Gentoo's Bugzilla –
Attachment 851076 Details for
Bug 894356app-crypt/trousers-0.3.15 fails to compile (MUSL-CLANG-SYSTEM): tspps.c:100:8: error: call to undeclared function getpwent_r; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]