As in summary. idn? ( net-dns/libidn2 ) dependency is insufficent due to fact it could libidn2-0.x which is when installed, will make lftp to fail Reproducible: Always Steps to Reproduce: 1. have libidn2-0.16 installed 2. emerge =lftp-4.8.1 3. notice failure. Actual Results: misc.cc: In function ‘const char* xidna_to_ascii(const char*)’: misc.cc:1042:53: error: ‘idn2_to_ascii_lz’ was not declared in this scope if(idn2_to_ascii_lz(name,name_ace_tmp.buf_ptr(),0)==IDN2_OK) { ^ idn2_to_ascii_lz is the new symbol added in libdidn2-2.0.0. lftp should depend on this version at least. https://www.mankier.com/3/idn2_to_ascii_lz
commit 7e8349388eb7acc6a0536c863f5639ffae8efffc Author: Jeroen Roovers <jer@gentoo.org> Date: Mon Oct 23 20:28:05 2017 +0200 net-dns/libidn2: Old. Package-Manager: Portage-2.3.12, Repoman-2.3.3