aco: Work around MSVC restrict in c99_compat.h
Future LLVM header leads to __declspec(__restrict), which is invalid. Just undefine the restrict macro to keep __declspec(restrict).
Fixes #5512 (closed).
Edited by James Park
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Future LLVM header leads to __declspec(__restrict), which is invalid. Just undefine the restrict macro to keep __declspec(restrict).
Fixes #5512 (closed).