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5e7d1997fce15b3e2fb77e67491237812e1f98d9 doc: note on SDK for macOS depends cross-compile (Jarol Rodriguez)
Pull request description:
This PR adds a friendly note for those who are unfamiliar with our depends build system that an extracted SDK is needed before proceeding with a macOS cross-compile. Additionally, it refers a builder to look at [macdeploy](https://github.com/bitcoin/bitcoin/tree/master/contrib/macdeploy#sdk-extraction) for instructions on obtaining the SDK and provides context to where this SDK should reside.
**Master:** [render](https://github.com/bitcoin/bitcoin/blob/master/depends/README.md#for-macos-cross-compilation)
**PR:** [render](241c4017ed/depends/README.md (for-macos-cross-compilation))
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112 lines
4.0 KiB
Markdown
112 lines
4.0 KiB
Markdown
### Usage
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To build dependencies for the current arch+OS:
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make
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To build for another arch/OS:
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make HOST=host-platform-triplet
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For example:
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make HOST=x86_64-w64-mingw32 -j4
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A prefix will be generated that's suitable for plugging into Dash's
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configure. In the above example, a dir named x86_64-w64-mingw32 will be
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created. To use it for Dash:
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./configure --prefix=`pwd`/depends/x86_64-w64-mingw32
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Common `host-platform-triplets` for cross compilation are:
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- `x86_64-w64-mingw32` for Win64
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- `x86_64-apple-darwin19` for macOS
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- `arm-linux-gnueabihf` for Linux ARM 32 bit
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- `aarch64-linux-gnu` for Linux ARM 64 bit
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- `riscv32-linux-gnu` for Linux RISC-V 32 bit
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- `riscv64-linux-gnu` for Linux RISC-V 64 bit
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No other options are needed, the paths are automatically configured.
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### Install the required dependencies: Ubuntu & Debian
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#### For macOS cross compilation
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sudo apt-get install curl librsvg2-bin libtiff-tools bsdmainutils imagemagick libcap-dev libz-dev libbz2-dev python3-setuptools libtinfo5
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Note: You must obtain the macOS SDK before proceeding with a cross-compile.
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Under the depends directory, create a subdirectory named `SDKs`.
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Then, place the extracted SDK under this new directory.
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For more information, see [SDK Extraction](../contrib/macdeploy/README.md#sdk-extraction).
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#### For Win64 cross compilation
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- see [build-windows.md](../doc/build-windows.md#cross-compilation-for-ubuntu-and-windows-subsystem-for-linux)
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#### For linux (including i386, ARM) cross compilation
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Common linux dependencies:
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sudo apt-get install make automake cmake curl g++-multilib libtool binutils-gold bsdmainutils pkg-config python3 patch
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For linux ARM cross compilation:
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sudo apt-get install g++-arm-linux-gnueabihf binutils-arm-linux-gnueabihf
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For linux AARCH64 cross compilation:
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sudo apt-get install g++-aarch64-linux-gnu binutils-aarch64-linux-gnu
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For linux RISC-V 64-bit cross compilation (there are no packages for 32-bit):
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sudo apt-get install g++-riscv64-linux-gnu binutils-riscv64-linux-gnu
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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),
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this is apparently fixed in gcc-8.1.0.
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### Dependency Options
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The following can be set when running make: `make FOO=bar`
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<dl>
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<dt>SOURCES_PATH</dt>
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<dd>downloaded sources will be placed here</dd>
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<dt>BASE_CACHE</dt>
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<dd>built packages will be placed here</dd>
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<dt>SDK_PATH</dt>
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<dd>Path where sdk's can be found (used by macOS)</dd>
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<dt>FALLBACK_DOWNLOAD_PATH</dt>
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<dd>If a source file can't be fetched, try here before giving up</dd>
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<dt>NO_QT</dt>
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<dd>Don't download/build/cache qt and its dependencies</dd>
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<dt>NO_WALLET</dt>
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<dd>Don't download/build/cache libs needed to enable the wallet</dd>
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<dt>NO_UPNP</dt>
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<dd>Don't download/build/cache packages needed for enabling upnp</dd>
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<dt>DEBUG</dt>
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<dd>disable some optimizations and enable more runtime checking</dd>
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<dt>HOST_ID_SALT</dt>
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<dd>Optional salt to use when generating host package ids</dd>
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<dt>BUILD_ID_SALT</dt>
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<dd>Optional salt to use when generating build package ids</dd>
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<dt>FORCE_USE_SYSTEM_CLANG</dt>
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<dd>(EXPERTS ONLY) When cross-compiling for macOS, use Clang found in the
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system's <code>$PATH</code> rather than the default prebuilt release of Clang
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from llvm.org. Clang 8 or later is required.</dd>
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</dl>
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If some packages are not built, for example `make NO_WALLET=1`, the appropriate
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options will be passed to Dash Core's configure. In this case, `--disable-wallet`.
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### Additional targets
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download: run 'make download' to fetch all sources without building them
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download-osx: run 'make download-osx' to fetch all sources needed for macOS builds
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download-win: run 'make download-win' to fetch all sources needed for win builds
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download-linux: run 'make download-linux' to fetch all sources needed for linux builds
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### Other documentation
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- [description.md](description.md): General description of the depends system
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- [packages.md](packages.md): Steps for adding packages
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