GLIBCXX_3.4.20 not found

hi all,
 the subject is the short version :-)

actually I’m using espressif idf stuff for some time now, to compile programs for esp32 et.all, but their latest version 5.1 (not stable) complains
each time any of the compilers (they need linux.ko) is run
	… 
     /lib64/libstdc++.so.6: version `GLIBCXX_3.4.20' not found (required by /cs/system/danny/.espressif-latest/tools/xtensa-esp32-elf/esp-2022r1-11.2.0/xtensa-esp32-elf/bin/../libexec/gcc/xtensa-esp32-elf/11.2.0/cc1plus)


so is there any version of libstdc++ that has the missing symbol?

thanks for any insight,

	danny