With Getopt::Long 2.25, I get the results I expect.

• The argument after -lib (the string 1.0) is assigned to $opt_lib (i.e. $opt_lib = "1.0";).

• The argument after -cell (the string -a) is assigned to $opt_cell (i.e. $opt_cell = "-a";).

• Unrecognized parameter -f remains in @ARGV (i.e. @ARGV = ("-f");).

• exit didn't get executed. There was no error except the unrecognized parameter -f, but pass_through allows that.

What results are you expecting?

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