--- config.sub	2009-10-01 05:35:23.000000000 -0500
+++ config.sub	2019-04-28 04:57:15.837809557 -0500
@@ -242,7 +242,7 @@
 	| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
 	| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
 	| am33_2.0 \
-	| arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr | avr32 \
+	| arc | aarch64 | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr | avr32 \
 	| bfin \
 	| c4x | clipper \
 	| d10v | d30v | dlx | dsp16xx \