Blame depcomp

Packit 4ff8ab
#! /bin/sh
Packit 4ff8ab
# depcomp - compile a program generating dependencies as side-effects
Packit 4ff8ab
Packit 4ff8ab
scriptversion=2013-05-30.07; # UTC
Packit 4ff8ab
Packit 4ff8ab
# Copyright (C) 1999-2014 Free Software Foundation, Inc.
Packit 4ff8ab
Packit 4ff8ab
# This program is free software; you can redistribute it and/or modify
Packit 4ff8ab
# it under the terms of the GNU General Public License as published by
Packit 4ff8ab
# the Free Software Foundation; either version 2, or (at your option)
Packit 4ff8ab
# any later version.
Packit 4ff8ab
Packit 4ff8ab
# This program is distributed in the hope that it will be useful,
Packit 4ff8ab
# but WITHOUT ANY WARRANTY; without even the implied warranty of
Packit 4ff8ab
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Packit 4ff8ab
# GNU General Public License for more details.
Packit 4ff8ab
Packit 4ff8ab
# You should have received a copy of the GNU General Public License
Packit 4ff8ab
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
Packit 4ff8ab
Packit 4ff8ab
# As a special exception to the GNU General Public License, if you
Packit 4ff8ab
# distribute this file as part of a program that contains a
Packit 4ff8ab
# configuration script generated by Autoconf, you may include it under
Packit 4ff8ab
# the same distribution terms that you use for the rest of that program.
Packit 4ff8ab
Packit 4ff8ab
# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
Packit 4ff8ab
Packit 4ff8ab
case $1 in
Packit 4ff8ab
  '')
Packit 4ff8ab
    echo "$0: No command.  Try '$0 --help' for more information." 1>&2
Packit 4ff8ab
    exit 1;
Packit 4ff8ab
    ;;
Packit 4ff8ab
  -h | --h*)
Packit 4ff8ab
    cat <<\EOF
Packit 4ff8ab
Usage: depcomp [--help] [--version] PROGRAM [ARGS]
Packit 4ff8ab
Packit 4ff8ab
Run PROGRAMS ARGS to compile a file, generating dependencies
Packit 4ff8ab
as side-effects.
Packit 4ff8ab
Packit 4ff8ab
Environment variables:
Packit 4ff8ab
  depmode     Dependency tracking mode.
Packit 4ff8ab
  source      Source file read by 'PROGRAMS ARGS'.
Packit 4ff8ab
  object      Object file output by 'PROGRAMS ARGS'.
Packit 4ff8ab
  DEPDIR      directory where to store dependencies.
Packit 4ff8ab
  depfile     Dependency file to output.
Packit 4ff8ab
  tmpdepfile  Temporary file to use when outputting dependencies.
Packit 4ff8ab
  libtool     Whether libtool is used (yes/no).
Packit 4ff8ab
Packit 4ff8ab
Report bugs to <bug-automake@gnu.org>.
Packit 4ff8ab
EOF
Packit 4ff8ab
    exit $?
Packit 4ff8ab
    ;;
Packit 4ff8ab
  -v | --v*)
Packit 4ff8ab
    echo "depcomp $scriptversion"
Packit 4ff8ab
    exit $?
Packit 4ff8ab
    ;;
Packit 4ff8ab
esac
Packit 4ff8ab
Packit 4ff8ab
# Get the directory component of the given path, and save it in the
Packit 4ff8ab
# global variables '$dir'.  Note that this directory component will
Packit 4ff8ab
# be either empty or ending with a '/' character.  This is deliberate.
Packit 4ff8ab
set_dir_from ()
Packit 4ff8ab
{
Packit 4ff8ab
  case $1 in
Packit 4ff8ab
    */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;;
Packit 4ff8ab
      *) dir=;;
Packit 4ff8ab
  esac
Packit 4ff8ab
}
Packit 4ff8ab
Packit 4ff8ab
# Get the suffix-stripped basename of the given path, and save it the
Packit 4ff8ab
# global variable '$base'.
Packit 4ff8ab
set_base_from ()
Packit 4ff8ab
{
Packit 4ff8ab
  base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'`
Packit 4ff8ab
}
Packit 4ff8ab
Packit 4ff8ab
# If no dependency file was actually created by the compiler invocation,
Packit 4ff8ab
# we still have to create a dummy depfile, to avoid errors with the
Packit 4ff8ab
# Makefile "include basename.Plo" scheme.
Packit 4ff8ab
make_dummy_depfile ()
Packit 4ff8ab
{
Packit 4ff8ab
  echo "#dummy" > "$depfile"
Packit 4ff8ab
}
Packit 4ff8ab
Packit 4ff8ab
# Factor out some common post-processing of the generated depfile.
Packit 4ff8ab
# Requires the auxiliary global variable '$tmpdepfile' to be set.
Packit 4ff8ab
aix_post_process_depfile ()
Packit 4ff8ab
{
Packit 4ff8ab
  # If the compiler actually managed to produce a dependency file,
Packit 4ff8ab
  # post-process it.
Packit 4ff8ab
  if test -f "$tmpdepfile"; then
Packit 4ff8ab
    # Each line is of the form 'foo.o: dependency.h'.
Packit 4ff8ab
    # Do two passes, one to just change these to
Packit 4ff8ab
    #   $object: dependency.h
Packit 4ff8ab
    # and one to simply output
Packit 4ff8ab
    #   dependency.h:
Packit 4ff8ab
    # which is needed to avoid the deleted-header problem.
Packit 4ff8ab
    { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile"
Packit 4ff8ab
      sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile"
Packit 4ff8ab
    } > "$depfile"
Packit 4ff8ab
    rm -f "$tmpdepfile"
Packit 4ff8ab
  else
Packit 4ff8ab
    make_dummy_depfile
Packit 4ff8ab
  fi
Packit 4ff8ab
}
Packit 4ff8ab
Packit 4ff8ab
# A tabulation character.
Packit 4ff8ab
tab='	'
Packit 4ff8ab
# A newline character.
Packit 4ff8ab
nl='
Packit 4ff8ab
'
Packit 4ff8ab
# Character ranges might be problematic outside the C locale.
Packit 4ff8ab
# These definitions help.
Packit 4ff8ab
upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ
Packit 4ff8ab
lower=abcdefghijklmnopqrstuvwxyz
Packit 4ff8ab
digits=0123456789
Packit 4ff8ab
alpha=${upper}${lower}
Packit 4ff8ab
Packit 4ff8ab
if test -z "$depmode" || test -z "$source" || test -z "$object"; then
Packit 4ff8ab
  echo "depcomp: Variables source, object and depmode must be set" 1>&2
Packit 4ff8ab
  exit 1
Packit 4ff8ab
fi
Packit 4ff8ab
Packit 4ff8ab
# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
Packit 4ff8ab
depfile=${depfile-`echo "$object" |
Packit 4ff8ab
  sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
Packit 4ff8ab
tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
Packit 4ff8ab
Packit 4ff8ab
rm -f "$tmpdepfile"
Packit 4ff8ab
Packit 4ff8ab
# Avoid interferences from the environment.
Packit 4ff8ab
gccflag= dashmflag=
Packit 4ff8ab
Packit 4ff8ab
# Some modes work just like other modes, but use different flags.  We
Packit 4ff8ab
# parameterize here, but still list the modes in the big case below,
Packit 4ff8ab
# to make depend.m4 easier to write.  Note that we *cannot* use a case
Packit 4ff8ab
# here, because this file can only contain one case statement.
Packit 4ff8ab
if test "$depmode" = hp; then
Packit 4ff8ab
  # HP compiler uses -M and no extra arg.
Packit 4ff8ab
  gccflag=-M
Packit 4ff8ab
  depmode=gcc
Packit 4ff8ab
fi
Packit 4ff8ab
Packit 4ff8ab
if test "$depmode" = dashXmstdout; then
Packit 4ff8ab
  # This is just like dashmstdout with a different argument.
Packit 4ff8ab
  dashmflag=-xM
Packit 4ff8ab
  depmode=dashmstdout
Packit 4ff8ab
fi
Packit 4ff8ab
Packit 4ff8ab
cygpath_u="cygpath -u -f -"
Packit 4ff8ab
if test "$depmode" = msvcmsys; then
Packit 4ff8ab
  # This is just like msvisualcpp but w/o cygpath translation.
Packit 4ff8ab
  # Just convert the backslash-escaped backslashes to single forward
Packit 4ff8ab
  # slashes to satisfy depend.m4
Packit 4ff8ab
  cygpath_u='sed s,\\\\,/,g'
Packit 4ff8ab
  depmode=msvisualcpp
Packit 4ff8ab
fi
Packit 4ff8ab
Packit 4ff8ab
if test "$depmode" = msvc7msys; then
Packit 4ff8ab
  # This is just like msvc7 but w/o cygpath translation.
Packit 4ff8ab
  # Just convert the backslash-escaped backslashes to single forward
Packit 4ff8ab
  # slashes to satisfy depend.m4
Packit 4ff8ab
  cygpath_u='sed s,\\\\,/,g'
Packit 4ff8ab
  depmode=msvc7
Packit 4ff8ab
fi
Packit 4ff8ab
Packit 4ff8ab
if test "$depmode" = xlc; then
Packit 4ff8ab
  # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information.
Packit 4ff8ab
  gccflag=-qmakedep=gcc,-MF
Packit 4ff8ab
  depmode=gcc
Packit 4ff8ab
fi
Packit 4ff8ab
Packit 4ff8ab
case "$depmode" in
Packit 4ff8ab
gcc3)
Packit 4ff8ab
## gcc 3 implements dependency tracking that does exactly what
Packit 4ff8ab
## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
Packit 4ff8ab
## it if -MD -MP comes after the -MF stuff.  Hmm.
Packit 4ff8ab
## Unfortunately, FreeBSD c89 acceptance of flags depends upon
Packit 4ff8ab
## the command line argument order; so add the flags where they
Packit 4ff8ab
## appear in depend2.am.  Note that the slowdown incurred here
Packit 4ff8ab
## affects only configure: in makefiles, %FASTDEP% shortcuts this.
Packit 4ff8ab
  for arg
Packit 4ff8ab
  do
Packit 4ff8ab
    case $arg in
Packit 4ff8ab
    -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
Packit 4ff8ab
    *)  set fnord "$@" "$arg" ;;
Packit 4ff8ab
    esac
Packit 4ff8ab
    shift # fnord
Packit 4ff8ab
    shift # $arg
Packit 4ff8ab
  done
Packit 4ff8ab
  "$@"
Packit 4ff8ab
  stat=$?
Packit 4ff8ab
  if test $stat -ne 0; then
Packit 4ff8ab
    rm -f "$tmpdepfile"
Packit 4ff8ab
    exit $stat
Packit 4ff8ab
  fi
Packit 4ff8ab
  mv "$tmpdepfile" "$depfile"
Packit 4ff8ab
  ;;
Packit 4ff8ab
Packit 4ff8ab
gcc)
Packit 4ff8ab
## Note that this doesn't just cater to obsosete pre-3.x GCC compilers.
Packit 4ff8ab
## but also to in-use compilers like IMB xlc/xlC and the HP C compiler.
Packit 4ff8ab
## (see the conditional assignment to $gccflag above).
Packit 4ff8ab
## There are various ways to get dependency output from gcc.  Here's
Packit 4ff8ab
## why we pick this rather obscure method:
Packit 4ff8ab
## - Don't want to use -MD because we'd like the dependencies to end
Packit 4ff8ab
##   up in a subdir.  Having to rename by hand is ugly.
Packit 4ff8ab
##   (We might end up doing this anyway to support other compilers.)
Packit 4ff8ab
## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
Packit 4ff8ab
##   -MM, not -M (despite what the docs say).  Also, it might not be
Packit 4ff8ab
##   supported by the other compilers which use the 'gcc' depmode.
Packit 4ff8ab
## - Using -M directly means running the compiler twice (even worse
Packit 4ff8ab
##   than renaming).
Packit 4ff8ab
  if test -z "$gccflag"; then
Packit 4ff8ab
    gccflag=-MD,
Packit 4ff8ab
  fi
Packit 4ff8ab
  "$@" -Wp,"$gccflag$tmpdepfile"
Packit 4ff8ab
  stat=$?
Packit 4ff8ab
  if test $stat -ne 0; then
Packit 4ff8ab
    rm -f "$tmpdepfile"
Packit 4ff8ab
    exit $stat
Packit 4ff8ab
  fi
Packit 4ff8ab
  rm -f "$depfile"
Packit 4ff8ab
  echo "$object : \\" > "$depfile"
Packit 4ff8ab
  # The second -e expression handles DOS-style file names with drive
Packit 4ff8ab
  # letters.
Packit 4ff8ab
  sed -e 's/^[^:]*: / /' \
Packit 4ff8ab
      -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
Packit 4ff8ab
## This next piece of magic avoids the "deleted header file" problem.
Packit 4ff8ab
## The problem is that when a header file which appears in a .P file
Packit 4ff8ab
## is deleted, the dependency causes make to die (because there is
Packit 4ff8ab
## typically no way to rebuild the header).  We avoid this by adding
Packit 4ff8ab
## dummy dependencies for each header file.  Too bad gcc doesn't do
Packit 4ff8ab
## this for us directly.
Packit 4ff8ab
## Some versions of gcc put a space before the ':'.  On the theory
Packit 4ff8ab
## that the space means something, we add a space to the output as
Packit 4ff8ab
## well.  hp depmode also adds that space, but also prefixes the VPATH
Packit 4ff8ab
## to the object.  Take care to not repeat it in the output.
Packit 4ff8ab
## Some versions of the HPUX 10.20 sed can't process this invocation
Packit 4ff8ab
## correctly.  Breaking it into two sed invocations is a workaround.
Packit 4ff8ab
  tr ' ' "$nl" < "$tmpdepfile" \
Packit 4ff8ab
    | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \
Packit 4ff8ab
    | sed -e 's/$/ :/' >> "$depfile"
Packit 4ff8ab
  rm -f "$tmpdepfile"
Packit 4ff8ab
  ;;
Packit 4ff8ab
Packit 4ff8ab
hp)
Packit 4ff8ab
  # This case exists only to let depend.m4 do its work.  It works by
Packit 4ff8ab
  # looking at the text of this script.  This case will never be run,
Packit 4ff8ab
  # since it is checked for above.
Packit 4ff8ab
  exit 1
Packit 4ff8ab
  ;;
Packit 4ff8ab
Packit 4ff8ab
sgi)
Packit 4ff8ab
  if test "$libtool" = yes; then
Packit 4ff8ab
    "$@" "-Wp,-MDupdate,$tmpdepfile"
Packit 4ff8ab
  else
Packit 4ff8ab
    "$@" -MDupdate "$tmpdepfile"
Packit 4ff8ab
  fi
Packit 4ff8ab
  stat=$?
Packit 4ff8ab
  if test $stat -ne 0; then
Packit 4ff8ab
    rm -f "$tmpdepfile"
Packit 4ff8ab
    exit $stat
Packit 4ff8ab
  fi
Packit 4ff8ab
  rm -f "$depfile"
Packit 4ff8ab
Packit 4ff8ab
  if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
Packit 4ff8ab
    echo "$object : \\" > "$depfile"
Packit 4ff8ab
    # Clip off the initial element (the dependent).  Don't try to be
Packit 4ff8ab
    # clever and replace this with sed code, as IRIX sed won't handle
Packit 4ff8ab
    # lines with more than a fixed number of characters (4096 in
Packit 4ff8ab
    # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
Packit 4ff8ab
    # the IRIX cc adds comments like '#:fec' to the end of the
Packit 4ff8ab
    # dependency line.
Packit 4ff8ab
    tr ' ' "$nl" < "$tmpdepfile" \
Packit 4ff8ab
      | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \
Packit 4ff8ab
      | tr "$nl" ' ' >> "$depfile"
Packit 4ff8ab
    echo >> "$depfile"
Packit 4ff8ab
    # The second pass generates a dummy entry for each header file.
Packit 4ff8ab
    tr ' ' "$nl" < "$tmpdepfile" \
Packit 4ff8ab
      | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
Packit 4ff8ab
      >> "$depfile"
Packit 4ff8ab
  else
Packit 4ff8ab
    make_dummy_depfile
Packit 4ff8ab
  fi
Packit 4ff8ab
  rm -f "$tmpdepfile"
Packit 4ff8ab
  ;;
Packit 4ff8ab
Packit 4ff8ab
xlc)
Packit 4ff8ab
  # This case exists only to let depend.m4 do its work.  It works by
Packit 4ff8ab
  # looking at the text of this script.  This case will never be run,
Packit 4ff8ab
  # since it is checked for above.
Packit 4ff8ab
  exit 1
Packit 4ff8ab
  ;;
Packit 4ff8ab
Packit 4ff8ab
aix)
Packit 4ff8ab
  # The C for AIX Compiler uses -M and outputs the dependencies
Packit 4ff8ab
  # in a .u file.  In older versions, this file always lives in the
Packit 4ff8ab
  # current directory.  Also, the AIX compiler puts '$object:' at the
Packit 4ff8ab
  # start of each line; $object doesn't have directory information.
Packit 4ff8ab
  # Version 6 uses the directory in both cases.
Packit 4ff8ab
  set_dir_from "$object"
Packit 4ff8ab
  set_base_from "$object"
Packit 4ff8ab
  if test "$libtool" = yes; then
Packit 4ff8ab
    tmpdepfile1=$dir$base.u
Packit 4ff8ab
    tmpdepfile2=$base.u
Packit 4ff8ab
    tmpdepfile3=$dir.libs/$base.u
Packit 4ff8ab
    "$@" -Wc,-M
Packit 4ff8ab
  else
Packit 4ff8ab
    tmpdepfile1=$dir$base.u
Packit 4ff8ab
    tmpdepfile2=$dir$base.u
Packit 4ff8ab
    tmpdepfile3=$dir$base.u
Packit 4ff8ab
    "$@" -M
Packit 4ff8ab
  fi
Packit 4ff8ab
  stat=$?
Packit 4ff8ab
  if test $stat -ne 0; then
Packit 4ff8ab
    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
Packit 4ff8ab
    exit $stat
Packit 4ff8ab
  fi
Packit 4ff8ab
Packit 4ff8ab
  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
Packit 4ff8ab
  do
Packit 4ff8ab
    test -f "$tmpdepfile" && break
Packit 4ff8ab
  done
Packit 4ff8ab
  aix_post_process_depfile
Packit 4ff8ab
  ;;
Packit 4ff8ab
Packit 4ff8ab
tcc)
Packit 4ff8ab
  # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26
Packit 4ff8ab
  # FIXME: That version still under development at the moment of writing.
Packit 4ff8ab
  #        Make that this statement remains true also for stable, released
Packit 4ff8ab
  #        versions.
Packit 4ff8ab
  # It will wrap lines (doesn't matter whether long or short) with a
Packit 4ff8ab
  # trailing '\', as in:
Packit 4ff8ab
  #
Packit 4ff8ab
  #   foo.o : \
Packit 4ff8ab
  #    foo.c \
Packit 4ff8ab
  #    foo.h \
Packit 4ff8ab
  #
Packit 4ff8ab
  # It will put a trailing '\' even on the last line, and will use leading
Packit 4ff8ab
  # spaces rather than leading tabs (at least since its commit 0394caf7
Packit 4ff8ab
  # "Emit spaces for -MD").
Packit 4ff8ab
  "$@" -MD -MF "$tmpdepfile"
Packit 4ff8ab
  stat=$?
Packit 4ff8ab
  if test $stat -ne 0; then
Packit 4ff8ab
    rm -f "$tmpdepfile"
Packit 4ff8ab
    exit $stat
Packit 4ff8ab
  fi
Packit 4ff8ab
  rm -f "$depfile"
Packit 4ff8ab
  # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'.
Packit 4ff8ab
  # We have to change lines of the first kind to '$object: \'.
Packit 4ff8ab
  sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile"
Packit 4ff8ab
  # And for each line of the second kind, we have to emit a 'dep.h:'
Packit 4ff8ab
  # dummy dependency, to avoid the deleted-header problem.
Packit 4ff8ab
  sed -n -e 's|^  *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile"
Packit 4ff8ab
  rm -f "$tmpdepfile"
Packit 4ff8ab
  ;;
Packit 4ff8ab
Packit 4ff8ab
## The order of this option in the case statement is important, since the
Packit 4ff8ab
## shell code in configure will try each of these formats in the order
Packit 4ff8ab
## listed in this file.  A plain '-MD' option would be understood by many
Packit 4ff8ab
## compilers, so we must ensure this comes after the gcc and icc options.
Packit 4ff8ab
pgcc)
Packit 4ff8ab
  # Portland's C compiler understands '-MD'.
Packit 4ff8ab
  # Will always output deps to 'file.d' where file is the root name of the
Packit 4ff8ab
  # source file under compilation, even if file resides in a subdirectory.
Packit 4ff8ab
  # The object file name does not affect the name of the '.d' file.
Packit 4ff8ab
  # pgcc 10.2 will output
Packit 4ff8ab
  #    foo.o: sub/foo.c sub/foo.h
Packit 4ff8ab
  # and will wrap long lines using '\' :
Packit 4ff8ab
  #    foo.o: sub/foo.c ... \
Packit 4ff8ab
  #     sub/foo.h ... \
Packit 4ff8ab
  #     ...
Packit 4ff8ab
  set_dir_from "$object"
Packit 4ff8ab
  # Use the source, not the object, to determine the base name, since
Packit 4ff8ab
  # that's sadly what pgcc will do too.
Packit 4ff8ab
  set_base_from "$source"
Packit 4ff8ab
  tmpdepfile=$base.d
Packit 4ff8ab
Packit 4ff8ab
  # For projects that build the same source file twice into different object
Packit 4ff8ab
  # files, the pgcc approach of using the *source* file root name can cause
Packit 4ff8ab
  # problems in parallel builds.  Use a locking strategy to avoid stomping on
Packit 4ff8ab
  # the same $tmpdepfile.
Packit 4ff8ab
  lockdir=$base.d-lock
Packit 4ff8ab
  trap "
Packit 4ff8ab
    echo '$0: caught signal, cleaning up...' >&2
Packit 4ff8ab
    rmdir '$lockdir'
Packit 4ff8ab
    exit 1
Packit 4ff8ab
  " 1 2 13 15
Packit 4ff8ab
  numtries=100
Packit 4ff8ab
  i=$numtries
Packit 4ff8ab
  while test $i -gt 0; do
Packit 4ff8ab
    # mkdir is a portable test-and-set.
Packit 4ff8ab
    if mkdir "$lockdir" 2>/dev/null; then
Packit 4ff8ab
      # This process acquired the lock.
Packit 4ff8ab
      "$@" -MD
Packit 4ff8ab
      stat=$?
Packit 4ff8ab
      # Release the lock.
Packit 4ff8ab
      rmdir "$lockdir"
Packit 4ff8ab
      break
Packit 4ff8ab
    else
Packit 4ff8ab
      # If the lock is being held by a different process, wait
Packit 4ff8ab
      # until the winning process is done or we timeout.
Packit 4ff8ab
      while test -d "$lockdir" && test $i -gt 0; do
Packit 4ff8ab
        sleep 1
Packit 4ff8ab
        i=`expr $i - 1`
Packit 4ff8ab
      done
Packit 4ff8ab
    fi
Packit 4ff8ab
    i=`expr $i - 1`
Packit 4ff8ab
  done
Packit 4ff8ab
  trap - 1 2 13 15
Packit 4ff8ab
  if test $i -le 0; then
Packit 4ff8ab
    echo "$0: failed to acquire lock after $numtries attempts" >&2
Packit 4ff8ab
    echo "$0: check lockdir '$lockdir'" >&2
Packit 4ff8ab
    exit 1
Packit 4ff8ab
  fi
Packit 4ff8ab
Packit 4ff8ab
  if test $stat -ne 0; then
Packit 4ff8ab
    rm -f "$tmpdepfile"
Packit 4ff8ab
    exit $stat
Packit 4ff8ab
  fi
Packit 4ff8ab
  rm -f "$depfile"
Packit 4ff8ab
  # Each line is of the form `foo.o: dependent.h',
Packit 4ff8ab
  # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
Packit 4ff8ab
  # Do two passes, one to just change these to
Packit 4ff8ab
  # `$object: dependent.h' and one to simply `dependent.h:'.
Packit 4ff8ab
  sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
Packit 4ff8ab
  # Some versions of the HPUX 10.20 sed can't process this invocation
Packit 4ff8ab
  # correctly.  Breaking it into two sed invocations is a workaround.
Packit 4ff8ab
  sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \
Packit 4ff8ab
    | sed -e 's/$/ :/' >> "$depfile"
Packit 4ff8ab
  rm -f "$tmpdepfile"
Packit 4ff8ab
  ;;
Packit 4ff8ab
Packit 4ff8ab
hp2)
Packit 4ff8ab
  # The "hp" stanza above does not work with aCC (C++) and HP's ia64
Packit 4ff8ab
  # compilers, which have integrated preprocessors.  The correct option
Packit 4ff8ab
  # to use with these is +Maked; it writes dependencies to a file named
Packit 4ff8ab
  # 'foo.d', which lands next to the object file, wherever that
Packit 4ff8ab
  # happens to be.
Packit 4ff8ab
  # Much of this is similar to the tru64 case; see comments there.
Packit 4ff8ab
  set_dir_from  "$object"
Packit 4ff8ab
  set_base_from "$object"
Packit 4ff8ab
  if test "$libtool" = yes; then
Packit 4ff8ab
    tmpdepfile1=$dir$base.d
Packit 4ff8ab
    tmpdepfile2=$dir.libs/$base.d
Packit 4ff8ab
    "$@" -Wc,+Maked
Packit 4ff8ab
  else
Packit 4ff8ab
    tmpdepfile1=$dir$base.d
Packit 4ff8ab
    tmpdepfile2=$dir$base.d
Packit 4ff8ab
    "$@" +Maked
Packit 4ff8ab
  fi
Packit 4ff8ab
  stat=$?
Packit 4ff8ab
  if test $stat -ne 0; then
Packit 4ff8ab
     rm -f "$tmpdepfile1" "$tmpdepfile2"
Packit 4ff8ab
     exit $stat
Packit 4ff8ab
  fi
Packit 4ff8ab
Packit 4ff8ab
  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
Packit 4ff8ab
  do
Packit 4ff8ab
    test -f "$tmpdepfile" && break
Packit 4ff8ab
  done
Packit 4ff8ab
  if test -f "$tmpdepfile"; then
Packit 4ff8ab
    sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile"
Packit 4ff8ab
    # Add 'dependent.h:' lines.
Packit 4ff8ab
    sed -ne '2,${
Packit 4ff8ab
               s/^ *//
Packit 4ff8ab
               s/ \\*$//
Packit 4ff8ab
               s/$/:/
Packit 4ff8ab
               p
Packit 4ff8ab
             }' "$tmpdepfile" >> "$depfile"
Packit 4ff8ab
  else
Packit 4ff8ab
    make_dummy_depfile
Packit 4ff8ab
  fi
Packit 4ff8ab
  rm -f "$tmpdepfile" "$tmpdepfile2"
Packit 4ff8ab
  ;;
Packit 4ff8ab
Packit 4ff8ab
tru64)
Packit 4ff8ab
  # The Tru64 compiler uses -MD to generate dependencies as a side
Packit 4ff8ab
  # effect.  'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'.
Packit 4ff8ab
  # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
Packit 4ff8ab
  # dependencies in 'foo.d' instead, so we check for that too.
Packit 4ff8ab
  # Subdirectories are respected.
Packit 4ff8ab
  set_dir_from  "$object"
Packit 4ff8ab
  set_base_from "$object"
Packit 4ff8ab
Packit 4ff8ab
  if test "$libtool" = yes; then
Packit 4ff8ab
    # Libtool generates 2 separate objects for the 2 libraries.  These
Packit 4ff8ab
    # two compilations output dependencies in $dir.libs/$base.o.d and
Packit 4ff8ab
    # in $dir$base.o.d.  We have to check for both files, because
Packit 4ff8ab
    # one of the two compilations can be disabled.  We should prefer
Packit 4ff8ab
    # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
Packit 4ff8ab
    # automatically cleaned when .libs/ is deleted, while ignoring
Packit 4ff8ab
    # the former would cause a distcleancheck panic.
Packit 4ff8ab
    tmpdepfile1=$dir$base.o.d          # libtool 1.5
Packit 4ff8ab
    tmpdepfile2=$dir.libs/$base.o.d    # Likewise.
Packit 4ff8ab
    tmpdepfile3=$dir.libs/$base.d      # Compaq CCC V6.2-504
Packit 4ff8ab
    "$@" -Wc,-MD
Packit 4ff8ab
  else
Packit 4ff8ab
    tmpdepfile1=$dir$base.d
Packit 4ff8ab
    tmpdepfile2=$dir$base.d
Packit 4ff8ab
    tmpdepfile3=$dir$base.d
Packit 4ff8ab
    "$@" -MD
Packit 4ff8ab
  fi
Packit 4ff8ab
Packit 4ff8ab
  stat=$?
Packit 4ff8ab
  if test $stat -ne 0; then
Packit 4ff8ab
    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
Packit 4ff8ab
    exit $stat
Packit 4ff8ab
  fi
Packit 4ff8ab
Packit 4ff8ab
  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
Packit 4ff8ab
  do
Packit 4ff8ab
    test -f "$tmpdepfile" && break
Packit 4ff8ab
  done
Packit 4ff8ab
  # Same post-processing that is required for AIX mode.
Packit 4ff8ab
  aix_post_process_depfile
Packit 4ff8ab
  ;;
Packit 4ff8ab
Packit 4ff8ab
msvc7)
Packit 4ff8ab
  if test "$libtool" = yes; then
Packit 4ff8ab
    showIncludes=-Wc,-showIncludes
Packit 4ff8ab
  else
Packit 4ff8ab
    showIncludes=-showIncludes
Packit 4ff8ab
  fi
Packit 4ff8ab
  "$@" $showIncludes > "$tmpdepfile"
Packit 4ff8ab
  stat=$?
Packit 4ff8ab
  grep -v '^Note: including file: ' "$tmpdepfile"
Packit 4ff8ab
  if test $stat -ne 0; then
Packit 4ff8ab
    rm -f "$tmpdepfile"
Packit 4ff8ab
    exit $stat
Packit 4ff8ab
  fi
Packit 4ff8ab
  rm -f "$depfile"
Packit 4ff8ab
  echo "$object : \\" > "$depfile"
Packit 4ff8ab
  # The first sed program below extracts the file names and escapes
Packit 4ff8ab
  # backslashes for cygpath.  The second sed program outputs the file
Packit 4ff8ab
  # name when reading, but also accumulates all include files in the
Packit 4ff8ab
  # hold buffer in order to output them again at the end.  This only
Packit 4ff8ab
  # works with sed implementations that can handle large buffers.
Packit 4ff8ab
  sed < "$tmpdepfile" -n '
Packit 4ff8ab
/^Note: including file:  *\(.*\)/ {
Packit 4ff8ab
  s//\1/
Packit 4ff8ab
  s/\\/\\\\/g
Packit 4ff8ab
  p
Packit 4ff8ab
}' | $cygpath_u | sort -u | sed -n '
Packit 4ff8ab
s/ /\\ /g
Packit 4ff8ab
s/\(.*\)/'"$tab"'\1 \\/p
Packit 4ff8ab
s/.\(.*\) \\/\1:/
Packit 4ff8ab
H
Packit 4ff8ab
$ {
Packit 4ff8ab
  s/.*/'"$tab"'/
Packit 4ff8ab
  G
Packit 4ff8ab
  p
Packit 4ff8ab
}' >> "$depfile"
Packit 4ff8ab
  echo >> "$depfile" # make sure the fragment doesn't end with a backslash
Packit 4ff8ab
  rm -f "$tmpdepfile"
Packit 4ff8ab
  ;;
Packit 4ff8ab
Packit 4ff8ab
msvc7msys)
Packit 4ff8ab
  # This case exists only to let depend.m4 do its work.  It works by
Packit 4ff8ab
  # looking at the text of this script.  This case will never be run,
Packit 4ff8ab
  # since it is checked for above.
Packit 4ff8ab
  exit 1
Packit 4ff8ab
  ;;
Packit 4ff8ab
Packit 4ff8ab
#nosideeffect)
Packit 4ff8ab
  # This comment above is used by automake to tell side-effect
Packit 4ff8ab
  # dependency tracking mechanisms from slower ones.
Packit 4ff8ab
Packit 4ff8ab
dashmstdout)
Packit 4ff8ab
  # Important note: in order to support this mode, a compiler *must*
Packit 4ff8ab
  # always write the preprocessed file to stdout, regardless of -o.
Packit 4ff8ab
  "$@" || exit $?
Packit 4ff8ab
Packit 4ff8ab
  # Remove the call to Libtool.
Packit 4ff8ab
  if test "$libtool" = yes; then
Packit 4ff8ab
    while test "X$1" != 'X--mode=compile'; do
Packit 4ff8ab
      shift
Packit 4ff8ab
    done
Packit 4ff8ab
    shift
Packit 4ff8ab
  fi
Packit 4ff8ab
Packit 4ff8ab
  # Remove '-o $object'.
Packit 4ff8ab
  IFS=" "
Packit 4ff8ab
  for arg
Packit 4ff8ab
  do
Packit 4ff8ab
    case $arg in
Packit 4ff8ab
    -o)
Packit 4ff8ab
      shift
Packit 4ff8ab
      ;;
Packit 4ff8ab
    $object)
Packit 4ff8ab
      shift
Packit 4ff8ab
      ;;
Packit 4ff8ab
    *)
Packit 4ff8ab
      set fnord "$@" "$arg"
Packit 4ff8ab
      shift # fnord
Packit 4ff8ab
      shift # $arg
Packit 4ff8ab
      ;;
Packit 4ff8ab
    esac
Packit 4ff8ab
  done
Packit 4ff8ab
Packit 4ff8ab
  test -z "$dashmflag" && dashmflag=-M
Packit 4ff8ab
  # Require at least two characters before searching for ':'
Packit 4ff8ab
  # in the target name.  This is to cope with DOS-style filenames:
Packit 4ff8ab
  # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise.
Packit 4ff8ab
  "$@" $dashmflag |
Packit 4ff8ab
    sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile"
Packit 4ff8ab
  rm -f "$depfile"
Packit 4ff8ab
  cat < "$tmpdepfile" > "$depfile"
Packit 4ff8ab
  # Some versions of the HPUX 10.20 sed can't process this sed invocation
Packit 4ff8ab
  # correctly.  Breaking it into two sed invocations is a workaround.
Packit 4ff8ab
  tr ' ' "$nl" < "$tmpdepfile" \
Packit 4ff8ab
    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
Packit 4ff8ab
    | sed -e 's/$/ :/' >> "$depfile"
Packit 4ff8ab
  rm -f "$tmpdepfile"
Packit 4ff8ab
  ;;
Packit 4ff8ab
Packit 4ff8ab
dashXmstdout)
Packit 4ff8ab
  # This case only exists to satisfy depend.m4.  It is never actually
Packit 4ff8ab
  # run, as this mode is specially recognized in the preamble.
Packit 4ff8ab
  exit 1
Packit 4ff8ab
  ;;
Packit 4ff8ab
Packit 4ff8ab
makedepend)
Packit 4ff8ab
  "$@" || exit $?
Packit 4ff8ab
  # Remove any Libtool call
Packit 4ff8ab
  if test "$libtool" = yes; then
Packit 4ff8ab
    while test "X$1" != 'X--mode=compile'; do
Packit 4ff8ab
      shift
Packit 4ff8ab
    done
Packit 4ff8ab
    shift
Packit 4ff8ab
  fi
Packit 4ff8ab
  # X makedepend
Packit 4ff8ab
  shift
Packit 4ff8ab
  cleared=no eat=no
Packit 4ff8ab
  for arg
Packit 4ff8ab
  do
Packit 4ff8ab
    case $cleared in
Packit 4ff8ab
    no)
Packit 4ff8ab
      set ""; shift
Packit 4ff8ab
      cleared=yes ;;
Packit 4ff8ab
    esac
Packit 4ff8ab
    if test $eat = yes; then
Packit 4ff8ab
      eat=no
Packit 4ff8ab
      continue
Packit 4ff8ab
    fi
Packit 4ff8ab
    case "$arg" in
Packit 4ff8ab
    -D*|-I*)
Packit 4ff8ab
      set fnord "$@" "$arg"; shift ;;
Packit 4ff8ab
    # Strip any option that makedepend may not understand.  Remove
Packit 4ff8ab
    # the object too, otherwise makedepend will parse it as a source file.
Packit 4ff8ab
    -arch)
Packit 4ff8ab
      eat=yes ;;
Packit 4ff8ab
    -*|$object)
Packit 4ff8ab
      ;;
Packit 4ff8ab
    *)
Packit 4ff8ab
      set fnord "$@" "$arg"; shift ;;
Packit 4ff8ab
    esac
Packit 4ff8ab
  done
Packit 4ff8ab
  obj_suffix=`echo "$object" | sed 's/^.*\././'`
Packit 4ff8ab
  touch "$tmpdepfile"
Packit 4ff8ab
  ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
Packit 4ff8ab
  rm -f "$depfile"
Packit 4ff8ab
  # makedepend may prepend the VPATH from the source file name to the object.
Packit 4ff8ab
  # No need to regex-escape $object, excess matching of '.' is harmless.
Packit 4ff8ab
  sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile"
Packit 4ff8ab
  # Some versions of the HPUX 10.20 sed can't process the last invocation
Packit 4ff8ab
  # correctly.  Breaking it into two sed invocations is a workaround.
Packit 4ff8ab
  sed '1,2d' "$tmpdepfile" \
Packit 4ff8ab
    | tr ' ' "$nl" \
Packit 4ff8ab
    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
Packit 4ff8ab
    | sed -e 's/$/ :/' >> "$depfile"
Packit 4ff8ab
  rm -f "$tmpdepfile" "$tmpdepfile".bak
Packit 4ff8ab
  ;;
Packit 4ff8ab
Packit 4ff8ab
cpp)
Packit 4ff8ab
  # Important note: in order to support this mode, a compiler *must*
Packit 4ff8ab
  # always write the preprocessed file to stdout.
Packit 4ff8ab
  "$@" || exit $?
Packit 4ff8ab
Packit 4ff8ab
  # Remove the call to Libtool.
Packit 4ff8ab
  if test "$libtool" = yes; then
Packit 4ff8ab
    while test "X$1" != 'X--mode=compile'; do
Packit 4ff8ab
      shift
Packit 4ff8ab
    done
Packit 4ff8ab
    shift
Packit 4ff8ab
  fi
Packit 4ff8ab
Packit 4ff8ab
  # Remove '-o $object'.
Packit 4ff8ab
  IFS=" "
Packit 4ff8ab
  for arg
Packit 4ff8ab
  do
Packit 4ff8ab
    case $arg in
Packit 4ff8ab
    -o)
Packit 4ff8ab
      shift
Packit 4ff8ab
      ;;
Packit 4ff8ab
    $object)
Packit 4ff8ab
      shift
Packit 4ff8ab
      ;;
Packit 4ff8ab
    *)
Packit 4ff8ab
      set fnord "$@" "$arg"
Packit 4ff8ab
      shift # fnord
Packit 4ff8ab
      shift # $arg
Packit 4ff8ab
      ;;
Packit 4ff8ab
    esac
Packit 4ff8ab
  done
Packit 4ff8ab
Packit 4ff8ab
  "$@" -E \
Packit 4ff8ab
    | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
Packit 4ff8ab
             -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
Packit 4ff8ab
    | sed '$ s: \\$::' > "$tmpdepfile"
Packit 4ff8ab
  rm -f "$depfile"
Packit 4ff8ab
  echo "$object : \\" > "$depfile"
Packit 4ff8ab
  cat < "$tmpdepfile" >> "$depfile"
Packit 4ff8ab
  sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
Packit 4ff8ab
  rm -f "$tmpdepfile"
Packit 4ff8ab
  ;;
Packit 4ff8ab
Packit 4ff8ab
msvisualcpp)
Packit 4ff8ab
  # Important note: in order to support this mode, a compiler *must*
Packit 4ff8ab
  # always write the preprocessed file to stdout.
Packit 4ff8ab
  "$@" || exit $?
Packit 4ff8ab
Packit 4ff8ab
  # Remove the call to Libtool.
Packit 4ff8ab
  if test "$libtool" = yes; then
Packit 4ff8ab
    while test "X$1" != 'X--mode=compile'; do
Packit 4ff8ab
      shift
Packit 4ff8ab
    done
Packit 4ff8ab
    shift
Packit 4ff8ab
  fi
Packit 4ff8ab
Packit 4ff8ab
  IFS=" "
Packit 4ff8ab
  for arg
Packit 4ff8ab
  do
Packit 4ff8ab
    case "$arg" in
Packit 4ff8ab
    -o)
Packit 4ff8ab
      shift
Packit 4ff8ab
      ;;
Packit 4ff8ab
    $object)
Packit 4ff8ab
      shift
Packit 4ff8ab
      ;;
Packit 4ff8ab
    "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
Packit 4ff8ab
        set fnord "$@"
Packit 4ff8ab
        shift
Packit 4ff8ab
        shift
Packit 4ff8ab
        ;;
Packit 4ff8ab
    *)
Packit 4ff8ab
        set fnord "$@" "$arg"
Packit 4ff8ab
        shift
Packit 4ff8ab
        shift
Packit 4ff8ab
        ;;
Packit 4ff8ab
    esac
Packit 4ff8ab
  done
Packit 4ff8ab
  "$@" -E 2>/dev/null |
Packit 4ff8ab
  sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
Packit 4ff8ab
  rm -f "$depfile"
Packit 4ff8ab
  echo "$object : \\" > "$depfile"
Packit 4ff8ab
  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile"
Packit 4ff8ab
  echo "$tab" >> "$depfile"
Packit 4ff8ab
  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
Packit 4ff8ab
  rm -f "$tmpdepfile"
Packit 4ff8ab
  ;;
Packit 4ff8ab
Packit 4ff8ab
msvcmsys)
Packit 4ff8ab
  # This case exists only to let depend.m4 do its work.  It works by
Packit 4ff8ab
  # looking at the text of this script.  This case will never be run,
Packit 4ff8ab
  # since it is checked for above.
Packit 4ff8ab
  exit 1
Packit 4ff8ab
  ;;
Packit 4ff8ab
Packit 4ff8ab
none)
Packit 4ff8ab
  exec "$@"
Packit 4ff8ab
  ;;
Packit 4ff8ab
Packit 4ff8ab
*)
Packit 4ff8ab
  echo "Unknown depmode $depmode" 1>&2
Packit 4ff8ab
  exit 1
Packit 4ff8ab
  ;;
Packit 4ff8ab
esac
Packit 4ff8ab
Packit 4ff8ab
exit 0
Packit 4ff8ab
Packit 4ff8ab
# Local Variables:
Packit 4ff8ab
# mode: shell-script
Packit 4ff8ab
# sh-indentation: 2
Packit 4ff8ab
# eval: (add-hook 'write-file-hooks 'time-stamp)
Packit 4ff8ab
# time-stamp-start: "scriptversion="
Packit 4ff8ab
# time-stamp-format: "%:y-%02m-%02d.%02H"
Packit 4ff8ab
# time-stamp-time-zone: "UTC"
Packit 4ff8ab
# time-stamp-end: "; # UTC"
Packit 4ff8ab
# End: