Back in 2014 I made some error reporting changes in 25333a26197b55c23debb38740ed875999aa795a (#3986), to do with reporting the exact boost library that was not being found. These were recently (unintentionally, I assume) removed in aa85dcf47288e86f283f38fe47c022ffcfa53d8b (#13095) by @fanquake.
I'm not sure how much of a problem this is, but wanted to create an issue nevertheless because these this error still gets reported all the time and for troubleshooting it was useful: #3219 (comment) .
If people feel this is worth it it'd be trivial to re-do the change.