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> #include <sys/_posix.h>
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< #if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
---
> /* XXX I'm not sure if _ANSI_SOURCE is playing properly
> * with the setups in _posix.h:
> */
> #if !defined(_ANSI_SOURCE) && defined(_P1003_1B_VISIBLE_HISTORICALLY)
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> #endif /* neither ANSI nor POSIX */
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> #if !defined(_ANSI_SOURCE) && defined(_P1003_1B_VISIBLE_HISTORICALLY)