sympy/csympy — pull request #257 by certik (2014-07-16 17:52:49+00:00)
Title: Port to gcc 4.9.0

There is an issue with GMP, as described at:

https://gcc.gnu.org/gcc-4.9/porting_to.html

section "Header changes". So we just need to make sure the
is always declared before .

Otherwise it compiles and tests run.