ct-ng seems to disable all optimization by default

ct-ng seems to disable all optimization by default

[Johannes Stezenbach]

Hi,

I've been looking through the build.log and found that
most parts of the toolchain are build without -O2 or similar.
This seems to be caused by ct-ng build scripts passing CFLAGS
unconditionally to ./configure, which causes it to _replace_
any default CFLAGS with the given ones -- in my
case (with CT_USE_PIPES=y) " -pipe".

I guess the easy solution is CT_EXTRA_FLAGS_FOR_HOST="-O2"
and CT_TARGET_CFLAGS="-Os" (or similar).

To me this behaviour is unexpected because CT_EXTRA_FLAGS_FOR_HOST
help talks about "additional" CFLAGS.


Johannes

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Re: ct-ng seems to disable all optimization by default

[Yann E. MORIN]

Johannes, All,

On Thursday 16 February 2012 15:45:52 Johannes Stezenbach wrote:
> I've been looking through the build.log and found that
> most parts of the toolchain are build without -O2 or similar.
> This seems to be caused by ct-ng build scripts passing CFLAGS
> unconditionally to ./configure, which causes it to _replace_
> any default CFLAGS with the given ones -- in my
> case (with CT_USE_PIPES=y) " -pipe".
> 
> I guess the easy solution is CT_EXTRA_FLAGS_FOR_HOST="-O2"
> and CT_TARGET_CFLAGS="-Os" (or similar).
> 
> To me this behaviour is unexpected because CT_EXTRA_FLAGS_FOR_HOST
> help talks about "additional" CFLAGS.

Yes, what is provided in the menuconfig should be added in a way that it
overrides the computed values. In this case, the additional CFLAGS should
be added after the internally-computed ones, yes.

I'll look at it this WE (although that's gonna be a short one, anti-ACTA
demonstration sat. PM).

Regards,
Yann E. MORIN.

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