### 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 A prefix will be generated that's suitable for plugging into Dash's configure. In the above example, a dir named x86_64-w64-mingw32 will be created. To use it for Dash: ./configure --prefix=`pwd`/depends/x86_64-w64-mingw32 Common `host-platform-triplets` for cross compilation are: - `x86_64-w64-mingw32` for Win64 - `x86_64-apple-darwin19` for macOS - `arm-linux-gnueabihf` for Linux ARM 32 bit - `aarch64-linux-gnu` for Linux ARM 64 bit - `riscv32-linux-gnu` for Linux RISC-V 32 bit - `riscv64-linux-gnu` for Linux RISC-V 64 bit - `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](#Android). ### Install the required dependencies: Ubuntu & Debian #### For macOS cross compilation sudo apt-get install curl librsvg2-bin libtiff-tools bsdmainutils imagemagick libcap-dev libz-dev libbz2-dev python3-setuptools libtinfo5 Note: You must obtain the macOS SDK before proceeding with a cross-compile. Under the depends directory, create a subdirectory named `SDKs`. Then, place the extracted SDK under this new directory. For more information, see [SDK Extraction](../contrib/macdeploy/README.md#sdk-extraction). #### For Win64 cross compilation - see [build-windows.md](../doc/build-windows.md#cross-compilation-for-ubuntu-and-windows-subsystem-for-linux) #### 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 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 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_dash` executable (see https://github.com/bitcoin/bitcoin/pull/13543), this is apparently fixed in gcc-8.1.0. ### Dependency Options The following can be set when running make: `make FOO=bar`
$PATH
rather than the default prebuilt release of Clang
from llvm.org. Clang 8 or later is required.