getting g++ error 1

[anmac1789]

here is the error being displayed in terminal when running make

g++: error: unrecognized command line option ‘-std=c++20’; did you mean ‘-std=c++2a’?
make: *** [Makefile:61: mount-zip.o] Error 1

[fdegros]

Thanks for your report.

Which version of g++ are you using? What do you see when running g++ --version?