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file.c: fix compile error with MacPorts gcc

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With the SDK of Xcode 10.2.1, `API_AVAILABLE` and so on macros are
not defined in <os/availability.h> when using a compiler other
than clang (which has `__has_feature` and `__has_attribute`), but
`__API_AVAILABLE` macro and so on are defined, which are also
defined in <Availability.h>.

I suspect this is a bug of the SDK.
This commit is contained in:
Nobuyoshi Nakada 2019-06-08 19:40:55 +09:00
parent 5a840517ae
commit 27a59ca2c8
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1 changed files with 8 additions and 0 deletions
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file.c
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@ -20,6 +20,14 @@
#include <wchar.h>
#endif
#ifdef __APPLE__
# if !(defined(__has_feature) && defined(__has_attribute))
/* Maybe a bug in SDK of Xcode 10.2.1 */
/* In this condition, <os/availability.h> does not define
* API_AVAILABLE and similar, but __API_AVAILABLE and similar which
* are defined in <Availability.h> */
# define API_AVAILABLE(...)
# define API_DEPRECATED(...)
# endif
#include <CoreFoundation/CFString.h>
#endif