[Buildroot] Problem with buildroot and external toolchain

[hartleys]

Could the problem I am having with ext-tool.mk not copying my external
toolchain library files be related to the version of find installed on
my system?

I'm running Debian etch which has the following find version:

$ find --version
GNU find version 4.2.28
Features enabled: D_TYPE O_NOFOLLOW(enabled) LEAF_OPTIMISATION

I see on the GNU site that the latest version is 4.4.0 and the one
buildroot pulls in is 4.2.31.

Thanks
Hartley