TEST: Test whether restoration of intel@2021.8.0 works

Author: CodeGat

spack.yaml

@@ -23,6 +23,18 @@ spack:
       require:
       - '@4.7.3'
 
+    # Test whether restoring this definition of compilers works
+    intel-oneapi-compilers:
+      externals:
+      - spec: intel-oneapi-compilers-classic@2021.8.0
+        prefix: /apps/intel-ct/wrapper
+        modules: [intel-compiler/2021.8.0]
+        extra_attributes:
+          compilers:
+            c: /apps/intel-ct/wrapper/icc
+            cxx: /apps/intel-ct/wrapper/icpc
+            fortran: /apps/intel-ct/wrapper/ifort
+
     # Compilers
     c:
       require: