Gentoo's Bugzilla –
Attachment 886983 Details for
Bug 926461games-emulation/mednafen-1.29.0-r1 fails to compile: tests.cpp:1389:18: error: comparison between distinct pointer types off_t ()(gzFile) {aka long int ()(gzFile_s)} and off64_t ()(gzFile) {aka long long int ()(gzFile_s)} lacks a cast