I am a developer with several years of experience in programming, mostly Java an Windows (Visual Studio, DevC++, PHP MySql, etc) environments. Although I know how to program in C, C++ I have never had interaction with any of the GNU tool chains for maintaining used code in many Open Source software (such as Makefiles, autotools, cmake). I know the basic usage of those (what are they for and how to create one) from some online tutorials I have looked.