feat: Replace CGO_ENABLED=0 with //go:build ignore #950
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It will soon become necessary to enable CGO in builds in order to use the MS Go distribution. Disabling CGO was always somewhat of a hack since we didn't need it anyway for eBPF. Now that we do, another solution is necessary. This uses the
//go:build ignore
directive to exclude all C source files from the Go toolchain. This is necessary even within C source files even though these C source files exist within an underscore-prefixed directory. Go's behavior here is likely erroneous, and an issue has been filed for its repair:golang/go#69639