--- ./sntp/libevent/build-aux/config.sub.bad	2017-02-01 10:49:25.000000000 +0100
+++ ./sntp/libevent/build-aux/config.sub	2024-04-21 12:08:10.073524941 +0200
@@ -428,6 +428,7 @@
 	| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
 	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \
 	| pyramid-* \
+	| riscv32-* | riscv64-* \
 	| rl78-* | romp-* | rs6000-* | rx-* \
 	| sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \
 	| shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \