It works here: 
[~] perl -v | grep built
This is perl, v5.10.1 (*) built for i686-cygwin-thread-multi-64int
[~] perl -MGetopt::Long::Descriptive -E'say$Getopt::Long::Descriptive:
+:VERSION'
0.087
[~] perl -MParams::Validate -E'say$Params::Validate::VERSION'
0.95
[~] perl -c 877988.pl
877988.pl syntax OK
[~] perl 877988.pl
[~] perl 877988.pl --help
my-program [-psv] [long options...] <some-arg>
        -s --server     the server to connect to
        -p --port       the port to connect to

        -v --verbose    print extra stuff
        --help          print usage message and exit
[~]

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In reply to Re^2: script fails but succeeds in debugger by Anonymous Monk
in thread script fails but succeeds in debugger by codeacrobat

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