flowey: only build with LTO on macOS #87
Merged
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To restore build performance of flowey on non-macOS systems, add a trampoline binary to build flowey with LTO only on macOS.
Ideally, we'd work around this in a less invasive way, but cargo does not have support for target-specific profile options, target-specific environment variables, target-specific aliases, or anything else I can think of that would help here.
(We could also have a config.toml that gets passed to flowey invocations and sets a custom rust flag specifically for macos. However, due to other cargo limitations, that would require that all flowey invocations occur at the root of the workspace, which is annoying.)