I'd like to apply something like the attached patch to fix the
longstanding issue of kernel network headers conflicting with the libc
ones. I know some people have patched this on the kernel side by
removing the defined(__GLIBC__) check in linux/libc-compat.h, but that
(1) pokes at libc internals, namely the inclusion-guard names, (2)
pretends to work if the kernel headers are included first, but
actually doesn't, and (3) they have glibc-specific logic for some of
the ipv6 fields that are only optionally-exposed, whereas musl always
exposes them (because they're in a reserved namespace).

I have no interest in trying to support the case where the kernel
headers were included first, since they may have all sorts of
gratuitous problems we'd have to work around (and maintain workarounds
for) in their definitions of the types. But simply suppressing the
kernel headers' definitions of network types via reserved-namespace
__UAPI_* macros seems reasonable.

Comments?

Rich