SIGTTIN           252 native_client_sdk/src/libraries/third_party/newlib-extras/sys/signal.h #define	SIGTTIN	21	/* to readers pgrp upon background tty read */
SIGTTIN           282 native_client_sdk/src/libraries/third_party/newlib-extras/sys/signal.h #define	SIGTTIN	26	/* to readers pgrp upon background tty read */
SIGTTIN           292 native_client_sdk/src/libraries/third_party/newlib-extras/sys/signal.h #define	SIGTTIN	21	/* to readers pgrp upon background tty read */