#! /bin/sh
  # Wrapper for compilers which do not understand '-c -o'.
  
  scriptversion=2012-10-14.11; # UTC
  
  # Copyright (C) 1999-2013 Free Software Foundation, Inc.
  # Written by Tom Tromey <tromey@cygnus.com>.
  #
  # This program is free software; you can redistribute it and/or modify
  # it under the terms of the GNU General Public License as published by
  # the Free Software Foundation; either version 2, or (at your option)
  # any later version.
  #
  # This program is distributed in the hope that it will be useful,
  # but WITHOUT ANY WARRANTY; without even the implied warranty of
  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  # GNU General Public License for more details.
  #
  # You should have received a copy of the GNU General Public License
  # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  
  # As a special exception to the GNU General Public License, if you
  # distribute this file as part of a program that contains a
  # configuration script generated by Autoconf, you may include it under
  # the same distribution terms that you use for the rest of that program.
  
  # This file is maintained in Automake, please report
  # bugs to <bug-automake@gnu.org> or send patches to
  # <automake-patches@gnu.org>.
  
  nl='
  '
  
  # We need space, tab and new line, in precisely that order.  Quoting is
  # there to prevent tools from complaining about whitespace usage.
  IFS=" ""	$nl"
  
  file_conv=
  
  # func_file_conv build_file lazy
  # Convert a $build file to $host form and store it in $file
  # Currently only supports Windows hosts. If the determined conversion
  # type is listed in (the comma separated) LAZY, no conversion will
  # take place.
  func_file_conv ()
  {
    file=$1
    case $file in
      / | /[!/]*) # absolute file, and not a UNC file
        if test -z "$file_conv"; then
  	# lazily determine how to convert abs files
  	case `uname -s` in
  	  MINGW*)
  	    file_conv=mingw
  	    ;;
  	  CYGWIN*)
  	    file_conv=cygwin
  	    ;;
  	  *)
  	    file_conv=wine
  	    ;;
  	esac
        fi
        case $file_conv/,$2, in
  	*,$file_conv,*)
  	  ;;
  	mingw/*)
  	  file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'`
  	  ;;
  	cygwin/*)
  	  file=`cygpath -m "$file" || echo "$file"`
  	  ;;
  	wine/*)
  	  file=`winepath -w "$file" || echo "$file"`
  	  ;;
        esac
        ;;
    esac
  }
  
  # func_cl_dashL linkdir
  # Make cl look for libraries in LINKDIR
  func_cl_dashL ()
  {
    func_file_conv "$1"
    if test -z "$lib_path"; then
      lib_path=$file
    else
      lib_path="$lib_path;$file"
    fi
    linker_opts="$linker_opts -LIBPATH:$file"
  }
  
  # func_cl_dashl library
  # Do a library search-path lookup for cl
  func_cl_dashl ()
  {
    lib=$1
    found=no
    save_IFS=$IFS
    IFS=';'
    for dir in $lib_path $LIB
    do
      IFS=$save_IFS
      if $shared && test -f "$dir/$lib.dll.lib"; then
        found=yes
        lib=$dir/$lib.dll.lib
        break
      fi
      if test -f "$dir/$lib.lib"; then
        found=yes
        lib=$dir/$lib.lib
        break
      fi
      if test -f "$dir/lib$lib.a"; then
        found=yes
        lib=$dir/lib$lib.a
        break
      fi
    done
    IFS=$save_IFS
  
    if test "$found" != yes; then
      lib=$lib.lib
    fi
  }
  
  # func_cl_wrapper cl arg...
  # Adjust compile command to suit cl
  func_cl_wrapper ()
  {
    # Assume a capable shell
    lib_path=
    shared=:
    linker_opts=
    for arg
    do
      if test -n "$eat"; then
        eat=
      else
        case $1 in
  	-o)
  	  # configure might choose to run compile as 'compile cc -o foo foo.c'.
  	  eat=1
  	  case $2 in
  	    *.o | *.[oO][bB][jJ])
  	      func_file_conv "$2"
  	      set x "$@" -Fo"$file"
  	      shift
  	      ;;
  	    *)
  	      func_file_conv "$2"
  	      set x "$@" -Fe"$file"
  	      shift
  	      ;;
  	  esac
  	  ;;
  	-I)
  	  eat=1
  	  func_file_conv "$2" mingw
  	  set x "$@" -I"$file"
  	  shift
  	  ;;
  	-I*)
  	  func_file_conv "${1#-I}" mingw
  	  set x "$@" -I"$file"
  	  shift
  	  ;;
  	-l)
  	  eat=1
  	  func_cl_dashl "$2"
  	  set x "$@" "$lib"
  	  shift
  	  ;;
  	-l*)
  	  func_cl_dashl "${1#-l}"
  	  set x "$@" "$lib"
  	  shift
  	  ;;
  	-L)
  	  eat=1
  	  func_cl_dashL "$2"
  	  ;;
  	-L*)
  	  func_cl_dashL "${1#-L}"
  	  ;;
  	-static)
  	  shared=false
  	  ;;
  	-Wl,*)
  	  arg=${1#-Wl,}
  	  save_ifs="$IFS"; IFS=','
  	  for flag in $arg; do
  	    IFS="$save_ifs"
  	    linker_opts="$linker_opts $flag"
  	  done
  	  IFS="$save_ifs"
  	  ;;
  	-Xlinker)
  	  eat=1
  	  linker_opts="$linker_opts $2"
  	  ;;
  	-*)
  	  set x "$@" "$1"
  	  shift
  	  ;;
  	*.cc | *.CC | *.cxx | *.CXX | *.[cC]++)
  	  func_file_conv "$1"
  	  set x "$@" -Tp"$file"
  	  shift
  	  ;;
  	*.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO])
  	  func_file_conv "$1" mingw
  	  set x "$@" "$file"
  	  shift
  	  ;;
  	*)
  	  set x "$@" "$1"
  	  shift
  	  ;;
        esac
      fi
      shift
    done
    if test -n "$linker_opts"; then
      linker_opts="-link$linker_opts"
    fi
    exec "$@" $linker_opts
    exit 1
  }
  
  eat=
  
  case $1 in
    '')
       echo "$0: No command.  Try '$0 --help' for more information." 1>&2
       exit 1;
       ;;
    -h | --h*)
      cat <<\EOF
  Usage: compile [--help] [--version] PROGRAM [ARGS]
  
  Wrapper for compilers which do not understand '-c -o'.
  Remove '-o dest.o' from ARGS, run PROGRAM with the remaining
  arguments, and rename the output as expected.
  
  If you are trying to build a whole package this is not the
  right script to run: please start by reading the file 'INSTALL'.
  
  Report bugs to <bug-automake@gnu.org>.
  EOF
      exit $?
      ;;
    -v | --v*)
      echo "compile $scriptversion"
      exit $?
      ;;
    cl | *[/\\]cl | cl.exe | *[/\\]cl.exe )
      func_cl_wrapper "$@"      # Doesn't return...
      ;;
  esac
  
  ofile=
  cfile=
  
  for arg
  do
    if test -n "$eat"; then
      eat=
    else
      case $1 in
        -o)
  	# configure might choose to run compile as 'compile cc -o foo foo.c'.
  	# So we strip '-o arg' only if arg is an object.
  	eat=1
  	case $2 in
  	  *.o | *.obj)
  	    ofile=$2
  	    ;;
  	  *)
  	    set x "$@" -o "$2"
  	    shift
  	    ;;
  	esac
  	;;
        *.c)
  	cfile=$1
  	set x "$@" "$1"
  	shift
  	;;
        *)
  	set x "$@" "$1"
  	shift
  	;;
      esac
    fi
    shift
  done
  
  if test -z "$ofile" || test -z "$cfile"; then
    # If no '-o' option was seen then we might have been invoked from a
    # pattern rule where we don't need one.  That is ok -- this is a
    # normal compilation that the losing compiler can handle.  If no
    # '.c' file was seen then we are probably linking.  That is also
    # ok.
    exec "$@"
  fi
  
  # Name of file we expect compiler to create.
  cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'`
  
  # Create the lock directory.
  # Note: use '[/\\:.-]' here to ensure that we don't use the same name
  # that we are using for the .o file.  Also, base the name on the expected
  # object file name, since that is what matters with a parallel build.
  lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d
  while true; do
    if mkdir "$lockdir" >/dev/null 2>&1; then
      break
    fi
    sleep 1
  done
  # FIXME: race condition here if user kills between mkdir and trap.
  trap "rmdir '$lockdir'; exit 1" 1 2 15
  
  # Run the compile.
  "$@"
  ret=$?
  
  if test -f "$cofile"; then
    test "$cofile" = "$ofile" || mv "$cofile" "$ofile"
  elif test -f "${cofile}bj"; then
    test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile"
  fi
  
  rmdir "$lockdir"
  exit $ret
  
  # Local Variables:
  # mode: shell-script
  # sh-indentation: 2
  # eval: (add-hook 'write-file-hooks 'time-stamp)
  # time-stamp-start: "scriptversion="
  # time-stamp-format: "%:y-%02m-%02d.%02H"
  # time-stamp-time-zone: "UTC"
  # time-stamp-end: "; # UTC"
  # End: