libc compatibility table (gcvt - getopt)

Name of Interface	Legacy compatibility				UDK compatibility
	Compiled using SCO OpenServer DevSys		Compiled using SCO UnixWare 2.1.X SDK		Compiled using UnixWare 7 UDK
	Library Name	Works on UnixWare 7?	Library Name	Works on UnixWare 7?	Library Name	Works on SCO OpenServer?	Works on SCO UnixWare 2.1.X?
gcvt	libc	Yes	libc	Yes	libc	Yes	Yes
gcvtl	Yes	Yes	libc	Yes	libc	Yes	Yes
getc	libc	Yes	libc	Yes	libc	Yes	Yes
getc_unlocked	libc	Yes	libc	Yes	libc	Yes	Yes
getchar	libc	Yes	libc	Yes	libc	Yes	Yes
getchar_unlocked	libc	Yes	libc	Yes	libc	Yes	Yes
getcwd	libc	Yes	libc	Yes	libc	Yes	Yes
getdate	libc	Yes; notes.	libc	Yes	libc	Yes	Yes
getdate_err	libc	Yes	libc	Yes	libc	Yes	Yes
getdtablesize	libc	Yes	libc89.a libucb.a	Yes	libc	Yes	Yes
getenv	libc	Yes	libc	Yes	libc	Yes	Yes
getgrent	libc	Yes	libc	Yes	libc	Yes	Yes
getgrgid	libc	Yes	libc	Yes	libc	Yes	Yes
getgrnam	libc	Yes	libc	Yes	libc	Yes	Yes
gethz	libc	Yes	libc	Yes	libc	Yes	Yes
gethostid	--	--	libc89.a libucb.a	Yes	libc	Yes	Yes
gethostname	libsocket	Yes	libc89.a libucb.a	Yes	libc libucb.a	Yes	Yes
getlogin	libc	Yes	libc	Yes	libc	Yes	Yes
getlogin_r	libc	Yes	libc	Yes	libc	Yes	Yes
getopt	libc	Yes	libc	Yes	libc	Yes	Yes

``Compatibility Table Legend''