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Malte Ubl
69e26b417c
`ScrSaState scr_sa;` was a tentative definition, which the runtime build
emits as a COMMON symbol. Library localization (abi.localize_runtime)
deliberately keeps COMMON symbols global (the ASan image-registration guard
relies on that), so every runtime-localized library archive exported
scr_sa next to its declared API, failing tests/harness/library-multi.test.ts
M1 ("external definitions equal the declared set exactly").
Initialize it explicitly so it is a regular zero-initialized definition that
localization demotes like every other runtime global. No other global added
by the stack is a tentative definition. The library-multi suite passes
(it fails M1 without this change).