[vbox-dev] problem with new GCC 10

Valdis Kl=?utf-8?Q?=c4=93?=tnieks valdis.kletnieks at vt.edu
Wed Feb 5 01:35:52 UTC 2020

On Wed, 05 Feb 2020 01:06:27 +0000, S?rgio Basto said:
> Hi, 
> Now seems to me, GCC10 forbids multiple definitions , I got at least  3 packages with this 
> problem (of multiple definitions [1])  but in Virtual Box we have thousand of lines this these [2]

This is because gcc 10 changes the default to -fno-common.

I'll let somebody else figure out if it's better to fiddle with CFLAGS or
go through and for each problematic variable, make one instance the
official one and make all the others 'extern' references to it.
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