do not strip, compile with debugging symbols

[xorquewasp at googlemail.com]

On 20080716 18:06:34, Xin LI wrote:
>
> Maybe you want DEBUG_FLAGS='-O2 -pipe -fno-strict-aliasing -g'?
>

Ah! Yes, thank you very much.

I had to remove the quotes, of course (for the benefit of anyone
else reading this in future).

xw