+# AIX is not supported
+ArchSupportsNCG=$(strip $(patsubst $(HostArch_CPP), YES, $(findstring $(HostArch_CPP), i386 x86_64 powerpc)))
+OsSupportsNCG=$(strip $(patsubst $(HostOS_CPP), YES, $(patsubst aix,,$(HostOS_CPP))))
+
+ifeq "$(OsSupportsNCG)$(ArchSupportsNCG)$(GhcUnregisterised)" "YESYESNO"