Executables made by Linux is not running on Cygwin

["Rajagopal, Prasanth" <Prasanth dot Rajagopal at analog dot com>]

Hi all,
 
I made some executables under Linux and it is not running under Cygwin.
It says command is not supported, if I run the exe.
I installed the cygwin latest one and I am new to Unix / Cygwin. What
other package has to be installed. I installed the
 
Note that the original codes are said to be tested under both Linux and
Cygwin. For lInux it says gcc and gmake. 
 
Thanks for any help.
 
Regards,
prasanth.

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