Converting Unix program to Windows

I need to run a Unix-based application called RomCal ( that outputs the liturgical calendar of the Catholic Church. Unfortunately all the files are compiled in Unix and I haven't the faintest clue how to take these un-tarred files and make them run on my Windows box.

I downloaded a C+ compiler from Bloodshed and can get the files to show up in there but it won't compile or run the program.

Any suggestions on how I can get this program to run on my PC would be appreciated.
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Alas, it uses several Unix specific library routines, the calls to which would have to be replaced with Windows equivalent code.  

Also, the build uses sed to create some of the needed .h files.  

I fear this would take a bit of an effort to create Windows compatible code.
Unless you have the source code, you're out of luck.  Programs are compiled and linked to refer to the run-time libraries of the terget OS.
My appologies - I just went to the link and saw it's source.

I downloaded the Ver6 source - I'll see what can be done.
You may want to take a look at CYGWIN. Maybe you can find a version of the program that has been compiled for a cygwin environment. Http://
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