[ros-diffs] [sginsberg] 41990: Fix definition of KeInitializeSpinLock for x86 - it never inlined the operation. It should check if WIN9X_COMPAT_SPINLOCK is defined and don't inline it if so. Also, don't define this flag when building ntoskrnl (MS DDK/WDK compilation fix) so we get the inline. Instead, make the implementation "internal" to fix compilation.