PowerVR SDK for Windows emulation and Cygwin

The Windows emulation SDK uses Visual Studio to build the demos and training courses.  I don’t have visual studio but do have cygwin that provides compilers for windows target.  Can I use the cygwin environment to build and run the demos?  I tried the first training course and it compiles but the linker cannot find the opengles libraries (or it doesn’t recognize the format).  I have the makefiles pointing to were the libs are located.  Any help or is cygwin out of the question for a build environment.  TNX

check this.