xnu-517.3.15.tar.gz

[apple/xnu.git] / bsd / sys / unistd.h

diff --git a/bsd/sys/unistd.h b/bsd/sys/unistd.h
index 00199aa57d8516fc27d95feb8194089f6df9bbaa..ed404148d574085f7c3f232394e0e73d3b0fbae5 100644 (file)
--- a/bsd/sys/unistd.h
+++ b/bsd/sys/unistd.h
@@ -131,36 +131,10 @@
 #define        _PC_CASE_PRESERVING              12
 #endif
 
-/* configurable system variables */
-#define        _SC_ARG_MAX              1
-#define        _SC_CHILD_MAX            2
-#define        _SC_CLK_TCK              3
-#define        _SC_NGROUPS_MAX          4
-#define        _SC_OPEN_MAX             5
-#define        _SC_JOB_CONTROL          6
-#define        _SC_SAVED_IDS            7
-#define        _SC_VERSION              8
-#define        _SC_BC_BASE_MAX          9
-#define        _SC_BC_DIM_MAX          10
-#define        _SC_BC_SCALE_MAX        11
-#define        _SC_BC_STRING_MAX       12
-#define        _SC_COLL_WEIGHTS_MAX    13
-#define        _SC_EXPR_NEST_MAX       14
-#define        _SC_LINE_MAX            15
-#define        _SC_RE_DUP_MAX          16
-#define        _SC_2_VERSION           17
-#define        _SC_2_C_BIND            18
-#define        _SC_2_C_DEV             19
-#define        _SC_2_CHAR_TERM         20
-#define        _SC_2_FORT_DEV          21
-#define        _SC_2_FORT_RUN          22
-#define        _SC_2_LOCALEDEF         23
-#define        _SC_2_SW_DEV            24
-#define        _SC_2_UPE               25
-#define        _SC_STREAM_MAX          26
-#define        _SC_TZNAME_MAX          27
-
 /* configurable system strings */
 #define        _CS_PATH                 1
 
+/* async IO support */
+#define _POSIX_ASYNCHRONOUS_IO
+
 #endif /* !_SYS_UNISTD_H_ */