[Buildroot] buildroot: gcc options

Gustavo Zacarias gustavo at zacarias.com.ar
Wed Nov 20 11:45:23 UTC 2013


On 11/19/2013 02:23 PM, Arnout Vandecappelle wrote:

>  Is there any reason why BR2_TARGET_OPTIMIZATIONS isn't used for
> building the C library?

The libc is somewhat fragile when built with some insane CFLAGS, for
instance (e)glibc is built at O2 (by Thomas P), allowing a switch to
another optimization level might be troublesome.
uClibc forces -Os in Rules.mak for BUILD_CFLAGS for example.
I'm unsure if we'd like to open pandora's box by merging them, maybe add
an option just for the libc?
Regards.




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