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.
CMake
Freeware - Generates traditional Unix/Windows makefiles for C/C++ projects from manually created input files written in the CMake language.
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.
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.
Makedep
Freeware - A dependency generator that analyzes C/C++ source code and generates a dependency file for inclusion into traditional makefiles.
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.
Makeit
Freeware - Generates GNU Makefiles for C/C++ projects, featuring dependency scanning and variant compilation support. Part of the OSE application development framework.
Smart Makefile Now
Codefast - Smart makefile, perlfile, and antfile generators for software processes, including software builds. Features collections, dependency scanning, a knowledge base, makefiles for parallel builds, multiple platforms.