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On Sep 9, 2007, at 11:34 AM, Charles Connell wrote:
> On Sunday 09 September 2007 12:28, Michael Zanetti wrote:
>> Hello,
>>
>> I'm trying to port the OTR plugin to the new QT4/KDE4/Kopete-svn
>> Interface.
>>
>> I used am2cmake to generate CMakeLists.txt. After some changes in
>> this file
>> I started porting the code. It is now in a stage where it compiles
>> fine
>> with the new API and cmake. But while linking, cmake cannot find
>> any of the
>> Kopete's and KDE's libraries.
>>
>> src/CMakeLists.txt says:
>> link_directories( ${KDE4_LIB_DIR} ${KDE4_LIB_DIR}/kde4
>> ${CMAKE_CURRENT_BINARY_DIR} )
> change this to:
> link_directories( $KDE4_LIB_DIR ... ${CMAKE_CURRENT_BINARY_DIR}
> kopete )
> this will add a -lkopete to the link command
>
Yes, I suppose that's what it will do, but that's not the right way
to do it. link_directories is for specifying -L options to the
compiler, not -l options (there is a difference)
> btw, I dont think all those link directories are necessary
>
no, they're not, in fact, ${KDE_LIB_DIR}/kde4 is wrong. You should
remove that line. You shouldn't be linking to things in $
{KDE_LIB_DIR}/kde4
>>
>> build/CMakeFiles/kotr.dir/link.txt says:
>> /usr/bin/c++ -fPIC -Wnon-virtual-dtor -Wno-long-long -ansi -Wundef
>> -Wcast-align -Wchar-subscripts -Wall -W -Wpointer-arith -Wformat-
>> security
>> -fno-exceptions -fno-check-new -fno-common -fvisibility=hidden -O2 -g
>> -Wl,--fatal-warnings -Wl,--no-undefined -lc -shared
>> -Wl,-soname,libkotr.so.1 -o lib/libkotr.so.1.0.0
>> "CMakeFiles/kotr.dir/kotr_automoc.o"
>> "CMakeFiles/kotr.dir/otrlchatinterface.o"
>> "CMakeFiles/kotr.dir/otrlconfinterface.o" -L/usr/local/lib
>> -L/usr/kde/svn/lib -L/usr/kde/svn/lib/kde4
>> -L/home/dreadhead/Develop/4kopete_otr/kopete_otr/trunk/kopete_otr/
>> build
>> -L/usr/lib/qt4 -lQtCore -lpthread -lQtNetwork -lQtDBus -lQtXml -
>> lutil -lz
>> -lresolv -lkdecore -lotr
>>
>> As you can see the directories "/usr/kde/svn/lib/" and
>> "/usr/kde/svn/lib/kde4" are included in the link-call and all KDE4
>> and
>> Kopete-stuff is installed there. But when executing this command
>> cmake
>> fails with hundreds of error messages like this:
>> undefined reference to `Kopete::ChatSession::members() const'
>> undefined reference to `Kopete::Contact::contactId() const'
>> ...
>>
>> Could anyone please help me solving this issue?
>>
>> Thanks!
>> Michael
You're missing an -lkopete line in your line command.
You should have a "target_link_libraries" function in your
CMakeLists.txt file. Add a kopete entry to that list. It'll probably
end up looking something like:
target_link_libraries( <target-name> <other-libs> kopete )
where <target-name> and <other-libs> is the name of the target and
the additional libraries you're also linking to, respectively.
Hope this helps
- --
Matt
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