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| {{improve|cross compiling is still unstable}} | | {{Moved To Community|Windows/Imported From TechBase/Build/{{#titleparts:{{PAGENAME}}||4}}}} |
| {{KDE4}}
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| ==Basic tools==
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| ===MinGw===
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| Install mingw for linux
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| On debian the packages are called mingw32, mingw32-binutils, mingw32-runtime, you need to install mingw32 with gcc/g++ 3 and not 4 since that doesn't work with kdelibs, debian testing/unstable has gcc 4 so i've installed mingw32 package from ubuntu repository.
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| On gentoo, you need to do the following: "emerge crossdev; crossdev mingw32".
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| ===Qt4 Kdesupport and dependencies===
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| You can install these dependencies(aspell, boost, dbus, qca etc..) from windows with the kdewin installer or manually download them from [http://sourceforge.net/project/showfiles.php?group_id=214730 sourceforge mirrors]
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| ===Qt4 and KDE4 for linux===
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| You also need to have Qt4 and KDE4 already installed on linux, to use moc/uic/kde4automoc etc...
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| ===Cmake===
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| To cross compile KDE you need CMake >= 2.5, you can get the last version from [http://cmake.org/HTML/Download.html#cvs CVS]
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| * Create two files Toolchain-mingw32.cmake and mingw32-kdelibs.cmake with this contents and place them somewhere i.e. in your home
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| ====Toolchain-mingw32.cmake====
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| <syntaxhighlight lang="scheme">
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| set(KDE_PREFIX /windows/kde4)
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| set(KDE4_SRC_DIR /home/kdeuser/kde/src)
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| # the name of the target operating system
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| SET(CMAKE_SYSTEM_NAME Windows)
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| # which compilers to use for C and C++
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| SET(CMAKE_C_COMPILER i586-mingw32msvc-gcc)
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| SET(CMAKE_CXX_COMPILER i586-mingw32msvc-g++)
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| # here is the target environment located
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| SET(CMAKE_FIND_ROOT_PATH /usr/i586-mingw32msvc ${KDE_PREFIX} )
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| # adjust the default behaviour of the FIND_XXX() commands: | |
| # search headers and libraries in the target environment, search
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| # programs in the host environment
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| set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
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| set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
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| set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
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| # FindQt4.cmake querys qmake to get information, this doesn't work when crosscompiling
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| set(QT_BINARY_DIR ${KDE4_SRC_DIR}/qt-copy/bin)
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| set(QT_LIBRARY_DIR ${KDE_PREFIX}/lib)
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| set(QT_QTCORE_LIBRARY ${KDE_PREFIX}/lib/libQtCore4.a)
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| set(QT_QTCORE_INCLUDE_DIR ${KDE_PREFIX}/include/QtCore)
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| set(QT_MKSPECS_DIR ${KDE_PREFIX}/mkspecs)
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| set(QT_MOC_EXECUTABLE ${QT_BINARY_DIR}/moc)
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| set(QT_QMAKE_EXECUTABLE ${QT_BINARY_DIR}/qmake)
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| set(QT_UIC_EXECUTABLE ${QT_BINARY_DIR}/uic)
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| </syntaxhighlight>
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| ====mingw32-kdelibs.cmake====
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| <syntaxhighlight lang="scheme">
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| set(KDE_PREFIX /windows/kde4)
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| set(KDE4_BIN_DIR /home/kdeuser/kde/bin)
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| # this one is used by FindKDE4.cmake to load FindKDE4Internal.cmake:
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| set(KDE4_DATA_DIR ${KDE_PREFIX}/share/apps CACHE PATH "points to the apps directory of installed kdelibs")
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| # not sure about this one:
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| set(KDEWIN_DIR ${KDE_PREFIX} CACHE PATH "what is it ?")
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| # disable some things:
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| set(WITH_AVAHI OFF CACHE BOOL "Disabled")
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| set(WITH_DNSSD OFF CACHE BOOL "Disabled")
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| set(WITH_ENCHANT OFF CACHE BOOL "Disabled")
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| set(WITH_FAM OFF CACHE BOOL "Disabled")
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| set(WITH_GSSAPI OFF CACHE BOOL "Disabled")
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| set(WITH_HSPELL OFF CACHE BOOL "Disabled")
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| set(WITH_OpenEXR OFF CACHE BOOL "Disabled")
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| # use the binaries from native KDE4
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| set(KDE4_KCFGC_EXECUTABLE ${KDE4_BIN_DIR}/kconfig_compiler CACHE PATH "")
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| set(KDE4_AUTOMOC_EXECUTABLE ${KDE4_BIN_DIR}/kde4automoc CACHE PATH "")
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| set(KDE4_MEINPROC_EXECUTABLE ${KDE4_BIN_DIR}/meinproc4 CACHE PATH "")
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| </syntaxhighlight>
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| <br/>
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| adjust the values according to your setup
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| ==Build kdelibs==
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| <syntaxhighlight lang="bash">
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| svn co svn://anonsvn.kde.org/home/kde/trunk/KDE/kdelibs
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| cd kdelibs
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| mkdir build
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| cd build
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| cmake -DCMAKE_TOOLCHAIN_FILE=~/Toolchain-mingw32.cmake ..
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| </syntaxhighlight>
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| * you have to make a link to your kde4automoc and kconfig_compiler for linux in the bin directory
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| <syntaxhighlight lang="bash">
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| ln -s /path/to/kde4automoc bin/
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| ln -s /path/to/kconfig_compiler bin/
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| </syntaxhighlight>
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| * since linux is case sensitive you have to make symbolic links for some headers
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| <syntaxhighlight lang="bash">
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| cd /windows/kde4/include
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| ln -s soprano Soprano
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| </syntaxhighlight>
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| * You will get an error in klauncher.moc about slotKDEInitData so go into kinit and do something like this(you need wine)
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| <syntaxhighlight lang="bash">
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| rm *.moc
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| ../bin/kde4automoc.exe /home/kdeuser/kde/src/KDE/kdelibs/build/kinit/klauncher_automoc.cpp /home/kdeuser/kde/src/KDE/kdelibs/kinit /home/kdeuser/kde/src/KDE/kdelibs/build/kinit /windows/kde4/bin/moc.exe
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| </syntaxhighlight>
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| and then do make as usual
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| * Another error in kdewidgets because wine doesn't find some dll to run makekdewidgets.exe so either run the linux version manually like this
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| makekdewidgets -o /home/kdeuser/kde/src/KDE/kdelibs/build/kdewidgets/kdewidgets.cpp /home/kdeuser/kde/src/KDE/kdelibs/kdewidgets/kde.widgets
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| or symlink those missing library in your wine system32 folder(i haven't tested it but it should work)
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| ==Build kdepimlibs==
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| This is easy :)
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| <syntaxhighlight lang="bash">
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| svn co svn://anonsvn.kde.org/home/kde/trunk/KDE/kdepimlibs
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| cd kdepimlibs
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| mkdir build
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| cd build
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| cmake -DCMAKE_TOOLCHAIN_FILE=~/Toolchain-mingw32.cmake -C ~/mingw32-kdelibs.cmake ..
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| make
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| make install
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| </syntaxhighlight>
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| ==Build kdebase==
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| This is easy :)
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| <syntaxhighlight lang="bash">
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| svn co svn://anonsvn.kde.org/home/kde/trunk/KDE/kdebase
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| cd kdebase
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| mkdir build
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| cd build
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| cmake -DCMAKE_TOOLCHAIN_FILE=~/Toolchain-mingw32.cmake -C ~/mingw32-kdelibs.cmake ..
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| make
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| make install
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| </syntaxhighlight>
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| == Icecream ==
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| One of the joys of cross-compiling is the possibility to use an icecream cluster to speed up compilation.
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| For Debian Etch, you can get an icecream environment from here:
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| ftp://ftp.kdab.com/gpg4win/devtools/debian-etch-mingw32-icecream-env.tar.gz
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| (If you want to create your own environment: icecc-create-env does a good job except that it packages the wrong as. /usr/bin/i586-mingw32msvc-as is needed)
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| The bin/ dir with symlinks from i586-mingw32msvc-* to /usr/bin/icecc:
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| ftp://ftp.kdab.com/gpg4win/devtools/icecc-mingw-bin.tar.bz2
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| Untar icecc-mingw-bin.tar.bz2 to icecc-mingw-bin
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| Then set the following environment variables:
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| <syntaxhighlight lang="bash">
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| export PATH=/path/to/icecc-mingw-bin/bin:$PATH
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| export ICECC_CC=i586-mingw32msvc-gcc
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| export ICECC_CXX=i586-mingw32msvc-g++
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| export ICECC_VERSION=i686:/path/to/debian-etch-mingw32-icecream-env.tar.gz,x86_64:/path/to/debian-etch-mingw32-icecream-env.tar.gz
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| </syntaxhighlight>
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| (Re-)run cmake and have fun.
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