GNU bug report logs - #42448
readdir misbehaves when running 32-bit user space on a 64-bit-kernel - kernel/userspace interface mismatch in getdents64

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From: Brett Gilio <brettg <at> gnu.org>
To: 42448 <at> debbugs.gnu.org
Subject: bug#42448: A possible solution
Date: Mon, 20 Jul 2020 18:04:07 -0500

As Marius Bakke pointed out on IRC, this issue is related to a change in
CMake where after 3.15 they removed the explicit `#define
_FILE_OFFSET_BITS 64`. The solution solution to this is to add

--8<---------------cut here---------------start------------->8---
CFLAGS="-D_FILE_OFFSET_BITS=64"
CXXFLAGS="-D_FILE_OFFSET_BITS=64"
--8<---------------cut here---------------end--------------->8---

to CMakes compilation procedure. This is a core-updates change. I will
leave this issue open for now in case this needs more
investigation. Since I am just coming off of a haitus I think there are
changes to the core-updates and staging procedures so I dont think I am
comfortable making this change myself.

Brett Gilio

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