[Buildroot] External toolchain support improvements
jacmet at uclibc.org
Mon Nov 3 10:15:27 UTC 2008
>>>>> "Thomas" == Thomas Petazzoni <thomas.petazzoni at free-electrons.com> writes:
Thomas> Improve external toolchain support
Thomas> * Do not put kernel-headers in the dependencies of BASE_TARGETS in
Thomas> the case where BR2_TOOLCHAIN_SOURCE is not y. The kernel headers
Thomas> are already supposed to be part of the external toolchain, so
Thomas> there's no need to download, extract and install them.
Thomas> * In the configuration system, don't display the kernel headers
Thomas> version selection list when an external toolchain is selected. This
Thomas> is implemented by moving the source
Thomas> "toolchain/kernel-headers/Config.in" inside the if
Thomas> BR2_TOOLCHAIN_SOURCE in toolchain/Config.in.2.
And this too.
Thomas> * Change the description and help message of the BR2_LARGEFILE,
Thomas> BR2_INET_IPV6, BR2_INET_RPC, and BR2_SOFT_FLOAT option in
Thomas> toolchain/external-toolchain/Config.in. In the case of an external
Thomas> toolchain, the semantic of these options is not to enable large
Thomas> file support, IPV6 or RPC (since the toolchain is already compiled,
Thomas> it has been decided previously). Their semantic is to let Buildroot
Thomas> know about the characteristics of the external toolchain being
Thomas> As an improvement, we could guess these values automatically:
Thomas> - for BR2_LARGEFILE, look at the value of __UCLIBC_HAS_LFS__ in
Thomas> bits/uClibc_config.h in the libc headers directory.
This would only work for external toolchains using uclibc - I guess
the main reason for using an external toolchain is to not use uclibc?
Bye, Peter Korsgaard
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