How to disable this warning? C++

Question

All the question in this post
https://www.sololearn.com/post/386963/?ref=app

Answer 1

Gen2oo
WARNING: linker: a.out: unsupported flags DT_FLAGS_1=0x8000001

I using g++ compiler, Termux android app

Answer 2

Gen2oo open my post

Answer 3

What is the warning?

P.S: I get "Page not found." when clicking the link.