I am having this issue also and libidn is installed as is idna.h. However, I suspect that there is a version clash as following the suggestion to point to the correct include directory gives a heap of other errors: mainly to do with unknown types. What version of libidn does Net::LibIDN require?

In reply to Re^2: Net::LibIDN Install Failure by Anonymous Monk
in thread Net::LibIDN Install Failure by fochi

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