diff -ruN nasm-2.16.03/autoconf/helpers/config.sub nasm-2.16.03-banan_os/autoconf/helpers/config.sub
--- nasm-2.16.03/autoconf/helpers/config.sub	2024-04-17 20:04:08.000000000 +0300
+++ nasm-2.16.03-banan_os/autoconf/helpers/config.sub	2024-08-18 18:47:13.768447183 +0300
@@ -1754,7 +1754,7 @@
 	     | onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \
 	     | midnightbsd* | amdhsa* | unleashed* | emscripten* | wasi* \
 	     | nsk* | powerunix* | genode* | zvmoe* | qnx* | emx* | zephyr* \
-	     | fiwix* )
+	     | fiwix* | banan_os* )
 		;;
 	# This one is extra strict with allowed versions
 	sco3.2v2 | sco3.2v[4-9]* | sco5v6*)