To conform to IBM’s new standards of naming shared libraries, all Sybase Open Client and Open Server shared library files 12.5 and later have an extension name of .so instead of .so.a. For example, in the $SYBASE/$SYBASE_OCS/lib directory, libct.so.a is now named libct.so. The application must be relinked to the new renamed libraries.
The former naming convention of *_dce for threaded libraries and binaries has been changed to *_r.