This is related to the really crapping stub of a typemap for gsl_function_fdf in gsl_typemaps.i
I have Apple LLVM version 5.1 (clang-503.0.40) (based on LLVM 3.4svn) and it is working well. Also, no similar cpantesters results for latest releases. Can I close this ticket?
Apple LLVM version 5.1 (clang-503.0.40) (based on LLVM 3.4svn)
I believe that the typemap was made less crappy and this is fixed.