diff -Nur emacs-27.2/build-aux/config.guess emacs-27.2.new/build-aux/config.guess
--- emacs-27.2/build-aux/config.guess	2022-11-29 13:17:34.000000000 +0800
+++ emacs-27.2.new/build-aux/config.guess	2022-11-29 13:19:16.684000000 +0800
@@ -919,6 +919,9 @@
     aarch64:Linux:*:*)
 	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
 	exit ;;
+    loongarch32:Linux:*:* | loongarch64:Linux:*:* | loongarchx32:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
     aarch64_be:Linux:*:*)
 	UNAME_MACHINE=aarch64_be
 	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
diff -Nur emacs-27.2/build-aux/config.sub emacs-27.2.new/build-aux/config.sub
--- emacs-27.2/build-aux/config.sub	2022-11-29 13:17:34.000000000 +0800
+++ emacs-27.2.new/build-aux/config.sub	2022-11-29 13:19:48.160000000 +0800
@@ -1157,6 +1157,7 @@
 			1750a | 580 \
 			| a29k \
 			| aarch64 | aarch64_be \
+			| loongarch32 | loongarch64 | loongarchx32 \
 			| abacus \
 			| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] \
 			| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] \