disable orc by hand for now until ORC_SUPPORTED_OS is fixed
Index: llvm-toolchain-17-17.0.6/compiler-rt/cmake/Modules/AllSupportedArchDefs.cmake
===================================================================
--- llvm-toolchain-17-17.0.6.orig/compiler-rt/cmake/Modules/AllSupportedArchDefs.cmake
+++ llvm-toolchain-17-17.0.6/compiler-rt/cmake/Modules/AllSupportedArchDefs.cmake
@@ -85,7 +85,7 @@ endif()
   if (OS_NAME MATCHES "Linux")
     set(ALL_ORC_SUPPORTED_ARCH ${X86_64} ${ARM64} ${ARM32} ${PPC64})
   else()
-    set(ALL_ORC_SUPPORTED_ARCH ${X86_64} ${ARM64} ${ARM32})
+    set(ALL_ORC_SUPPORTED_ARCH ${ARM64} ${ARM32})
   endif()
 endif()
 
