I can't vouch for the binary releases, because I've never used them, but that should *definitely* be shipped somewhere by the cross TC.
It certainly is when building from source:
Code:
find ~/x-tools/arm-kindlepw2-linux-gnueabi -name features.h
/home/niluje/x-tools/arm-kindlepw2-linux-gnueabi/arm-kindlepw2-linux-gnueabi/include/c++/7.5.0/parallel/features.h
/home/niluje/x-tools/arm-kindlepw2-linux-gnueabi/arm-kindlepw2-linux-gnueabi/sysroot/usr/include/features.h
You do *NOT* want to be using your host's version of that.