--- b/petsc/config/BuildSystem/config/packages/BlasLapack.py	2021-09-17 23:26:42.115594175 -0500
+++ b/petsc/config/BuildSystem/config/packages/BlasLapack.py	2021-09-17 22:53:07.122154127 -0500
@@ -187,7 +187,7 @@
         yield ('OpenBLAS with full path', None, os.path.join(self.openblas.libDir,'libopenblas.a'),self.openblas.known64,self.openblas.usesopenmp)
       else:
         yield ('OpenBLAS', None, self.openblas.lib,self.openblas.known64,self.openblas.usesopenmp)
-      raise RuntimeError('--download-openblas libraries cannot be used')
+      ###raise RuntimeError('--download-openblas libraries cannot be used')
     if 'with-blas-lib' in self.argDB and not 'with-lapack-lib' in self.argDB:
       raise RuntimeError('If you use the --with-blas-lib=<lib> you must also use --with-lapack-lib=<lib> option')
     if not 'with-blas-lib' in self.argDB and 'with-lapack-lib' in self.argDB: