libmail: cast between incompatible function types
lib - userland libraries
Build errors with gcc 8:
../common/notifyu.c: In function 'notify': ../common/notifyu.c:80:34: error: cast between incompatible function types from 'void (* (*)(void))(int)' to 'void (*)(int)' [-Werror=cast-function-type] old = (SIG_PF)signal(SIGALRM, (SIG_PF)catcher); ^ cc1: all warnings being treated as errors
Testing done: build/install/boot.