--- misc/expat-2.1.0/conftools/config.sub	2016-04-30 21:24:14.000000000 +0200
+++ misc/build/expat-2.1.0/conftools/config.sub	2017-06-11 10:56:49.000000000 +0200
@@ -252,7 +252,7 @@
 	| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
 	| am33_2.0 \
 	| arc | arceb \
-	| arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv7[arm] \
+	| arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv7[arm] | arm64 \
 	| avr | avr32 \
 	| ba \
 	| be32 | be64 \
@@ -374,7 +374,7 @@
 	| alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
 	| alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \
 	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* | arceb-* \
-	| arm-*  | armbe-* | armle-* | armeb-* | armv*-* \
+	| arm-*  | armbe-* | armle-* | armeb-* | armv*-* | arm64-* \
 	| avr-* | avr32-* \
 	| ba-* \
 	| be32-* | be64-* \