Build issue: rpc/rpc.h missing

When building dune-uggrid on my machine, I get the following error:

[ 70%] Building CXX object low/CMakeFiles/low.dir/bio.cc.o
/home/martin/numerics/master/dune-uggrid/low/bio.cc:43:65: fatal error: rpc/rpc.h: No such file or directory
 #include <rpc/rpc.h>    /* to include xdr.h in a portable way */
                                                                 ^
compilation terminated.

Notice that configuration went through just fine. Taking a closer look, there is indeed no file named /usr/include/rpc/rpc.h.

At first sight, this looks like a missing configuration check for rpc/rpc.h.