bug#53320: Configure error on package mpich

[Clement Barthelemy]

Hi,

The package mpich@3.3.2 does not build using 

guix build mpich

It fails with an error during the configure phase :

configure: error: The Fortran compiler gfortran will not compile files that 
call the same routine with arguments of different types.


I believe this is due to a change in gfortran10 :

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91731


Clément