[FlopCpp] compile errors on Mac OS X with compiler clang

[Wang Hangzhou]

Hi,

Does anybody  encounter these errors when compile Flopc++  1.2.4 on Mac OS X 10.11.3 with clang (Apple LLVM version 7.0.2) 

In file included from MP_boolean.cpp:11:
./MP_domain.hpp:179:18: error: return type of virtual function 'getSet' is not
      covariant with the return type of the function it overrides
      ('flopc::MP_set_base' is incomplete)
    MP_set_base* getSet() const {
                 ^
./MP_domain.hpp:19:7: note: forward declaration of 'flopc::MP_set_base'
class MP_set_base;
      ^
In file included from MP_boolean.cpp:12:
./MP_set.hpp:212:9: error: no matching conversion for functional-style cast from
      'const flopc::SUBSETREF' to 'flopc::MP_domain'
        return MP_domain(s);

Thank you very much.

Best regards,

Hangzhou