ltmain.sh

常好且全面的jpeg图像压缩算法

        compile_command=`$echo "X$compile_command" | $Xsed -e "s%@SYMFILE@%$objdir/${output}S.o%"`
        finalize_command=`$echo "X$finalize_command" | $Xsed -e "s%@SYMFILE@%$objdir/${output}S.o%"`
      elif test "$export_dynamic" != yes; then
        test -n "$dlfiles$dlprefiles" && $echo "$modename: warning: \`-dlopen' and \`-dlpreopen' are ignored without \`-export-dynamic'" 1>&2
      else
        # We keep going just in case the user didn't refer to
        # dld_preloaded_symbols.  The linker will fail if global_symbol_pipe
        # really was required.
        $echo "$modename: not configured to extract global symbols from dlpreopened files" 1>&2

        # Nullify the symbol file.
        compile_command=`$echo "X$compile_command" | $Xsed -e "s% @SYMFILE@%%"`
        finalize_command=`$echo "X$finalize_command" | $Xsed -e "s% @SYMFILE@%%"`
      fi

      if test -z "$link_against_libtool_libs" || test "$build_libtool_libs" != yes; then
        # Replace the output file specification.
        compile_command=`$echo "X$compile_command" | $Xsed -e 's%@OUTPUT@%'"$output"'%g'`
        finalize_command=`$echo "X$finalize_command" | $Xsed -e 's%@OUTPUT@%'"$output"'%g'`

        # We have no uninstalled library dependencies, so finalize right now.
        $show "$compile_command"
        $run eval "$compile_command"
        exit $?
      fi

      # Replace the output file specification.
      compile_command=`$echo "X$compile_command" | $Xsed -e 's%@OUTPUT@%'"$objdir/$output"'%g'`
      finalize_command=`$echo "X$finalize_command" | $Xsed -e 's%@OUTPUT@%'"$objdir/$output"'T%g'`

      # Create the binary in the object directory, then wrap it.
      if test -d $objdir; then :
      else
        $show "$mkdir $objdir"
	$run $mkdir $objdir
	status=$?
	if test $status -eq 0 || test -d $objdir; then :
	else
	  exit $status
	fi
      fi

      if test -n "$shlibpath_var"; then
        # We should set the shlibpath_var
        rpath=
        for dir in $temp_rpath; do
          case "$dir" in
          /* | [A-Za-z]:\\*)
            # Absolute path.
            rpath="$rpath$dir:"
            ;;
          *)
            # Relative path: add a thisdir entry.
            rpath="$rpath\$thisdir/$dir:"
            ;;
          esac
        done
        temp_rpath="$rpath"
      fi

      # Delete the old output file.
      $run $rm $output

      if test -n "$compile_shlibpath"; then
        compile_command="$shlibpath_var=\"$compile_shlibpath\$$shlibpath_var\" $compile_command"
      fi
      if test -n "$finalize_shlibpath"; then
        finalize_command="$shlibpath_var=\"$finalize_shlibpath\$$shlibpath_var\" $finalize_command"
      fi

      if test -n "$runpath_var" && test -n "$perm_rpath"; then
        # We should set the runpath_var.
        rpath=
        for dir in $perm_rpath; do
          rpath="$rpath$dir:"
        done
        compile_command="$runpath_var=\"$rpath\$$runpath_var\" $compile_command"
        finalize_command="$runpath_var=\"$rpath\$$runpath_var\" $finalize_command"
      fi

      case "$hardcode_action" in
      relink)
        # AGH! Flame the AIX and HP-UX people for me, will ya?
        $echo "$modename: warning: using a buggy system linker" 1>&2
        $echo "$modename: relinking will be required before \`$output' can be installed" 1>&2
        ;;
      esac

      $show "$compile_command"
      $run eval "$compile_command" || exit $?

      # Now create the wrapper script.
      $show "creating $output"

      # Quote the finalize command for shipping.
      finalize_command=`$echo "X$finalize_command" | $Xsed -e "$sed_quote_subst"`

      # Quote $echo for shipping.
      qecho=`$echo "X$echo" | $Xsed -e "$sed_quote_subst"`

      # Only actually do things if our run command is non-null.
      if test -z "$run"; then
        $rm $output
        trap "$rm $output; exit 1" 1 2 15

        $echo > $output "\
#! /bin/sh

# $output - temporary wrapper script for $objdir/$output
# Generated by ltmain.sh - GNU $PACKAGE $VERSION
#
# The $output program cannot be directly executed until all the libtool
# libraries that it depends on are installed.
#
# This wrapper script should never be moved out of \``pwd`'.
# If it is, it will not operate correctly.

# Sed substitution that helps us do robust quoting.  It backslashifies
# metacharacters that are still active within double-quoted strings.
Xsed='sed -e s/^X//'
sed_quote_subst='$sed_quote_subst'

# The HP-UX ksh and POSIX shell print the target directory to stdout
# if CDPATH is set.
if test \"\${CDPATH+set}\" = set; then CDPATH=; export CDPATH; fi

# This environment variable determines our operation mode.
if test \"\$libtool_install_magic\" = \"$magic\"; then
  # install mode needs the following variables:
  link_against_libtool_libs='$link_against_libtool_libs'
  finalize_command=\"$finalize_command\"
else
  # When we are sourced in execute mode, \$file and \$echo are already set.
  if test \"\$libtool_execute_magic\" = \"$magic\"; then :
  else
    echo=\"$qecho\"
    file=\"\$0\"
  fi\
"
        $echo >> $output "\

  # Find the directory that this script lives in.
  thisdir=\`\$echo \"X\$file\" | \$Xsed -e 's%/[^/]*$%%'\`
  test \"x\$thisdir\" = \"x\$file\" && thisdir=.

  # Follow symbolic links until we get to the real thisdir.
  file=\`ls -ld \"\$file\" | sed -n 's/.*-> //p'\`
  while test -n \"\$file\"; do
    destdir=\`\$echo \"X\$file\" | \$Xsed -e 's%/[^/]*\$%%'\`

    # If there was a directory component, then change thisdir.
    if test \"x\$destdir\" != \"x\$file\"; then
      case \"\$destdir\" in
      /* | [A-Za-z]:\\*) thisdir=\"\$destdir\" ;;
      *) thisdir=\"\$thisdir/\$destdir\" ;;
      esac
    fi

    file=\`\$echo \"X\$file\" | \$Xsed -e 's%^.*/%%'\`
    file=\`ls -ld \"\$thisdir/\$file\" | sed -n 's/.*-> //p'\`
  done

  # Try to get the absolute directory name.
  absdir=\`cd \"\$thisdir\" && pwd\`
  test -n \"\$absdir\" && thisdir=\"\$absdir\"

  progdir=\"\$thisdir/$objdir\"
  program='$output'

  if test -f \"\$progdir/\$program\"; then"

        # Export our shlibpath_var if we have one.
        if test -n "$shlibpath_var" && test -n "$temp_rpath"; then
          $echo >> $output "\
    # Add our own library path to $shlibpath_var
    $shlibpath_var=\"$temp_rpath\$$shlibpath_var\"

    # Some systems cannot cope with colon-terminated $shlibpath_var
    $shlibpath_var=\`\$echo \"X\$$shlibpath_var\" | \$Xsed -e 's/:*\$//'\`

    export $shlibpath_var
"
        fi

        $echo >> $output "\
    if test \"\$libtool_execute_magic\" != \"$magic\"; then
      # Run the actual program with our arguments.

      # Export the path to the program.
      PATH=\"\$progdir:\$PATH\"
      export PATH

      exec \$program \${1+\"\$@\"}

      \$echo \"\$0: cannot exec \$program \${1+\"\$@\"}\"
      exit 1
    fi
  else
    # The program doesn't exist.
    \$echo \"\$0: error: \$progdir/\$program does not exist\" 1>&2
    \$echo \"This script is just a wrapper for \$program.\" 1>&2
    echo \"See the $PACKAGE documentation for more information.\" 1>&2
    exit 1
  fi
fi\
"
        chmod +x $output
      fi
      exit 0
      ;;
    esac

    # See if we need to build an old-fashioned archive.
    if test "$build_old_libs" = "yes"; then
      # Transform .lo files to .o files.
      oldobjs="$objs"`$echo "X$libobjs " | $Xsed -e 's/[^   ]*\.a //g' -e 's/\.lo /.o /g' -e 's/ $//g'`

      # Do each command in the archive commands.
      if test -n "$old_archive_from_new_cmds" && test "$build_libtool_libs" = yes; then
	eval cmds=\"$old_archive_from_new_cmds\"
      else
	eval cmds=\"$old_archive_cmds\"
      fi
      IFS="${IFS= 	}"; save_ifs="$IFS"; IFS=';'
      for cmd in $cmds; do
        IFS="$save_ifs"
        $show "$cmd"
        $run eval "$cmd" || exit $?
      done
      IFS="$save_ifs"
    fi

    # Now create the libtool archive.
    case "$output" in
    *.la)
      old_library=
      test "$build_old_libs" = yes && old_library="$libname.a"

      $show "creating $output"

      # Only create the output if not a dry run.
      if test -z "$run"; then
        $echo > $output "\
# $output - a libtool library file
# Generated by ltmain.sh - GNU $PACKAGE $VERSION

# The name that we can dlopen(3).
dlname='$dlname'

# Names of this library.
library_names='$library_names'

# The name of the static archive.
old_library='$old_library'

# Libraries that this one depends upon.
dependency_libs='$dependency_libs'

# Version information for $libname.
current=$current
age=$age
revision=$revision

# Directory that this library needs to be installed in:
libdir='$install_libdir'\
"
      fi

      # Do a symbolic link so that the libtool archive can be found in
      # LD_LIBRARY_PATH before the program is installed.
      $show "(cd $objdir && $LN_S ../$output $output)"
      $run eval "(cd $objdir && $LN_S ../$output $output)" || exit 1
      ;;
    esac
    exit 0
    ;;

  # libtool install mode
  install)
    modename="$modename: install"

    # There may be an optional /bin/sh argument at the beginning of
    # install_prog (especially on Windows NT).
    if test "$nonopt" = "$SHELL"; then
      # Aesthetically quote it.
      arg=`$echo "X$nonopt" | $Xsed -e "$sed_quote_subst"`
      case "$arg" in
      *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*)
	arg="\"$arg\""
	;;
      esac
      install_prog="$arg "
      arg="$1"
      shift
    else
      install_prog=
      arg="$nonopt"
    fi

    # The real first argument should be the name of the installation program.
    # Aesthetically quote it.
    arg=`$echo "X$arg" | $Xsed -e "$sed_quote_subst"`
    case "$arg" in
    *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*)
      arg="\"$arg\""
      ;;
    esac
    install_prog="$install_prog$arg"

    # We need to accept at least all the BSD install flags.
    dest=
    files=
    opts=
    prev=
    install_type=
    isdir=
    stripme=
    for arg
    do
      if test -n "$dest"; then
        files="$files $dest"
        dest="$arg"
        continue
      fi

      case "$arg" in
      -d) isdir=yes ;;
      -f) prev="-f" ;;
      -g) prev="-g" ;;
      -m) prev="-m" ;;
      -o) prev="-o" ;;
      -s)
        stripme=" -s"
        continue
        ;;
      -*) ;;

      *)
        # If the previous option needed an argument, then skip it.
        if test -n "$prev"; then
          prev=
        else
          dest="$arg"
          continue
        fi
        ;;
      esac

      # Aesthetically quote the argument.
      arg=`$echo "X$arg" | $Xsed -e "$sed_quote_subst"`
      case "$arg" in
      *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*)
	arg="\"$arg\""
	;;
      esac
      install_prog="$install_prog $arg"
    done

    if test -z "$install_prog"; then
      $echo "$modename: you must specify an install program" 1>&2
      $echo "$help" 1>&2
      exit 1
    fi

    if test -n "$prev"; then
      $echo "$modename: the \`$prev' option requires an argument" 1>&2
      $echo "$help" 1>&2
      exit 1
    fi

    if test -z "$files"; then
      if test -z "$dest"; then
        $echo "$modename: no file or destination specified" 1>&2
      else
        $echo "$modename: you must specify a destination" 1>&2
      fi
      $echo "$help" 1>&2
      exit 1
    fi

    # Strip any trailing slash from the destination.
    dest=`$echo "X$dest" | $Xsed -e 's%/$%%'`

    # Check to see that the destination is a directory.
    test -d "$dest" && isdir=yes
    if test -n "$isdir"; then
      destdir="$dest"
      destname=
    else
      destdir=`$echo "X$dest" | $Xsed -e 's%/[^/]*$%%'`
      test "X$destdir" = "X$dest" && destdir=.
      destname=`$echo "X$dest" | $Xsed -e 's%^.*/%%'`

      # Not a directory, so check to see that there is only one file specified.
      set dummy $files
      if test $# -gt 2; then
        $echo "$modename: \`$dest' is not a directory" 1>&2
        $echo "$help" 1>&2
        exit 1
      fi
    fi
    case "$destdir" in
    /* | [A-Za-z]:\\*) ;;
    *)
      for file in $files; do
        case "$file" in
        *.lo) ;;
        *)
          $echo "$modename: \`$destdir' must be an absolute directory name" 1>&2
          $echo "$help" 1>&2
          exit 1
          ;;
        esac
      done
      ;;
    esac

    # This variable tells wrapper scripts just to set variables rather
    # than running their programs.
    libtool_install_magic="$magic"

    staticlibs=
    future_libdirs=
    current_libdirs=
    for file in $files; do

      # Do each installation.
      case "$file" in
      *.a)
        # Do the static libraries later.
        staticlibs="$staticlibs $file"
        ;;

      *.la)
        # Check to see that this really is a libtool archive.
        if (sed -e '2q' $file | egrep '^# Generated by ltmain\.sh') >/dev/null 2>&1; then :
        else
          $echo "$modename: \`$file' is not a valid libtool archive" 1>&2
          $echo "$help" 1>&2
          exit 1
        fi