There's actually two directories that need to be added to @INC, the one that allows it to locate the .pm, and the one that allows it to locate the .so. The following will add both: 

use FindBin qw( $RealBin );
use lib "$RealBin/../lib_ext";

[download]

(This also removes assumption that the PWD is the directory containing the script.)

In reply to Re: Using a different module version than the one installed by ikegami
in thread Using a different module version than the one installed by soso_ynak

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