Multi-measure-rest compilation issue

[address@hidden]

multi-measure-rest.cc: In static member function 'static Stencil 
Multi_measure_rest::church_rest(Grob*, Font_metric*, int, Real)':
multi-measure-rest.cc:246: error: call of overloaded 'pow(int, int)' is 
ambiguous
/usr/include/architecture/i386/math.h:343: note: candidates are: double 
pow(double, double)
/usr/include/c++/4.2.1/cmath:373: note:                 long double 
std::pow(long double, int)
/usr/include/c++/4.2.1/cmath:369: note:                 float std::pow(float, 
int)
/usr/include/c++/4.2.1/cmath:365: note:                 double std::pow(double, 
int)
/usr/include/c++/4.2.1/cmath:361: note:                 long double 
std::pow(long double, long double)
/usr/include/c++/4.2.1/cmath:357: note:                 float std::pow(float, 
float)

Easy fix would be :
      length = int (pow (2.0, -i));
instead of
      length = int (pow (2, -i));

Cheers,
MS