[Qemu-devel] Sheepdog doesn't build on OS X

[C.W. Betts]

When building the current master branch, I get an error when building the 
Sheepdog block driver:
/Users/cwbetts/makestuff/qemu/block/sheepdog.c: In function ‘set_cork’:
/Users/cwbetts/makestuff/qemu/block/sheepdog.c:903: error: ‘SOL_TCP’ undeclared 
(first use in this function)
/Users/cwbetts/makestuff/qemu/block/sheepdog.c:903: error: (Each undeclared 
identifier is reported only once
/Users/cwbetts/makestuff/qemu/block/sheepdog.c:903: error: for each function it 
appears in.)
/Users/cwbetts/makestuff/qemu/block/sheepdog.c:903: error: ‘TCP_CORK’ 
undeclared (first use in this function)
make: *** [block/sheepdog.o] Error 1
Any suggestions to fix them?