Hi guys, I am using CUBA to perform a MC integration in a part of my code: ==================== FUNCP_CUBA fp; compile_ex(lst(hadron_sigma.expand()),lst(x_A,x_B), fp); // Starting VEGAS // By invocation of compile() the expression in expr is converted into the // appropriate function pointer Vegas(NDIM, NCOMP, fp, EPSREL, EPSABS, VERBOSE, MINEVAL, MAXEVAL, NSTART, NINCREASE, &neval, &fail, integral, error, prob); ==================== It seems that some package is missing in my system because I am got this kind of errors: ================== ./GiNaCd2AmNG: In function ‘compiled_ex’: ./GiNaCd2AmNG:7: error: ‘std’ undeclared (first use in this function) ./GiNaCd2AmNG:7: error: (Each undeclared identifier is reported only once ./GiNaCd2AmNG:7: error: for each function it appears in.) ./GiNaCd2AmNG:7: error: expected ‘;’ before ‘:’ token terminate called after throwing an instance of 'std::runtime_error' what(): excompiler::compile_src_file: error compiling source file! ================= The file above had this preamble: ================== #include <stddef.h> #include <stdlib.h> #include <math.h> =================== the error is in std::complex<> function. Had anyone some kind of problem? Regards, Marco