Trying to install NEST on a OSX 10.8 machine and getting a

[code] sed: RE error: illegal byte sequence[/code]

error on make install? It seems OSX Lion has some issues with stricter regex parsing, which causes this error.

A workaround suggested here worked for me: unsetting your LANG variable before calling make install seems to be working. In unix terms this means: execute this before.

[code]unset LANG[/code]