It uses the _IO macros to define various ioctl codes; it should include <sys/ioccom.h> so that code using doesn't have to include <sys/ioccom.h> itself or include something that includes <sys/ioccom.h>. <sys/ioccom.h> was not, when I originally created it in SunOS 4.0, intended to be included by .c files; it was intended to be included by headers that define ioctls.
For bugs matching the following criteria: Status: In Progress Changed: (is less than) 2014-06-01 Reset to default assignee and clear in-progress tags. Mail being skipped