Skip test when blas is missing

theano/tensor/nnet/tests/test_corr.py

@@ -24,6 +24,8 @@ class TestCorr2D(utt.InferShapeTester):
         self.filters.name = 'default_filters'
         if not conv.imported_scipy_signal and theano.config.cxx == "":
             raise SkipTest("CorrMM tests need SciPy or a c++ compiler")
+        if not theano.config.blas.ldflags:
+            raise SkipTest("CorrMM tests need a BLAS")
 
     def validate(self, image_shape, filter_shape,
                  border_mode='valid', subsample=(1, 1),