HAVE_SYS_IOCTL_H   41 .ext/include/x86_64-linux/ruby/config.h #define HAVE_SYS_IOCTL_H 1
HAVE_SYS_IOCTL_H    5 ext/io/console/extconf.h #define HAVE_SYS_IOCTL_H 1
HAVE_SYS_IOCTL_H    3 ext/io/wait/extconf.h #define HAVE_SYS_IOCTL_H 1
HAVE_SYS_IOCTL_H   12 ext/socket/extconf.h #define HAVE_SYS_IOCTL_H 1