Does not work on Ubuntu 18.04 - GLIBC versioning mismatch

[snhirsch]

$ ldd vt52

./vt52: /lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.29' not found (required by ./vt52)
./vt52: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.34' not found (required by ./vt52)
        linux-vdso.so.1 (0x00007ffc2370f000)
        libSDL2-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libSDL2-2.0.so.0 (0x00007fcc8f2eb000)
        libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fcc8ef4d000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fcc8eb5c000)
        libasound.so.2 => /usr/lib/x86_64-linux-gnu/libasound.so.2 (0x00007fcc8e855000)
        libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fcc8e651000)
        libpulse.so.0 => /usr/lib/x86_64-linux-gnu/libpulse.so.0 (0x00007fcc8e401000)
        libsndio.so.6.1 => /usr/lib/x86_64-linux-gnu/libsndio.so.6.1 (0x00007fcc8e1f1000)
...

Is source available so I can try a build against the actual system?