RTAI build cannot use labs()#3442
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andypugh merged 1 commit intoLinuxCNC:masterfrom May 19, 2025
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There is no labs() function in the Linux kernel and a usable abs() macro from
linux/math.hin newer Linux kernels is apparently not available in the older RTAI kernels. This PR solves the problem by making a local inline absolute function for the purpose. It is no problem that the compiler may not use a built-in function because it is not a critical path.This fixes #3435.