intel-oneapi-* conflicts for non linux, x86 (#34441)

lib/spack/spack/build_systems/oneapi.py

@@ -10,6 +10,7 @@
 
 from llnl.util.filesystem import find_headers, find_libraries, join_path
 
+from spack.directives import conflicts
 from spack.util.environment import EnvironmentModifications
 from spack.util.executable import Executable
 
@@ -25,6 +26,16 @@ class IntelOneApiPackage(Package):
     # organization (e.g. University/Company).
     redistribute_source = False
 
+    for c in [
+        "target=ppc64:",
+        "target=ppc64le:",
+        "target=aarch64:",
+        "platform=darwin:",
+        "platform=cray:",
+        "platform=windows:",
+    ]:
+        conflicts(c, msg="This package in only available for x86_64 and Linux")
+
     @staticmethod
     def update_description(cls):
         """Updates oneapi package descriptions with common text."""