gcc 4.9.1 build on linux

[bedeho]

Running ubuntu 15.04, which ships with gcc4.9.1, which means the build step

sudo apt-get install gcc-4.8-plugin-dev

works, but does not install the plugin on the right compiler? Hence the next configuration step fails, and you are warned that g++ has no plugin. If you try to fix this by doing

sudo apt-get install gcc-4.9-plugin-dev

then you run into the issue that odb simply can't build due to some bug

http://codesynthesis.com/pipermail/odb-users/2014-May/001848.html

if you then try to down a newer version of odb, e.g.

http://www.codesynthesis.com/download/odb/2.4/libodb-2.4.0.tar.bz2

then it builds, but for some reason the overall build script for mSIGNA wallet still fails and says

make: odb: Command not found
Makefile:59: recipe for target 'odb/Schema-odb-sqlite.hxx' failed
make: *** [odb/Schema-odb-sqlite.hxx] Error 127

I have probaly done something wrong here, but if not, then people will start running into this as they use newer versions of ubuntu/linux.