Re: fenv.h not found?

[Arnaud Lacombe <lacombar at gmail dot com>]

Hi,

On Wed, Oct 20, 2010 at 8:11 AM, Yann E. MORIN
<yann.morin.1998@anciens.enib.fr> wrote:
> All,
>
> On Wednesday 20 October 2010 08:15:18 Anthony Foiani wrote:
>> So it seems that headers for libstdc++ get installed into the sysroot
>> (where they are probably not needed), rather than in the cross-compile
>> directory itself.
>
> The issue is that:
> - build a cross-toolchain
> - use that cross-toolchain to build a full-blown system for your target
> - use that cross-toolchain to build a native compiler (same version as in
> ?the cross-toolchain) to run on your target (which I call a cross-native,
> ?I'm ready to use a better name if you have one)
> - you want that compiler to use the same C/C++ headers and libraries as the
> ?one from your cross-toolchain, or else you are in trouble.
> So you want to be able to copy the sysroot to your target's rootfs and get
> all that is needed to build natively on your target.
>
> I understand "sysroot" as being the "system root" that holds all system
> headers and libraries for the target.
>
the funny thing is that you never intended explicitly, referring to
the commit logs and code comments, to put these specific gcc headers
in the sysroot. This is a fallout of a change you made back in April.

 - Arnaud

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