Silence some GCC warnings about no return statement.
Silence some GCC warnings about no return statement.

taglib/taglib,taglib/taglib,black78/taglib,black78/taglib,Distrotech/taglib,TsudaKageyu/taglib,taglib/taglib,Distrotech/taglib,Distrotech/taglib,TsudaKageyu/taglib,black78/taglib,TsudaKageyu/taglib