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# FreeBSD Build Guide
**Updated for FreeBSD [12.2](https://www.freebsd.org/releases/12.2R/announce.html)**
This guide describes how to build bitcoind, command-line utilities, and GUI on FreeBSD.
## Dependencies
The following dependencies are **required**:
Library | Purpose | Description
----------------------------------------------------------------------|------------|----------------------
[autoconf](https://svnweb.freebsd.org/ports/head/devel/autoconf/) | Build | Automatically configure software source code
[automake](https://svnweb.freebsd.org/ports/head/devel/automake/) | Build | Generate makefile (requires autoconf)
[libtool](https://svnweb.freebsd.org/ports/head/devel/libtool/) | Build | Shared library support
[pkgconf](https://svnweb.freebsd.org/ports/head/devel/pkgconf/) | Build | Configure compiler and linker flags
[git](https://svnweb.freebsd.org/ports/head/devel/git/) | Clone | Version control system
[gmake](https://svnweb.freebsd.org/ports/head/devel/gmake/) | Compile | Generate executables
[boost-libs](https://svnweb.freebsd.org/ports/head/devel/boost-libs/) | Utility | Library for threading, data structures, etc
[libevent](https://svnweb.freebsd.org/ports/head/devel/libevent/) | Networking | OS independent asynchronous networking
The following dependencies are **optional**:
Library | Purpose | Description
---------------------------------------------------------------------------|------------------|----------------------
[db5](https://svnweb.freebsd.org/ports/head/databases/db5/) | Berkeley DB | Wallet storage (only needed when wallet enabled)
[qt5](https://svnweb.freebsd.org/ports/head/devel/qt5/) | GUI | GUI toolkit (only needed when GUI enabled)
[libqrencode](https://svnweb.freebsd.org/ports/head/graphics/libqrencode/) | QR codes in GUI | Generating QR codes (only needed when GUI enabled)
[libzmq4](https://svnweb.freebsd.org/ports/head/net/libzmq4/) | ZMQ notification | Allows generating ZMQ notifications (requires ZMQ version >= 4.0.0)
[sqlite3](https://svnweb.freebsd.org/ports/head/databases/sqlite3/) | SQLite DB | Wallet storage (only needed when wallet enabled)
[python3](https://svnweb.freebsd.org/ports/head/lang/python3/) | Testing | Python Interpreter (only needed when running the test suite)
See [dependencies.md](dependencies.md) for a complete overview.
## Preparation
### 1. Install Required Dependencies
Install the required dependencies the usual way you [install software on FreeBSD](https://www.freebsd.org/doc/en/books/handbook/ports.html) - either with `pkg` or via the Ports collection. The example commands below use `pkg` which is usually run as `root` or via `sudo`. If you want to use `sudo`, and you haven't set it up: [use this guide](http://www.freebsdwiki.net/index.php/Sudo%2C_configuring) to setup `sudo` access on FreeBSD.
```bash
pkg install autoconf automake boost-libs git gmake libevent libtool pkgconf
```
### 2. Clone Bitcoin Repo
Now that `git` and all the required dependencies are installed, let's clone the Bitcoin Core repository to a directory. All build scripts and commands will run from this directory.
``` bash
git clone https://github.com/bitcoin/bitcoin.git
```
### 3. Install Optional Dependencies
#### Wallet Dependencies
It is not necessary to build wallet functionality to run bitcoind or the GUI. To enable legacy wallets, you must install `db5`. To enable [descriptor wallets](https://github.com/bitcoin/bitcoin/blob/master/doc/descriptors.md), `sqlite3` is required. Skip `db5` if you intend to *exclusively* use descriptor wallets
###### Legacy Wallet Support
`db5` is required to enable support for legacy wallets. Skip if you don't intend to use legacy wallets
```bash
pkg install db5
```
###### Descriptor Wallet Support
`sqlite3` is required to enable support for descriptor wallets. Skip if you don't intend to use descriptor wallets.
``` bash
pkg install sqlite3
```
---
#### GUI Dependencies
###### Qt5
Bitcoin Core includes a GUI built with the cross-platform Qt Framework. To compile the GUI, we need to install `qt5`. Skip if you don't intend to use the GUI.
```bash
pkg install qt5
```
###### libqrencode
The GUI can encode addresses in a QR Code. To build in QR support for the GUI, install `libqrencode`. Skip if not using the GUI or don't want QR code functionality.
```bash
pkg install libqrencode
```
---
#### Test Suite Dependencies
There is an included test suite that is useful for testing code changes when developing.
To run the test suite (recommended), you will need to have Python 3 installed:
```bash
pkg install python3
```
---
## Building Bitcoin Core
### 1. Configuration
There are many ways to configure Bitcoin Core, here are a few common examples:
##### Wallet (BDB + SQlite) Support, No GUI:
This explicitly enables legacy wallet support and disables the GUI. If `sqlite3` is installed, then descriptor wallet support will be built.
```bash
./autogen.sh
./configure --with-gui=no --with-incompatible-bdb \
BDB_LIBS="-ldb_cxx-5" \
BDB_CFLAGS="-I/usr/local/include/db5" \
MAKE=gmake
```
##### Wallet (only SQlite) and GUI Support:
This explicitly enables the GUI and disables legacy wallet support. If `qt5` is not installed, this will throw an error. If `sqlite3` is installed then descriptor wallet functionality will be built. If `sqlite3` is not installed, then wallet functionality will be disabled.
```bash
./autogen.sh
./configure --without-bdb --with-gui=yes MAKE=gmake
```
##### No Wallet or GUI
``` bash
./autogen.sh
./configure --without-wallet --with-gui=no MAKE=gmake
```
### 2. Compile
**Important**: Use `gmake` (the non-GNU `make` will exit with an error).
```bash
gmake # use -jX here for parallelism
gmake check # Run tests if Python 3 is available
```
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