Your package htdig failed to build from source in current rawhide. http://koji.fedoraproject.org/koji/taskinfo?taskID=12823121 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_24_Mass_Rebuild
Created attachment 1124933 [details] build.log
Created attachment 1124934 [details] root.log
Created attachment 1124935 [details] state.log
Created attachment 1126961 [details] patch to address this issue This package's sources suffer old age and c++14 compatibility issues. Immediate trigger of the FTBFS is c++ having become stricter on "narrowing" (implicit unsigned char -> "signed char" casts). A what I consider to a be pretty obvious patch, is in the attachment (patch against git master). Unless somebody objects, I'd apply it in near future.
Patch applied, package rebuilt for rawhide: https://koji.fedoraproject.org/koji/taskinfo?taskID=13001888