[Bugs] [Bug 1508025] symbol-check.sh is not failing for legitimate reasons

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1508025

M. Scherer <mscherer at redhat.com> changed:

           What    |Removed                     |Added
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                 CC|                            |mscherer at redhat.com



--- Comment #1 from M. Scherer <mscherer at redhat.com> ---
So, Nigel and I discussed about it while waiting for my cheesecake, and he
suggested that this could be caused by --enable-debug. As I had my laptop with
me, we tested and indeed, the --enable-debug is what matter. 

After a few tries, we narrowed it down to using -O0 vs -O2. --enable-debug
switch the flags to -O0)

My understanding is that -O0 do not inline the lstat64 function, but -O2 do
replace it with __lxstat64.

A quick search on Google show this is a recent optimisation of glibc and gcc 5:
https://sourceware.org/ml/libc-alpha/2015-08/msg00560.html

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