[patch] libstdc++/67173 Fix filesystem::canonical for Solaris 10.

[Jonathan Wakely]

On 17/09/15 12:16 +0100, Jonathan Wakely wrote:
>So if we use a counter, what's a sane maximum? Is MAXSYMLINKS in
><sys/param.h> the value the kernel uses? 20 seems quite low, I was
>thinking of a much higher number.

Until very recently Linux seemed to hardcode it to 40:
https://github.com/torvalds/linux/blob/v4.1/fs/namei.c#L865

That changed in v4.2 and I'm not sure what it does not, if this is the
relevant bit of code it uses MAXSYMLINKS:
https://github.com/torvalds/linux/blob/v4.2/fs/namei.c#L1647