Which Zos version supports C++11 and this protobuf for xlc compiler ?

[sandeepgarg-max]

On Zos 2.4 ,C++11 is not supported,For which version of Zos this protobuf supports XLC++ compiler?

all: protoc

AR=ar
ARFLAGS=rc
RANLIB=ranlib
ifdef XLCPP
CPP=$(XLCPP)
else
CPP:=/home/opnzos/local/xlcpp/bin/xlclang++
endif