K 10
svn:author
V 7
zeising
K 8
svn:date
V 27
2020-08-22T13:55:19.233286Z
K 7
svn:log
V 387
lang/libobjc2: Add -fcommon to CFLAGS

Fix the build of lang/libobjc2 after the llvm 11 import by adding -fcommon
to CFLAGS.  There are several patches needed to get this to build with
-fno-common, and I'm unsure about some of the changes I needed to make, so
build with -fcommon for now, until upstream can have a look as well.

MFH:		2020Q3 (implicit, -fno-common fixes, ok by joenum)

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