Fixed compatibility issues for 64-bit AIX

I added bbigtoc flag because I was getting some TOC overflow errors in the some of the submodules, including math, and I wanted to fix the problem in a more permanent way that did not involve the user adding that flag to their user-config.jam. The tests might run slower, but I don't think this is really an issue.

The archiver that boost chooses for AIX to use is not its native archiver, it is the linux one. This in itself is not a problem except for the fact that there is a typo in the last line where there is an extra space that causes a syntax error.