Correctly diagnose incomplete arrays with static storage in C (#134374) A file scope declaration without an initializer which is neither extern nor thread_local is a tentative definition. If the declaration of an identifier for an object is a tentative definition and has internal linkage, the declared type shall not be an incomplete type. Clang was previously failing to diagnose this in -pedantic mode. Fixes #50661 --------- Co-authored-by: Mariya Podchishchaeva <mariya.podchishchaeva@intel.com>
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