Blame depcomp

Packit 6bd9ab
#! /bin/sh
Packit 6bd9ab
# depcomp - compile a program generating dependencies as side-effects
Packit 6bd9ab
Packit 6bd9ab
scriptversion=2016-01-11.22; # UTC
Packit 6bd9ab
Packit 6bd9ab
# Copyright (C) 1999-2017 Free Software Foundation, Inc.
Packit 6bd9ab
Packit 6bd9ab
# This program is free software; you can redistribute it and/or modify
Packit 6bd9ab
# it under the terms of the GNU General Public License as published by
Packit 6bd9ab
# the Free Software Foundation; either version 2, or (at your option)
Packit 6bd9ab
# any later version.
Packit 6bd9ab
Packit 6bd9ab
# This program is distributed in the hope that it will be useful,
Packit 6bd9ab
# but WITHOUT ANY WARRANTY; without even the implied warranty of
Packit 6bd9ab
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Packit 6bd9ab
# GNU General Public License for more details.
Packit 6bd9ab
Packit 6bd9ab
# You should have received a copy of the GNU General Public License
Packit 6bd9ab
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
Packit 6bd9ab
Packit 6bd9ab
# As a special exception to the GNU General Public License, if you
Packit 6bd9ab
# distribute this file as part of a program that contains a
Packit 6bd9ab
# configuration script generated by Autoconf, you may include it under
Packit 6bd9ab
# the same distribution terms that you use for the rest of that program.
Packit 6bd9ab
Packit 6bd9ab
# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
Packit 6bd9ab
Packit 6bd9ab
case $1 in
Packit 6bd9ab
  '')
Packit 6bd9ab
    echo "$0: No command.  Try '$0 --help' for more information." 1>&2
Packit 6bd9ab
    exit 1;
Packit 6bd9ab
    ;;
Packit 6bd9ab
  -h | --h*)
Packit 6bd9ab
    cat <<\EOF
Packit 6bd9ab
Usage: depcomp [--help] [--version] PROGRAM [ARGS]
Packit 6bd9ab
Packit 6bd9ab
Run PROGRAMS ARGS to compile a file, generating dependencies
Packit 6bd9ab
as side-effects.
Packit 6bd9ab
Packit 6bd9ab
Environment variables:
Packit 6bd9ab
  depmode     Dependency tracking mode.
Packit 6bd9ab
  source      Source file read by 'PROGRAMS ARGS'.
Packit 6bd9ab
  object      Object file output by 'PROGRAMS ARGS'.
Packit 6bd9ab
  DEPDIR      directory where to store dependencies.
Packit 6bd9ab
  depfile     Dependency file to output.
Packit 6bd9ab
  tmpdepfile  Temporary file to use when outputting dependencies.
Packit 6bd9ab
  libtool     Whether libtool is used (yes/no).
Packit 6bd9ab
Packit 6bd9ab
Report bugs to <bug-automake@gnu.org>.
Packit 6bd9ab
EOF
Packit 6bd9ab
    exit $?
Packit 6bd9ab
    ;;
Packit 6bd9ab
  -v | --v*)
Packit 6bd9ab
    echo "depcomp $scriptversion"
Packit 6bd9ab
    exit $?
Packit 6bd9ab
    ;;
Packit 6bd9ab
esac
Packit 6bd9ab
Packit 6bd9ab
# Get the directory component of the given path, and save it in the
Packit 6bd9ab
# global variables '$dir'.  Note that this directory component will
Packit 6bd9ab
# be either empty or ending with a '/' character.  This is deliberate.
Packit 6bd9ab
set_dir_from ()
Packit 6bd9ab
{
Packit 6bd9ab
  case $1 in
Packit 6bd9ab
    */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;;
Packit 6bd9ab
      *) dir=;;
Packit 6bd9ab
  esac
Packit 6bd9ab
}
Packit 6bd9ab
Packit 6bd9ab
# Get the suffix-stripped basename of the given path, and save it the
Packit 6bd9ab
# global variable '$base'.
Packit 6bd9ab
set_base_from ()
Packit 6bd9ab
{
Packit 6bd9ab
  base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'`
Packit 6bd9ab
}
Packit 6bd9ab
Packit 6bd9ab
# If no dependency file was actually created by the compiler invocation,
Packit 6bd9ab
# we still have to create a dummy depfile, to avoid errors with the
Packit 6bd9ab
# Makefile "include basename.Plo" scheme.
Packit 6bd9ab
make_dummy_depfile ()
Packit 6bd9ab
{
Packit 6bd9ab
  echo "#dummy" > "$depfile"
Packit 6bd9ab
}
Packit 6bd9ab
Packit 6bd9ab
# Factor out some common post-processing of the generated depfile.
Packit 6bd9ab
# Requires the auxiliary global variable '$tmpdepfile' to be set.
Packit 6bd9ab
aix_post_process_depfile ()
Packit 6bd9ab
{
Packit 6bd9ab
  # If the compiler actually managed to produce a dependency file,
Packit 6bd9ab
  # post-process it.
Packit 6bd9ab
  if test -f "$tmpdepfile"; then
Packit 6bd9ab
    # Each line is of the form 'foo.o: dependency.h'.
Packit 6bd9ab
    # Do two passes, one to just change these to
Packit 6bd9ab
    #   $object: dependency.h
Packit 6bd9ab
    # and one to simply output
Packit 6bd9ab
    #   dependency.h:
Packit 6bd9ab
    # which is needed to avoid the deleted-header problem.
Packit 6bd9ab
    { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile"
Packit 6bd9ab
      sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile"
Packit 6bd9ab
    } > "$depfile"
Packit 6bd9ab
    rm -f "$tmpdepfile"
Packit 6bd9ab
  else
Packit 6bd9ab
    make_dummy_depfile
Packit 6bd9ab
  fi
Packit 6bd9ab
}
Packit 6bd9ab
Packit 6bd9ab
# A tabulation character.
Packit 6bd9ab
tab='	'
Packit 6bd9ab
# A newline character.
Packit 6bd9ab
nl='
Packit 6bd9ab
'
Packit 6bd9ab
# Character ranges might be problematic outside the C locale.
Packit 6bd9ab
# These definitions help.
Packit 6bd9ab
upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ
Packit 6bd9ab
lower=abcdefghijklmnopqrstuvwxyz
Packit 6bd9ab
digits=0123456789
Packit 6bd9ab
alpha=${upper}${lower}
Packit 6bd9ab
Packit 6bd9ab
if test -z "$depmode" || test -z "$source" || test -z "$object"; then
Packit 6bd9ab
  echo "depcomp: Variables source, object and depmode must be set" 1>&2
Packit 6bd9ab
  exit 1
Packit 6bd9ab
fi
Packit 6bd9ab
Packit 6bd9ab
# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
Packit 6bd9ab
depfile=${depfile-`echo "$object" |
Packit 6bd9ab
  sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
Packit 6bd9ab
tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
Packit 6bd9ab
Packit 6bd9ab
rm -f "$tmpdepfile"
Packit 6bd9ab
Packit 6bd9ab
# Avoid interferences from the environment.
Packit 6bd9ab
gccflag= dashmflag=
Packit 6bd9ab
Packit 6bd9ab
# Some modes work just like other modes, but use different flags.  We
Packit 6bd9ab
# parameterize here, but still list the modes in the big case below,
Packit 6bd9ab
# to make depend.m4 easier to write.  Note that we *cannot* use a case
Packit 6bd9ab
# here, because this file can only contain one case statement.
Packit 6bd9ab
if test "$depmode" = hp; then
Packit 6bd9ab
  # HP compiler uses -M and no extra arg.
Packit 6bd9ab
  gccflag=-M
Packit 6bd9ab
  depmode=gcc
Packit 6bd9ab
fi
Packit 6bd9ab
Packit 6bd9ab
if test "$depmode" = dashXmstdout; then
Packit 6bd9ab
  # This is just like dashmstdout with a different argument.
Packit 6bd9ab
  dashmflag=-xM
Packit 6bd9ab
  depmode=dashmstdout
Packit 6bd9ab
fi
Packit 6bd9ab
Packit 6bd9ab
cygpath_u="cygpath -u -f -"
Packit 6bd9ab
if test "$depmode" = msvcmsys; then
Packit 6bd9ab
  # This is just like msvisualcpp but w/o cygpath translation.
Packit 6bd9ab
  # Just convert the backslash-escaped backslashes to single forward
Packit 6bd9ab
  # slashes to satisfy depend.m4
Packit 6bd9ab
  cygpath_u='sed s,\\\\,/,g'
Packit 6bd9ab
  depmode=msvisualcpp
Packit 6bd9ab
fi
Packit 6bd9ab
Packit 6bd9ab
if test "$depmode" = msvc7msys; then
Packit 6bd9ab
  # This is just like msvc7 but w/o cygpath translation.
Packit 6bd9ab
  # Just convert the backslash-escaped backslashes to single forward
Packit 6bd9ab
  # slashes to satisfy depend.m4
Packit 6bd9ab
  cygpath_u='sed s,\\\\,/,g'
Packit 6bd9ab
  depmode=msvc7
Packit 6bd9ab
fi
Packit 6bd9ab
Packit 6bd9ab
if test "$depmode" = xlc; then
Packit 6bd9ab
  # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information.
Packit 6bd9ab
  gccflag=-qmakedep=gcc,-MF
Packit 6bd9ab
  depmode=gcc
Packit 6bd9ab
fi
Packit 6bd9ab
Packit 6bd9ab
case "$depmode" in
Packit 6bd9ab
gcc3)
Packit 6bd9ab
## gcc 3 implements dependency tracking that does exactly what
Packit 6bd9ab
## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
Packit 6bd9ab
## it if -MD -MP comes after the -MF stuff.  Hmm.
Packit 6bd9ab
## Unfortunately, FreeBSD c89 acceptance of flags depends upon
Packit 6bd9ab
## the command line argument order; so add the flags where they
Packit 6bd9ab
## appear in depend2.am.  Note that the slowdown incurred here
Packit 6bd9ab
## affects only configure: in makefiles, %FASTDEP% shortcuts this.
Packit 6bd9ab
  for arg
Packit 6bd9ab
  do
Packit 6bd9ab
    case $arg in
Packit 6bd9ab
    -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
Packit 6bd9ab
    *)  set fnord "$@" "$arg" ;;
Packit 6bd9ab
    esac
Packit 6bd9ab
    shift # fnord
Packit 6bd9ab
    shift # $arg
Packit 6bd9ab
  done
Packit 6bd9ab
  "$@"
Packit 6bd9ab
  stat=$?
Packit 6bd9ab
  if test $stat -ne 0; then
Packit 6bd9ab
    rm -f "$tmpdepfile"
Packit 6bd9ab
    exit $stat
Packit 6bd9ab
  fi
Packit 6bd9ab
  mv "$tmpdepfile" "$depfile"
Packit 6bd9ab
  ;;
Packit 6bd9ab
Packit 6bd9ab
gcc)
Packit 6bd9ab
## Note that this doesn't just cater to obsosete pre-3.x GCC compilers.
Packit 6bd9ab
## but also to in-use compilers like IMB xlc/xlC and the HP C compiler.
Packit 6bd9ab
## (see the conditional assignment to $gccflag above).
Packit 6bd9ab
## There are various ways to get dependency output from gcc.  Here's
Packit 6bd9ab
## why we pick this rather obscure method:
Packit 6bd9ab
## - Don't want to use -MD because we'd like the dependencies to end
Packit 6bd9ab
##   up in a subdir.  Having to rename by hand is ugly.
Packit 6bd9ab
##   (We might end up doing this anyway to support other compilers.)
Packit 6bd9ab
## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
Packit 6bd9ab
##   -MM, not -M (despite what the docs say).  Also, it might not be
Packit 6bd9ab
##   supported by the other compilers which use the 'gcc' depmode.
Packit 6bd9ab
## - Using -M directly means running the compiler twice (even worse
Packit 6bd9ab
##   than renaming).
Packit 6bd9ab
  if test -z "$gccflag"; then
Packit 6bd9ab
    gccflag=-MD,
Packit 6bd9ab
  fi
Packit 6bd9ab
  "$@" -Wp,"$gccflag$tmpdepfile"
Packit 6bd9ab
  stat=$?
Packit 6bd9ab
  if test $stat -ne 0; then
Packit 6bd9ab
    rm -f "$tmpdepfile"
Packit 6bd9ab
    exit $stat
Packit 6bd9ab
  fi
Packit 6bd9ab
  rm -f "$depfile"
Packit 6bd9ab
  echo "$object : \\" > "$depfile"
Packit 6bd9ab
  # The second -e expression handles DOS-style file names with drive
Packit 6bd9ab
  # letters.
Packit 6bd9ab
  sed -e 's/^[^:]*: / /' \
Packit 6bd9ab
      -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
Packit 6bd9ab
## This next piece of magic avoids the "deleted header file" problem.
Packit 6bd9ab
## The problem is that when a header file which appears in a .P file
Packit 6bd9ab
## is deleted, the dependency causes make to die (because there is
Packit 6bd9ab
## typically no way to rebuild the header).  We avoid this by adding
Packit 6bd9ab
## dummy dependencies for each header file.  Too bad gcc doesn't do
Packit 6bd9ab
## this for us directly.
Packit 6bd9ab
## Some versions of gcc put a space before the ':'.  On the theory
Packit 6bd9ab
## that the space means something, we add a space to the output as
Packit 6bd9ab
## well.  hp depmode also adds that space, but also prefixes the VPATH
Packit 6bd9ab
## to the object.  Take care to not repeat it in the output.
Packit 6bd9ab
## Some versions of the HPUX 10.20 sed can't process this invocation
Packit 6bd9ab
## correctly.  Breaking it into two sed invocations is a workaround.
Packit 6bd9ab
  tr ' ' "$nl" < "$tmpdepfile" \
Packit 6bd9ab
    | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \
Packit 6bd9ab
    | sed -e 's/$/ :/' >> "$depfile"
Packit 6bd9ab
  rm -f "$tmpdepfile"
Packit 6bd9ab
  ;;
Packit 6bd9ab
Packit 6bd9ab
hp)
Packit 6bd9ab
  # This case exists only to let depend.m4 do its work.  It works by
Packit 6bd9ab
  # looking at the text of this script.  This case will never be run,
Packit 6bd9ab
  # since it is checked for above.
Packit 6bd9ab
  exit 1
Packit 6bd9ab
  ;;
Packit 6bd9ab
Packit 6bd9ab
sgi)
Packit 6bd9ab
  if test "$libtool" = yes; then
Packit 6bd9ab
    "$@" "-Wp,-MDupdate,$tmpdepfile"
Packit 6bd9ab
  else
Packit 6bd9ab
    "$@" -MDupdate "$tmpdepfile"
Packit 6bd9ab
  fi
Packit 6bd9ab
  stat=$?
Packit 6bd9ab
  if test $stat -ne 0; then
Packit 6bd9ab
    rm -f "$tmpdepfile"
Packit 6bd9ab
    exit $stat
Packit 6bd9ab
  fi
Packit 6bd9ab
  rm -f "$depfile"
Packit 6bd9ab
Packit 6bd9ab
  if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
Packit 6bd9ab
    echo "$object : \\" > "$depfile"
Packit 6bd9ab
    # Clip off the initial element (the dependent).  Don't try to be
Packit 6bd9ab
    # clever and replace this with sed code, as IRIX sed won't handle
Packit 6bd9ab
    # lines with more than a fixed number of characters (4096 in
Packit 6bd9ab
    # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
Packit 6bd9ab
    # the IRIX cc adds comments like '#:fec' to the end of the
Packit 6bd9ab
    # dependency line.
Packit 6bd9ab
    tr ' ' "$nl" < "$tmpdepfile" \
Packit 6bd9ab
      | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \
Packit 6bd9ab
      | tr "$nl" ' ' >> "$depfile"
Packit 6bd9ab
    echo >> "$depfile"
Packit 6bd9ab
    # The second pass generates a dummy entry for each header file.
Packit 6bd9ab
    tr ' ' "$nl" < "$tmpdepfile" \
Packit 6bd9ab
      | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
Packit 6bd9ab
      >> "$depfile"
Packit 6bd9ab
  else
Packit 6bd9ab
    make_dummy_depfile
Packit 6bd9ab
  fi
Packit 6bd9ab
  rm -f "$tmpdepfile"
Packit 6bd9ab
  ;;
Packit 6bd9ab
Packit 6bd9ab
xlc)
Packit 6bd9ab
  # This case exists only to let depend.m4 do its work.  It works by
Packit 6bd9ab
  # looking at the text of this script.  This case will never be run,
Packit 6bd9ab
  # since it is checked for above.
Packit 6bd9ab
  exit 1
Packit 6bd9ab
  ;;
Packit 6bd9ab
Packit 6bd9ab
aix)
Packit 6bd9ab
  # The C for AIX Compiler uses -M and outputs the dependencies
Packit 6bd9ab
  # in a .u file.  In older versions, this file always lives in the
Packit 6bd9ab
  # current directory.  Also, the AIX compiler puts '$object:' at the
Packit 6bd9ab
  # start of each line; $object doesn't have directory information.
Packit 6bd9ab
  # Version 6 uses the directory in both cases.
Packit 6bd9ab
  set_dir_from "$object"
Packit 6bd9ab
  set_base_from "$object"
Packit 6bd9ab
  if test "$libtool" = yes; then
Packit 6bd9ab
    tmpdepfile1=$dir$base.u
Packit 6bd9ab
    tmpdepfile2=$base.u
Packit 6bd9ab
    tmpdepfile3=$dir.libs/$base.u
Packit 6bd9ab
    "$@" -Wc,-M
Packit 6bd9ab
  else
Packit 6bd9ab
    tmpdepfile1=$dir$base.u
Packit 6bd9ab
    tmpdepfile2=$dir$base.u
Packit 6bd9ab
    tmpdepfile3=$dir$base.u
Packit 6bd9ab
    "$@" -M
Packit 6bd9ab
  fi
Packit 6bd9ab
  stat=$?
Packit 6bd9ab
  if test $stat -ne 0; then
Packit 6bd9ab
    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
Packit 6bd9ab
    exit $stat
Packit 6bd9ab
  fi
Packit 6bd9ab
Packit 6bd9ab
  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
Packit 6bd9ab
  do
Packit 6bd9ab
    test -f "$tmpdepfile" && break
Packit 6bd9ab
  done
Packit 6bd9ab
  aix_post_process_depfile
Packit 6bd9ab
  ;;
Packit 6bd9ab
Packit 6bd9ab
tcc)
Packit 6bd9ab
  # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26
Packit 6bd9ab
  # FIXME: That version still under development at the moment of writing.
Packit 6bd9ab
  #        Make that this statement remains true also for stable, released
Packit 6bd9ab
  #        versions.
Packit 6bd9ab
  # It will wrap lines (doesn't matter whether long or short) with a
Packit 6bd9ab
  # trailing '\', as in:
Packit 6bd9ab
  #
Packit 6bd9ab
  #   foo.o : \
Packit 6bd9ab
  #    foo.c \
Packit 6bd9ab
  #    foo.h \
Packit 6bd9ab
  #
Packit 6bd9ab
  # It will put a trailing '\' even on the last line, and will use leading
Packit 6bd9ab
  # spaces rather than leading tabs (at least since its commit 0394caf7
Packit 6bd9ab
  # "Emit spaces for -MD").
Packit 6bd9ab
  "$@" -MD -MF "$tmpdepfile"
Packit 6bd9ab
  stat=$?
Packit 6bd9ab
  if test $stat -ne 0; then
Packit 6bd9ab
    rm -f "$tmpdepfile"
Packit 6bd9ab
    exit $stat
Packit 6bd9ab
  fi
Packit 6bd9ab
  rm -f "$depfile"
Packit 6bd9ab
  # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'.
Packit 6bd9ab
  # We have to change lines of the first kind to '$object: \'.
Packit 6bd9ab
  sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile"
Packit 6bd9ab
  # And for each line of the second kind, we have to emit a 'dep.h:'
Packit 6bd9ab
  # dummy dependency, to avoid the deleted-header problem.
Packit 6bd9ab
  sed -n -e 's|^  *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile"
Packit 6bd9ab
  rm -f "$tmpdepfile"
Packit 6bd9ab
  ;;
Packit 6bd9ab
Packit 6bd9ab
## The order of this option in the case statement is important, since the
Packit 6bd9ab
## shell code in configure will try each of these formats in the order
Packit 6bd9ab
## listed in this file.  A plain '-MD' option would be understood by many
Packit 6bd9ab
## compilers, so we must ensure this comes after the gcc and icc options.
Packit 6bd9ab
pgcc)
Packit 6bd9ab
  # Portland's C compiler understands '-MD'.
Packit 6bd9ab
  # Will always output deps to 'file.d' where file is the root name of the
Packit 6bd9ab
  # source file under compilation, even if file resides in a subdirectory.
Packit 6bd9ab
  # The object file name does not affect the name of the '.d' file.
Packit 6bd9ab
  # pgcc 10.2 will output
Packit 6bd9ab
  #    foo.o: sub/foo.c sub/foo.h
Packit 6bd9ab
  # and will wrap long lines using '\' :
Packit 6bd9ab
  #    foo.o: sub/foo.c ... \
Packit 6bd9ab
  #     sub/foo.h ... \
Packit 6bd9ab
  #     ...
Packit 6bd9ab
  set_dir_from "$object"
Packit 6bd9ab
  # Use the source, not the object, to determine the base name, since
Packit 6bd9ab
  # that's sadly what pgcc will do too.
Packit 6bd9ab
  set_base_from "$source"
Packit 6bd9ab
  tmpdepfile=$base.d
Packit 6bd9ab
Packit 6bd9ab
  # For projects that build the same source file twice into different object
Packit 6bd9ab
  # files, the pgcc approach of using the *source* file root name can cause
Packit 6bd9ab
  # problems in parallel builds.  Use a locking strategy to avoid stomping on
Packit 6bd9ab
  # the same $tmpdepfile.
Packit 6bd9ab
  lockdir=$base.d-lock
Packit 6bd9ab
  trap "
Packit 6bd9ab
    echo '$0: caught signal, cleaning up...' >&2
Packit 6bd9ab
    rmdir '$lockdir'
Packit 6bd9ab
    exit 1
Packit 6bd9ab
  " 1 2 13 15
Packit 6bd9ab
  numtries=100
Packit 6bd9ab
  i=$numtries
Packit 6bd9ab
  while test $i -gt 0; do
Packit 6bd9ab
    # mkdir is a portable test-and-set.
Packit 6bd9ab
    if mkdir "$lockdir" 2>/dev/null; then
Packit 6bd9ab
      # This process acquired the lock.
Packit 6bd9ab
      "$@" -MD
Packit 6bd9ab
      stat=$?
Packit 6bd9ab
      # Release the lock.
Packit 6bd9ab
      rmdir "$lockdir"
Packit 6bd9ab
      break
Packit 6bd9ab
    else
Packit 6bd9ab
      # If the lock is being held by a different process, wait
Packit 6bd9ab
      # until the winning process is done or we timeout.
Packit 6bd9ab
      while test -d "$lockdir" && test $i -gt 0; do
Packit 6bd9ab
        sleep 1
Packit 6bd9ab
        i=`expr $i - 1`
Packit 6bd9ab
      done
Packit 6bd9ab
    fi
Packit 6bd9ab
    i=`expr $i - 1`
Packit 6bd9ab
  done
Packit 6bd9ab
  trap - 1 2 13 15
Packit 6bd9ab
  if test $i -le 0; then
Packit 6bd9ab
    echo "$0: failed to acquire lock after $numtries attempts" >&2
Packit 6bd9ab
    echo "$0: check lockdir '$lockdir'" >&2
Packit 6bd9ab
    exit 1
Packit 6bd9ab
  fi
Packit 6bd9ab
Packit 6bd9ab
  if test $stat -ne 0; then
Packit 6bd9ab
    rm -f "$tmpdepfile"
Packit 6bd9ab
    exit $stat
Packit 6bd9ab
  fi
Packit 6bd9ab
  rm -f "$depfile"
Packit 6bd9ab
  # Each line is of the form `foo.o: dependent.h',
Packit 6bd9ab
  # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
Packit 6bd9ab
  # Do two passes, one to just change these to
Packit 6bd9ab
  # `$object: dependent.h' and one to simply `dependent.h:'.
Packit 6bd9ab
  sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
Packit 6bd9ab
  # Some versions of the HPUX 10.20 sed can't process this invocation
Packit 6bd9ab
  # correctly.  Breaking it into two sed invocations is a workaround.
Packit 6bd9ab
  sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \
Packit 6bd9ab
    | sed -e 's/$/ :/' >> "$depfile"
Packit 6bd9ab
  rm -f "$tmpdepfile"
Packit 6bd9ab
  ;;
Packit 6bd9ab
Packit 6bd9ab
hp2)
Packit 6bd9ab
  # The "hp" stanza above does not work with aCC (C++) and HP's ia64
Packit 6bd9ab
  # compilers, which have integrated preprocessors.  The correct option
Packit 6bd9ab
  # to use with these is +Maked; it writes dependencies to a file named
Packit 6bd9ab
  # 'foo.d', which lands next to the object file, wherever that
Packit 6bd9ab
  # happens to be.
Packit 6bd9ab
  # Much of this is similar to the tru64 case; see comments there.
Packit 6bd9ab
  set_dir_from  "$object"
Packit 6bd9ab
  set_base_from "$object"
Packit 6bd9ab
  if test "$libtool" = yes; then
Packit 6bd9ab
    tmpdepfile1=$dir$base.d
Packit 6bd9ab
    tmpdepfile2=$dir.libs/$base.d
Packit 6bd9ab
    "$@" -Wc,+Maked
Packit 6bd9ab
  else
Packit 6bd9ab
    tmpdepfile1=$dir$base.d
Packit 6bd9ab
    tmpdepfile2=$dir$base.d
Packit 6bd9ab
    "$@" +Maked
Packit 6bd9ab
  fi
Packit 6bd9ab
  stat=$?
Packit 6bd9ab
  if test $stat -ne 0; then
Packit 6bd9ab
     rm -f "$tmpdepfile1" "$tmpdepfile2"
Packit 6bd9ab
     exit $stat
Packit 6bd9ab
  fi
Packit 6bd9ab
Packit 6bd9ab
  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
Packit 6bd9ab
  do
Packit 6bd9ab
    test -f "$tmpdepfile" && break
Packit 6bd9ab
  done
Packit 6bd9ab
  if test -f "$tmpdepfile"; then
Packit 6bd9ab
    sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile"
Packit 6bd9ab
    # Add 'dependent.h:' lines.
Packit 6bd9ab
    sed -ne '2,${
Packit 6bd9ab
               s/^ *//
Packit 6bd9ab
               s/ \\*$//
Packit 6bd9ab
               s/$/:/
Packit 6bd9ab
               p
Packit 6bd9ab
             }' "$tmpdepfile" >> "$depfile"
Packit 6bd9ab
  else
Packit 6bd9ab
    make_dummy_depfile
Packit 6bd9ab
  fi
Packit 6bd9ab
  rm -f "$tmpdepfile" "$tmpdepfile2"
Packit 6bd9ab
  ;;
Packit 6bd9ab
Packit 6bd9ab
tru64)
Packit 6bd9ab
  # The Tru64 compiler uses -MD to generate dependencies as a side
Packit 6bd9ab
  # effect.  'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'.
Packit 6bd9ab
  # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
Packit 6bd9ab
  # dependencies in 'foo.d' instead, so we check for that too.
Packit 6bd9ab
  # Subdirectories are respected.
Packit 6bd9ab
  set_dir_from  "$object"
Packit 6bd9ab
  set_base_from "$object"
Packit 6bd9ab
Packit 6bd9ab
  if test "$libtool" = yes; then
Packit 6bd9ab
    # Libtool generates 2 separate objects for the 2 libraries.  These
Packit 6bd9ab
    # two compilations output dependencies in $dir.libs/$base.o.d and
Packit 6bd9ab
    # in $dir$base.o.d.  We have to check for both files, because
Packit 6bd9ab
    # one of the two compilations can be disabled.  We should prefer
Packit 6bd9ab
    # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
Packit 6bd9ab
    # automatically cleaned when .libs/ is deleted, while ignoring
Packit 6bd9ab
    # the former would cause a distcleancheck panic.
Packit 6bd9ab
    tmpdepfile1=$dir$base.o.d          # libtool 1.5
Packit 6bd9ab
    tmpdepfile2=$dir.libs/$base.o.d    # Likewise.
Packit 6bd9ab
    tmpdepfile3=$dir.libs/$base.d      # Compaq CCC V6.2-504
Packit 6bd9ab
    "$@" -Wc,-MD
Packit 6bd9ab
  else
Packit 6bd9ab
    tmpdepfile1=$dir$base.d
Packit 6bd9ab
    tmpdepfile2=$dir$base.d
Packit 6bd9ab
    tmpdepfile3=$dir$base.d
Packit 6bd9ab
    "$@" -MD
Packit 6bd9ab
  fi
Packit 6bd9ab
Packit 6bd9ab
  stat=$?
Packit 6bd9ab
  if test $stat -ne 0; then
Packit 6bd9ab
    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
Packit 6bd9ab
    exit $stat
Packit 6bd9ab
  fi
Packit 6bd9ab
Packit 6bd9ab
  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
Packit 6bd9ab
  do
Packit 6bd9ab
    test -f "$tmpdepfile" && break
Packit 6bd9ab
  done
Packit 6bd9ab
  # Same post-processing that is required for AIX mode.
Packit 6bd9ab
  aix_post_process_depfile
Packit 6bd9ab
  ;;
Packit 6bd9ab
Packit 6bd9ab
msvc7)
Packit 6bd9ab
  if test "$libtool" = yes; then
Packit 6bd9ab
    showIncludes=-Wc,-showIncludes
Packit 6bd9ab
  else
Packit 6bd9ab
    showIncludes=-showIncludes
Packit 6bd9ab
  fi
Packit 6bd9ab
  "$@" $showIncludes > "$tmpdepfile"
Packit 6bd9ab
  stat=$?
Packit 6bd9ab
  grep -v '^Note: including file: ' "$tmpdepfile"
Packit 6bd9ab
  if test $stat -ne 0; then
Packit 6bd9ab
    rm -f "$tmpdepfile"
Packit 6bd9ab
    exit $stat
Packit 6bd9ab
  fi
Packit 6bd9ab
  rm -f "$depfile"
Packit 6bd9ab
  echo "$object : \\" > "$depfile"
Packit 6bd9ab
  # The first sed program below extracts the file names and escapes
Packit 6bd9ab
  # backslashes for cygpath.  The second sed program outputs the file
Packit 6bd9ab
  # name when reading, but also accumulates all include files in the
Packit 6bd9ab
  # hold buffer in order to output them again at the end.  This only
Packit 6bd9ab
  # works with sed implementations that can handle large buffers.
Packit 6bd9ab
  sed < "$tmpdepfile" -n '
Packit 6bd9ab
/^Note: including file:  *\(.*\)/ {
Packit 6bd9ab
  s//\1/
Packit 6bd9ab
  s/\\/\\\\/g
Packit 6bd9ab
  p
Packit 6bd9ab
}' | $cygpath_u | sort -u | sed -n '
Packit 6bd9ab
s/ /\\ /g
Packit 6bd9ab
s/\(.*\)/'"$tab"'\1 \\/p
Packit 6bd9ab
s/.\(.*\) \\/\1:/
Packit 6bd9ab
H
Packit 6bd9ab
$ {
Packit 6bd9ab
  s/.*/'"$tab"'/
Packit 6bd9ab
  G
Packit 6bd9ab
  p
Packit 6bd9ab
}' >> "$depfile"
Packit 6bd9ab
  echo >> "$depfile" # make sure the fragment doesn't end with a backslash
Packit 6bd9ab
  rm -f "$tmpdepfile"
Packit 6bd9ab
  ;;
Packit 6bd9ab
Packit 6bd9ab
msvc7msys)
Packit 6bd9ab
  # This case exists only to let depend.m4 do its work.  It works by
Packit 6bd9ab
  # looking at the text of this script.  This case will never be run,
Packit 6bd9ab
  # since it is checked for above.
Packit 6bd9ab
  exit 1
Packit 6bd9ab
  ;;
Packit 6bd9ab
Packit 6bd9ab
#nosideeffect)
Packit 6bd9ab
  # This comment above is used by automake to tell side-effect
Packit 6bd9ab
  # dependency tracking mechanisms from slower ones.
Packit 6bd9ab
Packit 6bd9ab
dashmstdout)
Packit 6bd9ab
  # Important note: in order to support this mode, a compiler *must*
Packit 6bd9ab
  # always write the preprocessed file to stdout, regardless of -o.
Packit 6bd9ab
  "$@" || exit $?
Packit 6bd9ab
Packit 6bd9ab
  # Remove the call to Libtool.
Packit 6bd9ab
  if test "$libtool" = yes; then
Packit 6bd9ab
    while test "X$1" != 'X--mode=compile'; do
Packit 6bd9ab
      shift
Packit 6bd9ab
    done
Packit 6bd9ab
    shift
Packit 6bd9ab
  fi
Packit 6bd9ab
Packit 6bd9ab
  # Remove '-o $object'.
Packit 6bd9ab
  IFS=" "
Packit 6bd9ab
  for arg
Packit 6bd9ab
  do
Packit 6bd9ab
    case $arg in
Packit 6bd9ab
    -o)
Packit 6bd9ab
      shift
Packit 6bd9ab
      ;;
Packit 6bd9ab
    $object)
Packit 6bd9ab
      shift
Packit 6bd9ab
      ;;
Packit 6bd9ab
    *)
Packit 6bd9ab
      set fnord "$@" "$arg"
Packit 6bd9ab
      shift # fnord
Packit 6bd9ab
      shift # $arg
Packit 6bd9ab
      ;;
Packit 6bd9ab
    esac
Packit 6bd9ab
  done
Packit 6bd9ab
Packit 6bd9ab
  test -z "$dashmflag" && dashmflag=-M
Packit 6bd9ab
  # Require at least two characters before searching for ':'
Packit 6bd9ab
  # in the target name.  This is to cope with DOS-style filenames:
Packit 6bd9ab
  # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise.
Packit 6bd9ab
  "$@" $dashmflag |
Packit 6bd9ab
    sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile"
Packit 6bd9ab
  rm -f "$depfile"
Packit 6bd9ab
  cat < "$tmpdepfile" > "$depfile"
Packit 6bd9ab
  # Some versions of the HPUX 10.20 sed can't process this sed invocation
Packit 6bd9ab
  # correctly.  Breaking it into two sed invocations is a workaround.
Packit 6bd9ab
  tr ' ' "$nl" < "$tmpdepfile" \
Packit 6bd9ab
    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
Packit 6bd9ab
    | sed -e 's/$/ :/' >> "$depfile"
Packit 6bd9ab
  rm -f "$tmpdepfile"
Packit 6bd9ab
  ;;
Packit 6bd9ab
Packit 6bd9ab
dashXmstdout)
Packit 6bd9ab
  # This case only exists to satisfy depend.m4.  It is never actually
Packit 6bd9ab
  # run, as this mode is specially recognized in the preamble.
Packit 6bd9ab
  exit 1
Packit 6bd9ab
  ;;
Packit 6bd9ab
Packit 6bd9ab
makedepend)
Packit 6bd9ab
  "$@" || exit $?
Packit 6bd9ab
  # Remove any Libtool call
Packit 6bd9ab
  if test "$libtool" = yes; then
Packit 6bd9ab
    while test "X$1" != 'X--mode=compile'; do
Packit 6bd9ab
      shift
Packit 6bd9ab
    done
Packit 6bd9ab
    shift
Packit 6bd9ab
  fi
Packit 6bd9ab
  # X makedepend
Packit 6bd9ab
  shift
Packit 6bd9ab
  cleared=no eat=no
Packit 6bd9ab
  for arg
Packit 6bd9ab
  do
Packit 6bd9ab
    case $cleared in
Packit 6bd9ab
    no)
Packit 6bd9ab
      set ""; shift
Packit 6bd9ab
      cleared=yes ;;
Packit 6bd9ab
    esac
Packit 6bd9ab
    if test $eat = yes; then
Packit 6bd9ab
      eat=no
Packit 6bd9ab
      continue
Packit 6bd9ab
    fi
Packit 6bd9ab
    case "$arg" in
Packit 6bd9ab
    -D*|-I*)
Packit 6bd9ab
      set fnord "$@" "$arg"; shift ;;
Packit 6bd9ab
    # Strip any option that makedepend may not understand.  Remove
Packit 6bd9ab
    # the object too, otherwise makedepend will parse it as a source file.
Packit 6bd9ab
    -arch)
Packit 6bd9ab
      eat=yes ;;
Packit 6bd9ab
    -*|$object)
Packit 6bd9ab
      ;;
Packit 6bd9ab
    *)
Packit 6bd9ab
      set fnord "$@" "$arg"; shift ;;
Packit 6bd9ab
    esac
Packit 6bd9ab
  done
Packit 6bd9ab
  obj_suffix=`echo "$object" | sed 's/^.*\././'`
Packit 6bd9ab
  touch "$tmpdepfile"
Packit 6bd9ab
  ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
Packit 6bd9ab
  rm -f "$depfile"
Packit 6bd9ab
  # makedepend may prepend the VPATH from the source file name to the object.
Packit 6bd9ab
  # No need to regex-escape $object, excess matching of '.' is harmless.
Packit 6bd9ab
  sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile"
Packit 6bd9ab
  # Some versions of the HPUX 10.20 sed can't process the last invocation
Packit 6bd9ab
  # correctly.  Breaking it into two sed invocations is a workaround.
Packit 6bd9ab
  sed '1,2d' "$tmpdepfile" \
Packit 6bd9ab
    | tr ' ' "$nl" \
Packit 6bd9ab
    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
Packit 6bd9ab
    | sed -e 's/$/ :/' >> "$depfile"
Packit 6bd9ab
  rm -f "$tmpdepfile" "$tmpdepfile".bak
Packit 6bd9ab
  ;;
Packit 6bd9ab
Packit 6bd9ab
cpp)
Packit 6bd9ab
  # Important note: in order to support this mode, a compiler *must*
Packit 6bd9ab
  # always write the preprocessed file to stdout.
Packit 6bd9ab
  "$@" || exit $?
Packit 6bd9ab
Packit 6bd9ab
  # Remove the call to Libtool.
Packit 6bd9ab
  if test "$libtool" = yes; then
Packit 6bd9ab
    while test "X$1" != 'X--mode=compile'; do
Packit 6bd9ab
      shift
Packit 6bd9ab
    done
Packit 6bd9ab
    shift
Packit 6bd9ab
  fi
Packit 6bd9ab
Packit 6bd9ab
  # Remove '-o $object'.
Packit 6bd9ab
  IFS=" "
Packit 6bd9ab
  for arg
Packit 6bd9ab
  do
Packit 6bd9ab
    case $arg in
Packit 6bd9ab
    -o)
Packit 6bd9ab
      shift
Packit 6bd9ab
      ;;
Packit 6bd9ab
    $object)
Packit 6bd9ab
      shift
Packit 6bd9ab
      ;;
Packit 6bd9ab
    *)
Packit 6bd9ab
      set fnord "$@" "$arg"
Packit 6bd9ab
      shift # fnord
Packit 6bd9ab
      shift # $arg
Packit 6bd9ab
      ;;
Packit 6bd9ab
    esac
Packit 6bd9ab
  done
Packit 6bd9ab
Packit 6bd9ab
  "$@" -E \
Packit 6bd9ab
    | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
Packit 6bd9ab
             -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
Packit 6bd9ab
    | sed '$ s: \\$::' > "$tmpdepfile"
Packit 6bd9ab
  rm -f "$depfile"
Packit 6bd9ab
  echo "$object : \\" > "$depfile"
Packit 6bd9ab
  cat < "$tmpdepfile" >> "$depfile"
Packit 6bd9ab
  sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
Packit 6bd9ab
  rm -f "$tmpdepfile"
Packit 6bd9ab
  ;;
Packit 6bd9ab
Packit 6bd9ab
msvisualcpp)
Packit 6bd9ab
  # Important note: in order to support this mode, a compiler *must*
Packit 6bd9ab
  # always write the preprocessed file to stdout.
Packit 6bd9ab
  "$@" || exit $?
Packit 6bd9ab
Packit 6bd9ab
  # Remove the call to Libtool.
Packit 6bd9ab
  if test "$libtool" = yes; then
Packit 6bd9ab
    while test "X$1" != 'X--mode=compile'; do
Packit 6bd9ab
      shift
Packit 6bd9ab
    done
Packit 6bd9ab
    shift
Packit 6bd9ab
  fi
Packit 6bd9ab
Packit 6bd9ab
  IFS=" "
Packit 6bd9ab
  for arg
Packit 6bd9ab
  do
Packit 6bd9ab
    case "$arg" in
Packit 6bd9ab
    -o)
Packit 6bd9ab
      shift
Packit 6bd9ab
      ;;
Packit 6bd9ab
    $object)
Packit 6bd9ab
      shift
Packit 6bd9ab
      ;;
Packit 6bd9ab
    "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
Packit 6bd9ab
        set fnord "$@"
Packit 6bd9ab
        shift
Packit 6bd9ab
        shift
Packit 6bd9ab
        ;;
Packit 6bd9ab
    *)
Packit 6bd9ab
        set fnord "$@" "$arg"
Packit 6bd9ab
        shift
Packit 6bd9ab
        shift
Packit 6bd9ab
        ;;
Packit 6bd9ab
    esac
Packit 6bd9ab
  done
Packit 6bd9ab
  "$@" -E 2>/dev/null |
Packit 6bd9ab
  sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
Packit 6bd9ab
  rm -f "$depfile"
Packit 6bd9ab
  echo "$object : \\" > "$depfile"
Packit 6bd9ab
  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile"
Packit 6bd9ab
  echo "$tab" >> "$depfile"
Packit 6bd9ab
  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
Packit 6bd9ab
  rm -f "$tmpdepfile"
Packit 6bd9ab
  ;;
Packit 6bd9ab
Packit 6bd9ab
msvcmsys)
Packit 6bd9ab
  # This case exists only to let depend.m4 do its work.  It works by
Packit 6bd9ab
  # looking at the text of this script.  This case will never be run,
Packit 6bd9ab
  # since it is checked for above.
Packit 6bd9ab
  exit 1
Packit 6bd9ab
  ;;
Packit 6bd9ab
Packit 6bd9ab
none)
Packit 6bd9ab
  exec "$@"
Packit 6bd9ab
  ;;
Packit 6bd9ab
Packit 6bd9ab
*)
Packit 6bd9ab
  echo "Unknown depmode $depmode" 1>&2
Packit 6bd9ab
  exit 1
Packit 6bd9ab
  ;;
Packit 6bd9ab
esac
Packit 6bd9ab
Packit 6bd9ab
exit 0
Packit 6bd9ab
Packit 6bd9ab
# Local Variables:
Packit 6bd9ab
# mode: shell-script
Packit 6bd9ab
# sh-indentation: 2
Packit 6bd9ab
# eval: (add-hook 'write-file-hooks 'time-stamp)
Packit 6bd9ab
# time-stamp-start: "scriptversion="
Packit 6bd9ab
# time-stamp-format: "%:y-%02m-%02d.%02H"
Packit 6bd9ab
# time-stamp-time-zone: "UTC0"
Packit 6bd9ab
# time-stamp-end: "; # UTC"
Packit 6bd9ab
# End: