How to change the glibc version required by an executable?

Question

ldd MyExecutable | grep libc
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007eff56bd0000)

This executable requires glibc version 2.25 from Ubuntu 18.04. How can I overwrite it do ask for glibc 2.23, which is the one present on ubuntu 16.04?

I'm aware of possible problems, but how can I do it?

@ArkadiuszDrabczyk how should I know which version of glibc it looks for? — Gatonito, Jan 21 '21 at 18:00
But you said you already know it: `This executable requires glibc version 2.25`? — Arkadiusz Drabczyk, Jan 21 '21 at 18:02
@ArkadiuszDrabczyk yes but this is when I try to generate an AppImage. I'd like to know how to verify this and how to replace it — Gatonito, Jan 21 '21 at 18:39

score 1 · Answer 1 · answered Jan 23 '21 at 04:33

1

To understand why your binary requires GLIBC_2.25, read this answer.

To understand how you can build a binary which requires older GLIBC version, start here.

answered Jan 23 '21 at 04:33

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How to change the glibc version required by an executable?

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