It isn't that hard to install GMP on windows.
First, download the GMP tar file. You have to install cygwin on windows with gcc, make and m4. You can then run linux command using cygwin. Decompress the tar file, then (RECOMMEND to check out the INSTALL file).
Do ./configure
, if you need anything special like running c++ gmp code, you have to add flags.
Do./configure --help
to check it out.
Then run make
, make check
, and finally run make install
.
You will have to add the path back to your project properties. Enjoy !