We can't have too many braces: one pair is just enough because we're
actually calling the QBasicAtomicInt's constructor. That is, we're using
the uniform initialization procedure.
Required for Clang 3.7:
qmetatype.h:1772:46: error: braces around scalar initializer [-Werror,-Wbraced-scalar-init]
static QBasicAtomicInt metatype_id = Q_BASIC_ATOMIC_INITIALIZER(0);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
qatomic_cxx11.h:331:43: note: expanded from macro 'Q_BASIC_ATOMIC_INITIALIZER'
#define Q_BASIC_ATOMIC_INITIALIZER(a) { {a} }
^~~
Change-Id: Ib306f8f647014b399b87ffff13f1f2db1fabe393
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>