Building Bitcoin Core

Building Bitcoin Core from Source

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TL;DR

Building Bitcoin Core from source is essential for independent verification and development. The process involves using autogen.sh, configure, and make after installing necessary dependencies.

Building Bitcoin Core directly from the source code rather than downloading a pre-compiled binary is a fundamental skill for developers and serious node operators.

General Steps

The standard process follows these steps (example for Unix-like systems):

1. Install Dependencies: You must install compilers (gcc or clang), make, autoconf, libtool, and libraries like boost, libevent, sqlite3 (for the wallet), etc.
2. Clone the Repository: Get the code using git clone https://github.com/bitcoin/bitcoin.git.
3. Autogen: Run ./autogen.sh to generate the configure script.
4. Configure: Run ./configure. You can pass flags to customize the build. Common flags:
   • --without-gui: Builds only bitcoind and command-line tools, stripping out Qt/GUI dependencies, speeding up compilation.
   • --disable-wallet: Compiles without wallet support if you only need a routing node or are developing non-wallet features.
5. Compile: Run make (or make -j N where N is the number of CPU cores to parallelize the build).

Building from source allows you to verify what you run and the ability to test new changes manually.

Related Notes

• Bitcoin-Core-Architecture
• Key-Source-Files

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