Re: GCC 10 how disable redefinition of thing error ?

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On Tue, 2020-02-04 at 21:13 -0500, David Malcolm wrote:
> On Wed, 2020-02-05 at 01:38 +0000, Sérgio Basto wrote:
> > Hi, 
> > Packages gpm, VirtualBox and webalizer have the building problem as
> > described for gpm in [1] , but VirtualBox have thousands of lines
> > with
> > this error , I'd like disable this check on VirtualBox until
> > VirtualBox
> > fix it , 
> > the author of pull request [1] also comment "The error also happens
> > if
> > CFLAGS=-fno-common passed explicitly." , any quick way to fix these
> > builds ? 
> 
> The easiest way is to add -fcommon to the build flags for the
> package:
>   https://gcc.gnu.org/gcc-10/porting_to.html#common
> (but FWIW it's best to fix it properly by adding extern to the decls
> in
> the headers, as C can generate slightly faster code that way).
                  ^
                  GCC, I meant to say
                  
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