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-rw-r--r--posix/unistd.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/posix/unistd.h b/posix/unistd.h
index 04fb89bc4b..f14e02d02b 100644
--- a/posix/unistd.h
+++ b/posix/unistd.h
@@ -124,6 +124,17 @@ __BEGIN_DECLS
_XOPEN_SHM Shared memory interface according to XPG4.2.
+ _XBS5_ILP32_OFF32 Implementation provides environment with 32-bit
+ int, long, pointer, and off_t types.
+ _XBS5_ILP32_OFFBIG Implementation provides environment with 32-bit
+ int, long, and pointer and off_t with at least
+ 64 bits.
+ _XBS5_LP64_OFF64 Implementation provides environment with 32-bit
+ int, and 64-bit long, pointer, and off_t types.
+ _XBS5_LPBIG_OFFBIG Implementation provides environment with at
+ least 32 bits int and long, pointer, and off_t
+ with at least 64 bits.
+
If any of these symbols is defined as -1, the corresponding option is not
true for any file. If any is defined as other than -1, the corresponding
option is true for all files. If a symbol is not defined at all, the value