Master fails to compile

[Phil Holmes]

address@hidden:~/lilypond-git$ rm -rf build
address@hidden:~/lilypond-git$ sh autogen.sh --noconfigure &> dev\null
address@hidden:~/lilypond-git$ mkdir -p build
address@hidden:~/lilypond-git$ cd build
address@hidden:~/lilypond-git/build$ ../configure &> dev\null
address@hidden:~/lilypond-git/build$ make -s -j9 &> ~/MakeFail220515.txt

On a clean build directory as above, current master fails to compile as follows:

/lilypond-git/lily/include/listener.hh: In static member function 
'static void Listener::smob_proc_init(scm_t_bits)':
/lilypond-git/lily/include/listener.hh:104: error: insufficient 
contextual information to determine type
/lilypond-git/lily/include/listener.hh: In static member function 
'static void Callback_wrapper::smob_proc_init(scm_t_bits)':
/lilypond-git/lily/include/listener.hh:182: error: insufficient
 contextual information to determine type

I can supply the full output of make if required, this is just an extract.

With the same commands on HEAD~2, the compile completes successfully.