--- ./configure.ac.orig	2022-04-03 18:21:04.183058995 +0300
+++ ./configure.ac	2022-04-03 18:26:35.223059015 +0300
@@ -10,7 +10,7 @@
 # Checks for programs.
 AC_PROG_CC
 AC_PROG_CXX
-AX_CXX_COMPILE_STDCXX_17
+AX_CXX_COMPILE_STDCXX_11
 
 # libtool
 AM_DISABLE_SHARED