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+# findBadExternals.tcl --
+#
+# This script scans the Tcl load library for exported symbols
+# that do not begin with 'Tcl' or 'tcl'. It reports them on the
+# standard output. It is used to make sure that the library does
+# not inadvertently export externals that may be in conflict with
+# other code.
+#
+# Usage:
+#
+# tclsh findBadExternals.tcl /path/to/tclXX.so-or-.dll
+#
+# Copyright (c) 2005 George Peter Staplin and Kevin Kenny
+#
+# See the file "license.terms" for information on usage and redistribution
+# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+#
+# RCS: @(#) $Id: findBadExternals.tcl,v 1.1 2005/11/04 19:37:57 kennykb Exp $
+#
+#----------------------------------------------------------------------
+
+proc main {argc argv} {
+
+ if {$argc != 1} {
+ puts stderr "syntax is: [info script] libtcl"
+ return 1
+ }
+
+
+ switch -exact -- $::tcl_platform(platform) {
+ unix -
+ macosx {
+ set status [catch {
+ exec nm --extern-only --defined-only [lindex $argv 0]
+ } result]
+ }
+ windows {
+ set status [catch {
+ exec dumpbin /exports [lindex $argv 0]
+ } result]
+ }
+ }
+ if {$status != 0 && $::errorCode ne "NONE"} {
+ puts $result
+ return 1
+ }
+
+ foreach line [split $result \n] {
+ if {! [string match {* [Tt]cl*} $line]} {
+ puts $line
+ }
+ }
+
+ return 0
+}
+exit [main $::argc $::argv]