Xaw95 https://sourceforge.net/projects/sf-xpaint/files/sf-xpaint/x... You don't need to install it globally, an LD_PRELOAD env var pointing to ./libXaw95.so.8.0 will do the trick.

Usage:

        xmkmf -a 
        make 
        

Test:

       export LD_PRELOAD=./libXaw95.so.8.0
       xcalc