corecmd project compile error

[xb3lh1nhx]

I wanted to test qwindowkit library, so pulled this repo as a dependency. Main README.md states that required C++ standard is 17, but I got compile error:
qmsetup/src/corecmd/main.cpp:173:40: error: ‘std::__cxx11::string’ {aka ‘class std::__cxx11::basic_string<char>’} has no member named ‘starts_with’

Member starts_with was added to a C++ 20 standard.

My version of GLIBC is GLIBC 2.28-10, g++ is 8.3.0-6

Is there any chance of supporting older standards?

[xb3lh1nhx]

Replacing error with more C++ 17 friendly code results in linker errors for filesystem library, i.e.:

qmsetup/src/corecmd/main.cpp:95: undefined reference to std::filesystem::__cxx11::directory_iterator::operator*() const'

[SineStriker]

Use g++9.4 or later. The support for C++ 17 in g++ 8.x is in complete.

[xb3lh1nhx]

Thanks for the response! Sorry, upgrading g++ is not an option. Closing this issue as not related to project