[[PageOutline]] = Building the Qt port on Linux = These instructions apply to Linux in general with source packages. == Dependencies == The code should be easily built on any Linux distribution which has development packages for Qt installed. The Qt port requires '''Qt version 4.4 or later.''' The Qt port requires gperf. The Qt port requires sqllite. The Qt port requires bison. The Qt port requires '''flex version 2.5.33 or later.''' The Qt port requries xrender-dev == Build WebKit == You'll need to [http://webkit.org/building/checkout.html check out the source code from Subversion]. The Qt port is part of the WebKit source tree, so you don't need anything extra. Finally, set the QTDIR environment variable to Qt 4.x's installation path and make sure Qt 4.x's qmake is the first qmake in your PATH (typically by running `export PATH=$QTDIR/bin:$PATH`). If your qmake binary has a different name, e.g. when using Debian, use the --qmake= option to specify the name. Build WebKit and the Qt test browser with {{{ WebKit/WebKitTools/Scripts/build-webkit --qt }}} `build-webkit` (see above) also supports special variable for specifying the OBJDIR directory, as well as some configure and build arguments {{{ WEBKITOUTPUTDIR=`pwd`/qtbuild WebKit/WebKitTools/Scripts/build-webkit --qt --makeargs="-j20 -s" --no-video --debug }}} == Testing the port == A very simple test browser is built along with the port and can be executed with {{{ WebKit/WebKitTools/Scripts/run-launcher --qt }}} == Common Build Errors == === Using Qt 4.2 === {{{ ../../../WebKitQt/Api/qwebnetworkinterface_p.h:134: error: ‘QSslError’ was not declared in this scope ../../../WebKitQt/Api/qwebnetworkinterface_p.h:134: error: template argument 1 is invalid ../../../WebKitQt/Api/qwebnetworkinterface_p.h:135: error: ‘QAuthenticator’ has not been declared ../../../WebKitQt/Api/qwebnetworkinterface_p.h:136: error: expected ‘,’ or ‘...’ before ‘&’ token ../../../WebKitQt/Api/qwebnetworkinterface_p.h:136: error: ISO C++ forbids declaration of ‘QNetworkProxy’ with no type make[1]: *** [tmp/ResourceHandleQt.o] Error 1 }}} This error is caused by not having the minimum version of Qt installed. Install the minimum version of Qt, set the 'QTDIR' environment variable pointing to this version and try building WebKit again. === Missing gperf === {{{ ../../../WebCore/html/HTMLDocument.cpp: In member function 'virtual void WebCore::HTMLDocument::determineParseMode(const WebCore::String&)': ../../../WebCore/html/HTMLDocument.cpp:389: error: expected initializer before '*' token ../../../WebCore/html/HTMLDocument.cpp:390: error: 'doctypeEntry' was not declared in this scope ../../../WebCore/html/HTMLDocument.cpp:398: error: 'doctypeEntry' was not declared in this scope ../../../WebCore/html/HTMLDocument.cpp:401: error: 'PubIDInfo' has not been declared ../../../WebCore/html/HTMLDocument.cpp:405: error: 'PubIDInfo' has not been declared }}} This error is typically caused by not having `gperf` installed. Install `gperf`, run `touch WebCore/html/DocTypeStrings.gperf` and try building WebKit again. === Missing SQLite development package === {{{ ../../../WebCore/loader/icon/SQLDatabase.cpp:30:21: error: sqlite3.h: No such file or directory ../../../WebCore/loader/icon/SQLDatabase.cpp:36: error: "SQLITE_ERROR" was not declared in this scope ../../../WebCore/loader/icon/SQLDatabase.cpp:37: error: "SQLITE_DONE" was not declared in this scope ../../../WebCore/loader/icon/SQLDatabase.cpp:38: error: "SQLITE_OK" was not declared in this scope ../../../WebCore/loader/icon/SQLDatabase.cpp:39: error: "SQLITE_ROW" was not declared in this scope }}} This error is typically caused by not having the development component of `libsqlite3` installed. Install the development package and try building WebKit again. === Missing flex === {{{ .../WebKitBuild/Release/lib/libWebKitQt.so: undefined reference to `WebCore::CSSParser::lex()' }}} This error is typically caused by not having `flex` installed. Install `flex`, run `touch WebCore/css/tokenizer.flex` and try building WebKit again. === Incompatible version of bison === {{{ bison -d -p kjsyy JavaScriptCore/kjs/grammar.y -o grammar.tab.c && mv grammar.tab.c tmp/grammar.cpp && mv grammar.tab.h tmp/grammar.h JavaScriptCore/kjs/grammar.y:364.3-366.9: type clash (`node' `') on default action JavaScriptCore/kjs/grammar.y:366.10: parse error, unexpected ":", expecting ";" or "|" }}} This error is caused by having an incompatible version of `bison` installed. The single reported case of this error occurred with `bison` 1.75, and was resolved by updating to `bison` 2.3. === Missing Phonon === {{{ In file included from ../../../WebCore/platform/graphics/MediaPlayer.cpp:46: ../../../WebCore/platform/graphics/qt/MediaPlayerPrivatePhonon.h:27:29: error: phononnamespace.h: No such file or directory In file included from ../../../WebCore/platform/graphics/MediaPlayer.cpp:46: ../../../WebCore/platform/graphics/qt/MediaPlayerPrivatePhonon.h:120: error: ‘Phonon::State’ has not been declared ../../../WebCore/platform/graphics/qt/MediaPlayerPrivatePhonon.h:120: error: ‘Phonon::State’ has not been declared }}} This error is caused by not having Phonon installed. Install the development version to resolve. == Dependencies for specific Linux distributions == === Installing dependencies on Ubuntu === To install required dependencies on Ubuntu, do {{{ sudo aptitude install libqt4-dev gperf bison flex libicu36-dev libphonon-dev libsqlite3-dev }}} === Installing dependencies on Ark Linux === On Ark Linux, install the required dependencies using {{{ apt-get install devel-core qt4-devel qmake gperf bison sqlite-devel }}} Alternatively, install the needed packages (see list above) through Mission Control -> Install Software. === Installing dependencies on OpenSUSE Linux === This was tested on openSUSE 11.1 {{{ sudo zypper in libqt4-devel gperf bison libicu-devel sqlite-devel }}}