Regarding the sqlite3 dependency: currently this library tries to work
with whatever sqlite3 version is installed, but if it at some point
requires features of relatively new versions then clients may need to
use the [sqlite3 amalgamation](http://www.sqlite.org/amalgamation.html)
when building this code. The main makefile will use those two files
(`sqlite3.c` and `sqlite3.h`) automatically if they are found in the `src/`
dir the build tree, but it does `not` include them in the Amalgamation build.
dir of the build tree, but it does *not* include them in the Amalgamation build.