vmstat appears to have been fixed; my build is now breaking at
/usr/src/tests/lib/libc/gen/t_siginfo.c:
/usr/src/tests/lib/libc/gen/t_siginfo.c: In function 'sig_debug':
/usr/src/tests/lib/libc/gen/t_siginfo.c:79: warning: format '%lx' expects type
'long unsigned int', but argument 3 has type 'int'
/usr/src/tests/lib/libc/gen/t_siginfo.c:79: warning: format '%lx' expects type
'long unsigned int', but argument 3 has type 'int'
/usr/src/tests/lib/libc/gen/t_siginfo.c: In function 'sigchild_action':
/usr/src/tests/lib/libc/gen/t_siginfo.c:132: warning: format '%d' expects type
'int', but argument 2 has type 'clock_t'
/usr/src/tests/lib/libc/gen/t_siginfo.c:132: warning: format '%d' expects type
'int', but argument 2 has type 'clock_t'
/usr/src/tests/lib/libc/gen/t_siginfo.c:133: warning: format '%d' expects type
'int', but argument 2 has type 'clock_t'
/usr/src/tests/lib/libc/gen/t_siginfo.c:133: warning: format '%d' expects type
'int', but argument 2 has type 'clock_t'