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options/posix: add some more feature test macros #1528

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Nov 17, 2025
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options/posix: add some more feature test macros #1528

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11 changes: 11 additions & 0 deletions options/posix/include/unistd.h
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Original file line number Diff line number Diff line change
Expand Up @@ -37,6 +37,17 @@ extern "C" {
#define _POSIX_THREAD_SAFE_FUNCTIONS _POSIX_VERSION
#define _POSIX_MONOTONIC_CLOCK 0

/* mmap, msync, munmap */
#define _POSIX_MAPPED_FILES _POSIX_VERSION
/* mlockall, munlockall */
#define _POSIX_MEMLOCK _POSIX_VERSION
/* mlock, munlock */
#define _POSIX_MEMLOCK_RANGE _POSIX_VERSION
/* mmap, munmap, shm_open, shm_unlink */
#define _POSIX_SHARED_MEMORY_OBJECTS _POSIX_VERSION
/* open, msync, fsync, fdatasync */
#define _POSIX_SYNCHRONIZED_IO _POSIX_VERSION

/* MISSING: additional _POSIX and _XOPEN feature macros */
/* MISSING: _POSIX_TIMESTAMP_RESOLUTION and _POSIX2_SYMLINKS */

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