[boost] Boost and subdirectories named 'debug'

From: Edward Diener (eldiener_at_[hidden])
Date: 2008-05-07 15:47:32

Boost has some subdirectories named 'debug' which contain static files 
used by some Boost libraries and their dependencies.

In some build systems, like MSVC, the 'debug' directory is a directory 
where intermediate build files, such as object files, are put, and these 
directories are dynamic in the sense that there contents can always be 
regenerated from source. A common, if perhaps erroneous, technique of 
forcing rebuilds in these systems is to wipe out the 'debug' 
directories. If Boost is in some tree where the 'debug' directories are 
all being wiped out indiscriminately, then the Boost 'debug' directories 
get wiped out and source using Boost libraries and/or their dependencies 
which have 'debug' directories will fail to compile.

Yes, I know in the age of IDEs that no one is supposed to build like 
that anymore, or that it is a very good idea not to put Boost in some 
tree where the end user decides to arbitrarily wipe out all 'debug' 
directories in order to force a rebuild, but these things can happen. 
Because of that this is a gentle suggestion that Boost in the future 
choose some other name for a subdirectory than 'debug' for those 
libraries using that name.