[Mesa-dev] [Bug 95180] rasterizer/memory/Convert.h:170:9: error: ‘__builtin_isnan’ is not a member of ‘std’

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=95180

--- Comment #2 from Jose Fonseca <jfonseca at vmware.com> ---
I wonder if there's a

  #include <cmath>

missing somewhere.

Also, per
https://cgit.freedesktop.org/mesa/mesa/commit/?id=649704f1f7c9e1d0990d34a76154b2eb656bee42
, it sounds that GLIBC prior to 2.23 does not have isnan in std namespace. 
That might be the problem.


The easiest way to check GLIBC version is `ldd --version`

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