Dependencies

Usage

To build dependencies for the current architecture + OS:

make

To build for another architecture/OS, you may need to install some required packages first. Please have a look at the section "Install the required dependencies" below to check for your target platform.

Once you have the required packages installed and done any necessary preparation, run

make build-<platform>

Where <platform> is one of the following:

linux64
linux-aarch64
osx
win64

For example, building the dependencies for Linux on ARM64:

make build-linux-aarch64

To use the dependencies for building Bitcoin Cash Node, you need to set the platform file to be used by cmake. The platform files are located under cmake/platforms/. For example, cross-building for Linux on ARM64 (run from the project root):

mkdir build_arm64
cd build_arm64
cmake -GNinja .. -DENABLE_MAN=OFF -DCMAKE_TOOLCHAIN_FILE=../cmake/platforms/LinuxAArch64.cmake
ninja

Note that it will use all the CPU cores available on the machine by default. This behavior can be changed by setting the JOBS environment variable (see below).

For Mac OSX building, some preparatory steps are needed, including unpacking the suitable SDK (how to obtain this SDK can be found in the gitian-building.md document). Once the SDK has been obtained, the dependency building can be done like this:

make download
mkdir SDKs
tar -C SDKs -xf /path/to/MacOSX10.15.sdk.tar.xz
make build-osx HOST=x86_64-apple-darwin16

Building the node against these dependencies is again a matter of (starting from the project root):

mkdir build_osx
cd build_osx
cmake -GNinja .. -DENABLE_MAN=OFF -DCMAKE_TOOLCHAIN_FILE=../cmake/platforms/OSX.cmake
ninja

No other options are needed, the paths are automatically configured.

Install the required dependencies: Ubuntu & Debian

Common to all arch/OS

sudo apt-get install build-essential autoconf automake cmake curl git libtool ninja-build patch pkg-config python3 bison

For macOS cross compilation

Install the following packages:

sudo apt-get install imagemagick libbz2-dev libcap-dev librsvg2-bin libtiff-tools python3-setuptools

Obtain the same SDK packge that is used in the gitian build (refer to gitian-building.md for download instructions). Create an SDKs folder within the depends folder, if it does not already exist. Unpack the SDK tarball there.

For Win64 cross compilation

see build-windows.md

For Linux cross compilation

Common linux dependencies:

sudo apt-get install gperf

For linux AARCH64 cross compilation:

sudo apt-get install g++-aarch64-linux-gnu

Dependency Options

The following can be set when running make: make FOO=bar

SOURCES_PATH: downloaded sources will be placed here
BASE_CACHE: built packages will be placed here
SDK_PATH: Path where sdk's can be found (used by macOS)
FALLBACK_DOWNLOAD_PATH: If a source file can't be fetched, try here before giving up
NO_QT: Don't download/build/cache qt and its dependencies
NO_ZMQ: Don't download/build/cache packages needed for enabling zeromq
NO_WALLET: Don't download/build/cache libs needed to enable the wallet
NO_UPNP: Don't download/build/cache packages needed for enabling upnp
NO_NATPMP: Don't download/build/cache packages needed for enabling NAT-PMP
NO_JEMALLOC: Don't download/build/cache jemalloc
DEBUG: disable some optimizations and enable more runtime checking
RAPIDCHECK: build rapidcheck (experimental, requires cmake)
HOST_ID_SALT: Optional salt to use when generating host package ids
BUILD_ID_SALT: Optional salt to use when generating build package ids
JOBS: Number of jobs to use for each package build

If some packages are not built, for example by building the depends with make NO_WALLET=1, the appropriate options should be set when building Bitcoin Cash Node using these dependencies. In this example, -DBUILD_BITCOIN_WALLET=OFF should be passed to the cmake command line to ensure that the build will not fail due to missing dependencies.

NOTE: The SDK_PATH should be set to the parent folder in which the MacOSX10.15.sdk/ is located. Alternatively, you can unpack the SDK within the depends/SDKs/ folder or create a symbolic link named MacOSX10.15.sdk/ to it from there.

Additional targets:

download: run 'make download' to fetch all sources without building them
download-osx: run 'make download-osx' to fetch all sources needed for macOS builds
download-win: run 'make download-win' to fetch all sources needed for win builds
download-linux: run 'make download-linux' to fetch all sources needed for linux builds
build-all: build the dependencies for all the arch/OS