fcntl only function that uses glibc_2.28, rest use 2.4

Question

objdump -T | grep GLIBC_2 shows that all functions use GLIBC_2.4 except for fcntl which uses 2.28

How do I force fcntl to use an older version?

Answer 1

How do I force fcntl to use an older version?

You need to compile and link against older version of GLIBC.

To understand how the linker decides which version to use, read this answer.