diff --git a/Lib/plat-sunos4/IN.py b/Lib/plat-sunos4/IN.py
deleted file mode 100755
index a05a9445b5d..00000000000
--- a/Lib/plat-sunos4/IN.py
+++ /dev/null
@@ -1,59 +0,0 @@
-# Generated by h2py from /usr/include/netinet/in.h
-IPPROTO_IP = 0
-IPPROTO_ICMP = 1
-IPPROTO_IGMP = 2
-IPPROTO_GGP = 3
-IPPROTO_TCP = 6
-IPPROTO_EGP = 8
-IPPROTO_PUP = 12
-IPPROTO_UDP = 17
-IPPROTO_IDP = 22
-IPPROTO_HELLO = 63
-IPPROTO_ND = 77
-IPPROTO_RAW = 255
-IPPROTO_MAX = 256
-IPPORT_ECHO = 7
-IPPORT_DISCARD = 9
-IPPORT_SYSTAT = 11
-IPPORT_DAYTIME = 13
-IPPORT_NETSTAT = 15
-IPPORT_FTP = 21
-IPPORT_TELNET = 23
-IPPORT_SMTP = 25
-IPPORT_TIMESERVER = 37
-IPPORT_NAMESERVER = 42
-IPPORT_WHOIS = 43
-IPPORT_MTP = 57
-IPPORT_TFTP = 69
-IPPORT_RJE = 77
-IPPORT_FINGER = 79
-IPPORT_TTYLINK = 87
-IPPORT_SUPDUP = 95
-IPPORT_EXECSERVER = 512
-IPPORT_LOGINSERVER = 513
-IPPORT_CMDSERVER = 514
-IPPORT_EFSSERVER = 520
-IPPORT_BIFFUDP = 512
-IPPORT_WHOSERVER = 513
-IPPORT_ROUTESERVER = 520
-IPPORT_RESERVED = 1024
-IPPORT_USERRESERVED = 5000
-IMPLINK_IP = 155
-IMPLINK_LOWEXPER = 156
-IMPLINK_HIGHEXPER = 158
-IN_CLASSA_NET = 0xff000000
-IN_CLASSA_NSHIFT = 24
-IN_CLASSA_HOST = 0x00ffffff
-IN_CLASSA_MAX = 128
-IN_CLASSB_NET = 0xffff0000
-IN_CLASSB_NSHIFT = 16
-IN_CLASSB_HOST = 0x0000ffff
-IN_CLASSB_MAX = 65536
-IN_CLASSC_NET = 0xffffff00
-IN_CLASSC_NSHIFT = 8
-IN_CLASSC_HOST = 0x000000ff
-INADDR_ANY = 0x00000000
-INADDR_LOOPBACK = 0x7F000001
-INADDR_BROADCAST = 0xffffffff
-IN_LOOPBACKNET = 127
-IP_OPTIONS = 1
diff --git a/Lib/plat-sunos4/SUNAUDIODEV.py b/Lib/plat-sunos4/SUNAUDIODEV.py
deleted file mode 100755
index b66610d903e..00000000000
--- a/Lib/plat-sunos4/SUNAUDIODEV.py
+++ /dev/null
@@ -1,38 +0,0 @@
-# Symbolic constants for use with sunaudiodev module
-# The names are the same as in audioio.h with the leading AUDIO_
-# removed.
-
-# Not all values are supported on all releases of SunOS.
-
-# Encoding types, for fields i_encoding and o_encoding
-
-ENCODING_NONE = 0			# no encoding assigned
-ENCODING_ULAW = 1			# u-law encoding
-ENCODING_ALAW = 2			# A-law encoding
-ENCODING_LINEAR = 3			# Linear PCM encoding
-
-# Gain ranges for i_gain, o_gain and monitor_gain
-
-MIN_GAIN = 0				# minimum gain value
-MAX_GAIN = 255				# maximum gain value
-
-# Balance values for i_balance and o_balance
-
-LEFT_BALANCE = 0			# left channel only
-MID_BALANCE = 32			# equal left/right channel
-RIGHT_BALANCE = 64			# right channel only
-BALANCE_SHIFT = 3
-
-# Port names for i_port and o_port
-
-PORT_A = 1
-PORT_B = 2
-PORT_C = 3
-PORT_D = 4
-
-SPEAKER = 0x01				# output to built-in speaker
-HEADPHONE = 0x02			# output to headphone jack
-LINE_OUT = 0x04				# output to line out
-
-MICROPHONE = 0x01			# input from microphone
-LINE_IN = 0x02				# input from line in
diff --git a/Lib/plat-sunos4/WAIT.py b/Lib/plat-sunos4/WAIT.py
deleted file mode 100755
index 43612f00c06..00000000000
--- a/Lib/plat-sunos4/WAIT.py
+++ /dev/null
@@ -1,13 +0,0 @@
-# Generated by h2py from /usr/include/sys/wait.h
-WUNTRACED = 0004
-WNOHANG = 0100
-WEXITED = 0001
-WTRAPPED = 0002
-WSTOPPED = WUNTRACED
-WCONTINUED = 0010
-WNOWAIT = 0200
-WOPTMASK = (WEXITED|WTRAPPED|WSTOPPED|WCONTINUED|WNOHANG|WNOWAIT)
-WSTOPFLG = 0177
-WCONTFLG = 0177777
-WCOREFLG = 0200
-WSIGMASK = 0177
diff --git a/Lib/plat-sunos4/regen b/Lib/plat-sunos4/regen
deleted file mode 100755
index e44f2386caa..00000000000
--- a/Lib/plat-sunos4/regen
+++ /dev/null
@@ -1,9 +0,0 @@
-#! /bin/sh
-case `uname -sr` in
-'SunOS 4.'*)	;;
-*)	echo Probably not on a SunOS 4 system 1>&2
-	exit 1;;
-esac
-set -v
-h2py /usr/include/sys/wait.h
-h2py -i '(u_long)' /usr/include/netinet/in.h