Dependencies ============ These are the dependencies currently used by Bitcoin Core. You can find instructions for installing them in the `build-*.md` file for your platform. | Dependency | Version used | Minimum required | CVEs | Shared | [Bundled Qt library](https://doc.qt.io/qt-5/configure-options.html#third-party-libraries) | | --- | --- | --- | --- | --- | --- | | Berkeley DB | [4.8.30](https://www.oracle.com/technetwork/database/database-technologies/berkeleydb/downloads/index.html) | 4.8.x | No | | | | Boost | [1.71.0](https://www.boost.org/users/download/) | [1.58.0](https://github.com/bitcoin/bitcoin/pull/19667) | No | | | | Clang | | [5.0+](https://releases.llvm.org/download.html) (C++17 support) | | | | | Expat | [2.2.7](https://libexpat.github.io/) | | No | Yes | | | fontconfig | [2.12.1](https://www.freedesktop.org/software/fontconfig/release/) | | No | Yes | | | FreeType | [2.7.1](https://download.savannah.gnu.org/releases/freetype) | | No | | [Yes](https://github.com/bitcoin/bitcoin/blob/master/depends/packages/qt.mk) (Android only) | | GCC | | [7+](https://gcc.gnu.org/) (C++17 support) | | | | | HarfBuzz-NG | | | | | [Yes](https://github.com/bitcoin/bitcoin/blob/master/depends/packages/qt.mk) | | libevent | [2.1.12-stable](https://github.com/libevent/libevent/releases) | [2.0.21](https://github.com/bitcoin/bitcoin/pull/18676) | No | | | | libnatpmp | git commit [4536032...](https://github.com/miniupnp/libnatpmp/tree/4536032ae32268a45c073a4d5e91bbab4534773a) | | No | | | | libpng | | | | | [Yes](https://github.com/bitcoin/bitcoin/blob/master/depends/packages/qt.mk) | | librsvg | | | | | | | MiniUPnPc | [2.2.2](https://miniupnp.tuxfamily.org/files) | | No | | | | PCRE | | | | | [Yes](https://github.com/bitcoin/bitcoin/blob/master/depends/packages/qt.mk) | | Python (tests) | | [3.6](https://www.python.org/downloads) | | | | | qrencode | [3.4.4](https://fukuchi.org/works/qrencode) | | No | | | | Qt | [5.12.11](https://download.qt.io/official_releases/qt/) | [5.9.5](https://github.com/bitcoin/bitcoin/issues/20104) | No | | | | SQLite | [3.32.1](https://sqlite.org/download.html) | [3.7.17](https://github.com/bitcoin/bitcoin/pull/19077) | | | | | XCB | | | | | [Yes](https://github.com/bitcoin/bitcoin/blob/master/depends/packages/qt.mk) (Linux only) | | xkbcommon | | | | | [Yes](https://github.com/bitcoin/bitcoin/blob/master/depends/packages/qt.mk) (Linux only) | | ZeroMQ | [4.3.1](https://github.com/zeromq/libzmq/releases) | 4.0.0 | No | | | | zlib | | | | | [Yes](https://github.com/bitcoin/bitcoin/blob/master/depends/packages/qt.mk) | Controlling dependencies ------------------------ Some dependencies are not needed in all configurations. The following are some factors that affect the dependency list. #### Options passed to `./configure` * MiniUPnPc is not needed with `--without-miniupnpc`. * libnatpmp is not needed with `--without-natpmp`. * Berkeley DB is not needed with `--disable-wallet` or `--without-bdb`. * SQLite is not needed with `--disable-wallet` or `--without-sqlite`. * Qt is not needed with `--without-gui`. * If the qrencode dependency is absent, QR support won't be added. To force an error when that happens, pass `--with-qrencode`. * ZeroMQ is needed only with the `--with-zmq` option. #### Other * librsvg is only needed if you need to run `make deploy` on (cross-compilation to) macOS. * Not-Qt-bundled zlib is required to build the [DMG tool](../contrib/macdeploy/README.md#deterministic-macos-dmg-notes) from the libdmg-hfsplus project.