[Help-gsl] Compilation of gsl

[Andrew Larkin]

I'm trying to compile gsl on windows with mingw.  There's a function or macro 
called MAT coming up as undefined in a couple of the programs in the poly 
subdirectory.  I can't find anywhere in the source where this might be defined. 
 
Can anyone help?

Example from balance.c:

              col_norm = fabs (MAT (m, i + 1, i, nc));


Thanks.