[Buildroot] How to change compiler to newer in old build-root

[Denis Kotov]

Hello everyone,

I am curious if I can change old gcc-4.8 compiler in buildroot-2014 to to
gcc-7 ??
I have just replace name of compiler from gcc-4.8 to gcc-7, but failed with
an error:

*>>> toolchain-external undefined Configuring*

What did I wrong ?

*Thanks,*

*Best RegardsDenis Kotov*
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