"header","freebsd8","linux3.2","macosx10.6.8","solaris10","hpux11.11","irix6.5.30","description"
"assert.h","y","y","y","y","y","y","verify program assertion"
"complex.h","y","y","y","y","y","y"," complex arithmetic support"
"ctype.h","y","y","y","y","y","y","character classification and mapping support"
"errno.h","y","y","y","y","y","y","error codes"
"fenv.h","y","y","y","y","y","y","floating point environment"
"float.h","y","y","y","y","y","y","floating point constants and characteristics"
"inttypes.h","y","y","y","y","y","y","integer type format conversion"
"iso646.h","y","y","y","y","y","y","macros for assignment; relational and unary operations"
"limits.h","y","y","y","y","y","y","implementation constants"
"locale.h","y","y","y","y","y","y","locale characteristics and related definitions"
"math.h","y","y","y","y","y","y","mathematical function and type declarations and constants"
"setjmp.h","y","y","y","y","y","y","nonlocal goto"
"signal.h","y","y","y","y","y","y","signals"
"stdarg.h","y","y","y","y","y","y","variable argument lists"
"stdbool.h","y","y","y","y","y","y","Boolean types and values"
"stddef.h","y","y","y","y","y","y","standard definitions"
"stdint.h","y","y","y","y","y","y","integer types"
"stdio.h","y","y","y","y","y","y","standard I/O library"
"stdlib.h","y","y","y","y","y","y","utility functions"
"string.h","y","y","y","y","y","y","string operations"
"tgmath.h","y","y","y","y","y","y","type-generic math macros"
"time.h","y","y","y","y","y","y","time and date"
"wchar.h","y","y","y","y","y","y","extended multibyte and wide character support"
"wctype.h","y","y","y","y","y","y","wide character classification and mapping support"
"##End of ISO C standard headers",,,,,,,
"aio.h","y","y","y","y","y","y","asynchronous I/O"
"cpio.h","y","y","y","y","y","y","cpio archive values"
"dirent.h","y","y","y","y","y","y","directory entries"
"dlfcn.h","y","y","y","y","y","y","dynamic linking"
"fcntl.h","y","y","y","y","y","y","file control"
"fnmatch.h","y","y","y","y","y","y","filename-matching types"
"glob.h","y","y","y","y","y","y","pathname pattern-matching and generation"
"grp.h","y","y","y","y","y","y","group file"
"iconv.h","y","y","y","y","y","y","codeset conversion utility"
"langinfo.h","y","y","y","y","y","y","language information constants"
"monetary.h","y","y","y","y","y","y","monetary types and functions"
"netdb.h","y","y","y","y","y","y","network database operations"
"nl_types.h","y","y","y","y","y","y","message catalogs"
"pool.h","y","y","y","y","y","y","poll function"
"pthread.h","y","y","y","y","y","y","threads"
"pwd.h","y","y","y","y","y","y","password file"
"regex.h","y","y","y","y","y","y","regular expressions"
"sched.h","y","y","y","y","y","y","execution scheduling"
"semaphore.h","y","y","y","y","y","y","semaphores"
"strings.h","y","y","y","y","y","y","string operations"
"tar.h","y","y","y","y","y","y","tar archive values"
"termios.h","y","y","y","y","y","y","terminal I/O"
"unistd.h","y","y","y","y","y","y","symbolic constants"
"wordexp.h","y","y","y","y","y","y","word-expansion definitions"
"arpa/inet.h","y","y","y","y","y","y","Internet definitions"
"net/if.h","y","y","y","y","y","y","socket local interfaces"
"netinet/in.h","y","y","y","y","y","y","Internet address family"
"netinet/tcp.h","y","y","y","y","y","y","Transmission Control Protocol definitions"
"sys/mman.,h","y","y","y","y","y","y","memory management declarations"
"sys/select.h","y","y","y","y","NO","y","select function"
"sys/socket.h","y","y","y","y","y","y","sockets interface"
"sys/stat.h","y","y","y","y","y","y","file status"
"sys/statvfs.h","y","y","y","y","y","y","file system information"
"sys/times.h","y","y","y","y","y","y","process times"
"sys/types.h","y","y","y","y","y","y","primitive system data types"
"sys/un.h","y","y","y","y","y","y","UNIX domain socket definitions"
"sys/utsname.h","y","y","y","y","y","y","system name"
"sys/wait.h","y","y","y","y","y","y","process control"
"##End of required headers defined by the POSIX standard",,,,,,,
"fmtmsg.h","y","y","y","y","y","y","message display structures"
"ftw.h","y","y","y","y","y","y","file tree walking"
"libgen.h","y","y","y","y","y","y","pathname management functions"
"ndbm.h","y","y","y","y","y","y","database operations"
"search.h","y","y","y","y","y","y","search tables"
"syslog.h","y","y","y","y","y","y","system error logging"
"utmpx.h","y","y","y","y","y","y","user accounting database"
"sys/ipc.h","y","y","y","y","y","y","IPC"
"sys/msg.h","y","y","y","y","y","y","XSI messages queues"
"sys/resource.h","y","y","y","y","y","y","resource operations"
"sys/sem.h","y","y","y","y","y","y","XSI semaphores"
"sys/shm.h","y","y","y","y","y","y","XSI shared memory"
"sys/time.h","y","y","y","y","y","y","time types"
"sys/uio.h","y","y","y","y","y","y","vector I/O operations"
"##End of XSI option headers definted by the POSIX standard",,,,,,,
"mqueue.h","y","y","NO","y","y","y","message queues"
"spawn.h","y","y","y","y","NO","NO","real-time spawn interface"
"##End of optional headers defined by the POSIX standard",,,,,,,