exit 1;
32*5971e316Smrg    ;;
33*5971e316Smrg  -h | --h*)
34*5971e316Smrg    cat <<\EOF
35*5971e316SmrgUsage: depcomp [--help] [--version] PROGRAM [ARGS]
36*5971e316Smrg
37*5971e316SmrgRun PROGRAMS ARGS to compile a file, generating dependencies
38*5971e316Smrgas side-effects.
39*5971e316Smrg
40*5971e316SmrgEnvironment variables:
41*5971e316Smrg  depmode     Dependency tracking mode.
42*5971e316Smrg  source      Source file read by 'PROGRAMS ARGS'.
43*5971e316Smrg  object      Object file output by 'PROGRAMS ARGS'.
44*5971e316Smrg  DEPDIR      directory where to store dependencies.
45*5971e316Smrg  depfile     Dependency file to output.
46*5971e316Smrg  tmpdepfile  Temporary file to use when outputting dependencies.
47*5971e316Smrg  libtool     Whether libtool is used (yes/no).
48*5971e316Smrg
49*5971e316SmrgReport bugs to <bug-automake@gnu.org>.
50*5971e316SmrgEOF
51*5971e316Smrg    exit $?
52*5971e316Smrg    ;;
53*5971e316Smrg  -v | --v*)
54*5971e316Smrg    echo "depcomp $scriptversion"
55*5971e316Smrg    exit $?
56*5971e316Smrg    ;;
57*5971e316Smrgesac
58*5971e316Smrg
59*5971e316Smrg# Get the directory component of the given path, and save it in the
60*5971e316Smrg# global variables '$dir'.  Note that this directory component will
61*5971e316Smrg# be either empty or ending with a '/' character.  This is deliberate.
62*5971e316Smrgset_dir_from ()
63*5971e316Smrg{
64*5971e316Smrg  case $1 in
65*5971e316Smrg    */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;;
66*5971e316Smrg      *) dir=;;
67*5971e316Smrg  esac
68*5971e316Smrg}
69*5971e316Smrg
70*5971e316Smrg# Get the suffix-stripped basename of the given path, and save it the
71*5971e316Smrg# global variable '$base'.
72*5971e316Smrgset_base_from ()
73*5971e316Smrg{
74*5971e316Smrg  base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'`
75*5971e316Smrg}
76*5971e316Smrg
77*5971e316Smrg# If no dependency file was actually created by the compiler invocation,
78*5971e316Smrg# we still have to create a dummy depfile, to avoid errors with the
79*5971e316Smrg# Makefile "include basename.Plo" scheme.
80*5971e316Smrgmake_dummy_depfile ()
81*5971e316Smrg{
82*5971e316Smrg  echo "#dummy" > "$depfile"
83*5971e316Smrg}
84*5971e316Smrg
85*5971e316Smrg# Factor out some common post-processing of the generated depfile.
86*5971e316Smrg# Requires the auxiliary global variable '$tmpdepfile' to be set.
87*5971e316Smrgaix_post_process_depfile ()
88*5971e316Smrg{
89*5971e316Smrg  # If the compiler actually managed to produce a dependency file,
90*5971e316Smrg  # post-process it.
91*5971e316Smrg  if test -f "$tmpdepfile"; then
92*5971e316Smrg    # Each line is of the form 'foo.o: dependency.h'.
93*5971e316Smrg    # Do two passes, one to just change these to
94*5971e316Smrg    #   $object: dependency.h
95*5971e316Smrg    # and one to simply output
96*5971e316Smrg    #   dependency.h:
97*5971e316Smrg    # which is needed to avoid the deleted-header problem.
98*5971e316Smrg    { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile"
99*5971e316Smrg      sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile"
100*5971e316Smrg    } > "$depfile"
101*5971e316Smrg    rm -f "$tmpdepfile"
102*5971e316Smrg  else
103*5971e316Smrg    make_dummy_depfile
104*5971e316Smrg  fi
105*5971e316Smrg}
106*5971e316Smrg
107*5971e316Smrg# A tabulation character.
108*5971e316Smrgtab='	'
109*5971e316Smrg# A newline character.
110*5971e316Smrgnl='
111*5971e316Smrg'
112*5971e316Smrg# Character ranges might be problematic outside the C locale.
113*5971e316Smrg# These definitions help.
114*5971e316Smrgupper=ABCDEFGHIJKLMNOPQRSTUVWXYZ
115*5971e316Smrglower=abcdefghijklmnopqrstuvwxyz
116*5971e316Smrgdigits=0123456789
117*5971e316Smrgalpha=${upper}${lower}
118*5971e316Smrg
119*5971e316Smrgif test -z "$depmode" || test -z "$source" || test -z "$object"; then
120*5971e316Smrg  echo "depcomp: Variables source, object and depmode must be set" 1>&2
121*5971e316Smrg  exit 1
122*5971e316Smrgfi
123*5971e316Smrg
124*5971e316Smrg# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
125*5971e316Smrgdepfile=${depfile-`echo "$object" |
126*5971e316Smrg  sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
127*5971e316Smrgtmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
128*5971e316Smrg
129*5971e316Smrgrm -f "$tmpdepfile"
130*5971e316Smrg
131*5971e316Smrg# Avoid interferences from the environment.
132*5971e316Smrggccflag= dashmflag=
133*5971e316Smrg
134*5971e316Smrg# Some modes work just like other modes, but use different flags.  We
135*5971e316Smrg# parameterize here, but still list the modes in the big case below,
136*5971e316Smrg# to make depend.m4 easier to write.  Note that we *cannot* use a case
137*5971e316Smrg# here, because this file can only contain one case statement.
138*5971e316Smrgif test "$depmode" = hp; then
139*5971e316Smrg  # HP compiler uses -M and no extra arg.
140*5971e316Smrg  gccflag=-M
141*5971e316Smrg  depmode=gcc
142*5971e316Smrgfi
143*5971e316Smrg
144*5971e316Smrgif test "$depmode" = dashXmstdout; then
145*5971e316Smrg  # This is just like dashmstdout with a different argument.
146*5971e316Smrg  dashmflag=-xM
147*5971e316Smrg  depmode=dashmstdout
148*5971e316Smrgfi
149*5971e316Smrg
150*5971e316Smrgcygpath_u="cygpath -u -f -"
151*5971e316Smrgif test "$depmode" = msvcmsys; then
152*5971e316Smrg  # This is just like msvisualcpp but w/o cygpath translation.
153*5971e316Smrg  # Just convert the backslash-escaped backslashes to single forward
154*5971e316Smrg  # slashes to satisfy depend.m4
155*5971e316Smrg  cygpath_u='sed s,\\\\,/,g'
156*5971e316Smrg  depmode=msvisualcpp
157*5971e316Smrgfi
158*5971e316Smrg
159*5971e316Smrgif test "$depmode" = msvc7msys; then
160*5971e316Smrg  # This is just like msvc7 but w/o cygpath translation.
161*5971e316Smrg  # Just convert the backslash-escaped backslashes to single forward
162*5971e316Smrg  # slashes to satisfy depend.m4
163*5971e316Smrg  cygpath_u='sed s,\\\\,/,g'
164*5971e316Smrg  depmode=msvc7
165*5971e316Smrgfi
166*5971e316Smrg
167*5971e316Smrgif test "$depmode" = xlc; then
168*5971e316Smrg  # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information.
169*5971e316Smrg  gccflag=-qmakedep=gcc,-MF
170*5971e316Smrg  depmode=gcc
171*5971e316Smrgfi
172*5971e316Smrg
173*5971e316Smrgcase "$depmode" in
174*5971e316Smrggcc3)
175*5971e316Smrg## gcc 3 implements dependency tracking that does exactly what
176*5971e316Smrg## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
177*5971e316Smrg## it if -MD -MP comes after the -MF stuff.  Hmm.
178*5971e316Smrg## Unfortunately, FreeBSD c89 acceptance of flags depends upon
179*5971e316Smrg## the command line argument order; so add the flags where they
180*5971e316Smrg## appear in depend2.am.  Note that the slowdown incurred here
181*5971e316Smrg## affects only configure: in makefiles, %FASTDEP% shortcuts this.
182*5971e316Smrg  for arg
183*5971e316Smrg  do
184*5971e316Smrg    case $arg in
185*5971e316Smrg    -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
186*5971e316Smrg    *)  set fnord "$@" "$arg" ;;
187*5971e316Smrg    esac
188*5971e316Smrg    shift # fnord
189*5971e316Smrg    shift # $arg
190*5971e316Smrg  done
191*5971e316Smrg  "$@"
192*5971e316Smrg  stat=$?
193*5971e316Smrg  if test $stat -ne 0; then
194*5971e316Smrg    rm -f "$tmpdepfile"
195*5971e316Smrg    exit $stat
196*5971e316Smrg  fi
197*5971e316Smrg  mv "$tmpdepfile" "$depfile"
198*5971e316Smrg  ;;
199*5971e316Smrg
200*5971e316Smrggcc)
201*5971e316Smrg## Note that this doesn't just cater to obsosete pre-3.x GCC compilers.
202*5971e316Smrg## but also to in-use compilers like IMB xlc/xlC and the HP C compiler.
203*5971e316Smrg## (see the conditional assignment to $gccflag above).
204*5971e316Smrg## There are various ways to get dependency output from gcc.  Here's
205*5971e316Smrg## why we pick this rather obscure method:
206*5971e316Smrg## - Don't want to use -MD because we'd like the dependencies to end
207*5971e316Smrg##   up in a subdir.  Having to rename by hand is ugly.
208*5971e316Smrg##   (We might end up doing this anyway to support other compilers.)
209*5971e316Smrg## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
210*5971e316Smrg##   -MM, not -M (despite what the docs say).  Also, it might not be
211*5971e316Smrg##   supported by the other compilers which use the 'gcc' depmode.
212*5971e316Smrg## - Using -M directly means running the compiler twice (even worse
213*5971e316Smrg##   than renaming).
214*5971e316Smrg  if test -z "$gccflag"; then
215*5971e316Smrg    gccflag=-MD,
216*5971e316Smrg  fi
217*5971e316Smrg  "$@" -Wp,"$gccflag$tmpdepfile"
218*5971e316Smrg  stat=$?
219*5971e316Smrg  if test $stat -ne 0; then
220*5971e316Smrg    rm -f "$tmpdepfile"
221*5971e316Smrg    exit $stat
222*5971e316Smrg  fi
223*5971e316Smrg  rm -f "$depfile"
224*5971e316Smrg  echo "$object : \\" > "$depfile"
225*5971e316Smrg  # The second -e expression handles DOS-style file names with drive
226*5971e316Smrg  # letters.
227*5971e316Smrg  sed -e 's/^[^:]*: / /' \
228*5971e316Smrg      -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
229*5971e316Smrg## This next piece of magic avoids the "deleted header file" problem.
230*5971e316Smrg## The problem is that when a header file which appears in a .P file
231*5971e316Smrg## is deleted, the dependency causes make to die (because there is
232*5971e316Smrg## typically no way to rebuild the header).  We avoid this by adding
233*5971e316Smrg## dummy dependencies for each header file.  Too bad gcc doesn't do
234*5971e316Smrg## this for us directly.
235*5971e316Smrg## Some versions of gcc put a space before the ':'.  On the theory
236*5971e316Smrg## that the space means something, we add a space to the output as
237*5971e316Smrg## well.  hp depmode also adds that space, but also prefixes the VPATH
238*5971e316Smrg## to the object.  Take care to not repeat it in the output.
239*5971e316Smrg## Some versions of the HPUX 10.20 sed can't process this invocation
240*5971e316Smrg## correctly.  Breaking it into two sed invocations is a workaround.
241*5971e316Smrg  tr ' ' "$nl" < "$tmpdepfile" \
242*5971e316Smrg    | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \
243*5971e316Smrg    | sed -e 's/$/ :/' >> "$depfile"
244*5971e316Smrg  rm -f "$tmpdepfile"
245*5971e316Smrg  ;;
246*5971e316Smrg
247*5971e316Smrghp)
248*5971e316Smrg  # This case exists only to let depend.m4 do its work.  It works by
249*5971e316Smrg  # looking at the text of this script.  This case will never be run,
250*5971e316Smrg  # since it is checked for above.
251*5971e316Smrg  exit 1
252*5971e316Smrg  ;;
253*5971e316Smrg
254*5971e316Smrgsgi)
255*5971e316Smrg  if test "$libtool" = yes; then
256*5971e316Smrg    "$@" "-Wp,-MDupdate,$tmpdepfile"
257*5971e316Smrg  else
258*5971e316Smrg    "$@" -MDupdate "$tmpdepfile"
259*5971e316Smrg  fi
260*5971e316Smrg  stat=$?
261*5971e316Smrg  if test $stat -ne 0; then
262*5971e316Smrg    rm -f "$tmpdepfile"
263*5971e316Smrg    exit $stat
264*5971e316Smrg  fi
265*5971e316Smrg  rm -f "$depfile"
266*5971e316Smrg
267*5971e316Smrg  if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
268*5971e316Smrg    echo "$object : \\" > "$depfile"
269*5971e316Smrg    # Clip off the initial element (the dependent).  Don't try to be
270*5971e316Smrg    # clever and replace this with sed code, as IRIX sed won't handle
271*5971e316Smrg    # lines with more than a fixed number of characters (4096 in
272*5971e316Smrg    # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
273*5971e316Smrg    # the IRIX cc adds comments like '#:fec' to the end of the
274*5971e316Smrg    # dependency line.
275*5971e316Smrg    tr ' ' "$nl" < "$tmpdepfile" \
276*5971e316Smrg      | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \
277*5971e316Smrg      | tr "$nl" ' ' >> "$depfile"
278*5971e316Smrg    echo >> "$depfile"
279*5971e316Smrg    # The second pass generates a dummy entry for each header file.
280*5971e316Smrg    tr ' ' "$nl" < "$tmpdepfile" \
281*5971e316Smrg      | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
282*5971e316Smrg      >> "$depfile"
283*5971e316Smrg  else
284*5971e316Smrg    make_dummy_depfile
285*5971e316Smrg  fi
286*5971e316Smrg  rm -f "$tmpdepfile"
287*5971e316Smrg  ;;
288*5971e316Smrg
289*5971e316Smrgxlc)
290*5971e316Smrg  # This case exists only to let depend.m4 do its work.  It works by
291*5971e316Smrg  # looking at the text of this script.  This case will never be run,
292*5971e316Smrg  # since it is checked for above.
293*5971e316Smrg  exit 1
294*5971e316Smrg  ;;
295*5971e316Smrg
296*5971e316Smrgaix)
297*5971e316Smrg  # The C for AIX Compiler uses -M and outputs the dependencies
298*5971e316Smrg  # in a .u file.  In older versions, this file always lives in the
299*5971e316Smrg  # current directory.  Also, the AIX compiler puts '$object:' at the
300*5971e316Smrg  # start of each line; $object doesn't have directory information.
301*5971e316Smrg  # Version 6 uses the directory in both cases.
302*5971e316Smrg  set_dir_from "$object"
303*5971e316Smrg  set_base_from "$object"
304*5971e316Smrg  if test "$libtool" = yes; then
305*5971e316Smrg    tmpdepfile1=$dir$base.u
306*5971e316Smrg    tmpdepfile2=$base.u
307*5971e316Smrg    tmpdepfile3=$dir.libs/$base.u
308*5971e316Smrg    "$@" -Wc,-M
309*5971e316Smrg  else
310*5971e316Smrg    tmpdepfile1=$dir$base.u
311*5971e316Smrg    tmpdepfile2=$dir$base.u
312*5971e316Smrg    tmpdepfile3=$dir$base.u
313*5971e316Smrg    "$@" -M
314*5971e316Smrg  fi
315*5971e316Smrg  stat=$?
316*5971e316Smrg  if test $stat -ne 0; then
317*5971e316Smrg    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
318*5971e316Smrg    exit $stat
319*5971e316Smrg  fi
320*5971e316Smrg
321*5971e316Smrg  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
322*5971e316Smrg  do
323*5971e316Smrg    test -f "$tmpdepfile" && break
324*5971e316Smrg  done
325*5971e316Smrg  aix_post_process_depfile
326*5971e316Smrg  ;;
327*5971e316Smrg
328*5971e316Smrgtcc)
329*5971e316Smrg  # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26
330*5971e316Smrg  # FIXME: That version still under development at the moment of writing.
331*5971e316Smrg  #        Make that this statement remains true also for stable, released
332*5971e316Smrg  #        versions.
333*5971e316Smrg  # It will wrap lines (doesn't matter whether long or short) with a
334*5971e316Smrg  # trailing '\', as in:
335*5971e316Smrg  #
336*5971e316Smrg  #   foo.o : \
337*5971e316Smrg  #    foo.c \
338*5971e316Smrg  #    foo.h \
339*5971e316Smrg  #
340*5971e316Smrg  # It will put a trailing '\' even on the last line, and will use leading
341*5971e316Smrg  # spaces rather than leading tabs (at least since its commit 0394caf7
342*5971e316Smrg  # "Emit spaces for -MD").
343*5971e316Smrg  "$@" -MD -MF "$tmpdepfile"
344*5971e316Smrg  stat=$?
345*5971e316Smrg  if test $stat -ne 0; then
346*5971e316Smrg    rm -f "$tmpdepfile"
347*5971e316Smrg    exit $stat
348*5971e316Smrg  fi
349*5971e316Smrg  rm -f "$depfile"
350*5971e316Smrg  # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'.
351*5971e316Smrg  # We have to change lines of the first kind to '$object: \'.
352*5971e316Smrg  sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile"
353*5971e316Smrg  # And for each line of the second kind, we have to emit a 'dep.h:'
354*5971e316Smrg  # dummy dependency, to avoid the deleted-header problem.
355*5971e316Smrg  sed -n -e 's|^  *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile"
356*5971e316Smrg  rm -f "$tmpdepfile"
357*5971e316Smrg  ;;
358*5971e316Smrg
359*5971e316Smrg## The order of this option in the case statement is important, since the
360*5971e316Smrg## shell code in configure will try each of these formats in the order
361*5971e316Smrg## listed in this file.  A plain '-MD' option would be understood by many
362*5971e316Smrg## compilers, so we must ensure this comes after the gcc and icc options.
363*5971e316Smrgpgcc)
364*5971e316Smrg  # Portland's C compiler understands '-MD'.
365*5971e316Smrg  # Will always output deps to 'file.d' where file is the root name of the
366*5971e316Smrg  # source file under compilation, even if file resides in a subdirectory.
367*5971e316Smrg  # The object file name does not affect the name of the '.d' file.
368*5971e316Smrg  # pgcc 10.2 will output
369*5971e316Smrg  #    foo.o: sub/foo.c sub/foo.h
370*5971e316Smrg  # and will wrap long lines using '\' :
371*5971e316Smrg  #    foo.o: sub/foo.c ... \
372*5971e316Smrg  #     sub/foo.h ... \
373*5971e316Smrg  #     ...
374*5971e316Smrg  set_dir_from "$object"
375*5971e316Smrg  # Use the source, not the object, to determine the base name, since
376*5971e316Smrg  # that's sadly what pgcc will do too.
377*5971e316Smrg  set_base_from "$source"
378*5971e316Smrg  tmpdepfile=$base.d
379*5971e316Smrg
380*5971e316Smrg  # For projects that build the same source file twice into different object
381*5971e316Smrg  # files, the pgcc approach of using the *source* file root name can cause
382*5971e316Smrg  # problems in parallel builds.  Use a locking strategy to avoid stomping on
383*5971e316Smrg  # the same $tmpdepfile.
384*5971e316Smrg  lockdir=$base.d-lock
385*5971e316Smrg  trap "
386*5971e316Smrg    echo '$0: caught signal, cleaning up...' >&2
387*5971e316Smrg    rmdir '$lockdir'
388*5971e316Smrg    exit 1
389*5971e316Smrg  " 1 2 13 15
390*5971e316Smrg  numtries=100
391*5971e316Smrg  i=$numtries
392*5971e316Smrg  while test $i -gt 0; do
393*5971e316Smrg    # mkdir is a portable test-and-set.
394*5971e316Smrg    if mkdir "$lockdir" 2>/dev/null; then
395*5971e316Smrg      # This process acquired the lock.
396*5971e316Smrg      "$@" -MD
397*5971e316Smrg      stat=$?
398*5971e316Smrg      # Release the lock.
399*5971e316Smrg      rmdir "$lockdir"
400*5971e316Smrg      break
401*5971e316Smrg    else
402*5971e316Smrg      # If the lock is being held by a different process, wait
403*5971e316Smrg      # until the winning process is done or we timeout.
404*5971e316Smrg      while test -d "$lockdir" && test $i -gt 0; do
405*5971e316Smrg        sleep 1
406*5971e316Smrg        i=`expr $i - 1`
407*5971e316Smrg      done
408*5971e316Smrg    fi
409*5971e316Smrg    i=`expr $i - 1`
410*5971e316Smrg  done
411*5971e316Smrg  trap - 1 2 13 15
412*5971e316Smrg  if test $i -le 0; then
413*5971e316Smrg    echo "$0: failed to acquire lock after $numtries attempts" >&2
414*5971e316Smrg    echo "$0: check lockdir '$lockdir'" >&2
415*5971e316Smrg    exit 1
416*5971e316Smrg  fi
417*5971e316Smrg
418*5971e316Smrg  if test $stat -ne 0; then
419*5971e316Smrg    rm -f "$tmpdepfile"
420*5971e316Smrg    exit $stat
421*5971e316Smrg  fi
422*5971e316Smrg  rm -f "$depfile"
423*5971e316Smrg  # Each line is of the form `foo.o: dependent.h',
424*5971e316Smrg  # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
425*5971e316Smrg  # Do two passes, one to just change these to
426*5971e316Smrg  # `$object: dependent.h' and one to simply `dependent.h:'.
427*5971e316Smrg  sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
428*5971e316Smrg  # Some versions of the HPUX 10.20 sed can't process this invocation
429*5971e316Smrg  # correctly.  Breaking it into two sed invocations is a workaround.
430*5971e316Smrg  sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \
431*5971e316Smrg    | sed -e 's/$/ :/' >> "$depfile"
432*5971e316Smrg  rm -f "$tmpdepfile"
433*5971e316Smrg  ;;
434*5971e316Smrg
435*5971e316Smrghp2)
436*5971e316Smrg  # The "hp" stanza above does not work with aCC (C++) and HP's ia64
437*5971e316Smrg  # compilers, which have integrated preprocessors.  The correct option
438*5971e316Smrg  # to use with these is +Maked; it writes dependencies to a file named
439*5971e316Smrg  # 'foo.d', which lands next to the object file, wherever that
440*5971e316Smrg  # happens to be.
441*5971e316Smrg  # Much of this is similar to the tru64 case; see comments there.
442*5971e316Smrg  set_dir_from  "$object"
443*5971e316Smrg  set_base_from "$object"
444*5971e316Smrg  if test "$libtool" = yes; then
445*5971e316Smrg    tmpdepfile1=$dir$base.d
446*5971e316Smrg    tmpdepfile2=$dir.libs/$base.d
447*5971e316Smrg    "$@" -Wc,+Maked
448*5971e316Smrg  else
449*5971e316Smrg    tmpdepfile1=$dir$base.d
450*5971e316Smrg    tmpdepfile2=$dir$base.d
451*5971e316Smrg    "$@" +Maked
452*5971e316Smrg  fi
453*5971e316Smrg  stat=$?
454*5971e316Smrg  if test $stat -ne 0; then
455*5971e316Smrg     rm -f "$tmpdepfile1" "$tmpdepfile2"
456*5971e316Smrg     exit $stat
457*5971e316Smrg  fi
458*5971e316Smrg
459*5971e316Smrg  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
460*5971e316Smrg  do
461*5971e316Smrg    test -f "$tmpdepfile" && break
462*5971e316Smrg  done
463*5971e316Smrg  if test -f "$tmpdepfile"; then
464*5971e316Smrg    sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile"
465*5971e316Smrg    # Add 'dependent.h:' lines.
466*5971e316Smrg    sed -ne '2,${
467*5971e316Smrg               s/^ *//
468*5971e316Smrg               s/ \\*$//
469*5971e316Smrg               s/$/:/
470*5971e316Smrg               p
471*5971e316Smrg             }' "$tmpdepfile" >> "$depfile"
472*5971e316Smrg  else
473*5971e316Smrg    make_dummy_depfile
474*5971e316Smrg  fi
475*5971e316Smrg  rm -f "$tmpdepfile" "$tmpdepfile2"
476*5971e316Smrg  ;;
477*5971e316Smrg
478*5971e316Smrgtru64)
479*5971e316Smrg  # The Tru64 compiler uses -MD to generate dependencies as a side
480*5971e316Smrg  # effect.  'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'.
481*5971e316Smrg  # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
482*5971e316Smrg  # dependencies in 'foo.d' instead, so we check for that too.
483*5971e316Smrg  # Subdirectories are respected.
484*5971e316Smrg  set_dir_from  "$object"
485*5971e316Smrg  set_base_from "$object"
486*5971e316Smrg
487*5971e316Smrg  if test "$libtool" = yes; then
488*5971e316Smrg    # Libtool generates 2 separate objects for the 2 libraries.  These
489*5971e316Smrg    # two compilations output dependencies in $dir.libs/$base.o.d and
490*5971e316Smrg    # in $dir$base.o.d.  We have to check for both files, because
491*5971e316Smrg    # one of the two compilations can be disabled.  We should prefer
492*5971e316Smrg    # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
493*5971e316Smrg    # automatically cleaned when .libs/ is deleted, while ignoring
494*5971e316Smrg    # the former would cause a distcleancheck panic.
495*5971e316Smrg    tmpdepfile1=$dir$base.o.d          # libtool 1.5
496*5971e316Smrg    tmpdepfile2=$dir.libs/$base.o.d    # Likewise.
497*5971e316Smrg    tmpdepfile3=$dir.libs/$base.d      # Compaq CCC V6.2-504
498*5971e316Smrg    "$@" -Wc,-MD
499*5971e316Smrg  else
500*5971e316Smrg    tmpdepfile1=$dir$base.d
501*5971e316Smrg    tmpdepfile2=$dir$base.d
502*5971e316Smrg    tmpdepfile3=$dir$base.d
503*5971e316Smrg    "$@" -MD
504*5971e316Smrg  fi
505*5971e316Smrg
506*5971e316Smrg  stat=$?
507*5971e316Smrg  if test $stat -ne 0; then
508*5971e316Smrg    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
509*5971e316Smrg    exit $stat
510*5971e316Smrg  fi
511*5971e316Smrg
512*5971e316Smrg  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
513*5971e316Smrg  do
514*5971e316Smrg    test -f "$tmpdepfile" && break
515*5971e316Smrg  done
516*5971e316Smrg  # Same post-processing that is required for AIX mode.
517*5971e316Smrg  aix_post_process_depfile
518*5971e316Smrg  ;;
519*5971e316Smrg
520*5971e316Smrgmsvc7)
521*5971e316Smrg  if test "$libtool" = yes; then
522*5971e316Smrg    showIncludes=-Wc,-showIncludes
523*5971e316Smrg  else
524*5971e316Smrg    showIncludes=-showIncludes
525*5971e316Smrg  fi
526*5971e316Smrg  "$@" $showIncludes > "$tmpdepfile"
527*5971e316Smrg  stat=$?
528*5971e316Smrg  grep -v '^Note: including file: ' "$tmpdepfile"
529*5971e316Smrg  if test $stat -ne 0; then
530*5971e316Smrg    rm -f "$tmpdepfile"
531*5971e316Smrg    exit $stat
532*5971e316Smrg  fi
533*5971e316Smrg  rm -f "$depfile"
534*5971e316Smrg  echo "$object : \\" > "$depfile"
535*5971e316Smrg  # The first sed program below extracts the file names and escapes
536*5971e316Smrg  # backslashes for cygpath.  The second sed program outputs the file
537*5971e316Smrg  # name when reading, but also accumulates all include files in the
538*5971e316Smrg  # hold buffer in order to output them again at the end.  This only
539*5971e316Smrg  # works with sed implementations that can handle large buffers.
540*5971e316Smrg  sed < "$tmpdepfile" -n '
541*5971e316Smrg/^Note: including file:  *\(.*\)/ {
542*5971e316Smrg  s//\1/
543*5971e316Smrg  s/\\/\\\\/g
544*5971e316Smrg  p
545*5971e316Smrg}' | $cygpath_u | sort -u | sed -n '
546*5971e316Smrgs/ /\\ /g
547*5971e316Smrgs/\(.*\)/'"$tab"'\1 \\/p
548*5971e316Smrgs/.\(.*\) \\/\1:/
549*5971e316SmrgH
550*5971e316Smrg$ {
551*5971e316Smrg  s/.*/'"$tab"'/
552*5971e316Smrg  G
553*5971e316Smrg  p
554*5971e316Smrg}' >> "$depfile"
555*5971e316Smrg  echo >> "$depfile" # make sure the fragment doesn't end with a backslash
556*5971e316Smrg  rm -f "$tmpdepfile"
557*5971e316Smrg  ;;
558*5971e316Smrg
559*5971e316Smrgmsvc7msys)
560*5971e316Smrg  # This case exists only to let depend.m4 do its work.  It works by
561*5971e316Smrg  # looking at the text of this script.  This case will never be run,
562*5971e316Smrg  # since it is checked for above.
563*5971e316Smrg  exit 1
564*5971e316Smrg  ;;
565*5971e316Smrg
566*5971e316Smrg#nosideeffect)
567*5971e316Smrg  # This comment above is used by automake to tell side-effect
568*5971e316Smrg  # dependency tracking mechanisms from slower ones.
569*5971e316Smrg
570*5971e316Smrgdashmstdout)
571*5971e316Smrg  # Important note: in order to support this mode, a compiler *must*
572*5971e316Smrg  # always write the preprocessed file to stdout, regardless of -o.
573*5971e316Smrg  "$@" || exit $?
574*5971e316Smrg
575*5971e316Smrg  # Remove the call to Libtool.
576*5971e316Smrg  if test "$libtool" = yes; then
577*5971e316Smrg    while test "X$1" != 'X--mode=compile'; do
578*5971e316Smrg      shift
579*5971e316Smrg    done
580*5971e316Smrg    shift
581*5971e316Smrg  fi
582*5971e316Smrg
583*5971e316Smrg  # Remove '-o $object'.
584*5971e316Smrg  IFS=" "
585*5971e316Smrg  for arg
586*5971e316Smrg  do
587*5971e316Smrg    case $arg in
588*5971e316Smrg    -o)
589*5971e316Smrg      shift
590*5971e316Smrg      ;;
591*5971e316Smrg    $object)
592*5971e316Smrg      shift
593*5971e316Smrg      ;;
594*5971e316Smrg    *)
595*5971e316Smrg      set fnord "$@" "$arg"
596*5971e316Smrg      shift # fnord
597*5971e316Smrg      shift # $arg
598*5971e316Smrg      ;;
599*5971e316Smrg    esac
600*5971e316Smrg  done
601*5971e316Smrg
602*5971e316Smrg  test -z "$dashmflag" && dashmflag=-M
603*5971e316Smrg  # Require at least two characters before searching for ':'
604*5971e316Smrg  # in the target name.  This is to cope with DOS-style filenames:
605*5971e316Smrg  # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise.
606*5971e316Smrg  "$@" $dashmflag |
607*5971e316Smrg    sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile"
608*5971e316Smrg  rm -f "$depfile"
609*5971e316Smrg  cat < "$tmpdepfile" > "$depfile"
610*5971e316Smrg  # Some versions of the HPUX 10.20 sed can't process this sed invocation
611*5971e316Smrg  # correctly.  Breaking it into two sed invocations is a workaround.
612*5971e316Smrg  tr ' ' "$nl" < "$tmpdepfile" \
613*5971e316Smrg    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
614*5971e316Smrg    | sed -e 's/$/ :/' >> "$depfile"
615*5971e316Smrg  rm -f "$tmpdepfile"
616*5971e316Smrg  ;;
617*5971e316Smrg
618*5971e316SmrgdashXmstdout)
619*5971e316Smrg  # This case only exists to satisfy depend.m4.  It is never actually
620*5971e316Smrg  # run, as this mode is specially recognized in the preamble.
621*5971e316Smrg  exit 1
622*5971e316Smrg  ;;
623*5971e316Smrg
624*5971e316Smrgmakedepend)
625*5971e316Smrg  "$@" || exit $?
626*5971e316Smrg  # Remove any Libtool call
627*5971e316Smrg  if test "$libtool" = yes; then
628*5971e316Smrg    while test "X$1" != 'X--mode=compile'; do
629*5971e316Smrg      shift
630*5971e316Smrg    done
631*5971e316Smrg    shift
632*5971e316Smrg  fi
633*5971e316Smrg  # X makedepend
634*5971e316Smrg  shift
635*5971e316Smrg  cleared=no eat=no
636*5971e316Smrg  for arg
637*5971e316Smrg  do
638*5971e316Smrg    case $cleared in
639*5971e316Smrg    no)
640*5971e316Smrg      set ""; shift
641*5971e316Smrg      cleared=yes ;;
642*5971e316Smrg    esac
643*5971e316Smrg    if test $eat = yes; then
644*5971e316Smrg      eat=no
645*5971e316Smrg      continue
646*5971e316Smrg    fi
647*5971e316Smrg    case "$arg" in
648*5971e316Smrg    -D*|-I*)
649*5971e316Smrg      set fnord "$@" "$arg"; shift ;;
650*5971e316Smrg    # Strip any option that makedepend may not understand.  Remove
651*5971e316Smrg    # the object too, otherwise makedepend will parse it as a source file.
652*5971e316Smrg    -arch)
653*5971e316Smrg      eat=yes ;;
654*5971e316Smrg    -*|$object)
655*5971e316Smrg      ;;
656*5971e316Smrg    *)
657*5971e316Smrg      set fnord "$@" "$arg"; shift ;;
658*5971e316Smrg    esac
659*5971e316Smrg  done
660*5971e316Smrg  obj_suffix=`echo "$object" | sed 's/^.*\././'`
661*5971e316Smrg  touch "$tmpdepfile"
662*5971e316Smrg  ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
663*5971e316Smrg  rm -f "$depfile"
664*5971e316Smrg  # makedepend may prepend the VPATH from the source file name to the object.
665*5971e316Smrg  # No need to regex-escape $object, excess matching of '.' is harmless.
666*5971e316Smrg  sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile"
667*5971e316Smrg  # Some versions of the HPUX 10.20 sed can't process the last invocation
668*5971e316Smrg  # correctly.  Breaking it into two sed invocations is a workaround.
669*5971e316Smrg  sed '1,2d' "$tmpdepfile" \
670*5971e316Smrg    | tr ' ' "$nl" \
671*5971e316Smrg    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
672*5971e316Smrg    | sed -e 's/$/ :/' >> "$depfile"
673*5971e316Smrg  rm -f "$tmpdepfile" "$tmpdepfile".bak
674*5971e316Smrg  ;;
675*5971e316Smrg
676*5971e316Smrgcpp)
677*5971e316Smrg  # Important note: in order to support this mode, a compiler *must*
678*5971e316Smrg  # always write the preprocessed file to stdout.
679*5971e316Smrg  "$@" || exit $?
680*5971e316Smrg
681*5971e316Smrg  # Remove the call to Libtool.
682*5971e316Smrg  if test "$libtool" = yes; then
683*5971e316Smrg    while test "X$1" != 'X--mode=compile'; do
684*5971e316Smrg      shift
685*5971e316Smrg    done
686*5971e316Smrg    shift
687*5971e316Smrg  fi
688*5971e316Smrg
689*5971e316Smrg  # Remove '-o $object'.
690*5971e316Smrg  IFS=" "
691*5971e316Smrg  for arg
692*5971e316Smrg  do
693*5971e316Smrg    case $arg in
694*5971e316Smrg    -o)
695*5971e316Smrg      shift
696*5971e316Smrg      ;;
697*5971e316Smrg    $object)
698*5971e316Smrg      shift
699*5971e316Smrg      ;;
700*5971e316Smrg    *)
701*5971e316Smrg      set fnord "$@" "$arg"
702*5971e316Smrg      shift # fnord
703*5971e316Smrg      shift # $arg
704*5971e316Smrg      ;;
705*5971e316Smrg    esac
706*5971e316Smrg  done
707*5971e316Smrg
708*5971e316Smrg  "$@" -E \
709*5971e316Smrg    | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
710*5971e316Smrg             -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
711*5971e316Smrg    | sed '$ s: \\$::' > "$tmpdepfile"
712*5971e316Smrg  rm -f "$depfile"
713*5971e316Smrg  echo "$object : \\" > "$depfile"
714*5971e316Smrg  cat < "$tmpdepfile" >> "$depfile"
715*5971e316Smrg  sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
716*5971e316Smrg  rm -f "$tmpdepfile"
717*5971e316Smrg  ;;
718*5971e316Smrg
719*5971e316Smrgmsvisualcpp)
720*5971e316Smrg  # Important note: in order to support this mode, a compiler *must*
721*5971e316Smrg  # always write the preprocessed file to stdout.
722*5971e316Smrg  "$@" || exit $?
723*5971e316Smrg
724*5971e316Smrg  # Remove the call to Libtool.
725*5971e316Smrg  if test "$libtool" = yes; then
726*5971e316Smrg    while test "X$1" != 'X--mode=compile'; do
727*5971e316Smrg      shift
728*5971e316Smrg    done
729*5971e316Smrg    shift
730*5971e316Smrg  fi
731*5971e316Smrg
732*5971e316Smrg  IFS=" "
733*5971e316Smrg  for arg
734*5971e316Smrg  do
735*5971e316Smrg    case "$arg" in
736*5971e316Smrg    -o)
737*5971e316Smrg      shift
738*5971e316Smrg      ;;
739*5971e316Smrg    $object)
740*5971e316Smrg      shift
741*5971e316Smrg      ;;
742*5971e316Smrg    "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
743*5971e316Smrg        set fnord "$@"
744*5971e316Smrg        shift
745*5971e316Smrg        shift
746*5971e316Smrg        ;;
747*5971e316Smrg    *)
748*5971e316Smrg        set fnord "$@" "$arg"
749*5971e316Smrg        shift
750*5971e316Smrg        shift
751*5971e316Smrg        ;;
752*5971e316Smrg    esac
753*5971e316Smrg  done
754*5971e316Smrg  "$@" -E 2>/dev/null |
755*5971e316Smrg  sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
756*5971e316Smrg  rm -f "$depfile"
757*5971e316Smrg  echo "$object : \\" > "$depfile"
758*5971e316Smrg  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile"
759*5971e316Smrg  echo "$tab" >> "$depfile"
760*5971e316Smrg  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
761*5971e316Smrg  rm -f "$tmpdepfile"
762*5971e316Smrg  ;;
763*5971e316Smrg
764*5971e316Smrgmsvcmsys)
765*5971e316Smrg  # This case exists only to let depend.m4 do its work.  It works by
766*5971e316Smrg  # looking at the text of this script.  This case will never be run,
767*5971e316Smrg  # since it is checked for above.
768*5971e316Smrg  exit 1
769*5971e316Smrg  ;;
770*5971e316Smrg
771*5971e316Smrgnone)
772*5971e316Smrg  exec "$@"
773*5971e316Smrg  ;;
774*5971e316Smrg
775*5971e316Smrg*)
776*5971e316Smrg  echo "Unknown depmode $depmode" 1>&2
777*5971e316Smrg  exit 1
778*5971e316Smrg  ;;
779*5971e316Smrgesac
780*5971e316Smrg
781*5971e316Smrgexit 0
782*5971e316Smrg
783*5971e316Smrg# Local Variables:
784*5971e316Smrg# mode: shell-script
785*5971e316Smrg# sh-indentation: 2
786*5971e316Smrg# eval: (add-hook 'before-save-hook 'time-stamp)
787*5971e316Smrg# time-stamp-start: "scriptversion="
788*5971e316Smrg# time-stamp-format: "%:y-%02m-%02d.%02H"
789*5971e316Smrg# time-stamp-time-zone: "UTC0"
790*5971e316Smrg# time-stamp-end: "; # UTC"
791*5971e316Smrg# End:
792