Index: automake/cfa.m4
===================================================================
--- automake/cfa.m4	(revision 2ea0a8a12ad6c262bec0d17f6e20d736bec4149c)
+++ automake/cfa.m4	(revision 3fc5f010b953cf11d37ccd8b2abff9a22a32e4f6)
@@ -58,4 +58,9 @@
 AC_DEFUN([M4CFA_CANNON_CPU], [
 	case $arch_name in
+		"host") arch_name=${host_cpu};;
+		*) ;;
+	esac
+
+	case $arch_name in
 		"x64"        ) cannon_arch_name="x64";;
 		"x86-64"     ) cannon_arch_name="x64";;