https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91731
Bug ID: 91731
Summary: Configure error on building MPICH
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: damian at sourceryinstitute dot org
Target Milestone: ---
Below is the trailing output of configuring MPICH 3.2, 3.2.1, or 3.3.1 with the
current GCC trunk:
configure: error: The Fortran compiler /opt/gnu/10.0.0/bin/gfortran will not
compile files that call the same routine with arguments of different types.
I imagine this might be solved by adding the -fallow-argument-mismatch argument
enabled by the gfortran patch posted at
https://gcc.gnu.org/ml/fortran/2019-08/msg00118.html so possibly this can be
closed once that patch hits the trunk. Does GCC 9 have the same issue. If so,
could the patch be backported to the 9 branch? Is this indicative of
non-standard code in MPICH?
Damian
