K 10
svn:author
V 6
fluffy
K 8
svn:date
V 27
2020-01-02T05:44:14.177783Z
K 7
svn:log
V 279
databases/percona57-*: Fix build for i386

Make build-script assume that FreeBSD's Clang doesn't
have "atomic_*" functions builtin implemented on i386

While here, allow to build on DragonFly BSD and
drop "-fabi-version=2" from C/CXX flags

Reported by:	pkg-fallout
MFH:		2020Q1

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