dash/doc/build-generic.md

GENERIC BUILD NOTES

Some notes on how to build Dash Core based on the depends build system.

Note on old build instructions

In the past, the build documentation contained instructions on how to build Dash with system-wide installed dependencies like BerkeleyDB 4.8, boost and Qt. Building this way is considered deprecated and only building with the depends prefix is supported today.

Required build tools and environment

Building the dependencies and Dash Core requires some essential build tools to be installed before. Please see build-unix, build-osx and build-windows for details.

Building dependencies

Dash inherited the depends folder from Bitcoin, which contains all dependencies required to build Dash. These dependencies must be built before Dash can actually be built. To do so, perform the following:

$ cd depends
$ make -j4 # Choose a good -j value, depending on the number of CPU cores available
$ cd ..

This will download and build all dependencies required to build Dash Core. Caching of build results will ensure that only the packages are rebuilt which have changed since the last depends build.

It is required to re-run the above commands from time to time when dependencies have been updated or added. If this is not done, build failures might occur when building Dash.

Please read the depends documentation for more details on supported hosts and configuration options. If no host is specified (as in the above example) when calling make, the depends system will default to your local host system.

Building Dash Core

$ ./autogen.sh
$ ./configure --prefix `pwd`/depends/<host>
$ make
$ make install # optional

Please replace <host> with your local system's host-platform-triplet. The following triplets are usually valid:

• i686-pc-linux-gnu for Linux32
• x86_64-pc-linux-gnu for Linux64
• i686-w64-mingw32 for Win32
• x86_64-w64-mingw32 for Win64
• x86_64-apple-darwin11 for MacOSX
• arm-linux-gnueabihf for Linux ARM 32 bit
• aarch64-linux-gnu for Linux ARM 64 bit

If you want to cross-compile for another platform, choose the appropriate <host> and make sure to build the dependencies with the same host before.

ccache

The depends system also contains ccache, which caches build results on source->object level. ./configure of Dash Core will autodetect the presence of ccache and enable use of it. To disable ccache, use ./configure --prefix=<prefix> --disable-ccache.

The default maximum cache size is 5G, which might not be enough to cache multiple builds when switching Git branches very often. It is advised to increase the maximum cache size:

$ ./depends/<host>/bin/ccache -M20G

Additional Configure Flags

A list of additional configure flags can be displayed with:

./configure --help