Gentoo's Bugzilla –
Attachment 842639 Details for
Bug 885963net-print/mtink-1.0.16-r2 fails to compile (CLANG-STRICTER-SYSTEM): error: call to undeclared library function strncmp with type int (const char , const char , unsigned long); ISO C99 and later do not support implicit function declarations [-Werror,-Wimp