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mdbx: add MDBX_WEAK_IMPORT_ATTRIBUTE macro.

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Леонид Юрьев (Leonid Yuriev) 2022-08-08 15:06:27 +03:00
parent f0a46da6a5
commit dd01aabaeb
1 changed files with 13 additions and 0 deletions
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13
src/base.h
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@ -611,6 +611,19 @@ __extern_C key_t ftok(const char *, int);
#endif
#endif /* __anonymous_struct_extension__ */
#ifndef MDBX_WEAK_IMPORT_ATTRIBUTE
#ifdef WEAK_IMPORT_ATTRIBUTE
#define MDBX_WEAK_IMPORT_ATTRIBUTE WEAK_IMPORT_ATTRIBUTE
#elif __has_attribute(__weak__) && __has_attribute(__weak_import__)
#define MDBX_WEAK_IMPORT_ATTRIBUTE __attribute__((__weak__, __weak_import__))
#elif __has_attribute(__weak__) || \
(defined(__GNUC__) && __GNUC__ >= 4 && defined(__ELF__))
#define MDBX_WEAK_IMPORT_ATTRIBUTE __attribute__((__weak__))
#else
#define MDBX_WEAK_IMPORT_ATTRIBUTE
#endif
#endif /* MDBX_WEAK_IMPORT_ATTRIBUTE */
/*----------------------------------------------------------------------------*/
#if defined(MDBX_USE_VALGRIND)