Florian Weimer wrote:
> It's not.  It may be a completely different system call.
So now I had a new idea how to figure out what difference the version of 
glibc we are compiling against can make: track down the symbol version:
nm -D --with-symbol-versions Downloads/libQt5WebEngineCore.so.5.15.2 | grep 
'@GLIBC_2\.33'
                 U fstat64@GLIBC_2.33
                 U fstatat64@GLIBC_2.33
                 U lstat64@GLIBC_2.33
                 U stat64@GLIBC_2.33

So we are getting new symbol versions of the above 4 functions. So now we 
only need to know what is different between the above and the syscalls 
presumably used previously:
nm -D --with-symbol-versions Downloads/libQt5WebEngineCore.so.5.15.1 | grep 
'stat\(at\)\?64'
                 U __fxstat64@GLIBC_2.2.5
                 U __fxstatat64@GLIBC_2.4
                 U __lxstat64@GLIBC_2.2.5
                 U __xstat64@GLIBC_2.2.5
(That's the version from F33 GA, definitely built against an older glibc.)

        Kevin Kofler
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