Hi, as of gcc4 there is no g77 anymore, but gfortran. So the ebuild needs some adjustment. Else you get this: * 64 bit architecture detected, using g77. * None of the needed Fortran Compilers (g77) is installed. * To install one of these, choose one of the following steps: * [1] USE="fortran" emerge sys-devel/gcc gcc *is* compiled with USE="fortran", but the compiler executeable is renamed to gfortran.
I have been working on this issue for quite some time now. I have committed an update to the fortran eclass, and updated the dev-lang/R-2.2.1 ebuild to allow compilation with gfortran on GCC 4 systems. Please let me know if you have any problems.