Bug 2955. Workaround for lack of atomic operations in GCCE standard libraries (fall back to default use of Mutex)
# Visual Studio has some definitions set internally.
# Thus we do not need to redefine these.
if(equals(TEMPLATE_PREFIX, "vc") | equals(TEMPLATE, "vc*")) {
DEFINES -= _M_ARM
QMAKE_CXXFLAGS += -fp:precise
}