MinGW is a free gcc for Windows, not using the Cygwin.dll Posix compatibility layer. For the sternons tools, MinGW is to be preferred (or a purely Windows based compiler), since it is to mainly be designed to not contain any Unix or Posix related calls.
I tested to install MinGW on a VMware XP copy of mine, and compile sternons mkmap. I generated SVG:s and the result was successful. Thus: mkmap compilable under a Unix gcc, Cygwin and MinGW.
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