ASE 15.0.3 full install on Linux 32bit.
First we need to install unixODBC:

% sudo aptitude install unixodbc unixodbc-bin unixodbc-dev libstdc++5

Because of a bug within the Sybase ODBC install, we need to change /opt/sybase/DataAccess/ODBC/samples/drivertemplate.txt.

/opt/sybase/DataAccess/ODBC/samples/drivertemplate.txt:

[Adaptive Server Enterprise]
Description = Sybase ODBC Driver
Driver = /opt/sybase/ODBC-12_5/lib/libsybdrvodb.so
FileUsage = -1

Change to:

[Adaptive Server Enterprise]
Description = Sybase ODBC Driver
Driver = /opt/sybase/DataAccess/ODBC/lib/libsybdrvodb.so
FileUsage = -1

This template file is used to install the ODBC driver with unixODBC:

odbcinst -i -d -f /opt/sybase/DataAccess/ODBC/samples/drivertemplate.txt

Currently Sybase’s ODBC driver does not have a GUI component for unixODBC. I’m waiting on the bug #. Once I have it, I’ll update this post.

Now we are ready to define an ODBC dsn. We will need to create a template file to do so:

dbadev1.dsn

[dbadev1]
Description=Sybase ODBC Data Source
UserID=sa
Password=password
Driver=Adaptive Server Enterprise
Server=dba-dev1
Port=5000
Database=sybase_dba
UseCursor=1

To add it to unixODBC we need to run:

odbcinst -i -s -f dbadev1.dsn

If you wanted a system wide dsn:

sudo odbcinst -i -s -l -f dbadev1.dsn
Updated to include libstdc++5 for the newer releases of Ubuntu