try if modifying compiler commands directly helps...

seberg · seberg · commit 06ae9ee95fac · 2021-07-07T14:07:28.000-05:00
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
@@ -192,15 +192,15 @@ stages:
         BLAS: None
         LAPACK: None
         ATLAS: None
-        CC: /usr/bin/clang
+        CC: /usr/bin/clang -ffp-exception-behavior=strict
       condition: eq(variables['USE_OPENBLAS'], '1')
     - script: python setup.py build -j 4 build_ext --inplace install
       displayName: 'Build NumPy without OpenBLAS and new casting'
       env:
         BLAS: None
         LAPACK: None
         ATLAS: None
-        CC: /usr/bin/clang
+        CC: /usr/bin/clang -ffp-exception-behavior=strict
       condition: eq(variables['USE_OPENBLAS'], '0')
     # wait until after dev build of NumPy to pip
     # install matplotlib to avoid pip install of older numpy
