[Xen-devel] Compile issues for xen 4.1.0rc with gcc 4.6 on rawhide

[M A Young <m.a.young@xxxxxxxxxxxx>]

If I try to build xen-4.1.0-rc on Fedora rawhide it fails. The problem is 
that the compiler now sets -Werror=unused-but-set-variable and 
-Werror=uninitialized by default (I don't know if this is a rawhide 
feature or one from gcc 4.6). I can of course work around this by changing 
the compile options but I am wondering if this is something that should be 
fixed properly.
I have looked a bit at the set but unused variables reported though there 
are a lot of them, and in some cases it is reasonable, for example the 
variable is used in an ASSERT test that is removed by the pre-processor, 
but in other cases the variable is set for no apparent reason and perhaps 
it should being used but isn't. You can tell the compiler not to warn you 
about a variable by adding __attribute__ ((unused)) after its definition 
(in gcc at least), or in many cases you can just remove the variable.
        Michael Young

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel