Xffm fails to compile with the following error message:

callbacks.c: In function 'treeclick':
callbacks.c:668: error: invalid storage class for function 'unsel'
make[2]: *** [libxffm_basic_la-callbacks.lo] Error 1

This is due to a static function being declared inside another function, which
violates the C standard.

Reproducible: Always
Steps to Reproduce:
1. Compile with gcc4 snapshot
2. 
3. 

Actual Results:  
Fails with above error.

Expected Results:  
Should compile.