Currently IPC_INFO is defined whenever we include sys/sem.h, but struct seminfo, which is returned by semctl(IPC_INFO) is defined only for _KERNEL applications. This inconsistency breaks, for instance, libmudflap builds. I believe there's no point to have IPC_INFO in non-_KERNEL application
as long as we can't get semctl(IPC_INFO) results right anyway. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ What is the author trying to tell me here?!?
I was unclear here, probably. I meant that "userspace application", i.e. application which includes sys/sem.h but don't define _KERNEL, may call semctl(IPC_INFO), but result of this call will have no meaning for application since it can't interpret it.
So by "we" in underscored sentence i meant "userspace", non-system ipc application.
egor
