diff --git a/Doc/whatsnew/3.3.rst b/Doc/whatsnew/3.3.rst
index 79a53ff..0edf5ff 100644
--- a/Doc/whatsnew/3.3.rst
+++ b/Doc/whatsnew/3.3.rst
@@ -274,8 +274,11 @@
 This section lists previously described changes and other bugfixes
 that may require changes to your code:
 
-* Stub
-
+* Issue #12326: On Linux, sys.platform doesn't contain the major version
+  anymore. It is now always 'linux', instead of 'linux2' or 'linux3' depending
+  on the Linux version used to build Python. Replace sys.platform == 'linux2'
+  with sys.platform.startswith('linux'), or directly sys.platform == 'linux' if
+  you don't need to support older Python versions.
 
 .. Issue #11591: When :program:`python` was started with :option:`-S`,
    ``import site`` will not add site-specific paths to the module search
diff --git a/Lib/plat-linux2/CDROM.py b/Lib/plat-linux/CDROM.py
similarity index 100%
rename from Lib/plat-linux2/CDROM.py
rename to Lib/plat-linux/CDROM.py
diff --git a/Lib/plat-linux2/DLFCN.py b/Lib/plat-linux/DLFCN.py
similarity index 100%
rename from Lib/plat-linux2/DLFCN.py
rename to Lib/plat-linux/DLFCN.py
diff --git a/Lib/plat-linux2/IN.py b/Lib/plat-linux/IN.py
similarity index 100%
rename from Lib/plat-linux2/IN.py
rename to Lib/plat-linux/IN.py
diff --git a/Lib/plat-linux2/TYPES.py b/Lib/plat-linux/TYPES.py
similarity index 100%
rename from Lib/plat-linux2/TYPES.py
rename to Lib/plat-linux/TYPES.py
diff --git a/Lib/plat-linux2/regen b/Lib/plat-linux/regen
similarity index 100%
rename from Lib/plat-linux2/regen
rename to Lib/plat-linux/regen
diff --git a/Lib/plat-linux3/CDROM.py b/Lib/plat-linux3/CDROM.py
deleted file mode 100644
index 4340936..0000000
--- a/Lib/plat-linux3/CDROM.py
+++ /dev/null
@@ -1,207 +0,0 @@
-# Generated by h2py from /usr/include/linux/cdrom.h
-
-CDROMPAUSE = 0x5301
-CDROMRESUME = 0x5302
-CDROMPLAYMSF = 0x5303
-CDROMPLAYTRKIND = 0x5304
-CDROMREADTOCHDR = 0x5305
-CDROMREADTOCENTRY = 0x5306
-CDROMSTOP = 0x5307
-CDROMSTART = 0x5308
-CDROMEJECT = 0x5309
-CDROMVOLCTRL = 0x530a
-CDROMSUBCHNL = 0x530b
-CDROMREADMODE2 = 0x530c
-CDROMREADMODE1 = 0x530d
-CDROMREADAUDIO = 0x530e
-CDROMEJECT_SW = 0x530f
-CDROMMULTISESSION = 0x5310
-CDROM_GET_MCN = 0x5311
-CDROM_GET_UPC = CDROM_GET_MCN
-CDROMRESET = 0x5312
-CDROMVOLREAD = 0x5313
-CDROMREADRAW = 0x5314
-CDROMREADCOOKED = 0x5315
-CDROMSEEK = 0x5316
-CDROMPLAYBLK = 0x5317
-CDROMREADALL = 0x5318
-CDROMGETSPINDOWN = 0x531d
-CDROMSETSPINDOWN = 0x531e
-CDROMCLOSETRAY = 0x5319
-CDROM_SET_OPTIONS = 0x5320
-CDROM_CLEAR_OPTIONS = 0x5321
-CDROM_SELECT_SPEED = 0x5322
-CDROM_SELECT_DISC = 0x5323
-CDROM_MEDIA_CHANGED = 0x5325
-CDROM_DRIVE_STATUS = 0x5326
-CDROM_DISC_STATUS = 0x5327
-CDROM_CHANGER_NSLOTS = 0x5328
-CDROM_LOCKDOOR = 0x5329
-CDROM_DEBUG = 0x5330
-CDROM_GET_CAPABILITY = 0x5331
-CDROMAUDIOBUFSIZ = 0x5382
-DVD_READ_STRUCT = 0x5390
-DVD_WRITE_STRUCT = 0x5391
-DVD_AUTH = 0x5392
-CDROM_SEND_PACKET = 0x5393
-CDROM_NEXT_WRITABLE = 0x5394
-CDROM_LAST_WRITTEN = 0x5395
-CDROM_PACKET_SIZE = 12
-CGC_DATA_UNKNOWN = 0
-CGC_DATA_WRITE = 1
-CGC_DATA_READ = 2
-CGC_DATA_NONE = 3
-CD_MINS = 74
-CD_SECS = 60
-CD_FRAMES = 75
-CD_SYNC_SIZE = 12
-CD_MSF_OFFSET = 150
-CD_CHUNK_SIZE = 24
-CD_NUM_OF_CHUNKS = 98
-CD_FRAMESIZE_SUB = 96
-CD_HEAD_SIZE = 4
-CD_SUBHEAD_SIZE = 8
-CD_EDC_SIZE = 4
-CD_ZERO_SIZE = 8
-CD_ECC_SIZE = 276
-CD_FRAMESIZE = 2048
-CD_FRAMESIZE_RAW = 2352
-CD_FRAMESIZE_RAWER = 2646
-CD_FRAMESIZE_RAW1 = (CD_FRAMESIZE_RAW-CD_SYNC_SIZE)
-CD_FRAMESIZE_RAW0 = (CD_FRAMESIZE_RAW-CD_SYNC_SIZE-CD_HEAD_SIZE)
-CD_XA_HEAD = (CD_HEAD_SIZE+CD_SUBHEAD_SIZE)
-CD_XA_TAIL = (CD_EDC_SIZE+CD_ECC_SIZE)
-CD_XA_SYNC_HEAD = (CD_SYNC_SIZE+CD_XA_HEAD)
-CDROM_LBA = 0x01
-CDROM_MSF = 0x02
-CDROM_DATA_TRACK = 0x04
-CDROM_LEADOUT = 0xAA
-CDROM_AUDIO_INVALID = 0x00
-CDROM_AUDIO_PLAY = 0x11
-CDROM_AUDIO_PAUSED = 0x12
-CDROM_AUDIO_COMPLETED = 0x13
-CDROM_AUDIO_ERROR = 0x14
-CDROM_AUDIO_NO_STATUS = 0x15
-CDC_CLOSE_TRAY = 0x1
-CDC_OPEN_TRAY = 0x2
-CDC_LOCK = 0x4
-CDC_SELECT_SPEED = 0x8
-CDC_SELECT_DISC = 0x10
-CDC_MULTI_SESSION = 0x20
-CDC_MCN = 0x40
-CDC_MEDIA_CHANGED = 0x80
-CDC_PLAY_AUDIO = 0x100
-CDC_RESET = 0x200
-CDC_IOCTLS = 0x400
-CDC_DRIVE_STATUS = 0x800
-CDC_GENERIC_PACKET = 0x1000
-CDC_CD_R = 0x2000
-CDC_CD_RW = 0x4000
-CDC_DVD = 0x8000
-CDC_DVD_R = 0x10000
-CDC_DVD_RAM = 0x20000
-CDS_NO_INFO = 0
-CDS_NO_DISC = 1
-CDS_TRAY_OPEN = 2
-CDS_DRIVE_NOT_READY = 3
-CDS_DISC_OK = 4
-CDS_AUDIO = 100
-CDS_DATA_1 = 101
-CDS_DATA_2 = 102
-CDS_XA_2_1 = 103
-CDS_XA_2_2 = 104
-CDS_MIXED = 105
-CDO_AUTO_CLOSE = 0x1
-CDO_AUTO_EJECT = 0x2
-CDO_USE_FFLAGS = 0x4
-CDO_LOCK = 0x8
-CDO_CHECK_TYPE = 0x10
-CD_PART_MAX = 64
-CD_PART_MASK = (CD_PART_MAX - 1)
-GPCMD_BLANK = 0xa1
-GPCMD_CLOSE_TRACK = 0x5b
-GPCMD_FLUSH_CACHE = 0x35
-GPCMD_FORMAT_UNIT = 0x04
-GPCMD_GET_CONFIGURATION = 0x46
-GPCMD_GET_EVENT_STATUS_NOTIFICATION = 0x4a
-GPCMD_GET_PERFORMANCE = 0xac
-GPCMD_INQUIRY = 0x12
-GPCMD_LOAD_UNLOAD = 0xa6
-GPCMD_MECHANISM_STATUS = 0xbd
-GPCMD_MODE_SELECT_10 = 0x55
-GPCMD_MODE_SENSE_10 = 0x5a
-GPCMD_PAUSE_RESUME = 0x4b
-GPCMD_PLAY_AUDIO_10 = 0x45
-GPCMD_PLAY_AUDIO_MSF = 0x47
-GPCMD_PLAY_AUDIO_TI = 0x48
-GPCMD_PLAY_CD = 0xbc
-GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL = 0x1e
-GPCMD_READ_10 = 0x28
-GPCMD_READ_12 = 0xa8
-GPCMD_READ_CDVD_CAPACITY = 0x25
-GPCMD_READ_CD = 0xbe
-GPCMD_READ_CD_MSF = 0xb9
-GPCMD_READ_DISC_INFO = 0x51
-GPCMD_READ_DVD_STRUCTURE = 0xad
-GPCMD_READ_FORMAT_CAPACITIES = 0x23
-GPCMD_READ_HEADER = 0x44
-GPCMD_READ_TRACK_RZONE_INFO = 0x52
-GPCMD_READ_SUBCHANNEL = 0x42
-GPCMD_READ_TOC_PMA_ATIP = 0x43
-GPCMD_REPAIR_RZONE_TRACK = 0x58
-GPCMD_REPORT_KEY = 0xa4
-GPCMD_REQUEST_SENSE = 0x03
-GPCMD_RESERVE_RZONE_TRACK = 0x53
-GPCMD_SCAN = 0xba
-GPCMD_SEEK = 0x2b
-GPCMD_SEND_DVD_STRUCTURE = 0xad
-GPCMD_SEND_EVENT = 0xa2
-GPCMD_SEND_KEY = 0xa3
-GPCMD_SEND_OPC = 0x54
-GPCMD_SET_READ_AHEAD = 0xa7
-GPCMD_SET_STREAMING = 0xb6
-GPCMD_START_STOP_UNIT = 0x1b
-GPCMD_STOP_PLAY_SCAN = 0x4e
-GPCMD_TEST_UNIT_READY = 0x00
-GPCMD_VERIFY_10 = 0x2f
-GPCMD_WRITE_10 = 0x2a
-GPCMD_WRITE_AND_VERIFY_10 = 0x2e
-GPCMD_SET_SPEED = 0xbb
-GPCMD_PLAYAUDIO_TI = 0x48
-GPCMD_GET_MEDIA_STATUS = 0xda
-GPMODE_R_W_ERROR_PAGE = 0x01
-GPMODE_WRITE_PARMS_PAGE = 0x05
-GPMODE_AUDIO_CTL_PAGE = 0x0e
-GPMODE_POWER_PAGE = 0x1a
-GPMODE_FAULT_FAIL_PAGE = 0x1c
-GPMODE_TO_PROTECT_PAGE = 0x1d
-GPMODE_CAPABILITIES_PAGE = 0x2a
-GPMODE_ALL_PAGES = 0x3f
-GPMODE_CDROM_PAGE = 0x0d
-DVD_STRUCT_PHYSICAL = 0x00
-DVD_STRUCT_COPYRIGHT = 0x01
-DVD_STRUCT_DISCKEY = 0x02
-DVD_STRUCT_BCA = 0x03
-DVD_STRUCT_MANUFACT = 0x04
-DVD_LAYERS = 4
-DVD_LU_SEND_AGID = 0
-DVD_HOST_SEND_CHALLENGE = 1
-DVD_LU_SEND_KEY1 = 2
-DVD_LU_SEND_CHALLENGE = 3
-DVD_HOST_SEND_KEY2 = 4
-DVD_AUTH_ESTABLISHED = 5
-DVD_AUTH_FAILURE = 6
-DVD_LU_SEND_TITLE_KEY = 7
-DVD_LU_SEND_ASF = 8
-DVD_INVALIDATE_AGID = 9
-DVD_LU_SEND_RPC_STATE = 10
-DVD_HOST_SEND_RPC_STATE = 11
-DVD_CPM_NO_COPYRIGHT = 0
-DVD_CPM_COPYRIGHTED = 1
-DVD_CP_SEC_NONE = 0
-DVD_CP_SEC_EXIST = 1
-DVD_CGMS_UNRESTRICTED = 0
-DVD_CGMS_SINGLE = 2
-DVD_CGMS_RESTRICTED = 3
-
-CDROM_MAX_SLOTS = 256
diff --git a/Lib/plat-linux3/DLFCN.py b/Lib/plat-linux3/DLFCN.py
deleted file mode 100644
index dd10ac4..0000000
--- a/Lib/plat-linux3/DLFCN.py
+++ /dev/null
@@ -1,83 +0,0 @@
-# Generated by h2py from /usr/include/dlfcn.h
-_DLFCN_H = 1
-
-# Included from features.h
-_FEATURES_H = 1
-__USE_ANSI = 1
-__FAVOR_BSD = 1
-_ISOC99_SOURCE = 1
-_POSIX_SOURCE = 1
-_POSIX_C_SOURCE = 199506
-_XOPEN_SOURCE = 600
-_XOPEN_SOURCE_EXTENDED = 1
-_LARGEFILE64_SOURCE = 1
-_BSD_SOURCE = 1
-_SVID_SOURCE = 1
-_BSD_SOURCE = 1
-_SVID_SOURCE = 1
-__USE_ISOC99 = 1
-_POSIX_SOURCE = 1
-_POSIX_C_SOURCE = 2
-_POSIX_C_SOURCE = 199506
-__USE_POSIX = 1
-__USE_POSIX2 = 1
-__USE_POSIX199309 = 1
-__USE_POSIX199506 = 1
-__USE_XOPEN = 1
-__USE_XOPEN_EXTENDED = 1
-__USE_UNIX98 = 1
-_LARGEFILE_SOURCE = 1
-__USE_XOPEN2K = 1
-__USE_ISOC99 = 1
-__USE_XOPEN_EXTENDED = 1
-__USE_LARGEFILE = 1
-__USE_LARGEFILE64 = 1
-__USE_FILE_OFFSET64 = 1
-__USE_MISC = 1
-__USE_BSD = 1
-__USE_SVID = 1
-__USE_GNU = 1
-__USE_REENTRANT = 1
-__STDC_IEC_559__ = 1
-__STDC_IEC_559_COMPLEX__ = 1
-__STDC_ISO_10646__ = 200009
-__GNU_LIBRARY__ = 6
-__GLIBC__ = 2
-__GLIBC_MINOR__ = 2
-
-# Included from sys/cdefs.h
-_SYS_CDEFS_H = 1
-def __PMT(args): return args
-
-def __P(args): return args
-
-def __PMT(args): return args
-
-def __STRING(x): return #x
-
-__flexarr = []
-__flexarr = [0]
-__flexarr = []
-__flexarr = [1]
-def __ASMNAME(cname): return __ASMNAME2 (__USER_LABEL_PREFIX__, cname)
-
-def __attribute__(xyz): return
-
-def __attribute_format_arg__(x): return __attribute__ ((__format_arg__ (x)))
-
-def __attribute_format_arg__(x): return
-
-__USE_LARGEFILE = 1
-__USE_LARGEFILE64 = 1
-__USE_EXTERN_INLINES = 1
-
-# Included from gnu/stubs.h
-
-# Included from bits/dlfcn.h
-RTLD_LAZY = 0x00001
-RTLD_NOW = 0x00002
-RTLD_BINDING_MASK = 0x3
-RTLD_NOLOAD = 0x00004
-RTLD_GLOBAL = 0x00100
-RTLD_LOCAL = 0
-RTLD_NODELETE = 0x01000
diff --git a/Lib/plat-linux3/IN.py b/Lib/plat-linux3/IN.py
deleted file mode 100644
index d7d3002..0000000
--- a/Lib/plat-linux3/IN.py
+++ /dev/null
@@ -1,615 +0,0 @@
-# Generated by h2py from /usr/include/netinet/in.h
-_NETINET_IN_H = 1
-
-# Included from features.h
-_FEATURES_H = 1
-__USE_ANSI = 1
-__FAVOR_BSD = 1
-_ISOC99_SOURCE = 1
-_POSIX_SOURCE = 1
-_POSIX_C_SOURCE = 199506
-_XOPEN_SOURCE = 600
-_XOPEN_SOURCE_EXTENDED = 1
-_LARGEFILE64_SOURCE = 1
-_BSD_SOURCE = 1
-_SVID_SOURCE = 1
-_BSD_SOURCE = 1
-_SVID_SOURCE = 1
-__USE_ISOC99 = 1
-_POSIX_SOURCE = 1
-_POSIX_C_SOURCE = 2
-_POSIX_C_SOURCE = 199506
-__USE_POSIX = 1
-__USE_POSIX2 = 1
-__USE_POSIX199309 = 1
-__USE_POSIX199506 = 1
-__USE_XOPEN = 1
-__USE_XOPEN_EXTENDED = 1
-__USE_UNIX98 = 1
-_LARGEFILE_SOURCE = 1
-__USE_XOPEN2K = 1
-__USE_ISOC99 = 1
-__USE_XOPEN_EXTENDED = 1
-__USE_LARGEFILE = 1
-__USE_LARGEFILE64 = 1
-__USE_FILE_OFFSET64 = 1
-__USE_MISC = 1
-__USE_BSD = 1
-__USE_SVID = 1
-__USE_GNU = 1
-__USE_REENTRANT = 1
-__STDC_IEC_559__ = 1
-__STDC_IEC_559_COMPLEX__ = 1
-__STDC_ISO_10646__ = 200009
-__GNU_LIBRARY__ = 6
-__GLIBC__ = 2
-__GLIBC_MINOR__ = 2
-
-# Included from sys/cdefs.h
-_SYS_CDEFS_H = 1
-def __PMT(args): return args
-
-def __P(args): return args
-
-def __PMT(args): return args
-
-def __STRING(x): return #x
-
-__flexarr = []
-__flexarr = [0]
-__flexarr = []
-__flexarr = [1]
-def __ASMNAME(cname): return __ASMNAME2 (__USER_LABEL_PREFIX__, cname)
-
-def __attribute__(xyz): return
-
-def __attribute_format_arg__(x): return __attribute__ ((__format_arg__ (x)))
-
-def __attribute_format_arg__(x): return
-
-__USE_LARGEFILE = 1
-__USE_LARGEFILE64 = 1
-__USE_EXTERN_INLINES = 1
-
-# Included from gnu/stubs.h
-
-# Included from stdint.h
-_STDINT_H = 1
-
-# Included from bits/wchar.h
-_BITS_WCHAR_H = 1
-__WCHAR_MIN = (-2147483647 - 1)
-__WCHAR_MAX = (2147483647)
-
-# Included from bits/wordsize.h
-__WORDSIZE = 32
-def __INT64_C(c): return c ## L
-
-def __UINT64_C(c): return c ## UL
-
-def __INT64_C(c): return c ## LL
-
-def __UINT64_C(c): return c ## ULL
-
-INT8_MIN = (-128)
-INT16_MIN = (-32767-1)
-INT32_MIN = (-2147483647-1)
-INT64_MIN = (-__INT64_C(9223372036854775807)-1)
-INT8_MAX = (127)
-INT16_MAX = (32767)
-INT32_MAX = (2147483647)
-INT64_MAX = (__INT64_C(9223372036854775807))
-UINT8_MAX = (255)
-UINT16_MAX = (65535)
-UINT64_MAX = (__UINT64_C(18446744073709551615))
-INT_LEAST8_MIN = (-128)
-INT_LEAST16_MIN = (-32767-1)
-INT_LEAST32_MIN = (-2147483647-1)
-INT_LEAST64_MIN = (-__INT64_C(9223372036854775807)-1)
-INT_LEAST8_MAX = (127)
-INT_LEAST16_MAX = (32767)
-INT_LEAST32_MAX = (2147483647)
-INT_LEAST64_MAX = (__INT64_C(9223372036854775807))
-UINT_LEAST8_MAX = (255)
-UINT_LEAST16_MAX = (65535)
-UINT_LEAST64_MAX = (__UINT64_C(18446744073709551615))
-INT_FAST8_MIN = (-128)
-INT_FAST16_MIN = (-9223372036854775807-1)
-INT_FAST32_MIN = (-9223372036854775807-1)
-INT_FAST16_MIN = (-2147483647-1)
-INT_FAST32_MIN = (-2147483647-1)
-INT_FAST64_MIN = (-__INT64_C(9223372036854775807)-1)
-INT_FAST8_MAX = (127)
-INT_FAST16_MAX = (9223372036854775807)
-INT_FAST32_MAX = (9223372036854775807)
-INT_FAST16_MAX = (2147483647)
-INT_FAST32_MAX = (2147483647)
-INT_FAST64_MAX = (__INT64_C(9223372036854775807))
-UINT_FAST8_MAX = (255)
-UINT_FAST64_MAX = (__UINT64_C(18446744073709551615))
-INTPTR_MIN = (-9223372036854775807-1)
-INTPTR_MAX = (9223372036854775807)
-INTPTR_MIN = (-2147483647-1)
-INTPTR_MAX = (2147483647)
-INTMAX_MIN = (-__INT64_C(9223372036854775807)-1)
-INTMAX_MAX = (__INT64_C(9223372036854775807))
-UINTMAX_MAX = (__UINT64_C(18446744073709551615))
-PTRDIFF_MIN = (-9223372036854775807-1)
-PTRDIFF_MAX = (9223372036854775807)
-PTRDIFF_MIN = (-2147483647-1)
-PTRDIFF_MAX = (2147483647)
-SIG_ATOMIC_MIN = (-2147483647-1)
-SIG_ATOMIC_MAX = (2147483647)
-WCHAR_MIN = __WCHAR_MIN
-WCHAR_MAX = __WCHAR_MAX
-def INT8_C(c): return c
-
-def INT16_C(c): return c
-
-def INT32_C(c): return c
-
-def INT64_C(c): return c ## L
-
-def INT64_C(c): return c ## LL
-
-def UINT8_C(c): return c ## U
-
-def UINT16_C(c): return c ## U
-
-def UINT32_C(c): return c ## U
-
-def UINT64_C(c): return c ## UL
-
-def UINT64_C(c): return c ## ULL
-
-def INTMAX_C(c): return c ## L
-
-def UINTMAX_C(c): return c ## UL
-
-def INTMAX_C(c): return c ## LL
-
-def UINTMAX_C(c): return c ## ULL
-
-
-# Included from bits/types.h
-_BITS_TYPES_H = 1
-__FD_SETSIZE = 1024
-
-# Included from bits/pthreadtypes.h
-_BITS_PTHREADTYPES_H = 1
-
-# Included from bits/sched.h
-SCHED_OTHER = 0
-SCHED_FIFO = 1
-SCHED_RR = 2
-CSIGNAL = 0x000000ff
-CLONE_VM = 0x00000100
-CLONE_FS = 0x00000200
-CLONE_FILES = 0x00000400
-CLONE_SIGHAND = 0x00000800
-CLONE_PID = 0x00001000
-CLONE_PTRACE = 0x00002000
-CLONE_VFORK = 0x00004000
-__defined_schedparam = 1
-def IN_CLASSA(a): return ((((in_addr_t)(a)) & (-2147483648)) == 0)
-
-IN_CLASSA_NET = (-16777216)
-IN_CLASSA_NSHIFT = 24
-IN_CLASSA_HOST = ((-1) & ~IN_CLASSA_NET)
-IN_CLASSA_MAX = 128
-def IN_CLASSB(a): return ((((in_addr_t)(a)) & (-1073741824)) == (-2147483648))
-
-IN_CLASSB_NET = (-65536)
-IN_CLASSB_NSHIFT = 16
-IN_CLASSB_HOST = ((-1) & ~IN_CLASSB_NET)
-IN_CLASSB_MAX = 65536
-def IN_CLASSC(a): return ((((in_addr_t)(a)) & (-536870912)) == (-1073741824))
-
-IN_CLASSC_NET = (-256)
-IN_CLASSC_NSHIFT = 8
-IN_CLASSC_HOST = ((-1) & ~IN_CLASSC_NET)
-def IN_CLASSD(a): return ((((in_addr_t)(a)) & (-268435456)) == (-536870912))
-
-def IN_MULTICAST(a): return IN_CLASSD(a)
-
-def IN_EXPERIMENTAL(a): return ((((in_addr_t)(a)) & (-536870912)) == (-536870912))
-
-def IN_BADCLASS(a): return ((((in_addr_t)(a)) & (-268435456)) == (-268435456))
-
-IN_LOOPBACKNET = 127
-INET_ADDRSTRLEN = 16
-INET6_ADDRSTRLEN = 46
-
-# Included from bits/socket.h
-
-# Included from limits.h
-_LIBC_LIMITS_H_ = 1
-MB_LEN_MAX = 16
-_LIMITS_H = 1
-CHAR_BIT = 8
-SCHAR_MIN = (-128)
-SCHAR_MAX = 127
-UCHAR_MAX = 255
-CHAR_MIN = 0
-CHAR_MAX = UCHAR_MAX
-CHAR_MIN = SCHAR_MIN
-CHAR_MAX = SCHAR_MAX
-SHRT_MIN = (-32768)
-SHRT_MAX = 32767
-USHRT_MAX = 65535
-INT_MAX = 2147483647
-LONG_MAX = 9223372036854775807
-LONG_MAX = 2147483647
-LONG_MIN = (-LONG_MAX - 1)
-
-# Included from bits/posix1_lim.h
-_BITS_POSIX1_LIM_H = 1
-_POSIX_AIO_LISTIO_MAX = 2
-_POSIX_AIO_MAX = 1
-_POSIX_ARG_MAX = 4096
-_POSIX_CHILD_MAX = 6
-_POSIX_DELAYTIMER_MAX = 32
-_POSIX_LINK_MAX = 8
-_POSIX_MAX_CANON = 255
-_POSIX_MAX_INPUT = 255
-_POSIX_MQ_OPEN_MAX = 8
-_POSIX_MQ_PRIO_MAX = 32
-_POSIX_NGROUPS_MAX = 0
-_POSIX_OPEN_MAX = 16
-_POSIX_FD_SETSIZE = _POSIX_OPEN_MAX
-_POSIX_NAME_MAX = 14
-_POSIX_PATH_MAX = 256
-_POSIX_PIPE_BUF = 512
-_POSIX_RTSIG_MAX = 8
-_POSIX_SEM_NSEMS_MAX = 256
-_POSIX_SEM_VALUE_MAX = 32767
-_POSIX_SIGQUEUE_MAX = 32
-_POSIX_SSIZE_MAX = 32767
-_POSIX_STREAM_MAX = 8
-_POSIX_TZNAME_MAX = 6
-_POSIX_QLIMIT = 1
-_POSIX_HIWAT = _POSIX_PIPE_BUF
-_POSIX_UIO_MAXIOV = 16
-_POSIX_TTY_NAME_MAX = 9
-_POSIX_TIMER_MAX = 32
-_POSIX_LOGIN_NAME_MAX = 9
-_POSIX_CLOCKRES_MIN = 20000000
-
-# Included from bits/local_lim.h
-
-# Included from linux/limits.h
-NR_OPEN = 1024
-NGROUPS_MAX = 32
-ARG_MAX = 131072
-CHILD_MAX = 999
-OPEN_MAX = 256
-LINK_MAX = 127
-MAX_CANON = 255
-MAX_INPUT = 255
-NAME_MAX = 255
-PATH_MAX = 4096
-PIPE_BUF = 4096
-RTSIG_MAX = 32
-_POSIX_THREAD_KEYS_MAX = 128
-PTHREAD_KEYS_MAX = 1024
-_POSIX_THREAD_DESTRUCTOR_ITERATIONS = 4
-PTHREAD_DESTRUCTOR_ITERATIONS = _POSIX_THREAD_DESTRUCTOR_ITERATIONS
-_POSIX_THREAD_THREADS_MAX = 64
-PTHREAD_THREADS_MAX = 1024
-AIO_PRIO_DELTA_MAX = 20
-PTHREAD_STACK_MIN = 16384
-TIMER_MAX = 256
-SSIZE_MAX = LONG_MAX
-NGROUPS_MAX = _POSIX_NGROUPS_MAX
-
-# Included from bits/posix2_lim.h
-_BITS_POSIX2_LIM_H = 1
-_POSIX2_BC_BASE_MAX = 99
-_POSIX2_BC_DIM_MAX = 2048
-_POSIX2_BC_SCALE_MAX = 99
-_POSIX2_BC_STRING_MAX = 1000
-_POSIX2_COLL_WEIGHTS_MAX = 2
-_POSIX2_EXPR_NEST_MAX = 32
-_POSIX2_LINE_MAX = 2048
-_POSIX2_RE_DUP_MAX = 255
-_POSIX2_CHARCLASS_NAME_MAX = 14
-BC_BASE_MAX = _POSIX2_BC_BASE_MAX
-BC_DIM_MAX = _POSIX2_BC_DIM_MAX
-BC_SCALE_MAX = _POSIX2_BC_SCALE_MAX
-BC_STRING_MAX = _POSIX2_BC_STRING_MAX
-COLL_WEIGHTS_MAX = 255
-EXPR_NEST_MAX = _POSIX2_EXPR_NEST_MAX
-LINE_MAX = _POSIX2_LINE_MAX
-CHARCLASS_NAME_MAX = 2048
-RE_DUP_MAX = (0x7fff)
-
-# Included from bits/xopen_lim.h
-_XOPEN_LIM_H = 1
-
-# Included from bits/stdio_lim.h
-L_tmpnam = 20
-TMP_MAX = 238328
-FILENAME_MAX = 4096
-L_ctermid = 9
-L_cuserid = 9
-FOPEN_MAX = 16
-IOV_MAX = 1024
-_XOPEN_IOV_MAX = _POSIX_UIO_MAXIOV
-NL_ARGMAX = _POSIX_ARG_MAX
-NL_LANGMAX = _POSIX2_LINE_MAX
-NL_MSGMAX = INT_MAX
-NL_NMAX = INT_MAX
-NL_SETMAX = INT_MAX
-NL_TEXTMAX = INT_MAX
-NZERO = 20
-WORD_BIT = 16
-WORD_BIT = 32
-WORD_BIT = 64
-WORD_BIT = 16
-WORD_BIT = 32
-WORD_BIT = 64
-WORD_BIT = 32
-LONG_BIT = 32
-LONG_BIT = 64
-LONG_BIT = 32
-LONG_BIT = 64
-LONG_BIT = 64
-LONG_BIT = 32
-from TYPES import *
-PF_UNSPEC = 0
-PF_LOCAL = 1
-PF_UNIX = PF_LOCAL
-PF_FILE = PF_LOCAL
-PF_INET = 2
-PF_AX25 = 3
-PF_IPX = 4
-PF_APPLETALK = 5
-PF_NETROM = 6
-PF_BRIDGE = 7
-PF_ATMPVC = 8
-PF_X25 = 9
-PF_INET6 = 10
-PF_ROSE = 11
-PF_DECnet = 12
-PF_NETBEUI = 13
-PF_SECURITY = 14
-PF_KEY = 15
-PF_NETLINK = 16
-PF_ROUTE = PF_NETLINK
-PF_PACKET = 17
-PF_ASH = 18
-PF_ECONET = 19
-PF_ATMSVC = 20
-PF_SNA = 22
-PF_IRDA = 23
-PF_PPPOX = 24
-PF_WANPIPE = 25
-PF_BLUETOOTH = 31
-PF_MAX = 32
-AF_UNSPEC = PF_UNSPEC
-AF_LOCAL = PF_LOCAL
-AF_UNIX = PF_UNIX
-AF_FILE = PF_FILE
-AF_INET = PF_INET
-AF_AX25 = PF_AX25
-AF_IPX = PF_IPX
-AF_APPLETALK = PF_APPLETALK
-AF_NETROM = PF_NETROM
-AF_BRIDGE = PF_BRIDGE
-AF_ATMPVC = PF_ATMPVC
-AF_X25 = PF_X25
-AF_INET6 = PF_INET6
-AF_ROSE = PF_ROSE
-AF_DECnet = PF_DECnet
-AF_NETBEUI = PF_NETBEUI
-AF_SECURITY = PF_SECURITY
-AF_KEY = PF_KEY
-AF_NETLINK = PF_NETLINK
-AF_ROUTE = PF_ROUTE
-AF_PACKET = PF_PACKET
-AF_ASH = PF_ASH
-AF_ECONET = PF_ECONET
-AF_ATMSVC = PF_ATMSVC
-AF_SNA = PF_SNA
-AF_IRDA = PF_IRDA
-AF_PPPOX = PF_PPPOX
-AF_WANPIPE = PF_WANPIPE
-AF_BLUETOOTH = PF_BLUETOOTH
-AF_MAX = PF_MAX
-SOL_RAW = 255
-SOL_DECNET = 261
-SOL_X25 = 262
-SOL_PACKET = 263
-SOL_ATM = 264
-SOL_AAL = 265
-SOL_IRDA = 266
-SOMAXCONN = 128
-
-# Included from bits/sockaddr.h
-_BITS_SOCKADDR_H = 1
-def __SOCKADDR_COMMON(sa_prefix): return \
-
-_SS_SIZE = 128
-def CMSG_FIRSTHDR(mhdr): return \
-
-
-# Included from asm/socket.h
-
-# Included from asm/sockios.h
-FIOSETOWN = 0x8901
-SIOCSPGRP = 0x8902
-FIOGETOWN = 0x8903
-SIOCGPGRP = 0x8904
-SIOCATMARK = 0x8905
-SIOCGSTAMP = 0x8906
-SOL_SOCKET = 1
-SO_DEBUG = 1
-SO_REUSEADDR = 2
-SO_TYPE = 3
-SO_ERROR = 4
-SO_DONTROUTE = 5
-SO_BROADCAST = 6
-SO_SNDBUF = 7
-SO_RCVBUF = 8
-SO_KEEPALIVE = 9
-SO_OOBINLINE = 10
-SO_NO_CHECK = 11
-SO_PRIORITY = 12
-SO_LINGER = 13
-SO_BSDCOMPAT = 14
-SO_PASSCRED = 16
-SO_PEERCRED = 17
-SO_RCVLOWAT = 18
-SO_SNDLOWAT = 19
-SO_RCVTIMEO = 20
-SO_SNDTIMEO = 21
-SO_SECURITY_AUTHENTICATION = 22
-SO_SECURITY_ENCRYPTION_TRANSPORT = 23
-SO_SECURITY_ENCRYPTION_NETWORK = 24
-SO_BINDTODEVICE = 25
-SO_ATTACH_FILTER = 26
-SO_DETACH_FILTER = 27
-SO_PEERNAME = 28
-SO_TIMESTAMP = 29
-SCM_TIMESTAMP = SO_TIMESTAMP
-SO_ACCEPTCONN = 30
-SOCK_STREAM = 1
-SOCK_DGRAM = 2
-SOCK_RAW = 3
-SOCK_RDM = 4
-SOCK_SEQPACKET = 5
-SOCK_PACKET = 10
-SOCK_MAX = (SOCK_PACKET+1)
-
-# Included from bits/in.h
-IP_TOS = 1
-IP_TTL = 2
-IP_HDRINCL = 3
-IP_OPTIONS = 4
-IP_ROUTER_ALERT = 5
-IP_RECVOPTS = 6
-IP_RETOPTS = 7
-IP_PKTINFO = 8
-IP_PKTOPTIONS = 9
-IP_PMTUDISC = 10
-IP_MTU_DISCOVER = 10
-IP_RECVERR = 11
-IP_RECVTTL = 12
-IP_RECVTOS = 13
-IP_MULTICAST_IF = 32
-IP_MULTICAST_TTL = 33
-IP_MULTICAST_LOOP = 34
-IP_ADD_MEMBERSHIP = 35
-IP_DROP_MEMBERSHIP = 36
-IP_RECVRETOPTS = IP_RETOPTS
-IP_PMTUDISC_DONT = 0
-IP_PMTUDISC_WANT = 1
-IP_PMTUDISC_DO = 2
-SOL_IP = 0
-IP_DEFAULT_MULTICAST_TTL = 1
-IP_DEFAULT_MULTICAST_LOOP = 1
-IP_MAX_MEMBERSHIPS = 20
-IPV6_ADDRFORM = 1
-IPV6_PKTINFO = 2
-IPV6_HOPOPTS = 3
-IPV6_DSTOPTS = 4
-IPV6_RTHDR = 5
-IPV6_PKTOPTIONS = 6
-IPV6_CHECKSUM = 7
-IPV6_HOPLIMIT = 8
-IPV6_NEXTHOP = 9
-IPV6_AUTHHDR = 10
-IPV6_UNICAST_HOPS = 16
-IPV6_MULTICAST_IF = 17
-IPV6_MULTICAST_HOPS = 18
-IPV6_MULTICAST_LOOP = 19
-IPV6_JOIN_GROUP = 20
-IPV6_LEAVE_GROUP = 21
-IPV6_ROUTER_ALERT = 22
-IPV6_MTU_DISCOVER = 23
-IPV6_MTU = 24
-IPV6_RECVERR = 25
-IPV6_RXHOPOPTS = IPV6_HOPOPTS
-IPV6_RXDSTOPTS = IPV6_DSTOPTS
-IPV6_ADD_MEMBERSHIP = IPV6_JOIN_GROUP
-IPV6_DROP_MEMBERSHIP = IPV6_LEAVE_GROUP
-IPV6_PMTUDISC_DONT = 0
-IPV6_PMTUDISC_WANT = 1
-IPV6_PMTUDISC_DO = 2
-SOL_IPV6 = 41
-SOL_ICMPV6 = 58
-IPV6_RTHDR_LOOSE = 0
-IPV6_RTHDR_STRICT = 1
-IPV6_RTHDR_TYPE_0 = 0
-
-# Included from endian.h
-_ENDIAN_H = 1
-__LITTLE_ENDIAN = 1234
-__BIG_ENDIAN = 4321
-__PDP_ENDIAN = 3412
-
-# Included from bits/endian.h
-__BYTE_ORDER = __LITTLE_ENDIAN
-__FLOAT_WORD_ORDER = __BYTE_ORDER
-LITTLE_ENDIAN = __LITTLE_ENDIAN
-BIG_ENDIAN = __BIG_ENDIAN
-PDP_ENDIAN = __PDP_ENDIAN
-BYTE_ORDER = __BYTE_ORDER
-
-# Included from bits/byteswap.h
-_BITS_BYTESWAP_H = 1
-def __bswap_constant_16(x): return \
-
-def __bswap_16(x): return \
-
-def __bswap_16(x): return __bswap_constant_16 (x)
-
-def __bswap_constant_32(x): return \
-
-def __bswap_32(x): return \
-
-def __bswap_32(x): return \
-
-def __bswap_32(x): return __bswap_constant_32 (x)
-
-def __bswap_constant_64(x): return \
-
-def __bswap_64(x): return \
-
-def ntohl(x): return (x)
-
-def ntohs(x): return (x)
-
-def htonl(x): return (x)
-
-def htons(x): return (x)
-
-def ntohl(x): return __bswap_32 (x)
-
-def ntohs(x): return __bswap_16 (x)
-
-def htonl(x): return __bswap_32 (x)
-
-def htons(x): return __bswap_16 (x)
-
-def IN6_IS_ADDR_UNSPECIFIED(a): return \
-
-def IN6_IS_ADDR_LOOPBACK(a): return \
-
-def IN6_IS_ADDR_LINKLOCAL(a): return \
-
-def IN6_IS_ADDR_SITELOCAL(a): return \
-
-def IN6_IS_ADDR_V4MAPPED(a): return \
-
-def IN6_IS_ADDR_V4COMPAT(a): return \
-
-def IN6_IS_ADDR_MC_NODELOCAL(a): return \
-
-def IN6_IS_ADDR_MC_LINKLOCAL(a): return \
-
-def IN6_IS_ADDR_MC_SITELOCAL(a): return \
-
-def IN6_IS_ADDR_MC_ORGLOCAL(a): return \
-
-def IN6_IS_ADDR_MC_GLOBAL(a): return
diff --git a/Lib/plat-linux3/TYPES.py b/Lib/plat-linux3/TYPES.py
deleted file mode 100644
index e7a324b..0000000
--- a/Lib/plat-linux3/TYPES.py
+++ /dev/null
@@ -1,170 +0,0 @@
-# Generated by h2py from /usr/include/sys/types.h
-_SYS_TYPES_H = 1
-
-# Included from features.h
-_FEATURES_H = 1
-__USE_ANSI = 1
-__FAVOR_BSD = 1
-_ISOC99_SOURCE = 1
-_POSIX_SOURCE = 1
-_POSIX_C_SOURCE = 199506
-_XOPEN_SOURCE = 600
-_XOPEN_SOURCE_EXTENDED = 1
-_LARGEFILE64_SOURCE = 1
-_BSD_SOURCE = 1
-_SVID_SOURCE = 1
-_BSD_SOURCE = 1
-_SVID_SOURCE = 1
-__USE_ISOC99 = 1
-_POSIX_SOURCE = 1
-_POSIX_C_SOURCE = 2
-_POSIX_C_SOURCE = 199506
-__USE_POSIX = 1
-__USE_POSIX2 = 1
-__USE_POSIX199309 = 1
-__USE_POSIX199506 = 1
-__USE_XOPEN = 1
-__USE_XOPEN_EXTENDED = 1
-__USE_UNIX98 = 1
-_LARGEFILE_SOURCE = 1
-__USE_XOPEN2K = 1
-__USE_ISOC99 = 1
-__USE_XOPEN_EXTENDED = 1
-__USE_LARGEFILE = 1
-__USE_LARGEFILE64 = 1
-__USE_FILE_OFFSET64 = 1
-__USE_MISC = 1
-__USE_BSD = 1
-__USE_SVID = 1
-__USE_GNU = 1
-__USE_REENTRANT = 1
-__STDC_IEC_559__ = 1
-__STDC_IEC_559_COMPLEX__ = 1
-__STDC_ISO_10646__ = 200009
-__GNU_LIBRARY__ = 6
-__GLIBC__ = 2
-__GLIBC_MINOR__ = 2
-
-# Included from sys/cdefs.h
-_SYS_CDEFS_H = 1
-def __PMT(args): return args
-
-def __P(args): return args
-
-def __PMT(args): return args
-
-def __STRING(x): return #x
-
-__flexarr = []
-__flexarr = [0]
-__flexarr = []
-__flexarr = [1]
-def __ASMNAME(cname): return __ASMNAME2 (__USER_LABEL_PREFIX__, cname)
-
-def __attribute__(xyz): return
-
-def __attribute_format_arg__(x): return __attribute__ ((__format_arg__ (x)))
-
-def __attribute_format_arg__(x): return
-
-__USE_LARGEFILE = 1
-__USE_LARGEFILE64 = 1
-__USE_EXTERN_INLINES = 1
-
-# Included from gnu/stubs.h
-
-# Included from bits/types.h
-_BITS_TYPES_H = 1
-__FD_SETSIZE = 1024
-
-# Included from bits/pthreadtypes.h
-_BITS_PTHREADTYPES_H = 1
-
-# Included from bits/sched.h
-SCHED_OTHER = 0
-SCHED_FIFO = 1
-SCHED_RR = 2
-CSIGNAL = 0x000000ff
-CLONE_VM = 0x00000100
-CLONE_FS = 0x00000200
-CLONE_FILES = 0x00000400
-CLONE_SIGHAND = 0x00000800
-CLONE_PID = 0x00001000
-CLONE_PTRACE = 0x00002000
-CLONE_VFORK = 0x00004000
-__defined_schedparam = 1
-
-# Included from time.h
-_TIME_H = 1
-
-# Included from bits/time.h
-_BITS_TIME_H = 1
-CLOCKS_PER_SEC = 1000000
-CLOCK_REALTIME = 0
-CLOCK_PROCESS_CPUTIME_ID = 2
-CLOCK_THREAD_CPUTIME_ID = 3
-TIMER_ABSTIME = 1
-_STRUCT_TIMEVAL = 1
-CLK_TCK = CLOCKS_PER_SEC
-__clock_t_defined = 1
-__time_t_defined = 1
-__clockid_t_defined = 1
-__timer_t_defined = 1
-__timespec_defined = 1
-def __isleap(year): return \
-
-__BIT_TYPES_DEFINED__ = 1
-
-# Included from endian.h
-_ENDIAN_H = 1
-__LITTLE_ENDIAN = 1234
-__BIG_ENDIAN = 4321
-__PDP_ENDIAN = 3412
-
-# Included from bits/endian.h
-__BYTE_ORDER = __LITTLE_ENDIAN
-__FLOAT_WORD_ORDER = __BYTE_ORDER
-LITTLE_ENDIAN = __LITTLE_ENDIAN
-BIG_ENDIAN = __BIG_ENDIAN
-PDP_ENDIAN = __PDP_ENDIAN
-BYTE_ORDER = __BYTE_ORDER
-
-# Included from sys/select.h
-_SYS_SELECT_H = 1
-
-# Included from bits/select.h
-def __FD_ZERO(fdsp): return \
-
-def __FD_ZERO(set): return \
-
-
-# Included from bits/sigset.h
-_SIGSET_H_types = 1
-_SIGSET_H_fns = 1
-def __sigmask(sig): return \
-
-def __sigemptyset(set): return \
-
-def __sigfillset(set): return \
-
-def __sigisemptyset(set): return \
-
-def __FDELT(d): return ((d) / __NFDBITS)
-
-FD_SETSIZE = __FD_SETSIZE
-def FD_ZERO(fdsetp): return __FD_ZERO (fdsetp)
-
-
-# Included from sys/sysmacros.h
-_SYS_SYSMACROS_H = 1
-def major(dev): return ((int)(((dev) >> 8) & 0xff))
-
-def minor(dev): return ((int)((dev) & 0xff))
-
-def major(dev): return (((dev).__val[1] >> 8) & 0xff)
-
-def minor(dev): return ((dev).__val[1] & 0xff)
-
-def major(dev): return (((dev).__val[0] >> 8) & 0xff)
-
-def minor(dev): return ((dev).__val[0] & 0xff)
diff --git a/Lib/plat-linux3/regen b/Lib/plat-linux3/regen
deleted file mode 100755
index c76950e..0000000
--- a/Lib/plat-linux3/regen
+++ /dev/null
@@ -1,8 +0,0 @@
-#! /bin/sh
-case `uname` in
-Linux*)	;;
-*)	echo Probably not on a Linux system 1>&2
-	exit 1;;
-esac
-set -v
-h2py -i '(u_long)' /usr/include/sys/types.h /usr/include/netinet/in.h /usr/include/dlfcn.h
diff --git a/Misc/NEWS b/Misc/NEWS
index 29a2e6f..a2943a7 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -265,6 +265,10 @@
 Library
 -------
 
+- Issue #12326: On Linux, sys.platform doesn't contain the major version
+  anymore. It is now always 'linux', instead of 'linux2' or 'linux3' depending
+  on the Linux version used to build Python.
+
 - Issue #12213: Fix a buffering bug with interleaved reads and writes that
   could appear on BufferedRandom streams.
 
diff --git a/configure b/configure
index c96306d..6b954b6 100755
--- a/configure
+++ b/configure
@@ -3052,6 +3052,7 @@
 	MACHDEP="$ac_md_system$ac_md_release"
 
 	case $MACHDEP in
+	linux*) MACHDEP="linux2";;
 	cygwin*) MACHDEP="cygwin";;
 	darwin*) MACHDEP="darwin";;
         irix646) MACHDEP="irix6";;
diff --git a/configure.in b/configure.in
index ec9a24a..ec390e5 100644
--- a/configure.in
+++ b/configure.in
@@ -304,6 +304,7 @@
 	MACHDEP="$ac_md_system$ac_md_release"
 
 	case $MACHDEP in
+	linux*) MACHDEP="linux2";;
 	cygwin*) MACHDEP="cygwin";;
 	darwin*) MACHDEP="darwin";;
         irix646) MACHDEP="irix6";;