[Zlib-devel] HEADS UP: Apparent bad compilation under (just released) GCC 4.5.0

[Vincent Torri]

On Tue, 11 May 2010, Jesus Cea wrote:

>> For example you can decompose -O3 into individual flags by running this
>> command:
>> gcc-4.5 -O3 -Q --help=optimizers|grep enabled|cut -f1 -d\[|xargs echo
>
> I was not aware of how to know what optimizations every level (-O)
> enables. That was a very useful tip. Thanks.

there is also the doc:

http://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html#Optimize-Options

Vincent Torri