[Buildroot] [Bug 7592] Buildroot GCC: -lto requires plugin support in ranlib

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=7592

--- Comment #3 from syntheticpp at gmx.net 2014-11-09 11:11:20 UTC ---
The problem is that arm-linux-gcc-ar/ranlib are also wrapped by
ext-toolchain-wrapper.
When those tools just link to the external toolchain lto works (without
switching to gold)

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