[Bug 48878] Debian packaging: set cap_net_raw to allow sendings pings, do out-of-tree builds and enable multi-arch builds from same machine

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48878

--- Comment #11 from Zebediah Figura  ---
Not commenting on other changes, but:

(In reply to Luca Boccassi from comment #8)
> +# gcc 10 uses -fno-common
> +export DEB_CFLAGS_MAINT_APPEND+=-fcommon

We shouldn't need this, not after ea032bb7f8.
> +CONFLAGS=--prefix=/opt/wine-staging \

Is this a typo?