--- builds/posix/vers.sh.in.orig	2022-06-07 08:18:52 UTC
+++ builds/posix/vers.sh.in
@@ -57,7 +57,6 @@ platform_linux() {
 		echo "${TAB}$i;"
 	done
 
-	echo "${TAB}_IO_stdin_used;"
 	echo 'local:'
 	echo "${TAB}*;"
 	echo '};'
