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If you like to commit to the repositories, create an account on gitlab.com and ask in the [http://talk.maemo.org/showthread.php?t=84782 TMO thread]. See the group [https://gitlab.com/groups/qt5-maemo5] page, for an overview of repositories.
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= Adapting Qt5 to the N900 (using MADDE) =
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= Building Qt5 for the N900 (using scratchbox) =
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Prerequisites:
Prerequisites:
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* any scratchbox ARMEL target, tested with [[CSSU-thumb toolchain setup (gcc4.7.2-linaro)]]
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* [[MADDE]]
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* Xlib-xcb.h and libX11-xcb.so build from http://maemo.org/packages/source/view/fremantle_sdk_free_source/libx11/1.1.99.6+0m5 (build with --with-xcb)  
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* Xlib-xcb.h and libX11-xcb.so build from http://maemo.org/packages/source/view/fremantle_sdk_free_source/libx11/1.1.99.6+0m5 (build with --with-xcb) moved to ${MADDEROOT}/sysroots/fremantle-arm-sysroot-20.2010.36-2-slim/usr/include/X11/ (/usr/lib resp.)
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** We would need to deliver libX11.so.6 too, but --with-xcb breaks keyboard support for system apps
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** Binaries available here: [http://repos.fuhlbrueck.net/qt5-maemo5/pool/main/libx/libx11/ repos.fuhlbrueck.net/qt5-maemo5/pool/main/libx/libx11/]
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** Solution: we install a copy of libX11.so with XCB supoort, named libXc11.so and link against this copy, so system binaries don't load it (tested, works reliably)
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*** apt-get install libxc11-xcb-dev (with frafl's temporary Qt5 repo enabled, see [[Qt5-Maemo5]])
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*** all "-lX11" (and "-lX11-xcb") in the Qt sources have been changed to "-lX'''c'''11" ("-lX'''c'''11-xcb" respectively)
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If you want to help porting Qt5 to Maemo5 do:
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MADDEROOT=/opt/QtSDK/Maemo/4.6.2
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git clone git://gitorious.org/+qt5-maemo5/qt/qt5-maemo5.git
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cd qt5-maemo5 && git remote set-url --push origin git@gitorious.org:+qt5-maemo5/qt
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checkout maemo5
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git clone git://gitorious.org/+qt5-maemo5/qt/qt5-maemo5-qtbase.git qtbase
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git config --add submodule.qtbase.url git://gitorious.org/+qt5-maemo5/qt/qt5-maemo5-qtbase.git
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cd qtbase && checkout maemo5 && git remote set-url --push origin git@gitorious.org:+qt5-maemo5/qt/qt5-maemo5-qtbase.git && cd ..
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./init-repository -f
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#-sysroots redirects everything to a path under ${MADDEROOT}
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ln -s `pwd` ${MADDEROOT}/sysroots/fremantle-arm-sysroot-20.2010.36-2-slim`pwd`
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=== Prepare your build environment ===
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Now it's time to configure:
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  #clone the repo
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  #change if your host is not x86_64
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  git clone https://gitlab.com/qt5-maemo5/qt5-maemo5.git
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  ./configure -developer-build -opensource -nomake examples -nomake tests -no-gtkstyle -confirm-license -device linux-maemo-n900-g++ -device-option CROSS_COMPILE=${MADDEROOT}/toolchains/arm-2007q3-51sb6-gdb71-arm-none-linux-gnueabi_linux_x86_64/bin/arm-none-linux-gnueabi- -sysroot ${MADDEROOT}/sysroots/fremantle-arm-sysroot-20.2010.36-2-slim -qt-xcb -make libs -prefix /opt/qt5
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cd qt5-maemo5 && git remote set-url --push origin git@gitlab.com:qt5-maemo5/qt5-maemo5.git
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make module-qtbase module-qtdeclarative
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git checkout maemo5
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./init-repository -f --module-subset=all
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  cd qtbase && git remote set-url --push origin git@gitlab.com:qt5-maemo5/qt5-maemo5-qtbase.git && cd ..
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  cd qtdeclarative && git remote set-url --push origin git@gitlab.com:qt5-maemo5/qt5-maemo5-qtdeclarative.git && cd .. 
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  cd qtmaemo5 && git remote set-url --push origin git@gitlab.com:qt5-maemo5/qt5-maemo5-qtmaemo5.git && cd ..
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  cd debian && ./setupdebianlinks.sh && cd ..
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#if you like to use the Thumb2 instructions check for -mthumb in QMAKE_CFLAGS
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vim qtbase/mkspecs/devices/linux-maemo-n900-g++/qmake.conf
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=== Now it's time to configure ===
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If you like to commit to the repository, create an account on gitorious.org and ask in this thread: http://talk.maemo.org/showthread.php?t=84782
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configure for a normal build within scratchbox (now standard)
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  PKG_CONFIG_LIBDIR=/usr/lib/pkgconfig/ PKG_CONFIG_SYSROOT_DIR=/ ./configure -no-c++11 -developer-build -opensource -nomake examples -nomake tests -gtkstyle -confirm-license -device linux-maemo-n900-g++ -qt-xcb -make libs -prefix /opt/qt5
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configure for a build '''outside of scratchbox''' instead (should still work, see wiki history for additional prerequisites)
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= Adapting Qt5 to the N900 (using scratchbox) =
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#-no-c++11 is only needed because of a single bug (related to gcc4.7?)
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./configure -no-c++11 -developer-build -opensource -nomake examples -nomake tests -confirm-license -device linux-maemo-n900-g++ -device-option CROSS_COMPILE=/scratchbox/compilers/${COMPILER}/bin/arm-none-linux-gnueabi- -sysroot /scratchbox/users/${USER}/targets/${TARGET}/ -qt-xcb -make libs -prefix /opt/qt5
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=== Finally, we build Qt ===
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Prerequisites:
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make module-qtbase module-qtdeclarative
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* any scratchbox ARMEL target, tested with [[CSSU-thumb toolchain setup (gcc4.7.2-linaro)]]
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#or, especially for additional modules, but works for base and declarative, too
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** We still run this build commands **outside** of scratchbox and only use the toolchain and sysroot (like with MADDE or for Raspberry Pi etc.)
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cd qtSOMEMODULE
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* Xlib-xcb.h and libX11-xcb.so build from http://maemo.org/packages/source/view/fremantle_sdk_free_source/libx11/1.1.99.6+0m5 (build with --with-xcb) moved to ${MADDEROOT}/sysroots/fremantle-arm-sysroot-20.2010.36-2-slim/usr/include/X11/ (/usr/lib resp.)
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../qtbase/bin/qmake
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** Binaries available here: [http://repos.fuhlbrueck.net/qt5-maemo5/pool/main/libx/libx11/ repos.fuhlbrueck.net/qt5-maemo5/pool/main/libx/libx11/]
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make
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#if debianized (i.e. debian exists)
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dpkg-buildpackage -b
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#attention: no prober clean rules in debian (to save some time)
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#so remove debian/tmp to force prober reinstall
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installation (build '''in''' scratchbox (s.a.))
 
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cd qtbase && fakeroot make install && cd ..
 
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cd qtjsbackend && fakeroot make install && cd ..
 
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cd qtsvg && fakeroot make install && cd ..
 
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cd qtdeclarative && fakeroot make install && cd ..
 
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ln -s /opt/qt5/bin/qmake /usr/bin/qmake-qt5
 
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= Building Qt5 for the N900 (using MADDE) =
 
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'''Deprecated'''
 
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Prerequisites:
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If you want to help porting Qt5 to Maemo5 do:
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* [[MADDE]]
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USER=YourScratchboxUserName
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* The same as for scratchbox
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TARGET=FREMANTLE_ARMEL_GCC472
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COMPILER=linaro-4.7-2012.07-fremantle-armv7a
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rm /scratchbox/users/${USER}/targets/${TARGET}/usr/lib/libdl.so
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ln -s ../../libdl.so.2 /scratchbox/users/${USER}/targets/${TARGET}/usr/lib/libdl.so
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rm /scratchbox/users/${USER}/targets/${TARGET}/usr/lib/libm.so
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ln -s ../../libm.so.6 /scratchbox/users/${USER}/targets/${TARGET}/usr/lib/libm.so
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git clone git://gitorious.org/+qt5-maemo5/qt/qt5-maemo5.git
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cd qt5-maemo5 && git remote set-url --push origin git@gitorious.org:+qt5-maemo5/qt
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checkout maemo5
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git clone git://gitorious.org/+qt5-maemo5/qt/qt5-maemo5-qtbase.git qtbase
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git config --add submodule.qtbase.url git://gitorious.org/+qt5-maemo5/qt/qt5-maemo5-qtbase.git
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cd qtbase && checkout maemo5 && git remote set-url --push origin git@gitorious.org:+qt5-maemo5/qt/qt5-maemo5-qtbase.git && cd ..
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./init-repository -f
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MADDEROOT=/opt/QtSDK/Maemo/4.6.2
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Now it's time to configure:
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#see scratchbox
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git clone ...
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#-sysroots redirects everything to a path under ${MADDEROOT}
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ln -s `pwd` ${MADDEROOT}/sysroots/fremantle-arm-sysroot-20.2010.36-2-slim`pwd`
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#**Remove** -mthumb in QMAKE_CFLAGS (does not work with current MADDE)
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vim qtbase/mkspecs/devices/linux-maemo-n900-g++/qmake.conf
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Now it's time to configure and build:
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  #change if your host is not x86_64
  #change if your host is not x86_64
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  ./configure -developer-build -opensource -nomake examples -nomake tests -confirm-license -device linux-maemo-n900-g++ -device-option CROSS_COMPILE=${MADDEROOT}/toolchains/arm-2007q3-51sb6-gdb71-arm-none-linux-gnueabi_linux_x86_64/bin/arm-none-linux-gnueabi- -sysroot ${MADDEROOT}/sysroots/fremantle-arm-sysroot-20.2010.36-2-slim -qt-xcb -make libs -prefix /opt/qt5
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  ./configure -developer-build -opensource -nomake examples -nomake tests -confirm-license -device linux-maemo-n900-g++ -device-option CROSS_COMPILE=/scratchbox/compilers/${COMPILER}/bin/arm-none-linux-gnueabi- -sysroot /scratchbox/users/${USER}/targets/${TARGET}/ -qt-xcb -make libs -prefix /opt/qt5
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make module-qtbase module-qtdeclarative
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make module-qtbase module-qtdeclarative
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If you like to commit to the repository, create an account on gitorious.org and ask in this thread: http://talk.maemo.org/showthread.php?t=84782
 +
 
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= Testing Qt5 on the N900 =
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# as root, e.g. with sudo gainroot
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#not endless bandwidth, so use with care:
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echo "deb http://repos.fuhlbrueck.net/qt5-maemo5 fremantle main" >> /etc/apt/sources.list.d/hildon-application-manager.list
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#libX11-xcb1 is not optified, but tiny
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apt-get install libx11-xcb1 qt5-base qt5-declarative
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#only for now:
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ldconfig /opt/qt5/lib
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# as a normal user
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# get some example
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wget http://repos.fuhlbrueck.net/qt5-maemo5-examples/EXAMPLE
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chmod 755 EXAMPLE
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./EXAMPLE
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#don't be confused, if it shows some debug output

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