On Wed, 6 Oct 2021 at 11:10, Ross Burton <[email protected]> wrote: > This depends on CONFIG_GCC_PLUGINS which I don't believe is enabled in > any of the default configurations. meta-arm builds a few kernels with > defconfig, which does.
Sorry, brain still not warmed up yet. CONFIG_GCC_PLUGINS needs to be enabled, but the real difference is that using the normal GCC pulls libmpc into the sysroot via implicit dependencies. If you use an external toolchain (like meta-arm-toolchain) this doesn't happen, and the dependency needs to be explicit. Ross
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