82 lines
3.2 KiB
Markdown
82 lines
3.2 KiB
Markdown
GENERIC BUILD NOTES
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====================
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Some notes on how to build Dash Core based on the [depends](../depends/README.md) build system.
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Note on old build instructions
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------------------------------
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In the past, the build documentation contained instructions on how to build Dash with system-wide installed dependencies
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like BerkeleyDB 4.8, boost and Qt. Building this way is considered deprecated and only building with the `depends` prefix
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is supported today.
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Required build tools and environment
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------------------------------------
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Building the dependencies and Dash Core requires some essential build tools to be installed before. Please see
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[build-unix](build-unix.md), [build-osx](build-osx.md) and [build-windows](build-windows.md) for details.
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Building dependencies
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---------------------
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Dash inherited the `depends` folder from Bitcoin, which contains all dependencies required to build Dash. These
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dependencies must be built before Dash can actually be built. To do so, perform the following:
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```bash
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$ cd depends
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$ make -j4 # Choose a good -j value, depending on the number of CPU cores available
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$ cd ..
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```
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This will download and build all dependencies required to build Dash Core. Caching of build results will ensure that only
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the packages are rebuilt which have changed since the last depends build.
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It is required to re-run the above commands from time to time when dependencies have been updated or added. If this is
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not done, build failures might occur when building Dash.
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Please read the [depends](../depends/README.md) documentation for more details on supported hosts and configuration
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options. If no host is specified (as in the above example) when calling `make`, the depends system will default to your
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local host system.
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Building Dash Core
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---------------------
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```bash
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$ ./autogen.sh
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$ ./configure --prefix `pwd`/depends/<host>
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$ make
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$ make install # optional
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```
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Please replace `<host>` with your local system's `host-platform-triplet`. The following triplets are usually valid:
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- `i686-pc-linux-gnu` for Linux32
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- `x86_64-pc-linux-gnu` for Linux64
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- `i686-w64-mingw32` for Win32
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- `x86_64-w64-mingw32` for Win64
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- `x86_64-apple-darwin11` for MacOSX
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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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If you want to cross-compile for another platform, choose the appropriate `<host>` and make sure to build the
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dependencies with the same host before.
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If you want to build for the same host but different distro, add `--enable-glibc-back-compat` when calling `./configure`.
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ccache
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------
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The depends system also contains [ccache](https://ccache.samba.org/), which caches build results on source->object
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level. `./configure` of Dash Core will autodetect the presence of ccache and enable use of it. To disable ccache, use
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`./configure --prefix=<prefix> --disable-ccache`.
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The default maximum cache size is 5G, which might not be enough to cache multiple builds when switching Git branches
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very often. It is advised to increase the maximum cache size:
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```bash
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$ ./depends/<host>/native/bin/ccache -M20G
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```
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Additional Configure Flags
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--------------------------
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A list of additional configure flags can be displayed with:
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```bash
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./configure --help
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```
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