Comment out unimplemented power spectrum fn as this trips up swig
double ccl_linear_matter_power(ccl_cosmology * cosmo, double a, double k);
double ccl_nonlin_matter_power(ccl_cosmology * cosmo, double a, double k);
-void ccl_linear_matter_powers(ccl_cosmology * cosmo, int n, double a[n], double k[n], double output[n]);
+//void ccl_linear_matter_powers(ccl_cosmology * cosmo, int n, double a[n], double k[n], double output[n]);
+// FIXME: Not implemented?
double ccl_sigmaR(ccl_cosmology *cosmo, double R);
double ccl_sigma8(ccl_cosmology *cosmo);
