129 lines
5.0 KiB
Markdown
129 lines
5.0 KiB
Markdown
Bitcoin-Qt Readme
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===============================
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Contains build and configuration instructions for Bitcoin-Qt (Qt4 GUI for Bitcoin).
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Build Instructions
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---------------------
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### Debian
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First, make sure that the required packages for Qt4 development of your
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distribution are installed, these are
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for Debian and Ubuntu <= 11.10 :
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apt-get install qt4-qmake libqt4-dev build-essential libboost-dev libboost-system-dev \
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libboost-filesystem-dev libboost-program-options-dev libboost-thread-dev \
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libssl-dev libdb4.8++-dev
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for Ubuntu >= 12.04 (please read the 'Berkely DB version warning' below):
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apt-get install qt4-qmake libqt4-dev build-essential libboost-dev libboost-system-dev \
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libboost-filesystem-dev libboost-program-options-dev libboost-thread-dev \
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libssl-dev libdb++-dev libminiupnpc-dev
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For Qt 5 you need the following, otherwise you get an error with lrelease when running qmake:
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apt-get install qt5-qmake libqt5gui5 libqt5core5 libqt5dbus5 qttools5-dev-tools
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then execute the following:
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qmake
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make
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Alternatively, install [Qt Creator](http://qt-project.org/downloads/) and open the `bitcoin-qt.pro` file.
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An executable named `bitcoin-qt` will be built.
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### Mac OS X
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* Download and install the [Qt Mac OS X SDK](https://qt-project.org/downloads). It is recommended to also install Apple's Xcode with UNIX tools.
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* Download and install either [MacPorts](https://www.macports.org/) or [HomeBrew](http://mxcl.github.io/homebrew/).
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* Execute the following commands in a terminal to get the dependencies using MacPorts
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sudo port selfupdate
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sudo port install boost db48 miniupnpc
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* Execute the following commands in a terminal to get the dependencies using HomeBrew:
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brew update
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brew install boost miniupnpc openssl berkeley-db4
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- If using HomeBrew, edit `bitcoin-qt.pro` to account for library location differences. There's a diff in `contrib/homebrew/bitcoin-qt-pro.patch` that shows what you need to change, or you can just patch by doing
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patch -p1 < contrib/homebrew/bitcoin.qt.pro.patch
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- Open the bitcoin-qt.pro file in Qt Creator and build as normal (cmd+B)
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Build Configuration Options
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---------------------
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### UPnP port forwarding
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To use UPnP for port forwarding behind a NAT router (recommended, as more connections overall allow for a faster and more stable bitcoin experience), pass the following argument to qmake:
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qmake "USE_UPNP=1"
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(in **Qt Creator**, you can find the setting for additional qmake arguments under "Projects" -> "Build Settings" -> "Build Steps", then click "Details" next to **qmake**)
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This requires miniupnpc for UPnP port mapping. It can be downloaded from [here](
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http://miniupnp.tuxfamily.org/files/). UPnP support is not compiled in by default.
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Set USE_UPNP to a different value to control this:
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USE_UPNP=- no UPnP support, miniupnpc not required;
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USE_UPNP=0 (the default) built with UPnP, support turned off by default at runtime;
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USE_UPNP=1 build with UPnP support turned on by default at runtime.
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### Notification support for recent (k)ubuntu versions
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To see desktop notifications on (k)ubuntu versions starting from 10.04, enable usage of the
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FreeDesktop notification interface through DBUS using the following qmake option:
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qmake "USE_DBUS=1"
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### Generation of QR codes
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[libqrencode](http://fukuchi.org/works/qrencode/) may be used to generate QRCode images for payment requests. Pass the USE_QRCODE flag to qmake to control this:
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USE_QRCODE=0 (the default) No QRCode support - libarcode not required
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USE_QRCODE=1 QRCode support enabled
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Warnings
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---------------------
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### Berkely DB Version Warning
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A warning for people using the *static binary* version of Bitcoin on a Linux/UNIX-ish system (tl;dr: **Berkely DB databases are not forward compatible**).
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The static binary version of Bitcoin is linked against libdb4.8 (see also [this Debian issue](http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=621425)).
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Now the nasty thing is that databases from 5.X are not compatible with 4.X.
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If the globally installed development package of Berkely DB installed on your system is 5.X, any source you build yourself will be linked against that. The first time you run with a 5.X version the database will be upgraded, and 4.X cannot open the new format. This means that you cannot go back to the old statically linked version without significant hassle!
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### Ubuntu 11.10 Warning
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Ubuntu 11.10 has a package called 'qt-at-spi' installed by default. At the time of writing, having that package installed causes bitcoin-qt to crash intermittently. The issue has been reported as [launchpad bug 857790](https://bugs.launchpad.net/ubuntu/+source/qt-at-spi/+bug/857790), but
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isn't yet fixed.
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Until the bug is fixed, you can remove the qt-at-spi package to work around the problem, though this will presumably disable screen reader functionality for Qt apps:
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sudo apt-get remove qt-at-spi
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