May I suggest that you also "privatize" boost:: ? My reasoning is the same and I know that the potential market (for consulting, support, etc.) would greatly increase. I'm not on the market myself, but I see people needlessly shutting themselves out and find that regretfull. This really depends on the default GNU compiler for particular RHEL, not on the boost:: itself. But if you already have a test installations then the additional work required is fairly small.
Admittendly I'm somewhat extreme in software conservatism having supported RHEL2.1 until the beginning of this year. The money was good, and the savings for my clients (from e.g. not upgrading ColdFusion from Macromedia to Adobe) were staggering.