https://issues.dlang.org/show_bug.cgi?id=17416

          Issue ID: 17416
           Summary: SocketOption.REUSEPORT not available on linux
           Product: D
           Version: D2
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P1
         Component: druntime
          Assignee: nobody@puremagic.com
          Reporter: kevin@brogan.ca

core.sys.posix.sys.socket is missing the SO_REUSEPORT option for linux.

# uname -r
2.6.32-43-pve

>From my linux system headers:
/usr/include/asm-generic/socket.h:#define SO_REUSEPORT  15

as well, the SocketOption.REUSEPORT enumeration does not exist in std.socket

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