add support for Linux-ARM64

Author: sakra

CMake/Mathematica/FindMathematica.cmake

@@ -390,10 +390,12 @@ macro (_systemNameToSystemID _systemName _systemProcessor _outSystemIDs)
 			endif()
 		endif()
 	elseif ("${_systemName}" STREQUAL "Linux")
-		if ("${_systemProcessor}" MATCHES "^i.86$")
-			set (${_outSystemIDs} "Linux")
-		elseif ("${_systemProcessor}" MATCHES "x86_64|amd64")
+		if ("${_systemProcessor}" MATCHES "x86_64|amd64")
 			set (${_outSystemIDs} "Linux-x86-64")
+		elseif ("${_systemProcessor}" MATCHES "i.86|x86")
+			set (${_outSystemIDs} "Linux")
+		elseif ("${_systemProcessor}" MATCHES "aarch64|arm64")
+			set (${_outSystemIDs} "Linux-ARM64")
 		elseif ("${_systemProcessor}" STREQUAL "ia64")
 			set (${_outSystemIDs} "Linux-IA64")
 		elseif ("${_systemProcessor}" MATCHES "^arm")
@@ -473,18 +475,14 @@ macro (_get_system_IDs _outSystemIDs)
 			endif()
 		endif()
 	elseif (UNIX)
-		if ("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux")
-			# pointer size check is more reliable than CMAKE_SYSTEM_PROCESSOR
-			if (CMAKE_SIZEOF_VOID_P EQUAL 8)
-				set (${_outSystemIDs} "Linux-x86-64")
-			else()
-				set (${_outSystemIDs} "Linux")
-			endif()
+		_systemNameToSystemID("${CMAKE_SYSTEM_NAME}" "${CMAKE_SYSTEM_PROCESSOR}" _systemID)
+		if (_systemID)
+			list (APPEND ${_outSystemIDs} ${_systemID})
 		else()
-			_systemNameToSystemID("${CMAKE_SYSTEM_NAME}" "${CMAKE_SYSTEM_PROCESSOR}" ${_outSystemIDs})
+			message (FATAL_ERROR "Unsupported ${CMAKE_SYSTEM_NAME} architecture ${CMAKE_SYSTEM_PROCESSOR}")
 		endif()
 	else()
-		set (${_outSystemIDs} "Generic")
+		message (FATAL_ERROR "Unsupported platform ${CMAKE_SYSTEM_NAME}")
 	endif()
 	list (REMOVE_DUPLICATES ${_outSystemIDs})
 endmacro(_get_system_IDs)
@@ -524,7 +522,12 @@ macro (_get_host_system_IDs _outSystemIDs)
 endmacro()
 
 macro (_get_supported_systemIDs _version _outSystemIDs)
-	if (NOT "${_version}" VERSION_LESS "12.3")
+	if (NOT "${_version}" VERSION_LESS "13.2")
+		set (${_outSystemIDs}
+			"Windows-x86-64"
+			"Linux-x86-64" "Linux-ARM64"
+			"MacOSX-x86-64" "MacOSX-ARM64")
+	elseif (NOT "${_version}" VERSION_LESS "12.3")
 		set (${_outSystemIDs}
 			"Windows-x86-64"
 			"Linux-x86-64" "Linux-ARM"