What's my package manager (WMPM) is a very simple and lightweight command-line utility that allows you to check which package managers are installed on your system. This can be especially useful if you've just switched distributions, and keep forgetting which package manager the distribution uses... yes, I wrote this for myself.
After installing WMPM, simply open your terminal (emulator) of choice and type
wmpm
That is quite literally it.
Included in the source files is a build.sh script. You can simply run the script to build it.
G++ is required for compiling.