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-rw-r--r--var/spack/repos/builtin/packages/mvapich2/package.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/var/spack/repos/builtin/packages/mvapich2/package.py b/var/spack/repos/builtin/packages/mvapich2/package.py
index 030e03b7f1..c3e9f1c2f4 100644
--- a/var/spack/repos/builtin/packages/mvapich2/package.py
+++ b/var/spack/repos/builtin/packages/mvapich2/package.py
@@ -199,6 +199,9 @@ class Mvapich2(AutotoolsPackage):
def setup_environment(self, spack_env, run_env):
spec = self.spec
+ # mvapich2 configure fails when F90 and F90FLAGS are set
+ spack_env.unset('F90')
+ spack_env.unset('F90FLAGS')
if 'process_managers=slurm' in spec:
run_env.set('SLURM_MPI_TYPE', 'pmi2')