SYSTEM42
Ultra-Lightweight Superior Calibre Linux Distro
...Post in General Discussion forum.
The tool is simple to customize and has only a few configuration variables. There is one executable program and six proglets, 100 common GNU source tarballs required.
This Linux 4.2 kernel has a System.map with 22000 entries, in contrast to the slackware15 map having 155000 entries.
The uClibc works superbly with g++. I used bash 4.2 along with "the tool" to build the system. It uses static libraries and no optimizations.
This site:
Initial page/help,
Forums - kconfig, etc.
...