- _SC_ARG_MAX
- _SC_CHILD_MAX
- _SC_CLK_TCK
- _SC_NGROUPS_MAX
- _SC_OPEN_MAX
- _SC_STREAM_MAX
- _SC_TZNAME_MAX
- _SC_JOB_CONTROL
- _SC_SAVED_IDS
- _SC_REALTIME_SIGNALS
- _SC_PRIORITY_SCHEDULING
- _SC_TIMERS
- _SC_ASYNCHRONOUS_IO
- _SC_PRIORITIZED_IO
- _SC_SYNCHRONIZED_IO
- _SC_FSYNC
- _SC_MAPPED_FILES
- _SC_MEMLOCK
- _SC_MEMLOCK_RANGE
- _SC_MEMORY_PROTECTION
- _SC_MESSAGE_PASSING
- _SC_SEMAPHORES
- _SC_SHARED_MEMORY_OBJECTS
- _SC_AIO_LISTIO_MAX
- _SC_AIO_MAX
- _SC_AIO_PRIO_DELTA_MAX
- _SC_DELAYTIMER_MAX
- _SC_MQ_OPEN_MAX
- _SC_MQ_PRIO_MAX
- _SC_VERSION
- _SC_PAGESIZE
- _SC_RTSIG_MAX
- _SC_SEM_NSEMS_MAX
- _SC_SEM_VALUE_MAX
- _SC_SIGQUEUE_MAX
- _SC_TIMER_MAX
- _SC_BC_BASE_MAX
- _SC_BC_DIM_MAX
- _SC_BC_SCALE_MAX
- _SC_BC_STRING_MAX
- _SC_COLL_WEIGHTS_MAX
- _SC_EQUIV_CLASS_MAX
- _SC_EXPR_NEST_MAX
- _SC_LINE_MAX
- _SC_RE_DUP_MAX
- _SC_CHARCLASS_NAME_MAX
- _SC_2_VERSION
- _SC_2_C_BIND
- _SC_2_C_DEV
- _SC_2_FORT_DEV
- _SC_2_FORT_RUN
- _SC_2_SW_DEV
- _SC_2_LOCALEDEF
- _SC_PII
- _SC_PII_XTI
- _SC_PII_SOCKET
- _SC_PII_INTERNET
- _SC_PII_OSI
- _SC_POLL
- _SC_SELECT
- _SC_UIO_MAXIOV
- _SC_IOV_MAX
- _SC_PII_INTERNET_STREAM
- _SC_PII_INTERNET_DGRAM
- _SC_PII_OSI_COTS
- _SC_PII_OSI_CLTS
- _SC_PII_OSI_M
- _SC_T_IOV_MAX
- _SC_THREADS
- _SC_THREAD_SAFE_FUNCTIONS
- _SC_GETGR_R_SIZE_MAX
- _SC_GETPW_R_SIZE_MAX
- _SC_LOGIN_NAME_MAX
- _SC_TTY_NAME_MAX
- _SC_THREAD_DESTRUCTOR_ITERATIONS
- _SC_THREAD_KEYS_MAX
- _SC_THREAD_STACK_MIN
- _SC_THREAD_THREADS_MAX
- _SC_THREAD_ATTR_STACKADDR
- _SC_THREAD_ATTR_STACKSIZE
- _SC_THREAD_PRIORITY_SCHEDULING
- _SC_THREAD_PRIO_INHERIT
- _SC_THREAD_PRIO_PROTECT
- _SC_THREAD_PROCESS_SHARED
- _SC_NPROCESSORS_CONF
- _SC_NPROCESSORS_ONLN
- _SC_PHYS_PAGES
- _SC_AVPHYS_PAGES
- _SC_ATEXIT_MAX
- _SC_PASS_MAX
- _SC_XOPEN_VERSION
- _SC_XOPEN_XCU_VERSION
- _SC_XOPEN_UNIX
- _SC_XOPEN_CRYPT
- _SC_XOPEN_ENH_I18N
- _SC_XOPEN_SHM
- _SC_2_CHAR_TERM
- _SC_2_C_VERSION
- _SC_2_UPE
- _SC_XOPEN_XPG2
- _SC_XOPEN_XPG3
- _SC_XOPEN_XPG4
- _SC_CHAR_BIT
- _SC_CHAR_MAX
- _SC_CHAR_MIN
- _SC_INT_MAX
- _SC_INT_MIN
- _SC_LONG_BIT
- _SC_WORD_BIT
- _SC_MB_LEN_MAX
- _SC_NZERO
- _SC_SSIZE_MAX
- _SC_SCHAR_MAX
- _SC_SCHAR_MIN
- _SC_SHRT_MAX
- _SC_SHRT_MIN
- _SC_UCHAR_MAX
- _SC_UINT_MAX
- _SC_ULONG_MAX
- _SC_USHRT_MAX
- _SC_NL_ARGMAX
- _SC_NL_LANGMAX
- _SC_NL_MSGMAX
- _SC_NL_NMAX
- _SC_NL_SETMAX
- _SC_NL_TEXTMAX
- _SC_XBS5_ILP32_OFF32
- _SC_XBS5_ILP32_OFFBIG
- _SC_XBS5_LP64_OFF64
- _SC_XBS5_LPBIG_OFFBIG
- _SC_XOPEN_LEGACY
- _SC_XOPEN_REALTIME
- _SC_XOPEN_REALTIME_THREADS
- _SC_ADVISORY_INFO
- _SC_BARRIERS
- _SC_BASE
- _SC_C_LANG_SUPPORT
- _SC_C_LANG_SUPPORT_R
- _SC_CLOCK_SELECTION
- _SC_CPUTIME
- _SC_THREAD_CPUTIME
- _SC_DEVICE_IO
- _SC_DEVICE_SPECIFIC
- _SC_DEVICE_SPECIFIC_R
- _SC_FD_MGMT
- _SC_FIFO
- _SC_PIPE
- _SC_FILE_ATTRIBUTES
- _SC_FILE_LOCKING
- _SC_FILE_SYSTEM
- _SC_MONOTONIC_CLOCK
- _SC_MULTI_PROCESS
- _SC_SINGLE_PROCESS
- _SC_NETWORKING
- _SC_READER_WRITER_LOCKS
- _SC_SPIN_LOCKS
- _SC_REGEXP
- _SC_REGEX_VERSION
- _SC_SHELL
- _SC_SIGNALS
- _SC_SPAWN
- _SC_SPORADIC_SERVER
- _SC_THREAD_SPORADIC_SERVER
- _SC_SYSTEM_DATABASE
- _SC_SYSTEM_DATABASE_R
- _SC_TIMEOUTS
- _SC_TYPED_MEMORY_OBJECTS
- _SC_USER_GROUPS
- _SC_USER_GROUPS_R
- _SC_2_PBS
- _SC_2_PBS_ACCOUNTING
- _SC_2_PBS_LOCATE
- _SC_2_PBS_MESSAGE
- _SC_2_PBS_TRACK
- _SC_SYMLOOP_MAX
- _SC_STREAMS
- _SC_2_PBS_CHECKPOINT
- _SC_V6_ILP32_OFF32
- _SC_V6_ILP32_OFFBIG
- _SC_V6_LP64_OFF64
- _SC_V6_LPBIG_OFFBIG
- _SC_HOST_NAME_MAX
- _SC_TRACE
- _SC_TRACE_EVENT_FILTER
- _SC_TRACE_INHERIT
- _SC_TRACE_LOG
- _SC_LEVEL1_ICACHE_SIZE
- _SC_LEVEL1_ICACHE_ASSOC
- _SC_LEVEL1_ICACHE_LINESIZE
- _SC_LEVEL1_DCACHE_SIZE
- _SC_LEVEL1_DCACHE_ASSOC
- _SC_LEVEL1_DCACHE_LINESIZE
- _SC_LEVEL2_CACHE_SIZE
- _SC_LEVEL2_CACHE_ASSOC
- _SC_LEVEL2_CACHE_LINESIZE
- _SC_LEVEL3_CACHE_SIZE
- _SC_LEVEL3_CACHE_ASSOC
- _SC_LEVEL3_CACHE_LINESIZE
- _SC_LEVEL4_CACHE_SIZE
- _SC_LEVEL4_CACHE_ASSOC
- _SC_LEVEL4_CACHE_LINESIZE
- _SC_IPV6
- _SC_RAW_SOCKETS
- _SC_V7_ILP32_OFF32
- _SC_V7_ILP32_OFFBIG
- _SC_V7_LP64_OFF64
- _SC_V7_LPBIG_OFFBIG
- _SC_SS_REPL_MAX
- _SC_TRACE_EVENT_NAME_MAX
- _SC_TRACE_NAME_MAX
- _SC_TRACE_SYS_MAX
- _SC_TRACE_USER_EVENT_MAX
- _SC_XOPEN_STREAMS
- _SC_THREAD_ROBUST_PRIO_INHERIT
- _SC_THREAD_ROBUST_PRIO_PROTECT
