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Re: [PATCH/libiberty] Add missing <sys/types.h> in unlink-if-ordinary.c
> <sys/types.h> is not an ISO C header file. But it is in POSIX.1.
> And it is available on every Unix system. Because of that, it is
> available on every Unix workalike system.
Right, but the machines that wouldn't have it, probably would have K&R
compilers anyway. We haven't had a problem using it unprotected so
far, and there's even less reason to worry about it now.