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Forum Update on Monday, May 27th 2025

Qt5 development primer

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    sierdzio
    Moderators
    wrote on 21 Feb 2012, 11:35 last edited by
    #57

    git clone git://gitorious.org/qt/qt5.git qt5

    "Building Qt5 from Git.":http://developer.qt.nokia.com/wiki/Building_Qt_5_from_Git

    (Z(:^

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      kkoehne
      Moderators
      wrote on 23 Feb 2012, 11:28 last edited by
      #58

      @oneWonders: I just updated the package dependencies on the wiki, hope all are listed now (it's not that often that one has a clean system to start on ;)

      @werispaul: Yes, you need ActiveState perl, and actually also a recent version. But the wiki page already points that out...

      @ddriver: No idea. All I can tell you is that most people developing Qt on Windows are using MSVC compilers (MSVC2008, MSVC2010).

      Director R&D, The Qt Company

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        Guest
        wrote on 23 Feb 2012, 22:48 last edited by
        #59

        Yes, it seems I will have to give it another go using MSVC2010, I am really itching to play a bit with QtQuick 2 :)

        EDIT: ARGHHHHHHHHHHH ^%$^@#$@
        Naturally, after wasting a ton of time the webkit failed, and just to make things even more irritating, when I configure with -no-webkit it says "Unknown option -no-webkit" even thou -no-webkit is listed in the configure options... WTH?

        Also "nmake confclean" doesn't work, returns "NMAKE : fatal error U1073: don't know how to make 'confclean'"

        Also, I tried installing ICU so I can build webkit since the configure utility option doesn't work, and the install procedure for ICU involves files that are not even present in the package.

        I am so very, very angry I hardly contain from beating my hardware, even thou this is all the lousy software's fault...

        I get it that it is free software, prior to final stage, but can it really be that bad? I have build Qt from sources donzes of times and different versions, and it was always effortless.

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          pierrevr
          wrote on 24 Feb 2012, 14:37 last edited by
          #60

          I will add my failure to this thread.

          I managed to compile Qt without too many problems by specifying the -prefix ${ROOT}/qtbase (or -developer-build, to be exact). If I remember correctly, with the -developer-build, I still had some installation issues once qtbase passed. I ended up having to manually run install for each submodule...

          However, when trying to build for the target platform, with -prefix /usr/lib/qt, as I want it on the target, I run into an error once qtbase is built:

          @
          cd qtsvg/ && make -f Makefile
          make[1]: Entering directory /home/pvr/qt5-build-neon/qtsvg' cd src/ && /home/pvr/qt5-build-neon/qtbase/bin/qmake /home/pvr/qt5/qtsvg/src/src.pro QMAKE_ABSOLUTE_SOURCE_PATH=/home/pvr/qt5/qtbase -o Makefile QMAKESPEC has not been set, so configuration cannot be deduced. Error processing project file: /home/pvr/qt5/qtsvg/src/src.pro make[1]: *** [src/Makefile] Error 3 make[1]: Leaving directory /home/pvr/qt5-build-neon/qtsvg'
          make: *** [module-qtsvg-make_default] Error 2
          @

          So I tried exporting QMAKESPEC as the path to my mkspec, but then I get the following error:

          @
          cd svg/ && /home/pvr/qt5-build-neon/qtbase/bin/qmake /home/pvr/qt5/qtsvg/src/svg/svg.pro
          QMAKE_ABSOLUTE_SOURCE_PATH=/home/pvr/qt5/qtbase -o Makefile
          Project ERROR: Cannot load qmodule.pri!
          make[2]: *** [svg/Makefile] Error 2
          make[2]: Leaving directory /home/pvr/qt5-build-neon/qtsvg/src' make[1]: *** [module-qtsvg-src-make_default] Error 2 make[1]: Leaving directory /home/pvr/qt5-build-neon/qtsvg'
          make: *** [module-qtsvg-make_default] Error 2
          @

          So my question is essentially, is it obligatory to specify the prefix as the path to qtbase? Has anyone else managed to build qt with a different prefix?

          edit:
          I should add that I am cross-compiling from x86 to an ARM board (iMX515). I built Qt4.8 with no problems previously...

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            Loaden
            wrote on 1 Mar 2012, 03:03 last edited by
            #61
            1. I can't build with different prefix too, MSVC2010SP1.
            2. I can't build QWebkit, I don't know where is the ICU library place?
              Any docs about ICU library installed in Windows?
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            • K Offline
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              kkoehne
              Moderators
              wrote on 1 Mar 2012, 07:56 last edited by
              #62

              @Yuchen: I don't know about ICU on Windows, but I do know that you can just build Qt without webkit by deleting / renaming qtwebkit, qtwebkit-examples-and-demos directories, and then re-running configure. Maybe you don't need it after all?

              Director R&D, The Qt Company

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                Loaden
                wrote on 1 Mar 2012, 08:45 last edited by
                #63

                @kkoehne : Thanks for reply!
                I need to build QWebKit, Because I want build QtCreator use Qt5.
                But after try and try, and the final, I don't have any idea how to add ICU library for QWebKit.
                And I find a way to build Qt5 when use another prefix.

                Step1:
                set PATH=

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                  Loaden
                  wrote on 1 Mar 2012, 08:46 last edited by
                  #64

                  Step1:
                  set PATH=

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                  • L Offline
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                    Loaden
                    wrote on 1 Mar 2012, 08:48 last edited by
                    #65

                    @kkoehne : Thanks for reply!
                    I need to build QWebKit, Because I want build QtCreator use Qt5.
                    But after try and try, and the final, I don't have any idea how to add ICU library for QWebKit.
                    And I find a way to build Qt5 when use another prefix.

                    Step1:
                    set PATH...
                    set QTDIR...
                    Same the wiki.

                    Step2:
                    configure -confirm-license -opensource -prefix D:\qpSOFT\DEVx86\qt5 -release -platform win32-msvc2010 -fast -no-stl -nomake examples -nomake tests
                    (QtSrcDir = D:\qpSOFT\Sources\Qt5)

                    Step3:
                    nmake module-qtbase && nmake module-qtbase-install_subtargets

                    Step4:
                    nmake && nmake install

                    The meaning is we should install qtbase to prefix first.
                    Then we can build other module.

                    Any tips or hits about How To Build QWebkit on Windows?
                    Thanks!!

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                      pierrevr
                      wrote on 1 Mar 2012, 10:29 last edited by
                      #66

                      @Yuchen: Thanks for the tip on installing qtbase first. It works, but I don't understand why this is necessary. I am cross-compiling for a target system that has a completely different hierarchy, I don't consider it normal to have to install on the build system in this case. I ended up using a symlink on my dev system to, pointing to somewhere acceptable, installed with INSTALL_ROOT=/<path>, but I think this is a bug.

                      As for the Windows question, I wouldn't know sorry, I develop on Linux.

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                        hmuelner
                        wrote on 7 Mar 2012, 12:08 last edited by
                        #67

                        Re: building QWebkit on Windows:
                        The reason for the build failure are the following lines in qtwebkit/Source/WTF/WTF.pri:
                        @ contains(QT_CONFIG,icu) {
                        LIBS += -licui18n -licuuc -licudata
                        } else {
                        error("To build QtWebKit with Qt 5 you need ICU")
                        }
                        @

                        I could not find a way to include icu in QT_CONFIG, but a brute force approach (for testing purposes) would be to remove the contains query and include the 3 icu libraries unconditionally.

                        Helmut Mülner

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                          pierrevr
                          wrote on 7 Mar 2012, 12:50 last edited by
                          #68

                          hmuelner: That is a different problem, I believe. As stated in "Building_Qt_5_from_Git":http://developer.qt.nokia.com/wiki/Building_Qt_5_from_Git :

                          WebKit doesn’t compile, missing ICU

                          Currently there is no configure time check for ICU, so install it through the package manager through
                          on Ubuntu/Debian:

                          sudo apt-get install libicu-dev
                          

                          on Fedora:

                          yum search ICU
                          

                          Alternatively you can also compile Qt without webkit by deleting / renaming the qtwebkit, qtwebkit-examples-and-demos directories. The -no-webkit option of configure does not work yet : https://bugreports.qt-project.org/browse/QTBUG-20577

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                            hmuelner
                            wrote on 7 Mar 2012, 12:53 last edited by
                            #69

                            @pierrevr: I am talking about building Webkit on Windows - no package manager there.

                            Helmut Mülner

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                              Kondr
                              wrote on 7 Mar 2012, 15:21 last edited by
                              #70

                              Hello, I have tried to compile Qt5 under archlinux and under mac os, but in both cases I have got the same errors:

                              bq.
                              cd qtsvg/ && make -f Makefile
                              cd qtphonon/ && make -f Makefile
                              cd qtxmlpatterns/ && make -f Makefile
                              make[1]: Entering directory /home/kondr/Documents/qt5/qtxmlpatterns' /home/kondr/Documents/qt5/qtbase/bin/qmake QMAKE_ABSOLUTE_SOURCE_PATH=/home/kondr/Documents/qt5/qtbase -o Makefile qtxmlpatterns.pro Could not find mkspecs for your QMAKESPEC&#40;default&#41; after trying: /home/kondr/Documents/qt5/qtxmlpatterns/mkspecs /home/kondr/Documents/qt5/qt5/mkspecs make&#91;1&#93;: *** [Makefile] Error 3 make&#91;1&#93;: Leaving directory /home/kondr/Documents/qt5/qtxmlpatterns'
                              make: *** [module-qtxmlpatterns-make_default] Error 2
                              make: *** Waiting for unfinished jobs....
                              make[1]: Entering directory /home/kondr/Documents/qt5/qtsvg' /home/kondr/Documents/qt5/qtbase/bin/qmake QMAKE_ABSOLUTE_SOURCE_PATH=/home/kondr/Documents/qt5/qtbase -o Makefile qtsvg.pro Could not find mkspecs for your QMAKESPEC&#40;default&#41; after trying: /home/kondr/Documents/qt5/qtsvg/mkspecs /home/kondr/Documents/qt5/qt5/mkspecs make&#91;1&#93;: *** [Makefile] Error 3 make&#91;1&#93;: Leaving directory /home/kondr/Documents/qt5/qtsvg'
                              make: *** [module-qtsvg-make_default] Error 2
                              make[1]: Entering directory /home/kondr/Documents/qt5/qtphonon' /home/kondr/Documents/qt5/qtbase/bin/qmake QMAKE_ABSOLUTE_SOURCE_PATH=/home/kondr/Documents/qt5/qtbase -o Makefile qtphonon.pro Could not find mkspecs for your QMAKESPEC&#40;default&#41; after trying: /home/kondr/Documents/qt5/qtphonon/mkspecs /home/kondr/Documents/qt5/qt5/mkspecs make&#91;1&#93;: *** [Makefile] Error 3 make&#91;1&#93;: Leaving directory /home/kondr/Documents/qt5/qtphonon'
                              make: *** [module-qtphonon-make_default] Error 2

                              I have used the next command:

                              bq. git clone git://gitorious.org/qt/qt5.git qt5 && cd qt5 && perl init-repository && export PATH="$PWD/qtbase/bin:$PATH" && ./configure -prefix $PWD/qt5 -opensource -confirm-license -nomake tests -nomake examples && make -j3

                              In addition I would like to know how to compile Qt 5 for a special arch? (for example, how to compile Qt 5 for i386 arch on x86_64 OS?)

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                                hmuelner
                                wrote on 8 Mar 2012, 13:05 last edited by
                                #71

                                I made some progress (but did not succeed) with compiling the current git version of qtwebkit with vs2010 in windows7(64):

                                My Qt directory is in d:\Qt\qt5.

                                • I created an additional system cpp directory in d:\cpp with an include and a lib subdirectory

                                • I add two variables to my system environment: INCLUDE=d:\cpp\include and LIB=d:\cpp\lib and started a new Visual Studio Command Prompt.

                                • I copied qedit.h from the Windows SDK 6.0A to d:\cpp\include

                                • I got the ICU libraries form http://download.icu-project.org/files/icu4c/4.8.1.1/icu4c-4_8_1_1-Win32-msvc10.zip

                                • I copied the icu headers ti d:\cpp\include

                                • I copied the icu lib files (*.lib and *.dll) to d:\Qt\qt5\qtbase\lib

                                • I renamed icuin.lib to icui18n.lib, icuind.lib to icui18nd.lib and icudt.lib to icudata.lib

                                • I got ftp://sources.redhat.com/pub/pthreads-win32/pthreads-w32-2-8-0-release.exe for the pthread library

                                • I copied the pthreads headers and libraries to d:\cpp\include and d:\cpp\lib

                                • I changed one subroutine in d:/Qt/qt5/qtwebkit/Tools/Scripts/webkitdirs.pm to the following code (because the mkspec can be a ;-separated path list):
                                  @sub retrieveQMakespecVar
                                  {
                                  my $mkspec = $[0];
                                  my $varname = $
                                  [1];

                                  my $varvalue = undef;
                                  #print "retrieveMakespecVar " . $mkspec . ", " . $varname . "\n";
                                  my @mkspecs = split(/;/,$mkspec);
                                  foreach $mkspec (@mkspecs) {
                                  local SPEC;
                                  open (SPEC, "<$mkspec") or next;
                                  while (<SPEC>) {
                                  if ($_ =~ /\s
                                  include((.+))/) {
                                  # open the included mkspec
                                  my $oldcwd = getcwd();
                                  (my $volume, my $directories, my $file) = File::Spec->splitpath($mkspec);
                                  my $newcwd = "$volume$directories";
                                  chdir $newcwd if $newcwd;
                                  $varvalue = retrieveQMakespecVar($1, $varname);
                                  chdir $oldcwd;
                                  } elsif ($_ =~ /$varname\s*=\s*([^\s]+)/) {
                                  $varvalue = $1;
                                  last;
                                  }
                                  }
                                  close SPEC;
                                  last if defined($varvalue);
                                  }
                                  return $varvalue;
                                  }@

                                • sub retrieveQMakespecVar
                                  {
                                  my $mkspec = $[0];
                                  my $varname = $
                                  [1];

                                  my $varvalue = undef;
                                  #print "retrieveMakespecVar " . $mkspec . ", " . $varname . "\n";
                                  my @mkspecs = split(/;/,$mkspec);
                                  foreach $mkspec (@mkspecs) {
                                  local SPEC;
                                  open (SPEC, "<$mkspec") or next;
                                  while (<SPEC>) {
                                  if ($_ =~ /\s
                                  include((.+))/) {
                                  # open the included mkspec
                                  my $oldcwd = getcwd();
                                  (my $volume, my $directories, my $file) = File::Spec->splitpath($mkspec);
                                  my $newcwd = "$volume$directories";
                                  chdir $newcwd if $newcwd;
                                  $varvalue = retrieveQMakespecVar($1, $varname);
                                  chdir $oldcwd;
                                  } elsif ($_ =~ /$varname\s*=\s*([^\s]+)/) {
                                  $varvalue = $1;
                                  last;
                                  }
                                  }
                                  close SPEC;
                                  last if defined($varvalue);
                                  }
                                  return $varvalue;
                                  }
                                  @

                                • sub retrieveQMakespecVar
                                  {
                                  my $mkspec = $[0];
                                  my $varname = $
                                  [1];

                                  my $varvalue = undef;
                                  #print "retrieveMakespecVar " . $mkspec . ", " . $varname . "\n";
                                  my @mkspecs = split(/;/,$mkspec);
                                  foreach $mkspec (@mkspecs) {
                                  local SPEC;
                                  open (SPEC, "<$mkspec") or next;
                                  while (<SPEC>) {
                                  if ($_ =~ /\s
                                  include((.+))/) {
                                  # open the included mkspec
                                  my $oldcwd = getcwd();
                                  (my $volume, my $directories, my $file) = File::Spec->splitpath($mkspec);
                                  my $newcwd = "$volume$directories";
                                  chdir $newcwd if $newcwd;
                                  $varvalue = retrieveQMakespecVar($1, $varname);
                                  chdir $oldcwd;
                                  } elsif ($_ =~ /$varname\s*=\s*([^\s]+)/) {
                                  $varvalue = $1;
                                  last;
                                  }
                                  }
                                  close SPEC;
                                  last if defined($varvalue);
                                  }
                                  return $varvalue;
                                  }
                                  @
                                  (Continued in next post)

                                Helmut Mülner

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                                  hmuelner
                                  wrote on 8 Mar 2012, 13:05 last edited by
                                  #72

                                  (Continued)

                                  • cd d:\Qt\qt5\qtwebkit
                                  • set PATH=%PATH%;d:\Qt\qt5\gnuwin32\bin
                                  • set QMAKEPATH=D:\Qt\qt5\qtwebkit\Tools\qmake
                                  • perl Tools\Scripts\build-webkit --qt

                                  It now fails in qtwebkit\Source\WebCore:

                                  nmake.exe -f Makefile.WebCore.DerivedSources

                                  breaks with: NMAKE : fatal error U1095: expanded command line 'echo D:/Qt/qt5/qtwebkit/Source/WebCore/Modules/geolocation/Geolocation.idl ...[lots of idl files] ... | tr ' ' '\n' > generated/idl_files.tmp && perl -ID:/Qt/qt5/qtwebkit/Source/WebCore/bindings/scripts D:/Qt/qt5/qtwebkit/Source/WebCore/bindings/scripts/resolve-supplemental.pl --defines "LANGUAGE_JAVASCRIPT=1 ENABLE_CHANNEL_MESSAGING=1 ENABLE_SQL_DATABASE=1 ENABLE_DATALIST=1 ENABLE_WORKERS=1 ENABLE_SHARED_WORKERS=1 ENABLE_XSLT=1 ENABLE_FILTERS=1 ENABLE_CSS_FILTERS=1 ENABLE_SVG=1 ENABLE_JAVASCRIPT_DEBUGGER=1 ENABLE_WEB_SOCKETS=1 ENABLE_WEB_TIMING=1 ENABLE_TOUCH_EVENTS=1 ENABLE_GESTURE_EVENTS=1 WTF_USE_TILED_BACKING_STORE=1 ENABLE_NOTIFICATIONS=1 ENABLE_DETAILS=1 ENABLE_METER_TAG=1 ENABLE_PROGRESS_TAG=1 ENABLE_BLOB=1 ENABLE_REQUEST_ANIMATION_FRAME=1" --idlFilesList generated/idl_files.tmp --supplementalDependencyFile generated/supplemental_dependency.tmp --idlAttributesFile D:/Qt/qt5/qtwebkit/Source/WebCore/bindings/scripts/IDLAttributes.txt --preprocessor "D:\Qt\qt5\qtbase\bin\moc.exe -E"' too long

                                  (the command line is approx. 31400 characters long).

                                  Does anybody have an idea how to fix this section in DerivedSources.pri?
                                  @resolveSupplemental.input = IDL_ATTRIBUTES_FILE
                                  resolveSupplemental.script = $$RESOLVE_SUPPLEMENTAL_SCRIPT

                                  FIXME : We need to use only perl at some point.

                                  resolveSupplemental.commands = echo $$IDL_BINDINGS | tr ' ' '\n' > $$IDL_FILES_TMP &&
                                  perl -I$$PWD/bindings/scripts $$resolveSupplemental.script
                                  --defines "$${FEATURE_DEFINES_JAVASCRIPT}"
                                  --idlFilesList $$IDL_FILES_TMP
                                  --supplementalDependencyFile ${QMAKE_FUNC_FILE_OUT_PATH}/$$SUPPLEMENTAL_DEPENDENCY_FILE
                                  --idlAttributesFile $${IDL_ATTRIBUTES_FILE}
                                  --preprocessor "$${QMAKE_MOC} -E"
                                  resolveSupplemental.output = $$SUPPLEMENTAL_DEPENDENCY_FILE
                                  resolveSupplemental.add_output_to_sources = false
                                  resolveSupplemental.depends = $$PWD/bindings/scripts/IDLParser.pm $$IDL_BINDINGS
                                  GENERATORS += resolveSupplemental
                                  @

                                  Helmut Mülner

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                                    hmuelner
                                    wrote on 21 Mar 2012, 14:07 last edited by
                                    #73

                                    Build qt5 on Windows 7 with VS2010 (next try, hope this is not a double post).

                                    I tried again with the version from 2012-03-21 with this configuration:

                                    configure -confirm-license -opensource -debug-and-release -platform win32-msvc2010 -fast -mp -opengl desktop -nomake tests -nomake examples

                                    nmake generated the following files in qtbase/bin:

                                    qmake.exe
                                    moc.pdb
                                    moc.ilk
                                    moc.exe
                                    rcc.pdb
                                    rcc.ilk
                                    rcc.exe
                                    qdoc.pdb
                                    qdoc.ilk
                                    qdoc.exe
                                    uic.pdb
                                    uic.ilk
                                    uic.exe
                                    QtCored5.dll
                                    QtCore5.dll
                                    QtNetworkd5.dll
                                    QtNetwork5.dll
                                    QtSqld5.dll
                                    QtSql5.dll
                                    QtGuid5.dll
                                    QtGui5.dll
                                    QtXmld5.dll
                                    QtXml5.dll
                                    QtWidgetsd5.dll
                                    QtWidgets5.dll
                                    QtTestd5.dll
                                    QtTest5.dll
                                    QtPrintSupportd5.dll
                                    QtPrintSupport5.dll
                                    QtConcurrentd5.dll
                                    QtConcurrent5.dll
                                    QtOpenGLd5.dll
                                    QtOpenGL5.dll
                                    QtSvgd5.dll
                                    QtSvg5.dll
                                    phonond5.dll
                                    phonon5.dll
                                    QtXmlPatternsd5.dll
                                    QtXmlPatterns5.dll
                                    xmlpatterns.ilk
                                    xmlpatterns.pdb
                                    xmlpatterns.exe
                                    xmlpatternsvalidator.pdb
                                    xmlpatternsvalidator.ilk
                                    xmlpatternsvalidator.exe
                                    QtScriptd5.dll
                                    QtScript5.dll
                                    QtScriptToolsd5.dll
                                    QtScriptTools5.dll
                                    QtV8d5.dll
                                    QtV85.dll
                                    QtQmld5.dll
                                    QtQml5.dll
                                    QtQuickd5.dll
                                    QtQuick5.dll
                                    QtQuickTestd5.dll
                                    QtQuickTest5.dll
                                    qmlscene.ilk
                                    qmlscene.pdb
                                    qmlscene.exe
                                    qmlplugindump.ilk
                                    qmlplugindump.pdb
                                    qmlplugindump.exe
                                    qmlmin.pdb
                                    qmlmin.ilk
                                    qmlmin.exe
                                    qmlprofiler.pdb
                                    qmlprofiler.ilk
                                    qmlprofiler.exe
                                    qmltestrunner.pdb
                                    qmltestrunner.ilk
                                    qmltestrunner.exe
                                    QtQuick1d5.dll
                                    QtQuick15.dll
                                    qmlviewer.ilk
                                    qmlviewer.pdb
                                    qmlviewer.exe
                                    idc.ilk
                                    idc.pdb
                                    idc.exe

                                    Building of webkit failed when trying to link jsc.exe with a lot of warnings about importing locally defined symbols from JavaScriptCore.lib and 24 unresolved external symbols:
                                    JSC::evaluate
                                    JSC::checkSyntax
                                    WTF::randomNumber
                                    WTF::createThread
                                    WTF::MetaAllocatorHandle::~MetaAllocatorHandle (12 times)
                                    WTF::MetaAllocator::freeFreeSpaceNode
                                    WTF::PassRefPtr<class WTF::MetaAllocatorHandle>
                                    WTF::MetaAllocator::MetaAllocator
                                    WTF::cryptographicallyRandomNumber (4 times)

                                    Any guesses how to correct this?

                                    Helmut Mülner

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                                      hmuelner
                                      wrote on 21 Mar 2012, 17:17 last edited by
                                      #74

                                      Build qt5 on Windows 7 with VS2010 (continued)

                                      I could build all other modules (using nmake module-xxx) out of the box with the exception of qtmodule where moc could not parse dsserviceplugin.h because of a comma in Q_PLUGIN_METADATA. After correcting this it also built successfully.

                                      Helmut Mülner

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                                        hmuelner
                                        wrote on 22 Mar 2012, 08:29 last edited by
                                        #75

                                        qtscript and qtwebkit contain different versions of JavaScriptCore - it looks like syncing qt5 modules does not yet work perfectly ;-)

                                        Helmut Mülner

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                                          situ117
                                          wrote on 30 Mar 2012, 09:36 last edited by
                                          #76

                                          Hi,

                                          I am trying to build Qt5 on Chakra Linux. I have Xcb libraries installed, but when I start configuration script I get an error saying:

                                          @No QPA platform plugin enabled!
                                          If you really want to build without a QPA platform plugin you must pass
                                          -no-xcb and -no-eglfs to configure. Doing this will
                                          produce a Qt that cannot run GUI applications.
                                          The dependencies needed for xcb to build are listed in
                                          src/plugins/platforms/xcb/README@

                                          What I am missing here ?

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