System.Data.SQLite

        catch {
          object invoke -flags +NonPublic Interpreter.GetActive \
              EndNoArgumentCache savedCacheFlags
        }
      }
    }

    if {![interp issafe]} then {
      #
      # NOTE: This is the [unknown] command for Eagle.  It will normally be
      #       executed by the script engine when a command is not found.
      #       By default, it will simply raise a script error; however, if
      #       the "eagleUnknownObjectInvoke" runtime option is set, it will
      #       first attempt to use the (unknown) command name as the name
      #       of a CLR type.
      #
      # <create>
      proc unknown { name args } {
        #
        # NOTE: This is an [unknown] procedure that normally produces an
        #       appropriate error message; however, it can optionally try
        #       to invoke a static object method.
        #
        # TODO: Add support for auto-loading packages here in the future?
        #
        if {[llength [info commands hasRuntimeOption]] > 0 && \
            [hasRuntimeOption eagleUnknownObjectInvoke] && \
            [llength [info commands object]] > 0 && \
            [llength [info commands unknownObjectInvoke]] > 0} then {
          #
          # NOTE: In the context of the caller, attempt to invoke a static
          #       object method using the specified arguments (which may
          #       contain variable names).
          #
          if {[catch {
            eval unknownObjectInvoke 1 [list $name] $args
          } result] == 0} then {
            #
            # NOTE: The static object method was invoked successfully.
            #       Return its result.
            #
            return -code ok $result
          } elseif {[string length $result] > 0} then {
            #
            # NOTE: Attempting to invoke the static object method raised
            #       an error.  Re-raise it now.  If no error message was
            #       provided, fallback on the default (below).
            #
            return -code error $result
          }
        }

        return -code error [appendArgs "invalid command name \"" $name \"]
      }
    } else {
      #
      # NOTE: This is the [unknown] command for Eagle.  It will normally be
      #       executed by the script engine when a command is not found.
      #       It will simply raise a script error.  This procedure is also
      #       defined in "safe.eagle".
      #
      # <create>
      proc unknown { name args } {
        #
        # NOTE: This is an [unknown] procedure that produces an appropriate
        #       error message.
        #
        # TODO: Add support for auto-loading packages here in the future?
        #
        # NOTE: This command cannot use [appendArgs] because that procedure
        #       is defined in another file that is never loaded into "safe"
        #       interpreters.
        #
        return -code error "invalid command name \"$name\""
      }
    }

    #
    # NOTE: This namespace and the procedure defined within it are used for
    #       compatibility with native Tcl.
    #
    namespace eval ::tcl::tm {


  #
  # NOTE: This procedure returns a string obtained by using the specified
  #       value as an opaque object handle -OR- a default value (e.g. an
  #       empty string) if the value is not a valid opaque object handle.
  #
  proc getStringFromObjectHandle { value {default ""} } {
    global null

    if {[isObjectHandle $value] && $value ne $null} then {
      return [object invoke $value ToString]
    }

    if {[string length $default] > 0} then {
      return $default
    }

    #
    # NOTE: If requested, run the garbage collector now.  This may be
    #       necessary to successfully wait for processes that are being
    #       kept alive via runtime callable wrappers for out-of-process
    #       COM servers (e.g. Excel).
    #
    if {$collect} then {
      debug collect
    }

    #
    # NOTE: Wait for each process in the list to exit.
    #
    foreach id $ids {
      #

    # <create>
    proc unknown { name args } {
      #
      # NOTE: This is an [unknown] procedure that produces an appropriate
      #       error message.
      #
      # TODO: Add support for auto-loading packages here in the future?
      #
      # NOTE: This command cannot use [appendArgs] because that procedure
      #       is defined in another file that is never loaded into "safe"
      #       interpreters.
      #
      return -code error "invalid command name \"$name\""
    }

    #
    # NOTE: This namespace and the procedure defined within it are used for
    #       compatibility with native Tcl.

          lappend result $name
        }
      }
    }

    return $result
  }

  proc getCachedConstraints {} {
    if {[info exists ::test_constraints] && \
        [llength $::test_constraints] > 0} then {
      return $::test_constraints
    }

    return [getConstraints]
  }

  proc useCachedConstraints {} {
    foreach name [getCachedConstraints] {
      addConstraint $name
    }
  }

  proc removeConstraint { name } {
    if {[isEagle]} then {
      if {[info exists ::eagle_tests(Constraints)]} then {
        set index [lsearch -exact $::eagle_tests(Constraints) $name]

        if {$index != -1} then {

          "---- HelpOps cleanup results: " $result \n]

      catch {uplevel 1 [list object invoke -flags +NonPublic \
          Eagle._Components.Private.StringOps ClearPreambleEncodings]} result

      tputs $channel [appendArgs \
          "---- StringOps cleanup results: " $result \n]

      catch {uplevel 1 [list object invoke -flags +NonPublic \
          Eagle._Comparers.FileName ClearCache]} result

      tputs $channel [appendArgs \
          "---- Comparers.FileName cleanup results: " $result \n]
    }

    proc evalWithTimeout { script {milliseconds 2000} {resultVarName ""} } {
      #
      # NOTE: Verify that the number of milliseconds requested is greater than
      #       zero.
      #

    #
    # NOTE: We need several of our test related commands in the global
    #       namespace as well.
    #
    exportAndImportPackageCommands [namespace current] [list \
        tputs ttclLog tlog getSoftwareRegistryKey haveConstraint \
        addConstraint haveOrAddConstraint getConstraints \
        getCachedConstraints useCachedConstraints removeConstraint \
        fixConstraints fixTimingConstraints calculateBogoCops \
        calculateRelativePerformance formatTimeStamp formatElapsedTime \
        sourceIfValid processTestArguments getTclShellFileName \
        getTemporaryPath getFiles getTestFiles getTestRunId getTestLogId \
        getDefaultTestLog getTestLog getLastTestLog getTestSuite \
        getTestMachine getTestPlatform getTestConfiguration getTestSuffix \
        getTestUncountedLeaks getTestAssemblyName canTestExec testExec \

    #       the Mono runtime is released.
    #
    if {$force || ![info exists ::no(monoVersions)]} then {
      return [list \
          [list 2 0] [list 2 2] [list 2 4] [list 2 6] [list 2 8] [list 2 10] \
          [list 2 11] [list 3 0] [list 3 1] [list 3 2] [list 3 4] [list 3 6] \
          [list 3 8] [list 3 10] [list 3 12] [list 4 0] [list 4 2] [list 4 4] \
          [list 4 6] [list 4 8] [list 5 0]]
    } else {
      return [list]
    }
  }

  proc addKnownMonoConstraints { generic } {
    #

  if {![info exists test_package_path]} then {
    set test_package_path [file join $base_path lib]
  }

  #
  # NOTE: Make sure our primary package path is part of the auto-path.
  #
  if {[info exists auto_path] && \
      [lsearch -exact $auto_path $test_package_path] == -1} then {
    lappend auto_path $test_package_path
  }

  #
  # NOTE: Make sure the test suite package is part of the auto-path.
  #
  if {[info exists auto_path] && \
      [lsearch -exact $auto_path $test_all_path] == -1} then {
    lappend auto_path $test_all_path
  }

  #
  # NOTE: Make sure the test suite is part of the auto-path.  This is
  #       now done for legacy compatibility only.
  #
  if {[info exists auto_path] && \
      [lsearch -exact $auto_path $test_path] == -1} then {
    lappend auto_path $test_path
  }

  #############################################################################

  #
  # NOTE: Check for and load the Eagle library package, if necessary.

        #
        # NOTE: For tests "object-3.12" and "object-3.13".
        #
        checkForObjectMember $test_channel Eagle._Tests.Default \
            *TestStringIDictionaryReturnValue*

        #
        # NOTE: For tests "object-3.14" and "object-3.15".
        #
        checkForObjectMember $test_channel Eagle._Tests.Default \
            *TestReturnOfSelf*

        #
        # NOTE: For test "object-4.1".
        #
        checkForObjectMember $test_channel Eagle._Tests.Default \
            *TestExpr*

        #

  # NOTE: Check for network connectivity to our test host (i.e.
  #       the Eagle distribution site).
  #
  if {![info exists no(core)] && ![info exists no(network)]} then {
    checkForNetwork $test_channel $test_host $test_timeout
  }

  #############################################################################

  #
  # NOTE: Figure out the approximate relative performance of this machine.
  #
  if {![info exists no(bogoCops)] && [haveConstraint performance]} then {
    tputs $test_channel \
        "---- checking for baseline BogoCops (commands-per-second)... "

        "---- current BogoCops (commands-per-second) is " [formatDecimal \
        [expr {$percent > 100 ? $percent - 100 : $percent}] 2] "% " \
        [expr {$percent > 100 ? "faster than" : "as fast as"}] \
        " the baseline\n"]

    unset percent
  }

  #############################################################################

  #
  # NOTE: The test constraints should now be fully built, cache them.
  #
  if {![info exists test_constraints]} then {
    set test_constraints [getConstraints]
  }

  #############################################################################
  ######################## END Eagle & Tcl Constraints ########################
  #############################################################################

  #
  # NOTE: For Eagle, dump the platform information, including the compile
  #       options.
  #
  if {[isEagle]} then {
    set timeStamp [getPlatformInfo timeStamp ""]

    if {[string length $timeStamp] > 0} then {
      #########################################################################
      # MONO: Bug, see: https://bugzilla.novell.com/show_bug.cgi?id=479061

  # NOTE: Show the current test file name, if any.
  #
  tputs $test_channel [appendArgs "---- test file: " \
      [expr {[info exists test_file] && [string length $test_file] > 0 ? \
      $test_file : "<none>"}] \n]

  #
  # NOTE: Show the active and cached test constraints.
  #
  tputs $test_channel [appendArgs "---- active constraints: " \
      [formatList [lsort [getConstraints]] <none>] \n]

  tputs $test_channel [appendArgs "---- cached constraints: " \
      [formatList [lsort [getCachedConstraints]] <none>] \n]

  #
  # NOTE: Show the starting command count (for both Tcl and Eagle).
  #
  tputs $test_channel [appendArgs "---- starting command count: " \
      [info cmdcount] \n]