TMake is a fast, lightweight, yet very powerful Build System. You can use TMake to build projects or create new ones. It supports C, C++, C#, Java, and Go compilers and over 100 different packages. It can perform C and C++ dependency checking. It is very fast. It uses for Lua for plain and simple build scripts. It has a GUI.
EBuild is a software project build, dependency management, and reporting technology. The aim is to be able to tackle any build problem in a structured, declarative, and elegant way. It is written in Java, but can be used to build all manner of projects and is extensible via a plugin interface. It is best compared to something like Maven (and in some respects Ivy). It aims to overcome certain design flaws and the resultant unnecessary complexity. The EBuild build model is general, but plugins need to be written in a JVM compatible language. Existing plugins all deal with the Java ecosystem, so EBuild is most suitable for Java and mixed technology software projects.