--- a/check-all.sh	Sun Dec 15 15:22:45 2024 +0100
+++ b/check-all.sh	Sun Dec 15 15:23:29 2024 +0100
@@ -36,6 +36,10 @@
 printf "Check w/o szmul builtin (c++)... "
 perform_check_cxx
 
+printf "Check gcc C23 preview... "
+CC=gcc CFLAGS=-std=c23 ./configure --debug > /dev/null
+perform_check
+
 # clean build files and restore config
 make clean > /dev/null
 mv config.mk.bak config.mk