Gentoo's Bugzilla –
Attachment 842919 Details for
Bug 886169sci-geosciences/gmt-6.4.0 fails to compile (CLANG-STRICTER-SYSTEM): common_sighandler.c:190:73: error: call to undeclared function strsignal; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]