v8: compile with __C99FEATURES__=1 on sunos
v8: compile with __C99FEATURES__=1 on sunos

Exposes INFINITY, isinf(), isfinite(), etc.

dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node,dreamllq/node