Fails to find boost in "make" step

[mdorier]

Despite the configure script successfully finding the required boost libraries (system, filesystem, thread, and chrono) when I pass --with-boost=/path/to/my/installation/of/boost, the make step fails with this error:

In file included from database.cc:19:
configuration.h:27:10: fatal error: boost/cstdint.hpp: No such file or directory
   27 | #include <boost/cstdint.hpp> // MSVC 2008 does not have stdint

I checked and my installation of boost does have this header.

I'm on an Ubuntu machine. Boost was installed manually to a custom prefix (not as a system package).