ltmain.sh

优化后的JIF/JPEG压缩文件解码器

            IFS="$save_ifs"
            $show "$cmd"
            $run eval "$cmd" || exit $?
          done
          IFS="$save_ifs"
        fi

        # Install the pseudo-library for information purposes.
        name=`$echo "X$file" | $Xsed -e 's%^.*/%%'`
        $show "$install_prog $file $destdir/$name"
        $run eval "$install_prog $file $destdir/$name" || exit $?

        # Maybe install the static library, too.
        test -n "$old_library" && staticlibs="$staticlibs $dir/$old_library"
        ;;

      *.lo)
        # Install (i.e. copy) a libtool object.

        # Figure out destination file name, if it wasn't already specified.
        if test -n "$destname"; then
          destfile="$destdir/$destname"
        else
          destfile=`$echo "X$file" | $Xsed -e 's%^.*/%%'`
          destfile="$destdir/$destfile"
        fi

        # Deduce the name of the destination old-style object file.
        case "$destfile" in
        *.lo)
          staticdest=`$echo "X$destfile" | $Xsed -e 's/\.lo$/\.o/'`
          ;;
        *.o)
          staticdest="$destfile"
          destfile=
          ;;
        *)
          $echo "$modename: cannot copy a libtool object to \`$destfile'" 1>&2
          $echo "$help" 1>&2
          exit 1
          ;;
        esac

        # Install the libtool object if requested.
        if test -n "$destfile"; then
          $show "$install_prog $file $destfile"
          $run eval "$install_prog $file $destfile" || exit $?
        fi

        # Install the old object if enabled.
        if test "$build_old_libs" = yes; then
          # Deduce the name of the old-style object file.
          staticobj=`$echo "X$file" | $Xsed -e 's/\.lo$/\.o/'`

          $show "$install_prog $staticobj $staticdest"
          $run eval "$install_prog \$staticobj \$staticdest" || exit $?
        fi
        exit 0
        ;;

      *)
        # Do a test to see if this is really a libtool program.
        if (sed -e '4q' $file | egrep '^# Generated by ltmain\.sh') >/dev/null 2>&1; then
          link_against_libtool_libs=
          finalize_command=

          # If there is no directory component, then add one.
          case "$file" in
          */* | *\\*) . $file ;;
          *) . ./$file ;;
          esac

          # Check the variables that should have been set.
          if test -z "$link_against_libtool_libs" || test -z "$finalize_command"; then
            $echo "$modename: invalid libtool wrapper script \`$file'" 1>&2
            exit 1
          fi

          finalize=yes
          for lib in $link_against_libtool_libs; do
            # Check to see that each library is installed.
            libdir=
            if test -f "$lib"; then
              # If there is no directory component, then add one.
              case "$lib" in
              */* | *\\*) . $lib ;;
              *) . ./$lib ;;
              esac
            fi
            libfile="$libdir/`$echo "X$lib" | $Xsed -e 's%^.*/%%g'`"
            if test -z "$libdir"; then
              $echo "$modename: warning: \`$lib' contains no -rpath information" 1>&2
            elif test -f "$libfile"; then :
            else
              $echo "$modename: warning: \`$lib' has not been installed in \`$libdir'" 1>&2
              finalize=no
            fi
          done

          if test "$hardcode_action" = relink; then
            if test "$finalize" = yes; then
              $echo "$modename: warning: relinking \`$file' on behalf of your buggy system linker" 1>&2
              $show "$finalize_command"
              if $run eval "$finalize_command"; then :
              else
                $echo "$modename: error: relink \`$file' with the above command before installing it" 1>&2
                continue
              fi
              file="$objdir/$file"T
            else
              $echo "$modename: warning: cannot relink \`$file' on behalf of your buggy system linker" 1>&2
            fi
          else
            # Install the binary that we compiled earlier.
	    file=`$echo "X$file" | $Xsed -e "s%\([^/]*\)$%$objdir/\1%"`
          fi
        fi

        $show "$install_prog$stripme $file $dest"
        $run eval "$install_prog\$stripme \$file \$dest" || exit $?
        ;;
      esac
    done

    for file in $staticlibs; do
      name=`$echo "X$file" | $Xsed -e 's%^.*/%%'`

      # Set up the ranlib parameters.
      oldlib="$destdir/$name"

      $show "$install_prog $file $oldlib"
      $run eval "$install_prog \$file \$oldlib" || exit $?

      # Do each command in the postinstall commands.
      eval cmds=\"$old_postinstall_cmds\"
      IFS="${IFS= 	}"; save_ifs="$IFS"; IFS=';'
      for cmd in $cmds; do
        IFS="$save_ifs"
        $show "$cmd"
        $run eval "$cmd" || exit $?
      done
      IFS="$save_ifs"
    done

    if test -n "$future_libdirs"; then
      $echo "$modename: warning: remember to run \`$progname --finish$future_libdirs'" 1>&2
    fi

    if test -n "$current_libdirs"; then
      # Maybe just do a dry run.
      test -n "$run" && current_libdirs=" -n$current_libdirs"
      exec $SHELL $0 --finish$current_libdirs
      exit 1
    fi

    exit 0
    ;;

  # libtool finish mode
  finish)
    modename="$modename: finish"
    libdirs="$nonopt"

    if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then
      for dir
      do
        libdirs="$libdirs $dir"
      done

      for libdir in $libdirs; do
	if test -n "$finish_cmds"; then
	  # Do each command in the finish commands.
	  eval cmds=\"$finish_cmds\"
          IFS="${IFS= 	}"; save_ifs="$IFS"; IFS=';'
          for cmd in $cmds; do
            IFS="$save_ifs"
            $show "$cmd"
            $run eval "$cmd"
          done
          IFS="$save_ifs"
	fi
	if test -n "$finish_eval"; then
	  # Do the single finish_eval.
	  eval cmds=\"$finish_eval\"
	  $run eval "$cmds"
	fi
      done
    fi

    echo "------------------------------------------------------------------------------"
    echo "Libraries have been installed in:"
    for libdir in $libdirs; do
      echo "   $libdir"
    done
    echo
    echo "To link against installed libraries in a given directory, LIBDIR,"
    echo "you must use the \`-LLIBDIR' flag during linking."
    echo
    echo " You will also need to do one of the following:"
    if test -n "$shlibpath_var"; then
      echo "   - add LIBDIR to the \`$shlibpath_var' environment variable"
      echo "     during execution"
    fi
    if test -n "$runpath_var"; then
      echo "   - add LIBDIR to the \`$runpath_var' environment variable"
      echo "     during linking"
    fi
    if test -n "$hardcode_libdir_flag_spec"; then
      libdir=LIBDIR
      eval flag=\"$hardcode_libdir_flag_spec\"

      echo "   - use the \`$flag' linker flag"
    fi
    if test -f /etc/ld.so.conf; then
      echo "   - have your system administrator add LIBDIR to \`/etc/ld.so.conf'"
    fi
    echo
    echo "See any operating system documentation about shared libraries for"
    echo "more information, such as the ld(1) and ld.so(8) manual pages."
    echo "------------------------------------------------------------------------------"
    exit 0
    ;;

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

    # The first argument is the command name.
    cmd="$nonopt"
    if test -z "$cmd"; then
      $echo "$modename: you must specify a COMMAND" 1>&2
      $echo "$help"
      exit 1
    fi

    # Handle -dlopen flags immediately.
    for file in $execute_dlfiles; do
      if test -f "$file"; then :
      else
	$echo "$modename: \`$file' is not a file" 1>&2
	$echo "$help" 1>&2
	exit 1
      fi

      dir=
      case "$file" in
      *.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: \`$lib' is not a valid libtool archive" 1>&2
          $echo "$help" 1>&2
          exit 1
        fi

	# Read the libtool library.
	dlname=
	library_names=

        # If there is no directory component, then add one.
	case "$file" in
	*/* | *\\*) . $file ;;
        *) . ./$file ;;
	esac

	# Skip this library if it cannot be dlopened.
	if test -z "$dlname"; then
	  # Warn if it was a shared library.
	  test -n "$library_names" && $echo "$modename: warning: \`$file' was not linked with \`-export-dynamic'"
	  continue
	fi

	dir=`$echo "X$file" | $Xsed -e 's%/[^/]*$%%'`
	test "X$dir" = "X$file" && dir=.

	if test -f "$dir/$objdir/$dlname"; then
	  dir="$dir/$objdir"
	else
	  $echo "$modename: cannot find \`$dlname' in \`$dir' or \`$dir/$objdir'" 1>&2
	  exit 1
	fi
	;;

      *.lo)
	# Just add the directory containing the .lo file.
	dir=`$echo "X$file" | $Xsed -e 's%/[^/]*$%%'`
	test "X$dir" = "X$file" && dir=.
	;;

      *)
	$echo "$modename: warning \`-dlopen' is ignored for non-libtool libraries and objects" 1>&2
        continue
	;;
      esac

      # Get the absolute pathname.
      absdir=`cd "$dir" && pwd`
      test -n "$absdir" && dir="$absdir"

      # Now add the directory to shlibpath_var.
      if eval "test -z \"\$$shlibpath_var\""; then
	eval "$shlibpath_var=\"\$dir\""
      else
	eval "$shlibpath_var=\"\$dir:\$$shlibpath_var\""
      fi
    done

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

    # Check if any of the arguments is a wrapper script.
    args=
    for file
    do
      case "$file" in
      -*) ;;
      *)
        # Do a test to see if this is really a libtool program.
        if (sed -e '4q' $file | egrep '^# Generated by ltmain\.sh') >/dev/null 2>&1; then
	  # If there is no directory component, then add one.
	  case "$file" in
	  */* | *\\*) . $file ;;
	  *) . ./$file ;;
	  esac

	  # Transform arg to wrapped name.
	  file="$progdir/$program"
	fi
        ;;
      esac
      # Quote arguments (to preserve shell metacharacters).
      file=`$echo "X$file" | $Xsed -e "$sed_quote_subst"`
      args="$args \"$file\""
    done

    if test -z "$run"; then
      # Export the shlibpath_var.
      eval "export $shlibpath_var"

      # Now actually exec the command.
      eval "exec \$cmd$args"

      $echo "$modename: cannot exec \$cmd$args"
      exit 1
    else
      # Display what would be done.
      eval "\$echo \"\$shlibpath_var=\$$shlibpath_var\""
      $echo "export $shlibpath_var"
      $echo "$cmd$args"
      exit 0
    fi
    ;;

  # libtool uninstall mode
  uninstall)
    modename="$modename: uninstall"
    rm="$nonopt"
    files=

    for arg
    do
      case "$arg" in
      -*) rm="$rm $arg" ;;
      *) files="$files $arg" ;;
      esac
    done

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

    for file in $files; do
      dir=`$echo "X$file" | $Xsed -e 's%/[^/]*$%%'`
      test "X$dir" = "X$file" && dir=.
      name=`$echo "X$file" | $Xsed -e 's%^.*/%%'`

      rmfiles="$file"

      case "$name" in
      *.la)
        # Possibly a libtool archive, so verify it.
        if (sed -e '2q' $file | egrep '^# Generated by ltmain\.sh') >/dev/null 2>&1; then
          . $dir/$name

          # Delete the libtool libraries and symlinks.
          for n in $library_names; do
            rmfiles="$rmfiles $dir/$n"
            test "X$n" = "X$dlname" && dlname=
          done
          test -n "$dlname" && rmfiles="$rmfiles $dir/$dlname"
          test -n "$old_library" && rmfiles="$rmfiles $dir/$old_library"

	  $show "$rm $rmfiles"
	  $run $rm $rmfiles

	  if test -n "$library_names"; then
	    # Do each command in the postuninstall commands.
	    eval cmds=\"$postuninstall_cmds\"
	    IFS="${IFS= 	}"; save_ifs="$IFS"; IFS=';'
	    for cmd in $cmds; do
	      IFS="$save_ifs"
	      $show "$cmd"
	      $run eval "$cmd"
	    done
	    IFS="$save_ifs"
	  fi

          if test -n "$old_library"; then
	    # Do each command in the old_postuninstall commands.
	    eval cmds=\"$old_postuninstall_cmds\"
	    IFS="${IFS= 	}"; save_ifs="$IFS"; IFS=';'
	    for cmd in $cmds; do
	      IFS="$save_ifs"
	      $show "$cmd"
	      $run eval "$cmd"
	    done
	    IFS="$save_ifs"
	  fi

          # FIXME: should reinstall the best remaining shared library.
        fi
        ;;

      *.lo)
        if test "$build_old_libs" = yes; then
          oldobj=`$echo "X$name" | $Xsed -e 's/\.lo$/\.o/'`
          rmfiles="$rmfiles $dir/$oldobj"
        fi
	$show "$rm $rmfiles"
	$run $rm $rmfiles
        ;;

      *)
      	$show "$rm $rmfiles"
	$run $rm $rmfiles
	;;
      esac
    done
    exit 0
    ;;

  "")
    $echo "$modename: you must specify a MODE" 1>&2
    $echo "$generic_help" 1>&2
    exit 1
    ;;
  esac

  $echo "$modename: invalid operation mode \`$mode'" 1>&2
  $echo "$generic_help" 1>&2
  exit 1
fi # test -z "$show_help"

# We need to display help for each of the modes.
case "$mode" in