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### 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 Bitcoin'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 Bitcoin:
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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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- `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
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No other options are needed, the paths are automatically configured.
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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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SOURCES_PATH: downloaded sources will be placed here
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BASE_CACHE: built packages will be placed here
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SDK_PATH: Path where sdk's can be found (used by OSX)
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FALLBACK_DOWNLOAD_PATH: If a source file can't be fetched, try here before giving up
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NO_QT: Don't download/build/cache qt and its dependencies
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NO_WALLET: Don't download/build/cache libs needed to enable the wallet
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NO_UPNP: Don't download/build/cache packages needed for enabling upnp
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DEBUG: disable some optimizations and enable more runtime checking
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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 bitcoin'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 osx 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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