[Buildroot] Using buildroot generated toolchain as external toolchain issues

[Thomas Petazzoni]

Dear Matthew Starr,

On Wed, 29 Jul 2015 16:54:34 -0500, Matthew Starr wrote:

> output/host/opt/ext-toolchain/bin/../libexec/gcc/arm-buildroot-linux-gnueabihf/4.9.2/cc1: error while loading shared libraries: libcloog-isl.so.4: cannot open shared object file: No such file or directory
> Incorrect ABI setting: EABIhf selected, but toolchain is incompatible
> package/pkg-generic.mk:146: recipe for target 'output/build/toolchain-external-undefined/.stamp_configured' failed

That's because you have built gcc with graphite support, which requires
cloog. So either disable graphite support, or adjust cloog.mk to also
build the cloog library as a static library.

Best regards,

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com