Reducing C++ compile time is two fold. First: find clever tools (like distcc) to help spread out the processing required. Second: structure your code (from the beginning) for speed of compilation. The links that follow should help you do just that:

• http://www.rakkar.org/blog/?p=69

• http://www.devx.com/cplus/Article/28105/1954?pf=true

• http://gamecreator.blogspot.com/2006/08/faster-build-times-reducing-header.html

• http://developers.sun.com/sunstudio/articles/CC_perf/content.html

• http://www.gamesfromwithin.com/articles/0403/000013.html (includes a script to count how many times a header file is #included, assuming you're using doxygen to process your source files somewhere along the line)

• http://www.digitalmars.com/ctg/makedep.html (a compile tool that tells what header files a .cpp file include)

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