[GiNaC-devel] A few bugfixes (function::evalf, MinGW)

[Alexey Sheplyakov]

Dear Richard,

could you please pull from

git://github.com/asheplyakov/ginac.git bugfixes-20210106

There are two fixes:

1) MinGW compile fix (avoid multiple definitions of lst::info)
2) function::evalf fix (pass evalf'ed parameters to evalf_func which
    takes arguments as an exvector)

Best regards,
    Alexey