GCC5 optimization level causes runtime error in WINE

[Michael Cronenworth]

On 03/08/2015 07:30 AM, Jonathan Wakely wrote:
> Do you have any more details available somewhere I can see them? Maybe
> in Fedora's bugzilla or on the devel@ list?

The issue is only affecting 64-bit wine. A bug is opened but doesn't contain much 
additional information.

https://bugzilla.redhat.com/show_bug.cgi?id=1192725

> Although -fno-strict-aliasing is unlikely to make any difference
> because strict aliasing is only enabled at -O2 and above.
>
> You can also try -fsanitize=undefined to detect undefined behaviour at runtime.

As seen in my other e-mail, strict aliasing is disabled by wine. I attempted to 
build with the sanitize option, but gcc loops indefinitely when compiling 
"tools/makedep.c". I let it sit for several hours before breaking out. Wine normally 
takes about 5 minutes to compile on my machine. I can add the sanitize option to gcc 
4.9 and it compiles makedep.c in a second.

Thanks,
Michael