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Make it easy for projects to depend on libxrpl by adding an `ALIAS` target named `xrpl::libxrpl` for projects to link. The name was chosen because: * The current library target is named `xrpl_core`. There is no other "non-core" library target against which we need to distinguish the "core" library. We only export one library target, and it should just be named after the project to keep things simple and predictable. * Underscores in target or library names are generally discouraged. * Every target exported in CMake should be prefixed with the project name. By adding an `ALIAS` target, existing consumers who use the `xrpl_core` target will not be affected. * In the future, there can be a migration plan to make `xrpl_core` the `ALIAS` target (and `libxrpl` the "real" target, which will affect the filename of the compiled binary), and eventually remove it entirely. Also: * Fix the Conan recipe so that consumers using Conan import a target named `xrpl::libxrpl`. This way, every consumer can use the same instructions. * Document the two easiest methods to depend on libxrpl. Both have been tested. * See #4443.
These are modules and sources that support our CMake build.
== FindBoost.cmake ==
In order to facilitate updating to latest releases of boost, we've made a local copy of the FindBoost cmake module in our repo. The latest official version can generally be obtained here.
The latest version provided by Kitware can be tailored for use with the version of CMake that it ships with (typically the next upcoming CMake release). As such, the latest version from the repository might not work perfectly with older versions of CMake - for instance, the latest version might use features or properties only available in the version of CMake that it ships with. Given this, it's best to test any updates to this module with a few different versions of cmake.