7.4.7.10 Building DLLs with GNAT Project files

There is nothing specific to Windows in the build process. See the `Library Projects' section in the `GNAT Project Manager' chapter of the `GPRbuild User’s Guide'.

Due to a system limitation, it is not possible under Windows to create threads when inside the DllMain routine which is used for auto-initialization of shared libraries, so it is not possible to have library level tasks in SALs.