Hello, Not sure but the bug should be filed against libgnat-3.4. As a workaround do with root : debian:~# cd /usr/lib/ debian:/usr/lib# ln -s libgnat-3.4.so.1 libgnat-3.4.so And now my little hello world program seems to work : jylenhof@debian:~$ gnatmake hello.adb gnatbind -x hello.ali gnatlink hello.ali jylenhof@debian:~$ ./hello hello world jylenhof@debian:~$ Can you try this workaround if it works for you ? Regards, JYL