rebuild Boost with GCC-4.8

[WenyiY]

I met boost building issue when trying to build mlpack. So I searched online and found a similar post which has the same problem as mine, which is: ​https://stackoverflow.com/questions/19912862/compiling-boostprogram-options-on-mac-os-x-with-g-4-8-mac-ports

When I'm trying to do the solution the comment suggest which is compile boost by gcc48 by having the command line sudo port -ns upgrade --force boost configure.compiler=macports-gcc-4.8, but macports failed by showing the output as ---> Computing dependencies for boost The following dependencies will be installed: gcc48 Continue? [Y/n]: y Error: Follow https://guide.macports.org/#project.tickets to report a bug. I'm lost and don't know what to do now. Please send some help