Getting Started/Build/Windows/Cross-Compiling: Difference between revisions

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{{improve|cross compiling is still unstable}}
{{Moved To Community|Windows/Imported From TechBase/Build/{{#titleparts:{{PAGENAME}}||4}}}}
{{KDE4}}
 
==Basic tools==
===MinGw===
Install mingw for linux, 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
===Qt4 Kdesupport and dependencies===
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]
===Qt4 and KDE4 for linux===
You also need to have Qt4 and KDE4 already installed on linux, to use moc/uic/kde4automoc etc...
===Cmake===
To cross compile KDE you need CMake >= 2.5, you can get the last version from [http://cmake.org/HTML/Download.html#cvs CVS]
 
* Create two files Toolchain-mingw32.cmake and mingw32-kdelibs.cmake with this contents and place them somewhere i.e. in your home
====Toolchain-mingw32.cmake====
<code scheme>
# the name of the target operating system
SET(CMAKE_SYSTEM_NAME Windows)
 
# which compilers to use for C and C++
SET(CMAKE_C_COMPILER i586-mingw32msvc-gcc)
SET(CMAKE_CXX_COMPILER i586-mingw32msvc-g++)
 
# here is the target environment located
SET(CMAKE_FIND_ROOT_PATH  /usr/i586-mingw32msvc /windows/kde4 )
 
# adjust the default behaviour of the FIND_XXX() commands:
# search headers and libraries in the target environment, search
# programs in the host environment
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
 
# FindQt4.cmake querys qmake to get information, this doesn't work when crosscompiling
set(KDE_PREFIX    /windows/kde4)
set(QT_BINARY_DIR  /home/kdeuser/kde/src/qt-copy/bin)
set(QT_LIBRARY_DIR  ${KDE_PREFIX}/lib)
set(QT_QTCORE_LIBRARY  ${KDE_PREFIX}/lib/libQtCore4.a)
set(QT_QTCORE_INCLUDE_DIR ${KDE_PREFIX}/include/QtCore)
set(QT_MKSPECS_DIR  ${KDE_PREFIX}/mkspecs)
set(QT_MOC_EXECUTABLE  ${QT_BINARY_DIR}/moc)
set(QT_QMAKE_EXECUTABLE  ${QT_BINARY_DIR}/qmake)
set(QT_UIC_EXECUTABLE  ${QT_BINARY_DIR}/uic)
</code>
 
====mingw32-kdelibs.cmake====
<code scheme>
set(KDE_PREFIX    /windows/kde4)
set(KDE4_BIN_DIR    /home/kdeuser/kde/bin)
 
# this one is used by FindKDE4.cmake to load FindKDE4Internal.cmake:
set(KDE4_DATA_DIR    ${KDE_PREFIX}/share/apps CACHE PATH "points to the apps directory of installed kdelibs")
 
# not sure about this one:
set(KDEWIN_DIR ${KDE_PREFIX} CACHE PATH "what is it ?")
 
# disable some things:
set(WITH_AVAHI OFF  CACHE BOOL "Disabled")
set(WITH_DNSSD OFF  CACHE BOOL "Disabled")
set(WITH_ENCHANT OFF CACHE BOOL "Disabled")
set(WITH_FAM OFF    CACHE BOOL "Disabled")
set(WITH_GSSAPI OFF  CACHE BOOL "Disabled")
set(WITH_HSPELL OFF  CACHE BOOL "Disabled")
set(WITH_OpenEXR OFF CACHE BOOL "Disabled")
 
# use the binaries from native KDE4
set(KDE4_KCFGC_EXECUTABLE ${KDE4_BIN_DIR}/kconfig_compiler CACHE PATH "")
set(KDE4_AUTOMOC_EXECUTABLE ${KDE4_BIN_DIR}/kde4automoc CACHE PATH "")
set(KDE4_MEINPROC_EXECUTABLE ${KDE4_BIN_DIR}/meinproc4 CACHE PATH "")
</code>
<br/>
adjust the values according to your setup
 
==Build kdelibs==
<code bash>
svn co svn://anonsvn.kde.org/home/kde/trunk/KDE/kdelibs
cd kdelibs
mkdir build
cd build
cmake -DCMAKE_TOOLCHAIN_FILE=~/Toolchain-mingw32.cmake ..
</code>
* you have to make a link to your kde4automoc and kconfig_compiler for linux in the bin directory
<code bash>
ln -s /path/to/kde4automoc bin/
ln -s /path/to/kconfig_compiler bin/
</code>
* since linux is case sensitive you have to make symbolic links for some headers
<code bash>
cd /windows/kde4/include
ln -s soprano Soprano
</code>
 
* You will get an error in klauncher.moc about slotKDEInitData so go into kinit and do something like this(you need wine)
<code bash>
rm *.moc
../bin/kde4automoc.exe /home/kdeuser/kde/src/KDE/kdelibs/build/kinit/kdeinit_klauncher_automoc.cpp /home/kdeuser/kde/src/KDE/kdelibs/kinit /home/kdeuser/kde/src/KDE/kdelibs/build/kinit /windows/kde4/bin/moc.exe
</code>
and then do make as usual
 
* Another error in kdewidgets because wine doesn't find some dll to run makekdewidgets.exe so either run the linux version manually like this
makekdewidgets -o /home/kdeuser/kde/src/KDE/kdelibs/build/kdewidgets/kdewidgets.cpp /home/kdeuser/kde/src/KDE/kdelibs/kdewidgets/kde.widgets
or symlink those missing library in your wine system32 folder(i haven't tested it but it should work)
 
==Build kdepimlibs==
This is easy :)
<code bash>
svn co svn://anonsvn.kde.org/home/kde/trunk/KDE/kdepimlibs
cd kdepimlibs
mkdir build
cd build
cmake -DCMAKE_TOOLCHAIN_FILE=~/Toolchain-mingw32.cmake -C ~/mingw32-kdelibs.cmake  ..
make
make install
</code>
 
==Build kdebase==
This is easy :)
<code bash>
svn co svn://anonsvn.kde.org/home/kde/trunk/KDE/kdebase
cd kdebase
mkdir build
cd build
cmake -DCMAKE_TOOLCHAIN_FILE=~/Toolchain-mingw32.cmake -C ~/mingw32-kdelibs.cmake ..
make
make install
</code>

Latest revision as of 14:09, 11 March 2016

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