How to fix xauth compilation error?

Question

linux

A year ago, the installation of xorg packages in Termux (Android) was stopped.
I wanted to build vnc server (tigervnc), it needs xauth.
I downloaded xauth from the official site x.org
I compiled the X11 library.
When building with make, an error occurs:
/data/data/com.termux/files/usr/bin/aarch64-linux-android-ld: /data/data/com.termux/files/usr/lib/libX11.so: undefined reference to `mblen'