[Bro-Dev] Bro fails on clean checkout

[Katrina LaCurts]

After doing:
git clone --recursive git://git.bro-ids.org/bro
./configure --with-libmagic=/usr/local/Cellar/libmagic/5.04/

I get the following errors when building:
/Users/katrina/test-bro/bro/src/IP.cc: In function ‘VectorVal* BuildOptionsVal(const u_char*, int)’:
/Users/katrina/test-bro/bro/src/IP.cc:46: error: invalid use of incomplete type ‘const struct ip6_opt’
/Users/katrina/test-bro/bro/src/IP.cc:44: error: forward declaration of ‘const struct ip6_opt’

(they continue for subsequent lines in IP.cc)

I see similar errors when trying to merge my branch with master.  Am I doing something dumb?

Thanks,
Katrina