--- CMakeLists.txt.orig	2020-08-28 19:43:13 UTC
+++ CMakeLists.txt
@@ -45,12 +45,17 @@ set(ISPC_BUILD TRUE)
 project(${PROJECT_NAME})
 
 set(X86_HOST FALSE)
-if (${CMAKE_HOST_SYSTEM_PROCESSOR} MATCHES "AMD64|86")
+if (${CMAKE_HOST_SYSTEM_PROCESSOR} MATCHES "amd64|86")
     set(X86_HOST TRUE)
 endif()
 
+set(ARM_HOST FALSE)
+if (${CMAKE_HOST_SYSTEM_PROCESSOR} MATCHES "aarch64")
+    set(ARM_HOST TRUE)
+endif()
+
 option(X86_ENABLED "Enable x86 support" ${X86_HOST})
-option(ARM_ENABLED "Enable ARM support" ON)
+option(ARM_ENABLED "Enable ARM support" ${ARM_HOST})
 option(WASM_ENABLED "Enable experimental Web Assembly support" OFF)
 option(GENX_ENABLED "Enable GenX support" OFF)
 option(ISPC_INCLUDE_EXAMPLES "Generate build targets for the ISPC examples" ON)