Created attachment 367822 [details, diff] gnutls-idn-use-flag.patch gnutls has a configure option called --disable-crywrap that, when not given, automagically depends on libidn. Attached is a patch that adds the idn USE flag although you may want to choose/add a flag more suited to the crywrap feature.
Which versions of gnutls, pray tell? Only 3.2.8? 3.2.x?
I've checked and found it in 3.2.7 and 3.2.8 but not 2.12.23.
Fixed in 3.2.10.