Thanks ... much appreciated.
As a reference, I built the image with these extras installed:
IMAGE_INSTALL += "nano git hostap-utils hostap-daemon dhcp-server iptables libnl libnl-dev openssl autoconf automake binutils binutils-symlinks cpp cpp-symlinks gcc gcc-symlinks g++ g++-symlinks gettext make libstdc++ libstdc++-dev file coreutils"