GNU Automake Freeware - Generates makefile.in files from makefile.am input files, as part of the official GNU coding standards and build process. Requires GNU autoconf. http://www.gnu.org/software/automake

Imake Freeware - Generates traditional makefiles by using the CPP preprocessor and makedepend programs to assemble makefiles from templates and Imakefile control files. From the MIT X11 project. http://www.kitebird.com/imake-book/

Makedep Freeware - A dependency generator that analyzes C/C++ source code and generates a dependency file for inclusion into traditional makefiles. http://sourceforge.net/projects/makedep

Makeit Freeware - Generates GNU Makefiles for C/C++ projects, featuring dependency scanning and variant compilation support. Part of the OSE application development framework. http://ose.sourceforge.net

Smart Makefile Now Codefast - A makefile generator for generating traditional makefiles for software builds using no human labor. Features collections, dependency scanning, a knowledge base, parallel targets, and multiple platforms. http://www.smart-makefiles-now.com/index.html

Smart Perl Makefiles Now Codefast - A generator for Perl "makefiles" for software builds. Features collections, dependency scanning, a knowledge base, parallel builds, multiple platforms. http://www.smart-perl-makefiles-now.com

CMake Freeware - Generates traditional Unix/Windows makefiles for C/C++ projects from manually created input files written in the CMake language. http://www.cmake.org/HTML/Index.html

Bakefile Freeware - Generates traditional makefiles from a compiler-independent build tasks. Features output of Makefile.in files for autoconf, makefiles for vcc/bcc compilers, and use on wxWindows new build system. http://bakefile.sourceforge.net/

Makedepend Freeware - A dependency generator for C/C++ code used by Imake from the X11 distribution. Can be used without Imake to generate makefile dependency files. http://www.snake.net/software/imake-stuff/

Build Open Source - A software build system implemented on top of GNU make featuring position-independent non-recursive multi-makefile include-based structure, complete inter-project dependency tracking, and extensible translator framework. http://kolpackov.net/projects/build/