[172166] Admin Util build (64-bit)
    1) nsarch does not run well since the output of 'ld --help' did not match the
    given regular expression.
    2) added "_64" to the NSCONFIG macro to pick up the mozilla components.
    3) added version number to the ident string
    4) replaced 'perl <perlprogram>' with '/usr/bin/env perl <perlprogram>'
    5) cleaned up warning message from gcc