BEGIN {
    my $path_to_enc_files = ...;
    $path_to_enc_files =~ s{/XML/Parser/Encodings/?\z}{};
    local @INC = ( @INC, $path_to_enc_files );
    require XML::Parser::Expat;
}

##</code><code>##

BEGIN {
    local @INC = ( @INC, $ENV{PAR_TEMP} );
    require XML::Parser::Expat;
}