Add D front-end, libphobos library, and D2 testsuite.

ChangeLog:

	* Makefile.def (target_modules): Add libphobos.
	(flags_to_pass): Add GDC, GDCFLAGS, GDC_FOR_TARGET and
	GDCFLAGS_FOR_TARGET.
	(dependencies): Make libphobos depend on libatomic, libbacktrace
	configure, and zlib configure.
	(language): Add language d.
	* Makefile.in: Rebuild.
	* Makefile.tpl (BUILD_EXPORTS): Add GDC and GDCFLAGS.
	(HOST_EXPORTS): Add GDC.
	(POSTSTAGE1_HOST_EXPORTS): Add GDC and GDC_FOR_BUILD.
	(BASE_TARGET_EXPORTS): Add GDC.
	(GDC_FOR_BUILD, GDC, GDCFLAGS): New variables.
	(GDC_FOR_TARGET, GDC_FLAGS_FOR_TARGET): New variables.
	(EXTRA_HOST_FLAGS): Add GDC.
	(STAGE1_FLAGS_TO_PASS): Add GDC.
	(EXTRA_TARGET_FLAGS): Add GDC and GDCFLAGS.
	* config-ml.in: Treat GDC and GDCFLAGS like other compiler/flag
	environment variables.
	* configure: Rebuild.
	* configure.ac: Add target-libphobos to target_libraries.  Set and
	substitute GDC_FOR_BUILD and GDC_FOR_TARGET.

config/ChangeLog:

	* multi.m4: Set GDC.

gcc/ChangeLog:

	* Makefile.in (tm_d_file_list, tm_d_include_list): New variables.
	(TM_D_H, D_TARGET_DEF, D_TARGET_H, D_TARGET_OBJS): New variables.
	(tm_d.h, cs-tm_d.h, default-d.o): New rules.
	(d/d-target-hooks-def.h, s-d-target-hooks-def-h): New rules.
	(s-tm-texi): Also check timestamp on d-target.def.
	(generated_files): Add TM_D_H and d-target-hooks-def.h.
	(build/genhooks.o): Also depend on D_TARGET_DEF.
	* config.gcc (tm_d_file, d_target_objs, target_has_targetdm): New
	variables.
	* config/aarch64/aarch64-d.c: New file.
	* config/aarch64/aarch64-linux.h (GNU_USER_TARGET_D_CRITSEC_SIZE):
	Define.
	* config/aarch64/aarch64-protos.h (aarch64_d_target_versions): New
	prototype.
	* config/aarch64/aarch64.h (TARGET_D_CPU_VERSIONS): Define.
	* config/aarch64/t-aarch64 (aarch64-d.o): New rule.
	* config/arm/arm-d.c: New file.
	* config/arm/arm-protos.h (arm_d_target_versions): New prototype.
	* config/arm/arm.h (TARGET_D_CPU_VERSIONS): Define.
	* config/arm/linux-eabi.h (EXTRA_TARGET_D_OS_VERSIONS): Define.
	* config/arm/t-arm (arm-d.o): New rule.
	* config/default-d.c: New file.
	* config/glibc-d.c: New file.
	* config/gnu.h (GNU_USER_TARGET_D_OS_VERSIONS): Define.
	* config/i386/i386-d.c: New file.
	* config/i386/i386-protos.h (ix86_d_target_versions): New prototype.
	* config/i386/i386.h (TARGET_D_CPU_VERSIONS): Define.
	* config/i386/linux-common.h (EXTRA_TARGET_D_OS_VERSIONS): Define.
	(GNU_USER_TARGET_D_CRITSEC_SIZE): Define.
	* config/i386/t-i386 (i386-d.o): New rule.
	* config/kfreebsd-gnu.h (GNU_USER_TARGET_D_OS_VERSIONS): Define.
	* config/kopensolaris-gnu.h (GNU_USER_TARGET_D_OS_VERSIONS): Define.
	* config/linux-android.h (ANDROID_TARGET_D_OS_VERSIONS): Define.
	* config/linux.h (GNU_USER_TARGET_D_OS_VERSIONS): Define.
	* config/mips/linux-common.h (EXTRA_TARGET_D_OS_VERSIONS): Define.
	* config/mips/mips-d.c: New file.
	* config/mips/mips-protos.h (mips_d_target_versions): New prototype.
	* config/mips/mips.h (TARGET_D_CPU_VERSIONS): Define.
	* config/mips/t-mips (mips-d.o): New rule.
	* config/powerpcspe/linux.h (GNU_USER_TARGET_D_OS_VERSIONS): Define.
	* config/powerpcspe/linux64.h (GNU_USER_TARGET_D_OS_VERSIONS): Define.
	* config/powerpcspe/powerpcspe-d.c: New file.
	* config/powerpcspe/powerpcspe-protos.h (rs6000_d_target_versions):
	New prototype.
	* config/powerpcspe/powerpcspe.c (rs6000_output_function_epilogue):
	Support GNU D by using 0 as the language type.
	* config/powerpcspe/powerpcspe.h (TARGET_D_CPU_VERSIONS): Define.
	* config/powerpcspe/t-powerpcspe (powerpcspe-d.o): New rule.
	* config/riscv/riscv-d.c: New file.
	* config/riscv/riscv-protos.h (riscv_d_target_versions): New
	prototype.
	* config/riscv/riscv.h (TARGET_D_CPU_VERSIONS): Define.
	* config/riscv/t-riscv (riscv-d.o): New rule.
	* config/rs6000/linux.h (GNU_USER_TARGET_D_OS_VERSIONS): Define.
	* config/rs6000/linux64.h (GNU_USER_TARGET_D_OS_VERSIONS): Define.
	* config/rs6000/rs6000-d.c: New file.
	* config/rs6000/rs6000-protos.h (rs6000_d_target_versions): New
	prototype.
	* config/rs6000/rs6000.c (rs6000_output_function_epilogue):
	Support GNU D by using 0 as the language type.
	* config/rs6000/rs6000.h (TARGET_D_CPU_VERSIONS): Define.
	* config/rs6000/t-rs6000 (rs6000-d.o): New rule.
	* config/s390/s390-d.c: New file.
	* config/s390/s390-protos.h (s390_d_target_versions): New prototype.
	* config/s390/s390.h (TARGET_D_CPU_VERSIONS): Define.
	* config/s390/t-s390 (s390-d.o): New rule.
	* config/sparc/sparc-d.c: New file.
	* config/sparc/sparc-protos.h (sparc_d_target_versions): New
	prototype.
	* config/sparc/sparc.h (TARGET_D_CPU_VERSIONS): Define.
	* config/sparc/t-sparc (sparc-d.o): New rule.
	* config/t-glibc (glibc-d.o): New rule.
	* configure: Regenerated.
	* configure.ac (tm_d_file): New variable.
	(tm_d_file_list, tm_d_include_list, d_target_objs): Add substitutes.
	* doc/contrib.texi (Contributors): Add self for the D frontend.
	* doc/frontends.texi (G++ and GCC): Mention D as a supported language.
	* doc/install.texi (Configuration): Mention libphobos as an option for
	--enable-shared.  Mention d as an option for --enable-languages.
	(Testing): Mention check-d as a target.
	* doc/invoke.texi (Overall Options): Mention .d, .dd, and .di as file
	name suffixes.  Mention d as a -x option.
	* doc/sourcebuild.texi (Top Level): Mention libphobos.
	* doc/standards.texi (Standards): Add section on D language.
	* doc/tm.texi: Regenerated.
	* doc/tm.texi.in: Add @node for D language and ABI, and @hook for
	TARGET_CPU_VERSIONS, TARGET_D_OS_VERSIONS, and TARGET_D_CRITSEC_SIZE.
	* dwarf2out.c (is_dlang): New function.
	(gen_compile_unit_die): Use DW_LANG_D for D.
	(declare_in_namespace): Return module die for D, instead of adding
	extra declarations into the namespace.
	(gen_namespace_die): Generate DW_TAG_module for D.
	(gen_decl_die): Handle CONST_DECLSs for D.
	(dwarf2out_decl): Likewise.
	(prune_unused_types_walk_local_classes): Handle DW_tag_interface_type.
	(prune_unused_types_walk): Handle DW_tag_interface_type same as other
	kinds of aggregates.
	* gcc.c (default_compilers): Add entries for .d, .dd and .di.
	* genhooks.c: Include d/d-target.def.

gcc/po/ChangeLog:

	* EXCLUDES: Add sources from d/dmd.

gcc/testsuite/ChangeLog:

	* gcc.misc-tests/help.exp: Add D to option descriptions check.
	* gdc.dg/asan/asan.exp: New file.
	* gdc.dg/asan/gdc272.d: New test.
	* gdc.dg/compilable.d: New test.
	* gdc.dg/dg.exp: New file.
	* gdc.dg/gdc254.d: New test.
	* gdc.dg/gdc260.d: New test.
	* gdc.dg/gdc270a.d: New test.
	* gdc.dg/gdc270b.d: New test.
	* gdc.dg/gdc282.d: New test.
	* gdc.dg/gdc283.d: New test.
	* gdc.dg/imports/gdc170.d: New test.
	* gdc.dg/imports/gdc231.d: New test.
	* gdc.dg/imports/gdc239.d: New test.
	* gdc.dg/imports/gdc241a.d: New test.
	* gdc.dg/imports/gdc241b.d: New test.
	* gdc.dg/imports/gdc251a.d: New test.
	* gdc.dg/imports/gdc251b.d: New test.
	* gdc.dg/imports/gdc253.d: New test.
	* gdc.dg/imports/gdc254a.d: New test.
	* gdc.dg/imports/gdc256.d: New test.
	* gdc.dg/imports/gdc27.d: New test.
	* gdc.dg/imports/gdcpkg256/package.d: New test.
	* gdc.dg/imports/runnable.d: New test.
	* gdc.dg/link.d: New test.
	* gdc.dg/lto/lto.exp: New file.
	* gdc.dg/lto/ltotests_0.d: New test.
	* gdc.dg/lto/ltotests_1.d: New test.
	* gdc.dg/runnable.d: New test.
	* gdc.dg/simd.d: New test.
	* gdc.test/gdc-test.exp: New file.
	* lib/gdc-dg.exp: New file.
	* lib/gdc.exp: New file.

libphobos/ChangeLog:

	* Makefile.am: New file.
	* Makefile.in: New file.
	* acinclude.m4: New file.
	* aclocal.m4: New file.
	* config.h.in: New file.
	* configure: New file.
	* configure.ac: New file.
	* d_rules.am: New file.
	* libdruntime/Makefile.am: New file.
	* libdruntime/Makefile.in: New file.
	* libdruntime/__entrypoint.di: New file.
	* libdruntime/__main.di: New file.
	* libdruntime/gcc/attribute.d: New file.
	* libdruntime/gcc/backtrace.d: New file.
	* libdruntime/gcc/builtins.d: New file.
	* libdruntime/gcc/config.d.in: New file.
	* libdruntime/gcc/deh.d: New file.
	* libdruntime/gcc/libbacktrace.d.in: New file.
	* libdruntime/gcc/unwind/arm.d: New file.
	* libdruntime/gcc/unwind/arm_common.d: New file.
	* libdruntime/gcc/unwind/c6x.d: New file.
	* libdruntime/gcc/unwind/generic.d: New file.
	* libdruntime/gcc/unwind/package.d: New file.
	* libdruntime/gcc/unwind/pe.d: New file.
	* m4/autoconf.m4: New file.
	* m4/druntime.m4: New file.
	* m4/druntime/cpu.m4: New file.
	* m4/druntime/libraries.m4: New file.
	* m4/druntime/os.m4: New file.
	* m4/gcc_support.m4: New file.
	* m4/gdc.m4: New file.
	* m4/libtool.m4: New file.
	* src/Makefile.am: New file.
	* src/Makefile.in: New file.
	* src/libgphobos.spec.in: New file.
	* testsuite/Makefile.am: New file.
	* testsuite/Makefile.in: New file.
	* testsuite/config/default.exp: New file.
	* testsuite/lib/libphobos-dg.exp: New file.
	* testsuite/lib/libphobos.exp: New file.
	* testsuite/testsuite_flags.in: New file.

From-SVN: r265573

1 files changed, 1594 insertions, 0 deletions

diff --git a/libphobos/libdruntime/core/sys/posix/netinet/in_.d b/libphobos/libdruntime/core/sys/posix/netinet/in_.d
new file mode 100644
index 0000000..82da6c7
--- /dev/null
+++ b/libphobos/libdruntime/core/sys/posix/netinet/in_.d
@@ -0,0 +1,1594 @@
+/**
+ * D header file for POSIX.
+ *
+ * Copyright: Copyright Sean Kelly 2005 - 2009.
+ * License:   $(HTTP www.boost.org/LICENSE_1_0.txt, Boost License 1.0).
+ * Authors:   Sean Kelly
+ * Standards: The Open Group Base Specifications Issue 6, IEEE Std 1003.1, 2004 Edition
+ */
+
+/*          Copyright Sean Kelly 2005 - 2009.
+ * Distributed under the Boost Software License, Version 1.0.
+ *    (See accompanying file LICENSE or copy at
+ *          http://www.boost.org/LICENSE_1_0.txt)
+ */
+module core.sys.posix.netinet.in_;
+
+private import core.sys.posix.config;
+public import core.stdc.inttypes; // for uint32_t, uint16_t, uint8_t
+public import core.sys.posix.arpa.inet;
+public import core.sys.posix.sys.socket; // for sa_family_t
+
+version (OSX)
+    version = Darwin;
+else version (iOS)
+    version = Darwin;
+else version (TVOS)
+    version = Darwin;
+else version (WatchOS)
+    version = Darwin;
+
+version (Posix):
+extern (C) nothrow @nogc:
+
+//
+// Required
+//
+/*
+NOTE: The following must must be defined in core.sys.posix.arpa.inet to break
+      a circular import: in_port_t, in_addr_t, struct in_addr, INET_ADDRSTRLEN.
+
+in_port_t
+in_addr_t
+
+sa_family_t // from core.sys.posix.sys.socket
+uint8_t     // from core.stdc.inttypes
+uint32_t    // from core.stdc.inttypes
+
+struct in_addr
+{
+    in_addr_t   s_addr;
+}
+
+struct sockaddr_in
+{
+    sa_family_t sin_family;
+    in_port_t   sin_port;
+    in_addr     sin_addr;
+}
+
+IPPROTO_IP
+IPPROTO_ICMP
+IPPROTO_TCP
+IPPROTO_UDP
+
+INADDR_ANY
+INADDR_BROADCAST
+
+INET_ADDRSTRLEN
+
+htonl() // from core.sys.posix.arpa.inet
+htons() // from core.sys.posix.arpa.inet
+ntohl() // from core.sys.posix.arpa.inet
+ntohs() // from core.sys.posix.arpa.inet
+*/
+
+version (CRuntime_Glibc)
+{
+    // Some networking constants are subtly different for glibc, linux kernel
+    // constants are also provided below.
+
+    //alias uint16_t in_port_t;
+    //alias uint32_t in_addr_t;
+
+    //struct in_addr
+    //{
+    //    in_addr_t s_addr;
+    //}
+
+    private enum __SOCK_SIZE__ = 16;
+
+    struct sockaddr_in
+    {
+        sa_family_t sin_family;
+        in_port_t   sin_port;
+        in_addr     sin_addr;
+
+        /* Pad to size of `struct sockaddr'. */
+        ubyte[__SOCK_SIZE__ - sa_family_t.sizeof -
+              in_port_t.sizeof - in_addr.sizeof] __pad;
+    }
+
+    enum
+    {
+        IPPROTO_IP   = 0,
+        IPPROTO_ICMP = 1,
+        IPPROTO_IGMP = 2,
+        IPPROTO_GGP  = 3,
+        IPPROTO_TCP  = 6,
+        IPPROTO_PUP  = 12,
+        IPPROTO_UDP  = 17,
+        IPPROTO_IDP  = 22,
+        IPPROTO_ND   = 77,
+        IPPROTO_MAX  = 256
+    }
+
+    enum : uint
+    {
+        INADDR_ANY       = 0x00000000,
+        INADDR_BROADCAST = 0xffffffff,
+        INADDR_LOOPBACK  = 0x7F000001,
+        INADDR_NONE      = 0xFFFFFFFF
+    }
+
+    //enum INET_ADDRSTRLEN       = 16;
+}
+else version (Darwin)
+{
+    //alias uint16_t in_port_t;
+    //alias uint32_t in_addr_t;
+
+    //struct in_addr
+    //{
+    //    in_addr_t s_addr;
+    //}
+
+    private enum __SOCK_SIZE__ = 16;
+
+    struct sockaddr_in
+    {
+        ubyte       sin_len;
+        sa_family_t sin_family;
+        in_port_t   sin_port;
+        in_addr     sin_addr;
+        ubyte[8]    sin_zero;
+    }
+
+    enum
+    {
+        IPPROTO_IP   = 0,
+        IPPROTO_ICMP = 1,
+        IPPROTO_IGMP = 2,
+        IPPROTO_GGP  = 3,
+        IPPROTO_TCP  = 6,
+        IPPROTO_PUP  = 12,
+        IPPROTO_UDP  = 17,
+        IPPROTO_IDP  = 22,
+        IPPROTO_ND   = 77,
+        IPPROTO_MAX  = 256
+    }
+
+    enum : uint
+    {
+        INADDR_ANY       = 0x00000000,
+        INADDR_BROADCAST = 0xffffffff,
+        INADDR_LOOPBACK  = 0x7F000001,
+        INADDR_NONE      = 0xFFFFFFFF
+    }
+
+    //enum INET_ADDRSTRLEN       = 16;
+}
+else version (FreeBSD)
+{
+    //alias uint16_t in_port_t;
+    //alias uint32_t in_addr_t;
+
+    //struct in_addr
+    //{
+    //    in_addr_t s_addr;
+    //}
+
+    struct sockaddr_in
+    {
+        ubyte       sin_len;
+        sa_family_t sin_family;
+        in_port_t   sin_port;
+        in_addr     sin_addr;
+        ubyte[8]    sin_zero;
+    }
+
+    enum
+    {
+        IPPROTO_IP   = 0,
+        IPPROTO_ICMP = 1,
+        IPPROTO_IGMP = 2,
+        IPPROTO_GGP  = 3,
+        IPPROTO_TCP  = 6,
+        IPPROTO_PUP  = 12,
+        IPPROTO_UDP  = 17,
+        IPPROTO_IDP  = 22,
+        IPPROTO_ND   = 77,
+        IPPROTO_MAX  = 256
+    }
+
+    enum : uint
+    {
+        INADDR_ANY       = 0x00000000,
+        INADDR_BROADCAST = 0xffffffff,
+        INADDR_LOOPBACK  = 0x7f000001,
+        INADDR_NONE      = 0xffffffff
+    }
+
+    //enum INET_ADDRSTRLEN       = 16;
+}
+else version (NetBSD)
+{
+    struct sockaddr_in
+    {
+        ubyte       sin_len;
+        sa_family_t sin_family;
+        in_port_t   sin_port;
+        in_addr     sin_addr;
+        ubyte[8]    sin_zero;
+    }
+
+    enum
+    {
+        IPPROTO_IP   = 0,
+        IPPROTO_ICMP = 1,
+        IPPROTO_IGMP = 2,
+        IPPROTO_GGP  = 3,
+        IPPROTO_TCP  = 6,
+        IPPROTO_PUP  = 12,
+        IPPROTO_UDP  = 17,
+        IPPROTO_IDP  = 22,
+        IPPROTO_ND   = 77,
+        IPPROTO_MAX  = 256
+    }
+
+    enum : uint
+    {
+        INADDR_ANY       = 0x00000000,
+        INADDR_BROADCAST = 0xffffffff,
+        INADDR_LOOPBACK  = 0x7f000001,
+        INADDR_NONE      = 0xffffffff
+    }
+
+    //enum INET_ADDRSTRLEN       = 16;
+}
+else version (DragonFlyBSD)
+{
+    //alias uint16_t in_port_t;
+    //alias uint32_t in_addr_t;
+
+    //struct in_addr
+    //{
+    //    in_addr_t s_addr;
+    //}
+
+    struct sockaddr_in
+    {
+        ubyte       sin_len;
+        sa_family_t sin_family;
+        in_port_t   sin_port;
+        in_addr     sin_addr;
+        ubyte[8]    sin_zero;
+    }
+
+    enum
+    {
+        IPPROTO_IP   = 0,
+        IPPROTO_ICMP = 1,
+        IPPROTO_IGMP = 2,
+        IPPROTO_GGP  = 3,
+        IPPROTO_TCP  = 6,
+        IPPROTO_PUP  = 12,
+        IPPROTO_UDP  = 17,
+        IPPROTO_IDP  = 22,
+        IPPROTO_ND   = 77,
+        IPPROTO_MAX  = 256
+    }
+
+    enum : uint
+    {
+        INADDR_ANY       = 0x00000000,
+        INADDR_LOOPBACK  = 0x7f000001,
+        INADDR_BROADCAST = 0xffffffff,
+        INADDR_NONE      = 0xffffffff,
+    }
+
+    //enum INET_ADDRSTRLEN       = 16;
+}
+else version (CRuntime_UClibc)
+{
+    private enum __SOCK_SIZE__ = 16;
+
+    struct sockaddr_in
+    {
+        sa_family_t sin_family;
+        in_port_t   sin_port;
+        in_addr     sin_addr;
+
+        ubyte[__SOCK_SIZE__ - short.sizeof -
+              ushort.sizeof - in_addr.sizeof] __pad;
+    }
+
+    enum
+    {
+        IPPROTO_IP      = 0,
+        IPPROTO_ICMP    = 1,
+        IPPROTO_IGMP    = 2,
+        IPPROTO_GGP     = 3,
+        IPPROTO_IPIP    = 4,
+        IPPROTO_TCP     = 6,
+        IPPROTO_EGP     = 8,
+        IPPROTO_PUP     = 12,
+        IPPROTO_UDP     = 17,
+        IPPROTO_IDP     = 22,
+        IPPROTO_TP      = 29,
+        IPPROTO_DCCP    = 33,
+        IPPROTO_RSVP    = 46,
+        IPPROTO_GRE     = 47,
+        IPPROTO_ESP     = 50,
+        IPPROTO_AH      = 51,
+        IPPROTO_MTP     = 92,
+        IPPROTO_BEETPH  = 94,
+        IPPROTO_ENCAP   = 98,
+        IPPROTO_PIM     = 103,
+        IPPROTO_COMP    = 108,
+        IPPROTO_SCTP    = 132,
+        IPPROTO_UDPLITE = 136,
+        IPPROTO_MPLS    = 137,
+        IPPROTO_MAX     = 256
+    }
+
+    enum : uint
+    {
+        INADDR_ANY       = 0x00000000,
+        INADDR_BROADCAST = 0xffffffff,
+        IN_LOOPBACKNET   = 127,
+        INADDR_LOOPBACK  = 0x7F000001,
+        INADDR_NONE      = 0xFFFFFFFF
+    }
+}
+else version (Solaris)
+{
+    struct sockaddr_in
+    {
+        sa_family_t sin_family;
+        in_port_t   sin_port;
+        in_addr     sin_addr;
+        ubyte[8]    sin_zero;
+    }
+
+    enum
+    {
+        IPPROTO_IP   = 0,
+        IPPROTO_ICMP = 1,
+        IPPROTO_IGMP = 2,
+        IPPROTO_GGP  = 3,
+        IPPROTO_TCP  = 6,
+        IPPROTO_PUP  = 12,
+        IPPROTO_UDP  = 17,
+        IPPROTO_IDP  = 22,
+        IPPROTO_ND   = 77,
+        IPPROTO_MAX  = 256
+    }
+
+    enum : uint
+    {
+        INADDR_ANY       = 0x00000000,
+        INADDR_BROADCAST = 0xffffffff,
+        INADDR_LOOPBACK  = 0x7f000001,
+        INADDR_NONE      = 0xffffffff
+    }
+}
+else version (linux)
+{
+    private enum __SOCK_SIZE__ = 16;
+
+    struct sockaddr_in
+    {
+        sa_family_t sin_family;
+        ushort      sin_port;
+        in_addr     sin_addr;
+
+        /* Pad to size of `struct sockaddr'. */
+        ubyte[__SOCK_SIZE__ - sa_family_t.sizeof -
+              ushort.sizeof - in_addr.sizeof] __pad;
+    }
+
+    enum
+    {
+        IPPROTO_IP   = 0,
+        IPPROTO_ICMP = 1,
+        IPPROTO_IGMP = 2,
+        IPPROTO_GGP  = 3,
+        IPPROTO_TCP  = 6,
+        IPPROTO_PUP  = 12,
+        IPPROTO_UDP  = 17,
+        IPPROTO_IDP  = 22
+    }
+
+    enum : c_ulong
+    {
+        INADDR_ANY       = 0x00000000,
+        INADDR_BROADCAST = 0xffffffff,
+        INADDR_LOOPBACK  = 0x7f000001,
+        INADDR_NONE      = 0xFFFFFFFF
+    }
+}
+
+
+//
+// IPV6 (IP6)
+//
+/*
+NOTE: The following must must be defined in core.sys.posix.arpa.inet to break
+      a circular import: INET6_ADDRSTRLEN.
+
+struct in6_addr
+{
+    uint8_t[16] s6_addr;
+}
+
+struct sockaddr_in6
+{
+    sa_family_t sin6_family;
+    in_port_t   sin6_port;
+    uint32_t    sin6_flowinfo;
+    in6_addr    sin6_addr;
+    uint32_t    sin6_scope_id;
+}
+
+extern in6_addr in6addr_any;
+extern in6_addr in6addr_loopback;
+
+struct ipv6_mreq
+{
+    in6_addr    ipv6mr_multiaddr;
+    uint        ipv6mr_interface;
+}
+
+IPPROTO_IPV6
+
+INET6_ADDRSTRLEN
+
+IPV6_JOIN_GROUP
+IPV6_LEAVE_GROUP
+IPV6_MULTICAST_HOPS
+IPV6_MULTICAST_IF
+IPV6_MULTICAST_LOOP
+IPV6_UNICAST_HOPS
+IPV6_V6ONLY
+
+// macros
+int IN6_IS_ADDR_UNSPECIFIED(in6_addr*)
+int IN6_IS_ADDR_LOOPBACK(in6_addr*)
+int IN6_IS_ADDR_MULTICAST(in6_addr*)
+int IN6_IS_ADDR_LINKLOCAL(in6_addr*)
+int IN6_IS_ADDR_SITELOCAL(in6_addr*)
+int IN6_IS_ADDR_V4MAPPED(in6_addr*)
+int IN6_IS_ADDR_V4COMPAT(in6_addr*)
+int IN6_IS_ADDR_MC_NODELOCAL(in6_addr*)
+int IN6_IS_ADDR_MC_LINKLOCAL(in6_addr*)
+int IN6_IS_ADDR_MC_SITELOCAL(in6_addr*)
+int IN6_IS_ADDR_MC_ORGLOCAL(in6_addr*)
+int IN6_IS_ADDR_MC_GLOBAL(in6_addr*)
+*/
+
+version (CRuntime_Glibc)
+{
+    struct in6_addr
+    {
+        union
+        {
+            uint8_t[16] s6_addr;
+            uint16_t[8] s6_addr16;
+            uint32_t[4] s6_addr32;
+        }
+    }
+
+    struct sockaddr_in6
+    {
+        sa_family_t sin6_family;
+        in_port_t   sin6_port;
+        uint32_t    sin6_flowinfo;
+        in6_addr    sin6_addr;
+        uint32_t    sin6_scope_id;
+    }
+
+    extern __gshared immutable in6_addr in6addr_any;
+    extern __gshared immutable in6_addr in6addr_loopback;
+
+    struct ipv6_mreq
+    {
+        in6_addr    ipv6mr_multiaddr;
+        uint        ipv6mr_interface;
+    }
+
+    enum : uint
+    {
+        IPPROTO_IPV6        = 41,
+
+        //INET6_ADDRSTRLEN    = 46,
+
+        IPV6_JOIN_GROUP     = 20,
+        IPV6_LEAVE_GROUP    = 21,
+        IPV6_MULTICAST_HOPS = 18,
+        IPV6_MULTICAST_IF   = 17,
+        IPV6_MULTICAST_LOOP = 19,
+        IPV6_UNICAST_HOPS   = 16,
+        IPV6_V6ONLY         = 26
+    }
+
+    // macros
+    extern (D) int IN6_IS_ADDR_UNSPECIFIED( in6_addr* addr ) pure
+    {
+        return (cast(uint32_t*) addr)[0] == 0 &&
+               (cast(uint32_t*) addr)[1] == 0 &&
+               (cast(uint32_t*) addr)[2] == 0 &&
+               (cast(uint32_t*) addr)[3] == 0;
+    }
+
+    extern (D) int IN6_IS_ADDR_LOOPBACK( in6_addr* addr ) pure
+    {
+        return (cast(uint32_t*) addr)[0] == 0  &&
+               (cast(uint32_t*) addr)[1] == 0  &&
+               (cast(uint32_t*) addr)[2] == 0  &&
+               (cast(uint32_t*) addr)[3] == htonl( 1 );
+    }
+
+    extern (D) int IN6_IS_ADDR_MULTICAST( in6_addr* addr ) pure
+    {
+        return (cast(uint8_t*) addr)[0] == 0xff;
+    }
+
+    extern (D) int IN6_IS_ADDR_LINKLOCAL( in6_addr* addr ) pure
+    {
+        return ((cast(uint32_t*) addr)[0] & htonl( 0xffc00000 )) == htonl( 0xfe800000 );
+    }
+
+    extern (D) int IN6_IS_ADDR_SITELOCAL( in6_addr* addr ) pure
+    {
+        return ((cast(uint32_t*) addr)[0] & htonl( 0xffc00000 )) == htonl( 0xfec00000 );
+    }
+
+    extern (D) int IN6_IS_ADDR_V4MAPPED( in6_addr* addr ) pure
+    {
+        return (cast(uint32_t*) addr)[0] == 0 &&
+               (cast(uint32_t*) addr)[1] == 0 &&
+               (cast(uint32_t*) addr)[2] == htonl( 0xffff );
+    }
+
+    extern (D) int IN6_IS_ADDR_V4COMPAT( in6_addr* addr ) pure
+    {
+        return (cast(uint32_t*) addr)[0] == 0 &&
+               (cast(uint32_t*) addr)[1] == 0 &&
+               (cast(uint32_t*) addr)[2] == 0 &&
+               ntohl( (cast(uint32_t*) addr)[3] ) > 1;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_NODELOCAL( in6_addr* addr ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST( addr ) &&
+               ((cast(uint8_t*) addr)[1] & 0xf) == 0x1;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_LINKLOCAL( in6_addr* addr ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST( addr ) &&
+               ((cast(uint8_t*) addr)[1] & 0xf) == 0x2;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_SITELOCAL( in6_addr* addr ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST(addr) &&
+               ((cast(uint8_t*) addr)[1] & 0xf) == 0x5;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_ORGLOCAL( in6_addr* addr ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST( addr) &&
+               ((cast(uint8_t*) addr)[1] & 0xf) == 0x8;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_GLOBAL( in6_addr* addr ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST( addr ) &&
+               ((cast(uint8_t*) addr)[1] & 0xf) == 0xe;
+    }
+}
+else version (Darwin)
+{
+    struct in6_addr
+    {
+        union
+        {
+            uint8_t[16] s6_addr;
+            uint16_t[8] s6_addr16;
+            uint32_t[4] s6_addr32;
+        }
+    }
+
+    struct sockaddr_in6
+    {
+        uint8_t     sin6_len;
+        sa_family_t sin6_family;
+        in_port_t   sin6_port;
+        uint32_t    sin6_flowinfo;
+        in6_addr    sin6_addr;
+        uint32_t    sin6_scope_id;
+    }
+
+    extern __gshared immutable in6_addr in6addr_any;
+    extern __gshared immutable in6_addr in6addr_loopback;
+
+    struct ipv6_mreq
+    {
+        in6_addr    ipv6mr_multiaddr;
+        uint        ipv6mr_interface;
+    }
+
+    enum : uint
+    {
+        IPPROTO_IPV6        = 41,
+
+        //INET6_ADDRSTRLEN    = 46,
+
+        IPV6_JOIN_GROUP     = 12,
+        IPV6_LEAVE_GROUP    = 13,
+        IPV6_MULTICAST_HOPS = 10,
+        IPV6_MULTICAST_IF   = 9,
+        IPV6_MULTICAST_LOOP = 11,
+        IPV6_UNICAST_HOPS   = 4,
+        IPV6_V6ONLY         = 27
+    }
+
+    // macros
+    extern (D) int IN6_IS_ADDR_UNSPECIFIED( in6_addr* addr ) pure
+    {
+        return (cast(uint32_t*) addr)[0] == 0 &&
+               (cast(uint32_t*) addr)[1] == 0 &&
+               (cast(uint32_t*) addr)[2] == 0 &&
+               (cast(uint32_t*) addr)[3] == 0;
+    }
+
+    extern (D) int IN6_IS_ADDR_LOOPBACK( in6_addr* addr ) pure
+    {
+        return (cast(uint32_t*) addr)[0] == 0  &&
+               (cast(uint32_t*) addr)[1] == 0  &&
+               (cast(uint32_t*) addr)[2] == 0  &&
+               (cast(uint32_t*) addr)[3] == ntohl( 1 );
+    }
+
+    extern (D) int IN6_IS_ADDR_MULTICAST( in6_addr* addr ) pure
+    {
+        return addr.s6_addr[0] == 0xff;
+    }
+
+    extern (D) int IN6_IS_ADDR_LINKLOCAL( in6_addr* addr ) pure
+    {
+        return addr.s6_addr[0] == 0xfe && (addr.s6_addr[1] & 0xc0) == 0x80;
+    }
+
+    extern (D) int IN6_IS_ADDR_SITELOCAL( in6_addr* addr ) pure
+    {
+        return addr.s6_addr[0] == 0xfe && (addr.s6_addr[1] & 0xc0) == 0xc0;
+    }
+
+    extern (D) int IN6_IS_ADDR_V4MAPPED( in6_addr* addr ) pure
+    {
+        return (cast(uint32_t*) addr)[0] == 0 &&
+               (cast(uint32_t*) addr)[1] == 0 &&
+               (cast(uint32_t*) addr)[2] == ntohl( 0x0000ffff );
+    }
+
+    extern (D) int IN6_IS_ADDR_V4COMPAT( in6_addr* addr ) pure
+    {
+        return (cast(uint32_t*) addr)[0] == 0 &&
+               (cast(uint32_t*) addr)[1] == 0 &&
+               (cast(uint32_t*) addr)[2] == 0 &&
+               (cast(uint32_t*) addr)[3] != 0 &&
+               (cast(uint32_t*) addr)[3] != ntohl( 1 );
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_NODELOCAL( in6_addr* addr ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST( addr ) &&
+               ((cast(uint8_t*) addr)[1] & 0xf) == 0x1;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_LINKLOCAL( in6_addr* addr ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST( addr ) &&
+               ((cast(uint8_t*) addr)[1] & 0xf) == 0x2;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_SITELOCAL( in6_addr* addr ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST(addr) &&
+               ((cast(uint8_t*) addr)[1] & 0xf) == 0x5;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_ORGLOCAL( in6_addr* addr ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST( addr) &&
+               ((cast(uint8_t*) addr)[1] & 0xf) == 0x8;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_GLOBAL( in6_addr* addr ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST( addr ) &&
+               ((cast(uint8_t*) addr)[1] & 0xf) == 0xe;
+    }
+}
+else version (FreeBSD)
+{
+    struct in6_addr
+    {
+        union
+        {
+            uint8_t[16] s6_addr;
+            uint16_t[8] s6_addr16;
+            uint32_t[4] s6_addr32;
+        }
+    }
+
+    struct sockaddr_in6
+    {
+        uint8_t     sin6_len;
+        sa_family_t sin6_family;
+        in_port_t   sin6_port;
+        uint32_t    sin6_flowinfo;
+        in6_addr    sin6_addr;
+        uint32_t    sin6_scope_id;
+    }
+
+    extern __gshared immutable in6_addr in6addr_any;
+    extern __gshared immutable in6_addr in6addr_loopback;
+
+    struct ipv6_mreq
+    {
+        in6_addr    ipv6mr_multiaddr;
+        uint        ipv6mr_interface;
+    }
+
+    enum : uint
+    {
+        IPPROTO_IPV6        = 41,
+
+        //INET6_ADDRSTRLEN    = 46,
+
+        IPV6_JOIN_GROUP     = 12,
+        IPV6_LEAVE_GROUP    = 13,
+        IPV6_MULTICAST_HOPS = 10,
+        IPV6_MULTICAST_IF   = 9,
+        IPV6_MULTICAST_LOOP = 11,
+        IPV6_UNICAST_HOPS   = 4,
+        IPV6_V6ONLY         = 27,
+    }
+
+    private enum
+    {
+        __IPV6_ADDR_SCOPE_NODELOCAL     = 0x01,
+        __IPV6_ADDR_SCOPE_INTFACELOCAL  = 0x01,
+        __IPV6_ADDR_SCOPE_LINKLOCAL     = 0x02,
+        __IPV6_ADDR_SCOPE_SITELOCAL     = 0x05,
+        __IPV6_ADDR_SCOPE_ORGLOCAL      = 0x08,
+        __IPV6_ADDR_SCOPE_GLOBAL        = 0x0e,
+    }
+
+    // macros
+    extern (D) int IN6_IS_ADDR_UNSPECIFIED( in in6_addr* a ) pure
+    {
+        return (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[0]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[4]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[8]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[12]) == 0);
+    }
+
+    extern (D) int IN6_IS_ADDR_LOOPBACK( in in6_addr* a ) pure
+    {
+        return (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[0]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[4]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[8]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[12]) == ntohl(1));
+    }
+
+    extern (D) int IN6_IS_ADDR_V4COMPAT( in in6_addr* a ) pure
+    {
+        return (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[0]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[4]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[8]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[12]) != 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[12]) != ntohl(1));
+    }
+
+    extern (D) int IN6_IS_ADDR_V4MAPPED( in in6_addr* a ) pure
+    {
+        return (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[0]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[4]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[8]) == ntohl(0x0000ffff));
+    }
+
+    extern (D) int IN6_IS_ADDR_LINKLOCAL( in in6_addr* a ) pure
+    {
+        return a.s6_addr[0] == 0xfe && (a.s6_addr[1] & 0xc0) == 0x80;
+    }
+
+    extern (D) int IN6_IS_ADDR_SITELOCAL( in in6_addr* a ) pure
+    {
+        return a.s6_addr[0] == 0xfe && (a.s6_addr[1] & 0xc0) == 0xc0;
+    }
+
+    extern (D) int IN6_IS_ADDR_MULTICAST( in in6_addr* a ) pure
+    {
+        return a.s6_addr[0] == 0xff;
+    }
+
+    extern (D) uint8_t __IPV6_ADDR_MC_SCOPE( in in6_addr* a ) pure
+    {
+        return a.s6_addr[1] & 0x0f;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_NODELOCAL( in in6_addr* a ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST(a) &&
+               __IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_LINKLOCAL( in in6_addr* a ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST(a) &&
+               __IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_SITELOCAL( in in6_addr* a ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST(a) &&
+               __IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_ORGLOCAL( in in6_addr* a ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST(a) &&
+               __IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_GLOBAL( in in6_addr* a ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST(a) &&
+               __IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL;
+    }
+}
+else version (NetBSD)
+{
+    struct in6_addr
+    {
+        union
+        {
+            uint8_t[16] s6_addr;
+            uint16_t[8] s6_addr16;
+            uint32_t[4] s6_addr32;
+        }
+    }
+
+    struct sockaddr_in6
+    {
+        uint8_t     sin6_len;
+        sa_family_t sin6_family;
+        in_port_t   sin6_port;
+        uint32_t    sin6_flowinfo;
+        in6_addr    sin6_addr;
+        uint32_t    sin6_scope_id;
+    }
+
+    extern __gshared immutable in6_addr in6addr_any;
+    extern __gshared immutable in6_addr in6addr_loopback;
+
+    struct ipv6_mreq
+    {
+        in6_addr    ipv6mr_multiaddr;
+        uint        ipv6mr_interface;
+    }
+
+    enum : uint
+    {
+        IPPROTO_IPV6        = 41,
+
+        //INET6_ADDRSTRLEN    = 46,
+
+        IPV6_JOIN_GROUP     = 12,
+        IPV6_LEAVE_GROUP    = 13,
+        IPV6_MULTICAST_HOPS = 10,
+        IPV6_MULTICAST_IF   = 9,
+        IPV6_MULTICAST_LOOP = 11,
+        IPV6_UNICAST_HOPS   = 4,
+        IPV6_V6ONLY         = 27,
+    }
+
+    private enum
+    {
+        __IPV6_ADDR_SCOPE_NODELOCAL     = 0x01,
+        __IPV6_ADDR_SCOPE_INTFACELOCAL  = 0x01,
+        __IPV6_ADDR_SCOPE_LINKLOCAL     = 0x02,
+        __IPV6_ADDR_SCOPE_SITELOCAL     = 0x05,
+        __IPV6_ADDR_SCOPE_ORGLOCAL      = 0x08,
+        __IPV6_ADDR_SCOPE_GLOBAL        = 0x0e,
+    }
+
+    // macros
+    extern (D) int IN6_IS_ADDR_UNSPECIFIED( in in6_addr* a ) pure
+    {
+        return (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[0]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[4]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[8]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[12]) == 0);
+    }
+
+    extern (D) int IN6_IS_ADDR_LOOPBACK( in in6_addr* a ) pure
+    {
+        return (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[0]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[4]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[8]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[12]) == ntohl(1));
+    }
+
+    extern (D) int IN6_IS_ADDR_V4COMPAT( in in6_addr* a ) pure
+    {
+        return (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[0]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[4]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[8]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[12]) != 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[12]) != ntohl(1));
+    }
+
+    extern (D) int IN6_IS_ADDR_V4MAPPED( in in6_addr* a ) pure
+    {
+        return (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[0]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[4]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[8]) == ntohl(0x0000ffff));
+    }
+
+    extern (D) int IN6_IS_ADDR_LINKLOCAL( in in6_addr* a ) pure
+    {
+        return a.s6_addr[0] == 0xfe && (a.s6_addr[1] & 0xc0) == 0x80;
+    }
+
+    extern (D) int IN6_IS_ADDR_SITELOCAL( in in6_addr* a ) pure
+    {
+        return a.s6_addr[0] == 0xfe && (a.s6_addr[1] & 0xc0) == 0xc0;
+    }
+
+    extern (D) int IN6_IS_ADDR_MULTICAST( in in6_addr* a ) pure
+    {
+        return a.s6_addr[0] == 0xff;
+    }
+
+    extern (D) uint8_t __IPV6_ADDR_MC_SCOPE( in in6_addr* a ) pure
+    {
+        return a.s6_addr[1] & 0x0f;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_NODELOCAL( in in6_addr* a ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST(a) &&
+               __IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_LINKLOCAL( in in6_addr* a ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST(a) &&
+               __IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_SITELOCAL( in in6_addr* a ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST(a) &&
+               __IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_ORGLOCAL( in in6_addr* a ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST(a) &&
+               __IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_GLOBAL( in in6_addr* a ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST(a) &&
+               __IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL;
+    }
+}
+else version (DragonFlyBSD)
+{
+    struct in6_addr
+    {
+        union
+        {
+            uint8_t[16] s6_addr;
+            uint16_t[8] s6_addr16;
+            uint32_t[4] s6_addr32;
+        }
+    }
+
+    struct sockaddr_in6
+    {
+        uint8_t     sin6_len;
+        sa_family_t sin6_family;
+        in_port_t   sin6_port;
+        uint32_t    sin6_flowinfo;
+        in6_addr    sin6_addr;
+        uint32_t    sin6_scope_id;
+    }
+
+    extern __gshared immutable in6_addr in6addr_any;
+    extern __gshared immutable in6_addr in6addr_loopback;
+
+    struct ipv6_mreq
+    {
+        in6_addr    ipv6mr_multiaddr;
+        uint        ipv6mr_interface;
+    }
+
+    enum : uint
+    {
+        IPPROTO_IPV6        = 41,
+
+        //INET6_ADDRSTRLEN    = 46,
+
+        IPV6_JOIN_GROUP     = 12,
+        IPV6_LEAVE_GROUP    = 13,
+        IPV6_MULTICAST_HOPS = 10,
+        IPV6_MULTICAST_IF   = 9,
+        IPV6_MULTICAST_LOOP = 11,
+        IPV6_UNICAST_HOPS   = 4,
+        IPV6_V6ONLY         = 27,
+    }
+
+    private enum
+    {
+        __IPV6_ADDR_SCOPE_NODELOCAL     = 0x01,
+        __IPV6_ADDR_SCOPE_INTFACELOCAL  = 0x01,
+        __IPV6_ADDR_SCOPE_LINKLOCAL     = 0x02,
+        __IPV6_ADDR_SCOPE_SITELOCAL     = 0x05,
+        __IPV6_ADDR_SCOPE_ORGLOCAL      = 0x08,
+        __IPV6_ADDR_SCOPE_GLOBAL        = 0x0e,
+    }
+
+    // macros
+    extern (D) int IN6_IS_ADDR_UNSPECIFIED( in in6_addr* a ) pure
+    {
+        return (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[0]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[4]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[8]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[12]) == 0);
+    }
+
+    extern (D) int IN6_IS_ADDR_LOOPBACK( in in6_addr* a ) pure
+    {
+        return (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[0]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[4]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[8]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[12]) == ntohl(1));
+    }
+
+    extern (D) int IN6_IS_ADDR_V4COMPAT( in in6_addr* a ) pure
+    {
+        return (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[0]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[4]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[8]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[12]) != 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[12]) != ntohl(1));
+    }
+
+    extern (D) int IN6_IS_ADDR_V4MAPPED( in in6_addr* a ) pure
+    {
+        return (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[0]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[4]) == 0) &&
+               (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[8]) == ntohl(0x0000ffff));
+    }
+
+    extern (D) int IN6_IS_ADDR_LINKLOCAL( in in6_addr* a ) pure
+    {
+        return a.s6_addr[0] == 0xfe && (a.s6_addr[1] & 0xc0) == 0x80;
+    }
+
+    extern (D) int IN6_IS_ADDR_SITELOCAL( in in6_addr* a ) pure
+    {
+        return a.s6_addr[0] == 0xfe && (a.s6_addr[1] & 0xc0) == 0xc0;
+    }
+
+    extern (D) int IN6_IS_ADDR_MULTICAST( in in6_addr* a ) pure
+    {
+        return a.s6_addr[0] == 0xff;
+    }
+
+    extern (D) uint8_t __IPV6_ADDR_MC_SCOPE( in in6_addr* a ) pure
+    {
+        return a.s6_addr[1] & 0x0f;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_NODELOCAL( in in6_addr* a ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST(a) &&
+               __IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_LINKLOCAL( in in6_addr* a ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST(a) &&
+               __IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_SITELOCAL( in in6_addr* a ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST(a) &&
+               __IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_ORGLOCAL( in in6_addr* a ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST(a) &&
+               __IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_GLOBAL( in in6_addr* a ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST(a) &&
+               __IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL;
+    }
+}
+else version (Solaris)
+{
+    struct in6_addr
+    {
+        union
+        {
+            uint8_t[16] s6_addr;
+            uint8_t[16] s6_addr8;
+            uint32_t[4] s6_addr32;
+        }
+    }
+
+    struct sockaddr_in6
+    {
+        sa_family_t sin6_family;
+        in_port_t   sin6_port;
+        uint32_t    sin6_flowinfo;
+        in6_addr    sin6_addr;
+        uint32_t    sin6_scope_id;
+        uint32_t    __sin6_src_id;
+    }
+
+    extern __gshared immutable in6_addr in6addr_any;
+    extern __gshared immutable in6_addr in6addr_loopback;
+
+    struct ipv6_mreq
+    {
+        in6_addr    ipv6mr_multiaddr;
+        uint        ipv6mr_interface;
+    }
+
+    enum : uint
+    {
+        IPPROTO_IPV6        = 41,
+
+        //INET6_ADDRSTRLEN    = 46,
+
+        IPV6_JOIN_GROUP     = 9,
+        IPV6_LEAVE_GROUP    = 10,
+        IPV6_MULTICAST_HOPS = 7,
+        IPV6_MULTICAST_IF   = 6,
+        IPV6_MULTICAST_LOOP = 8,
+        IPV6_UNICAST_HOPS   = 5,
+        IPV6_V6ONLY         = 39,
+    }
+
+    // macros
+    extern (D) int IN6_IS_ADDR_UNSPECIFIED( in in6_addr* a ) pure
+    {
+        return (a.s6_addr32[0] == 0) && (a.s6_addr32[1] == 0) &&
+               (a.s6_addr32[2] == 0) && (a.s6_addr32[3] == 0);
+    }
+
+    extern (D) int IN6_IS_ADDR_LOOPBACK( in in6_addr* a ) pure
+    {
+        return (a.s6_addr32[0] == 0) && (a.s6_addr32[1] == 0) &&
+               (a.s6_addr32[2] == 0) && (a.s6_addr32[3] == ntohl(1));
+    }
+
+    extern (D) int IN6_IS_ADDR_V4COMPAT( in in6_addr* a ) pure
+    {
+        return (a.s6_addr32[0] == 0) && (a.s6_addr32[1] == 0) &&
+               (a.s6_addr32[2] == 0) && (a.s6_addr32[3] != 0) &&
+               (a.s6_addr32[3] != ntohl(1));
+    }
+
+    extern (D) int IN6_IS_ADDR_V4MAPPED( in in6_addr* a ) pure
+    {
+        return (a.s6_addr32[0] == 0) && (a.s6_addr32[1] == 0) &&
+               (a.s6_addr32[2] == ntohl(0x0000ffff));
+    }
+
+    extern (D) int IN6_IS_ADDR_LINKLOCAL( in in6_addr* a ) pure
+    {
+        return a.s6_addr8[0] == 0xfe && (a.s6_addr8[1] & 0xc0) == 0x80;
+    }
+
+    extern (D) int IN6_IS_ADDR_SITELOCAL( in in6_addr* a ) pure
+    {
+        return a.s6_addr8[0] == 0xfe && (a.s6_addr8[1] & 0xc0) == 0xc0;
+    }
+
+    extern (D) int IN6_IS_ADDR_MULTICAST( in in6_addr* a ) pure
+    {
+        return a.s6_addr8[0] == 0xff;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_NODELOCAL( in in6_addr* a ) pure
+    {
+        return a.s6_addr8[0] == 0xff && (a.s6_addr8[1] & 0x0f) == 0x01;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_LINKLOCAL( in in6_addr* a ) pure
+    {
+        return a.s6_addr8[0] == 0xff && (a.s6_addr8[1] & 0x0f) == 0x02;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_SITELOCAL( in in6_addr* a ) pure
+    {
+        return a.s6_addr8[0] == 0xff && (a.s6_addr8[1] & 0x0f) == 0x05;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_ORGLOCAL( in in6_addr* a ) pure
+    {
+        return a.s6_addr8[0] == 0xff && (a.s6_addr8[1] & 0x0f) == 0x08;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_GLOBAL( in in6_addr* a ) pure
+    {
+        return a.s6_addr8[0] == 0xff && (a.s6_addr8[1] & 0x0f) == 0x0e;
+    }
+}
+else version (CRuntime_Bionic)
+{
+    struct in6_addr
+    {
+        union
+        {
+            uint8_t[16] s6_addr;
+            uint16_t[8] s6_addr16;
+            uint32_t[4] s6_addr32;
+        }
+    }
+
+    struct sockaddr_in6
+    {
+        ushort      sin6_family;
+        uint16_t    sin6_port;
+        uint32_t    sin6_flowinfo;
+        in6_addr    sin6_addr;
+        uint32_t    sin6_scope_id;
+    }
+
+    __gshared immutable in6_addr in6addr_any = {[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]};
+    __gshared immutable in6_addr in6addr_loopback = {[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1]};
+
+    struct ipv6_mreq
+    {
+        in6_addr ipv6mr_multiaddr;
+        int      ipv6mr_ifindex;
+    }
+
+    enum : uint
+    {
+        IPPROTO_IPV6        = 41,
+
+        IPV6_JOIN_GROUP     = 20,
+        IPV6_LEAVE_GROUP    = 21,
+        IPV6_MULTICAST_HOPS = 18,
+        IPV6_MULTICAST_IF   = 17,
+        IPV6_MULTICAST_LOOP = 19,
+        IPV6_UNICAST_HOPS   = 16,
+        IPV6_V6ONLY         = 26
+    }
+
+    private enum
+    {
+        IPV6_ADDR_SCOPE_NODELOCAL     = 0x01,
+        IPV6_ADDR_SCOPE_INTFACELOCAL  = 0x01,
+        IPV6_ADDR_SCOPE_LINKLOCAL     = 0x02,
+        IPV6_ADDR_SCOPE_SITELOCAL     = 0x05,
+        IPV6_ADDR_SCOPE_ORGLOCAL      = 0x08,
+        IPV6_ADDR_SCOPE_GLOBAL        = 0x0e,
+    }
+
+    extern (D) pure
+    {
+        bool IN6_IS_ADDR_UNSPECIFIED( in in6_addr* a )
+        {
+            return (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[0]) == 0) &&
+                   (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[4]) == 0) &&
+                   (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[8]) == 0) &&
+                   (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[12]) == 0);
+        }
+
+        bool IN6_IS_ADDR_LOOPBACK( in in6_addr* a )
+        {
+            return (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[0]) == 0) &&
+                   (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[4]) == 0) &&
+                   (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[8]) == 0) &&
+                   (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[12]) == ntohl(1));
+        }
+
+        bool IN6_IS_ADDR_V4COMPAT( in in6_addr* a )
+        {
+            return (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[0]) == 0) &&
+                   (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[4]) == 0) &&
+                   (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[8]) == 0) &&
+                   (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[12]) != 0) &&
+                   (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[12]) != ntohl(1));
+        }
+
+        bool IN6_IS_ADDR_V4MAPPED( in in6_addr* a )
+        {
+            return (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[0]) == 0) &&
+                   (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[4]) == 0) &&
+                   (*cast(const uint32_t*) cast(const void*) (&a.s6_addr[8]) == ntohl(0x0000ffff));
+        }
+
+        bool IN6_IS_ADDR_LINKLOCAL( in in6_addr* a )
+        {
+            return a.s6_addr[0] == 0xfe && (a.s6_addr[1] & 0xc0) == 0x80;
+        }
+
+        bool IN6_IS_ADDR_SITELOCAL( in in6_addr* a )
+        {
+            return a.s6_addr[0] == 0xfe && (a.s6_addr[1] & 0xc0) == 0xc0;
+        }
+
+        bool IN6_IS_ADDR_ULA( in in6_addr* a )
+        {
+            return (a.s6_addr[0] & 0xfe) == 0xfc;
+        }
+
+        bool IN6_IS_ADDR_MULTICAST( in in6_addr* a )
+        {
+            return a.s6_addr[0] == 0xff;
+        }
+
+        uint8_t IPV6_ADDR_MC_SCOPE( in in6_addr* a )
+        {
+            return a.s6_addr[1] & 0x0f;
+        }
+
+        bool IN6_IS_ADDR_MC_NODELOCAL( in in6_addr* a )
+        {
+            return IN6_IS_ADDR_MULTICAST(a) &&
+                   IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL;
+        }
+
+        bool IN6_IS_ADDR_MC_LINKLOCAL( in in6_addr* a )
+        {
+            return IN6_IS_ADDR_MULTICAST(a) &&
+                   IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL;
+        }
+
+        bool IN6_IS_ADDR_MC_SITELOCAL( in in6_addr* a )
+        {
+            return IN6_IS_ADDR_MULTICAST(a) &&
+                   IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL;
+        }
+
+        bool IN6_IS_ADDR_MC_ORGLOCAL( in in6_addr* a )
+        {
+            return IN6_IS_ADDR_MULTICAST(a) &&
+                   IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL;
+        }
+
+        bool IN6_IS_ADDR_MC_GLOBAL( in in6_addr* a )
+        {
+            return IN6_IS_ADDR_MULTICAST(a) &&
+                   IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL;
+        }
+    }
+}
+else version (CRuntime_Musl)
+{
+
+    struct in6_addr {
+        union {
+            uint8_t[16] s6_addr;
+            uint16_t[8] s6_addr16;
+            uint32_t[4] s6_addr32;
+        }
+    }
+    struct sockaddr_in6 {
+        sa_family_t     sin6_family;
+        in_port_t       sin6_port;
+        uint32_t        sin6_flowinfo;
+        in6_addr        sin6_addr;
+        uint32_t        sin6_scope_id;
+    }
+
+    struct ipv6_mreq
+    {
+        in6_addr    ipv6mr_multiaddr;
+        uint        ipv6mr_interface;
+    }
+
+    enum : uint
+    {
+        IPPROTO_IPV6 = 41,
+
+        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_V6ONLY         = 26
+    }
+    extern __gshared immutable in6_addr in6addr_any;
+    extern __gshared immutable in6_addr in6addr_loopback;
+}
+else version (CRuntime_UClibc)
+{
+    struct in6_addr
+    {
+        union
+        {
+            uint8_t[16] s6_addr;
+            uint16_t[8] s6_addr16;
+            uint32_t[4] s6_addr32;
+        }
+    }
+
+    struct sockaddr_in6
+    {
+        sa_family_t sin6_family;
+        in_port_t   sin6_port;
+        uint32_t    sin6_flowinfo;
+        in6_addr    sin6_addr;
+        uint32_t    sin6_scope_id;
+    }
+
+    extern __gshared immutable in6_addr in6addr_any;
+    extern __gshared immutable in6_addr in6addr_loopback;
+
+    struct ipv6_mreq
+    {
+        in6_addr    ipv6mr_multiaddr;
+        uint        ipv6mr_interface;
+    }
+
+    enum : uint
+    {
+        IPPROTO_IPV6        = 41,
+        IPV6_JOIN_GROUP     = 20,
+        IPV6_LEAVE_GROUP    = 21,
+        IPV6_MULTICAST_HOPS = 18,
+        IPV6_MULTICAST_IF   = 17,
+        IPV6_MULTICAST_LOOP = 19,
+        IPV6_UNICAST_HOPS   = 16,
+        IPV6_V6ONLY         = 26
+    }
+
+    // macros
+    extern (D) int IN6_IS_ADDR_UNSPECIFIED( in6_addr* addr ) pure
+    {
+        return (cast(uint32_t*) addr)[0] == 0 &&
+               (cast(uint32_t*) addr)[1] == 0 &&
+               (cast(uint32_t*) addr)[2] == 0 &&
+               (cast(uint32_t*) addr)[3] == 0;
+    }
+
+    extern (D) int IN6_IS_ADDR_LOOPBACK( in6_addr* addr ) pure
+    {
+        return (cast(uint32_t*) addr)[0] == 0  &&
+               (cast(uint32_t*) addr)[1] == 0  &&
+               (cast(uint32_t*) addr)[2] == 0  &&
+               (cast(uint32_t*) addr)[3] == htonl( 1 );
+    }
+
+    extern (D) int IN6_IS_ADDR_MULTICAST( in6_addr* addr ) pure
+    {
+        return (cast(uint8_t*) addr)[0] == 0xff;
+    }
+
+    extern (D) int IN6_IS_ADDR_LINKLOCAL( in6_addr* addr ) pure
+    {
+        return ((cast(uint32_t*) addr)[0] & htonl( 0xffc00000 )) == htonl( 0xfe800000 );
+    }
+
+    extern (D) int IN6_IS_ADDR_SITELOCAL( in6_addr* addr ) pure
+    {
+        return ((cast(uint32_t*) addr)[0] & htonl( 0xffc00000 )) == htonl( 0xfec00000 );
+    }
+
+    extern (D) int IN6_IS_ADDR_V4MAPPED( in6_addr* addr ) pure
+    {
+        return (cast(uint32_t*) addr)[0] == 0 &&
+               (cast(uint32_t*) addr)[1] == 0 &&
+               (cast(uint32_t*) addr)[2] == htonl( 0xffff );
+    }
+
+    extern (D) int IN6_IS_ADDR_V4COMPAT( in6_addr* addr ) pure
+    {
+        return (cast(uint32_t*) addr)[0] == 0 &&
+               (cast(uint32_t*) addr)[1] == 0 &&
+               (cast(uint32_t*) addr)[2] == 0 &&
+               ntohl( (cast(uint32_t*) addr)[3] ) > 1;
+    }
+
+    extern (D) int IN6_ARE_ADDR_EQUAL( in6_addr* a, in6_addr* b ) pure
+    {
+        return (cast(uint32_t*) a)[0] == (cast(uint32_t*) b)[0] &&
+               (cast(uint32_t*) a)[1] == (cast(uint32_t*) b)[1] &&
+               (cast(uint32_t*) a)[2] == (cast(uint32_t*) b)[2] &&
+               (cast(uint32_t*) a)[3] == (cast(uint32_t*) b)[3];
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_NODELOCAL( in6_addr* addr ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST( addr ) &&
+               ((cast(uint8_t*) addr)[1] & 0xf) == 0x1;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_LINKLOCAL( in6_addr* addr ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST( addr ) &&
+               ((cast(uint8_t*) addr)[1] & 0xf) == 0x2;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_SITELOCAL( in6_addr* addr ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST(addr) &&
+               ((cast(uint8_t*) addr)[1] & 0xf) == 0x5;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_ORGLOCAL( in6_addr* addr ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST( addr) &&
+               ((cast(uint8_t*) addr)[1] & 0xf) == 0x8;
+    }
+
+    extern (D) int IN6_IS_ADDR_MC_GLOBAL( in6_addr* addr ) pure
+    {
+        return IN6_IS_ADDR_MULTICAST( addr ) &&
+               ((cast(uint8_t*) addr)[1] & 0xf) == 0xe;
+    }
+}
+
+
+//
+// Raw Sockets (RS)
+//
+/*
+IPPROTO_RAW
+*/
+
+version (CRuntime_Glibc)
+{
+    enum uint IPPROTO_RAW = 255;
+}
+else version (Darwin)
+{
+    enum uint IPPROTO_RAW = 255;
+}
+else version (FreeBSD)
+{
+    enum uint IPPROTO_RAW = 255;
+}
+else version (NetBSD)
+{
+    enum uint IPPROTO_RAW = 255;
+}
+else version (DragonFlyBSD)
+{
+    enum uint IPPROTO_RAW = 255;
+}
+else version (Solaris)
+{
+    enum uint IPPROTO_RAW = 255;
+}
+else version (linux)
+{
+    enum uint IPPROTO_RAW = 255;
+}
+else version (CRuntime_UClibc)
+{
+    enum uint IPPROTO_RAW = 255;
+}