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Nao cross_compilation libmpfr.so.1 error

When trying to cross-compile for the Nao following the instructions (http://www.ros.org/wiki/nao/Tutorials/Cross-Compiling)

I get the following library error:

/media/external/nao-cross-toolchain-1.10.52/cross/geode/bin/../libexec/gcc/i586-linux/4.3.3/cc1plus: error while loading shared libraries: libmpfr.so.1: cannot open shared object file: No such file or directory

That file is no where to be found in the nao-cross-toolchain folder. I do, however, have libmpfr.so.4 in my /usr/lib directory. Any suggestions on how to either download the libmpfr.so.1 file or point the compilation to the appropriate location?