Index: build-aux/config.sub
==================================================================
--- build-aux/config.sub
+++ build-aux/config.sub
@@ -868,10 +868,14 @@
 		;;
 	ps2)
 		cpu=i386
 		vendor=ibm
 		;;
+	psp)
+		cpu=mipsallegrexel
+		vendor=psp
+		;;
 	rm[46]00)
 		cpu=mips
 		vendor=siemens
 		;;
 	rtpc | rtpc-*)
@@ -1155,11 +1159,11 @@
 		# Recognize the canonical CPU types that are allowed with any
 		# company name.
 		case $cpu in
 			1750a | 580 \
 			| a29k \
-			| aarch64 | aarch64_be \
+			| aarch64 | aarch64_be | arm64 \
 			| abacus \
 			| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] \
 			| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] \
 			| alphapca5[67] | alpha64pca5[67] \
 			| am33_2.0 \