How to compile with .so libraries instead of .a ones?

[Ramasubramanian Ramesh <rramesh@ti.com>]

Hi,

 I always thought that the libxx.a libraries are needed to compile 
programs. However it appears that it is
possible to compile programs without them (I suppose this means .so 
version will be used). This I gather from the
response from the debian maintainer of libqt-dev (testing) - libqt-dev  
only contains libqt.so and other .so files.

 Can you please let me know what options I am supposed to provide to 
the compiler for such binary builds?

Thanks and Regards
Ramesh