gcc48-libs vs. gcc48 (gcc48/{x86_64--netbsd/,}lib)

[Edgar Fuß <ef%math.uni-bonn.de@localhost>]

My understanding is that, in order to build a program with gcc 4.8, you need 
gcc48, but in order to run it, you only need gcc48-libs.
However, the binary package gcc48 contains gcc48/lib, while that of gcc48-libs 
contains gcc48/x86_64--netbsd/lib, and I end up with a boost referring to the 
former, but only the later installed.
Manually installing gcc48 "fixes" the issue.