litecoin/depends

Usage

To build dependencies for the current arch+OS:

make

To build for another arch/OS:

make HOST=host-platform-triplet

For example:

make HOST=x86_64-w64-mingw32 -j4

Bitcoin Core's configure script by default will ignore the depends output. In order for it to pick up libraries, tools, and settings from the depends build, you must set the CONFIG_SITE environment variable to point to a config.site settings file. In the above example, a file named depends/x86_64-w64-mingw32/share/config.site will be created. To use it during compilation:

CONFIG_SITE=$PWD/depends/x86_64-w64-mingw32/share/config.site ./configure

The default install prefix when using config.site is --prefix=depends/<host-platform-triplet>, so depends build outputs will be installed in that location.

Common host-platform-triplets for cross compilation are:

• i686-pc-linux-gnu for Linux 32 bit
• x86_64-pc-linux-gnu for x86 Linux
• x86_64-w64-mingw32 for Win64
• x86_64-apple-darwin18 for macOS
• arm-linux-gnueabihf for Linux ARM 32 bit
• aarch64-linux-gnu for Linux ARM 64 bit
• powerpc64-linux-gnu for Linux POWER 64-bit (big endian)
• powerpc64le-linux-gnu for Linux POWER 64-bit (little endian)
• riscv32-linux-gnu for Linux RISC-V 32 bit
• riscv64-linux-gnu for Linux RISC-V 64 bit
• s390x-linux-gnu for Linux S390X
• armv7a-linux-android for Android ARM 32 bit
• aarch64-linux-android for Android ARM 64 bit
• i686-linux-android for Android x86 32 bit
• x86_64-linux-android for Android x86 64 bit

The paths are automatically configured and no other options are needed unless targeting Android.

Install the required dependencies: Ubuntu & Debian

For macOS cross compilation

sudo apt-get install curl librsvg2-bin libtiff-tools bsdmainutils cmake imagemagick libz-dev python3-setuptools libtinfo5 xorriso

For Win64 cross compilation

• see build-windows.md

For linux (including i386, ARM) cross compilation

Common linux dependencies:

sudo apt-get install make automake cmake curl g++-multilib libtool binutils-gold bsdmainutils pkg-config python3 patch bison

For linux ARM cross compilation:

sudo apt-get install g++-arm-linux-gnueabihf binutils-arm-linux-gnueabihf

For linux AARCH64 cross compilation:

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

For linux POWER 64-bit cross compilation (there are no packages for 32-bit):

sudo apt-get install g++-powerpc64-linux-gnu binutils-powerpc64-linux-gnu g++-powerpc64le-linux-gnu binutils-powerpc64le-linux-gnu

For linux RISC-V 64-bit cross compilation (there are no packages for 32-bit):

sudo apt-get install g++-riscv64-linux-gnu binutils-riscv64-linux-gnu

RISC-V known issue: gcc-7.3.0 and gcc-7.3.1 result in a broken test_bitcoin executable (see https://github.com/bitcoin/bitcoin/pull/13543), this is apparently fixed in gcc-8.1.0.

For linux S390X cross compilation:

sudo apt-get install g++-s390x-linux-gnu binutils-s390x-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 SDKs 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_QR: Don't download/build/cache packages needed for enabling qrencode
• 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_BDB: Don't download/build/cache BerkeleyDB
• NO_SQLITE: Don't download/build/cache SQLite
• 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
• ALLOW_HOST_PACKAGES: Packages that are missed in dependencies (due to NO_* option or build script logic) are searched for among the host system packages using pkg-config. It allows building with packages of other (newer) versions
• MULTIPROCESS: Build libmultiprocess (experimental, requires CMake)
• DEBUG: Disable some optimizations and enable more runtime checking
• HOST_ID_SALT: Optional salt to use when generating host package ids
• BUILD_ID_SALT: Optional salt to use when generating build package ids
• FORCE_USE_SYSTEM_CLANG: (EXPERTS ONLY) When cross-compiling for macOS, use Clang found in the system's $PATH rather than the default prebuilt release of Clang from llvm.org. Clang 8 or later is required.

If some packages are not built, for example make NO_WALLET=1, the appropriate options will be passed to bitcoin's configure. In this case, --disable-wallet.

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

Android

Before proceeding with an Android build one needs to get the Android SDK and use the "SDK Manager" tool to download the NDK and one or more "Platform packages" (these are Android versions and have a corresponding API level). In order to build ANDROID_API_LEVEL (API level corresponding to the Android version targeted, e.g. Android 9.0 Pie is 28 and its "Platform package" needs to be available) and ANDROID_TOOLCHAIN_BIN (path to toolchain binaries depending on the platform the build is being performed on) need to be set.

API levels from 24 to 29 have been tested to work.

If the build includes Qt, environment variables ANDROID_SDK and ANDROID_NDK need to be set as well but can otherwise be omitted. This is an example command for a default build with no disabled dependencies:

ANDROID_SDK=/home/user/Android/Sdk ANDROID_NDK=/home/user/Android/Sdk/ndk-bundle make HOST=aarch64-linux-android ANDROID_API_LEVEL=28 ANDROID_TOOLCHAIN_BIN=/home/user/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin

Other documentation

• description.md: General description of the depends system
• packages.md: Steps for adding packages