1 Bitcoin-Qt: Qt4 GUI for Bitcoin
2 ===============================
10 First, make sure that the required packages for Qt4 development of your
11 distribution are installed, these are
15 for Debian and Ubuntu <= 11.10 :
19 apt-get install qt4-qmake libqt4-dev build-essential libboost-dev libboost-system-dev \
20 libboost-filesystem-dev libboost-program-options-dev libboost-thread-dev \
21 libssl-dev libdb4.8++-dev
23 for Ubuntu >= 12.04 (please read the 'Berkely DB version warning' below):
27 apt-get install qt4-qmake libqt4-dev build-essential libboost-dev libboost-system-dev \
28 libboost-filesystem-dev libboost-program-options-dev libboost-thread-dev \
29 libssl-dev libdb++-dev libminiupnpc-dev
31 then execute the following:
38 Alternatively, install `Qt Creator`_ and open the `bitcoin-qt.pro` file.
40 An executable named `bitcoin-qt` will be built.
42 .. _`Qt Creator`: http://qt-project.org/downloads/
47 Windows build instructions:
49 - Download the `Qt Windows SDK`_ and install it. You don't need the Symbian stuff, just the desktop Qt.
51 - Download and extract the `dependencies archive`_ [#]_, or compile openssl, boost and dbcxx yourself.
53 - Copy the contents of the folder "deps" to "X:\\QtSDK\\mingw", replace X:\\ with the location where you installed the Qt SDK. Make sure that the contents of "deps\\include" end up in the current "include" directory.
55 - Open the bitcoin-qt.pro file in Qt Creator and build as normal (ctrl-B)
57 .. _`Qt Windows SDK`: http://qt-project.org/downloads/
58 .. _`dependencies archive`: https://download.visucore.com/bitcoin/qtgui_deps_1.zip
59 .. [#] PGP signature: https://download.visucore.com/bitcoin/qtgui_deps_1.zip.sig (signed with RSA key ID `610945D0`_)
60 .. _`610945D0`: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x610945D0
66 - Download and install the `Qt Mac OS X SDK`_. It is recommended to also install Apple's Xcode with UNIX tools.
68 - Download and install `MacPorts`_.
70 - Execute the following commands in a terminal to get the dependencies:
75 sudo port install boost db48 miniupnpc
77 - Open the bitcoin-qt.pro file in Qt Creator and build as normal (cmd-B)
79 .. _`Qt Mac OS X SDK`: http://qt-project.org/downloads/
80 .. _`MacPorts`: http://www.macports.org/install.php
83 Build configuration options
84 ============================
89 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:
95 (in **Qt Creator**, you can find the setting for additional qmake arguments under "Projects" -> "Build Settings" -> "Build Steps", then click "Details" next to **qmake**)
97 This requires miniupnpc for UPnP port mapping. It can be downloaded from
98 http://miniupnp.tuxfamily.org/files/. UPnP support is not compiled in by default.
100 Set USE_UPNP to a different value to control this:
102 +------------+--------------------------------------------------------------------------+
103 | USE_UPNP=- | no UPnP support, miniupnpc not required; |
104 +------------+--------------------------------------------------------------------------+
105 | USE_UPNP=0 | (the default) built with UPnP, support turned off by default at runtime; |
106 +------------+--------------------------------------------------------------------------+
107 | USE_UPNP=1 | build with UPnP support turned on by default at runtime. |
108 +------------+--------------------------------------------------------------------------+
110 Notification support for recent (k)ubuntu versions
111 ---------------------------------------------------
113 To see desktop notifications on (k)ubuntu versions starting from 10.04, enable usage of the
114 FreeDesktop notification interface through DBUS using the following qmake option:
120 Generation of QR codes
121 -----------------------
123 libqrencode may be used to generate QRCode images for payment requests.
124 It can be downloaded from http://fukuchi.org/works/qrencode/index.html.en, or installed via your package manager. Pass the USE_QRCODE
125 flag to qmake to control this:
127 +--------------+--------------------------------------------------------------------------+
128 | USE_QRCODE=0 | (the default) No QRCode support - libarcode not required |
129 +--------------+--------------------------------------------------------------------------+
130 | USE_QRCODE=1 | QRCode support enabled |
131 +--------------+--------------------------------------------------------------------------+
134 Berkely DB version warning
135 ==========================
137 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**).
139 The static binary version of Bitcoin is linked against libdb4.8 (see also `this Debian issue`_).
141 Now the nasty thing is that databases from 5.X are not compatible with 4.X.
143 If the globally installed development package of Berkely DB installed on your system is 5.X, any source you
144 build yourself will be linked against that. The first time you run with a 5.X version the database will be upgraded,
145 and 4.X cannot open the new format. This means that you cannot go back to the old statically linked version without
148 .. _`this Debian issue`: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=621425
153 Ubuntu 11.10 has a package called 'qt-at-spi' installed by default. At the time of writing, having that package
154 installed causes bitcoin-qt to crash intermittently. The issue has been reported as `launchpad bug 857790`_, but
157 Until the bug is fixed, you can remove the qt-at-spi package to work around the problem, though this will presumably
158 disable screen reader functionality for Qt apps:
162 sudo apt-get remove qt-at-spi
164 .. _`launchpad bug 857790`: https://bugs.launchpad.net/ubuntu/+source/qt-at-spi/+bug/857790