CMake - CMake is an open-source, cross-platform family of tools designed to build, test and package software.
ReleaseNotes.io - Update your Product? Update your Customers!
SCons - SCons is an Open Source software construction tool—that is, a next-generation build tool.
Rake - Rake is a software task management and build automation tool.
Ninja Build - Ninja is a small build system with a focus on speed.
SBT - SBT is a build tool for Scala, like Ant or Maven but with hieroglyphics.