Just to urge people to upgrade...

And I think we should change the default optimization to be -O0 for
development builds. And use -O2 for release builds. Opinions?

Here is the compile data:

Compile times for combination of xforms and qt frontends.
Precompiled headers are used where available (3.4 and 3.5).


          | -O0   | -O1   | -O2   | -O3   | -Os   |
---------------------------------------------------
g++ 3.3.3 | 22:19 | 24:32 | 27:40 | 28:15 | 26:59 |
---------------------------------------------------
g++ 3.4.2 | 15:47 | 17:06 | 19:59 | 20:54 | 20:04 |
---------------------------------------------------
g++ 3.5.0 |  9:53 | 14:46 | 20:17 | 22:17 | 17:35 |
---------------------------------------------------


Binary sizes for lyx-xforms


          | -O0     | -O1     | -O2     | -O3     | -Os     |
-------------------------------------------------------------
g++ 3.3.3 | 3854845 | 3611893 | 3752852 | 3705586 | 3230142 |
-------------------------------------------------------------
g++ 3.4.2 | 3945485 | 3690383 | 4146785 | 4282673 | 3106008 |
-------------------------------------------------------------
g++ 3.5.0 | 4790363 | 4641056 | 5000820 | 5406750 | 3156855 |
-------------------------------------------------------------

-- 
        Lgb

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