I am a developer on the Ethereum C++ client ( https://github.com/ethereum/webthree-umbrella) and have been working with an external developer on adding support to the codebase for building with the Intel Compiler on Ubuntu. Here is the full log of pain :-) https://github.com/ethereum/webthree-umbrella/issues/396 We've already merged various changes, and we appear to be getting down to the real hard ones, which are now mainly clustered around build issues with boost::multiprecision and seeming limitations with the Intel compiler and Like so: /home/libweb3core/libdevcore/Base64.h(48): error: no suitable conversion function from "boost::multiprecision::number<boost::multiprecision::backends::cpp_int_backend<160U, 160U, boost::multiprecision::unsigned_magnitude, boost::multiprecision::unchecked, void>, boost::multiprecision::et_off>" to "unsigned int" exists unsigned r = (unsigned)(a - a / 36 * 36); // boost's % is broken ^ detected during instantiation of "std::string dev::toBase36(const dev::FixedHash<N> &) [with N=20UL]" at line 114 of "/home/libethereum/libethcore/ICAP.cpp" This appears to be the key observation: https://github.com/ethereum/webthree-umbrella/issues/396#issuecomment-206590... "In summary, the intel platform supports this "convert_to" member function, but does not support implicit conversion of boost multiprecision types" Has anybody worked with Boost and the Intel compiler who might have some further insight into whether there is some way in which the Intel compiler "warts" can be handed within Boost? Or are we stuck with these nasty diffs/workarounds? https://github.com/ethereum/libethereum/pull/224/files https://github.com/ethereum/libweb3core/pull/68/files Cheers, Bob Summerwill Developer, Ethereum Foundation -- bob@summerwill.net