Difference between revisions of "Getting Started/Build/Windows/Cross-Compiling"

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{{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.
 
 
 
On gentoo, you need to do the following: "emerge crossdev; crossdev mingw32".
 
 
 
===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====
 
<syntaxhighlight lang="scheme">
 
set(KDE_PREFIX    /windows/kde4)
 
set(KDE4_SRC_DIR  /home/kdeuser/kde/src)
 
 
 
# 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 ${KDE_PREFIX} )
 
 
 
# 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(QT_BINARY_DIR  ${KDE4_SRC_DIR}/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)
 
</syntaxhighlight>
 
 
 
====mingw32-kdelibs.cmake====
 
<syntaxhighlight lang="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 "")
 
</syntaxhighlight>
 
<br/>
 
adjust the values according to your setup
 
 
 
==Build kdelibs==
 
<syntaxhighlight lang="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 ..
 
</syntaxhighlight>
 
* you have to make a link to your kde4automoc and kconfig_compiler for linux in the bin directory
 
<syntaxhighlight lang="bash">
 
ln -s /path/to/kde4automoc bin/
 
ln -s /path/to/kconfig_compiler bin/
 
</syntaxhighlight>
 
* since linux is case sensitive you have to make symbolic links for some headers
 
<syntaxhighlight lang="bash">
 
cd /windows/kde4/include
 
ln -s soprano Soprano
 
</syntaxhighlight>
 
 
 
* You will get an error in klauncher.moc about slotKDEInitData so go into kinit and do something like this(you need wine)
 
<syntaxhighlight lang="bash">
 
rm *.moc
 
../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
 
</syntaxhighlight>
 
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 :)
 
<syntaxhighlight lang="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
 
</syntaxhighlight>
 
 
 
==Build kdebase==
 
This is easy :)
 
<syntaxhighlight lang="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
 
</syntaxhighlight>
 
 
 
== Icecream ==
 
 
 
One of the joys of cross-compiling is the possibility to use an icecream cluster to speed up compilation.
 
 
 
For Debian Etch, you can get an icecream environment from here:
 
 
 
ftp://ftp.kdab.com/gpg4win/devtools/debian-etch-mingw32-icecream-env.tar.gz
 
 
 
(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)
 
 
 
The bin/ dir with symlinks from i586-mingw32msvc-* to /usr/bin/icecc:
 
 
 
ftp://ftp.kdab.com/gpg4win/devtools/icecc-mingw-bin.tar.bz2
 
 
 
Untar icecc-mingw-bin.tar.bz2 to icecc-mingw-bin
 
 
 
Then set the following environment variables:
 
 
 
<syntaxhighlight lang="bash">
 
export PATH=/path/to/icecc-mingw-bin/bin:$PATH
 
export ICECC_CC=i586-mingw32msvc-gcc
 
export ICECC_CXX=i586-mingw32msvc-g++
 
export ICECC_VERSION=i686:/path/to/debian-etch-mingw32-icecream-env.tar.gz,x86_64:/path/to/debian-etch-mingw32-icecream-env.tar.gz
 
</syntaxhighlight>
 
 
 
(Re-)run cmake and have fun.
 

Latest revision as of 14:09, 11 March 2016

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This page was last edited on 11 March 2016, at 14:09. Content is available under Creative Commons License SA 4.0 unless otherwise noted.