id summary reporter owner description type status milestone component version severity resolution keywords cc 10258 b2 fails to find gcc if bootstrapped with clang Niall Douglas Vladimir Prus "The system showing the problem is Ubuntu 14.04 LTS on ARMv7a. x86 or x64 may not have the same problem. This is in Boost 1.56 beta. What my CI was always doing for bootstrap is this: ./bootstrap.sh --with-toolset=clang Unfortunately, this breaks: ./b2 toolset=gcc ... iff you bootstrapped with clang! It appears to set the gcc executable path to an empty string with obvious consequences. ./b2 toolset=clang works fine though, as does bootstrapping with gcc whereupon both gcc and clang toolsets work fine. " Bugs new To Be Determined build Boost Development Trunk Problem