This is the build2 toolchain amalgamation. It includes the build system (build2), package manager (bpkg), and their prerequisite libraries (libbutl and libbpkg). build2 is an open source, cross-platform toolchain for building and packaging C++ code. Its aim is a modern build system and package manager for the C++ language that provide a consistent, out of the box interface across multiple platforms and compilers. For more information see: https://build2.org/ See the INSTALL file for the prerequisites and installation instructions. See the doc/ directory for documentation. Send questions, bug reports, or any other feedback to the users@build2.org mailing list. You can post without subscribing. See https://lists.build2.org for searchable archives, posting guidelines, etc.