Undefined Symbol --res-maybe-init Version Glibc-private Today

The error undefined symbol --res-maybe-init version glibc-private typically indicates a or a linking issue with a custom or mismatched glibc. This symbol is not public ; it’s a private glibc resolver symbol used internally for thread-safe resolver initialization.

But for a , use a direct linker undefined reference : undefined symbol --res-maybe-init version glibc-private

gcc -c provoke_glibc_private_undef.c gcc -o test provoke_glibc_private_undef.o If linking succeeds (due to weak alias tricks), force by making LD_BIND_NOW=1 ./test . undefined symbol --res-maybe-init version glibc-private

int main() { __res_maybe_init(); // now expects GLIBC_PRIVATE version return 0; } undefined symbol --res-maybe-init version glibc-private