34 lines
1.0 KiB
C
34 lines
1.0 KiB
C
/* features.h
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#ifndef _FEATURES_H
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#define _FEATURES_H
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#include <sys/cdefs.h>
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#include <sys/features.h>
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/* Various options should be defined here, but the framework to do this
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is not laid down so far. Especially notable are the following defines,
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which can be used by the application to switch on or off various
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datatypes and function prototypes:
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_BSD_SOURCE to include pure BSD functions which are not defined
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under POSIX.
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_POSIX_SOURCE if the application requests a POSIX compatible system.
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_XOPEN_SOURCE if X/Open functions and datatypes are requested. This
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option includes _POSIX_SOURCE.
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_GNU_SOURCE to turn on GNU extensions which might collide with defines
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used in application or library headers. This option
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includes _BSD_SOURCE, _XOPEN_SOURCE and _POSIX_SOURCE.
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*/
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#endif /* _FEATURES_H */
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