source: downloads/tcl8.5.2/tools/findBadExternals.tcl @ 44

# 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]