maintainer-feedback requested: [Bug 248738] multimedia/libv4l: Fix build with -fno-common (clang 11 and gcc 10)

[bugzilla-noreply at freebsd.org]

Bugzilla Automation <bugzilla at FreeBSD.org> has asked freebsd-multimedia
(Nobody) <multimedia at FreeBSD.org> for maintainer-feedback:
Bug 248738: multimedia/libv4l: Fix build with -fno-common (clang 11 and gcc 10)
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=248738



--- Description ---
In base r364284, I imported clang 11 into head. Like gcc 10, it now defaults to
-fno-common, meaning that duplicated global symbols will most likely lead to
link errors. Here is a patch to fix this port's duplicated global symbols.