CMake - CMake is an open-source, cross-platform family of tools designed to build, test and package software.
GNU Make - GNU Make is a tool which controls the generation of executables and other non-source files of a program from the program's source files.
MPW Make - Macintosh Programmer's Workshop (MPW) is an open, configurable, and scriptable development environment which provides the flexibility to support complex software development projects
Distcc - GitHub is where people build software. More than 27 million people use GitHub to discover, fork, and contribute to over 75 million projects.
Leiningen - Leiningen: automating Clojure projects
SCons - SCons is an Open Source software construction tool—that is, a next-generation build tool.