Re: MinGW build of 3.2.0: shared libstdc++

[Jaroslav Hajek]

2009/6/9 Tatsuro MATSUOKA <address@hidden>:
> Hello
>
> --- Benjamin Lindner  wrote:
>>
>> True, I have a local changeset using the CXXLIBS flag. I hestitated to
>> submit it yet because obviously shared libstd++ on mingw is considered a
>> bit of a hack, and newer ports of TDM's gcc no longer include it, with a
>> remark of "problems". I haven't figured out what these "problems" are
>> though, and the octave builds work fine with it.
>>
>
> If one would not care about of size, it can be used sever optimized option 
> '-O3 -fomoit-frame-pointer'
> by GCC-4.3.3 which gives 20-30% faster octave.

Just a side note: according to gcc manual, -fomit-frame-pointer is on
by default at -O3 (also -O2, -O and -Os).

cheers

-- 
RNDr. Jaroslav Hajek
computing expert & GNU Octave developer
Aeronautical Research and Test Institute (VZLU)
Prague, Czech Republic
url: www.highegg.matfyz.cz