or download this
cpanm (App::cpanminus) 1.7001 on perl 5.019010 built for x86_64-linux
Work directory is /home/wjw/.cpanm/work/1399045680.9633
You have make /usr/bin/make
...
make: *** [GMP.o] Error 1
-> FAIL Installing Math::GMP failed. See /home/wjw/.cpanm/work/1399045
+680.9633/build.log for details. Retry with
--force to force install it.