Questions about cross compiling for ARM / CMake issues

[Samuel Stirtzel]

2012/2/27 Andreas Pakulat <apaku at gmx.de>:
> On 27.02.12 14:53:33, Samuel Stirtzel wrote:
>> 2012/2/27 Andreas Pakulat <apaku at gmx.de>:
>> > On 27.02.12 14:16:38, Samuel Stirtzel wrote:
>> >> 2012/2/27 Samuel Stirtzel <s.stirtzel at googlemail.com>:
>> >> > Hi,
>> >> > this is part of the approach to port Plasma Active to OpenEmbedded
>> >> > (see [1], [2]).
>> >> >
>> >> >
>> >> > In the current status the kdelibs build fine.
>> >> >
>> >> > However there is an issue where other packages (like e.g. Nepomuk) use
>> >> > the wrong libraries.
>> >> > In this case Nepomuk tries to use the Hosts x86_64 libraries for
>> >> > kdecore and kdeui, (see http://pastebin.com/CqqSGxYY for an example).
>> >> >
>> >> > The path "/work/oe-core/tmp-eglibc/sysroots/overo/" is the staging
>> >> > sysroot of the build target.
>> >> > And since CMAKE_FIND_ROOT_PATH is set to that path, it should not
>> >> > "find" the library somewhere else..?
>> >> > "CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY" is also set.
>> >> >
>> >> > Is this by any chance related to the absolute paths in the
>> >> > KDELibsDependencies.cmake file?
>> >> >
>> >> >
>> >> >
>> >> > Anyone has an idea what I'm missing to solve this?
>> >> > Help would be appreciated.
>> >> >
>> >> >
>> >> > Links:
>> >> > [1] Plasma Active port to OpenEmbedded:
>> >> > http://lists.kde.org/?l=kde-active&m=132940140929418&w=2
>> >> > [2] OpenEmbedded: http://www.openembedded.org/wiki/Main_Page
>> >> >
>> >> > --
>> >> > Regards
>> >> > Samuel
>> >>
>> >> Just to clarify my question, changing the KDELibsDependencies.cmake
>> >> file does not solve my problem.
>> >> In the logs it states "Found KDE 4.7 library dir:
>> >> /work/oe-core/tmp-eglibc/sysroots/overo/usr/lib" but still the error
>> >> occurs: "/usr/lib/libkdecore.so.5.7.0: file not recognized: File
>> >> format not recognized"
>> >>
>> >> Is there any Black Magic™ that finds the core library and relentless
>> >> ignores all the other settings?
>> >
>> > Please provide at least the complete linker line (make VERBOSE=1) so we
>> > can see how kdecore is being linked.
>>
>> Thanks for your answer.
>>
>> Here the complete line with verbose=1: http://pastebin.com/EebmCiN2
>
> Ok, so the absolute path to kdecore&Co is wrong. Hmm, makes me wonder
> wether kdelibs supports cross-compilation at all...

IMHO it is between supporting cross compiling and not supporting it
(aka. there is something but it won't work out of the box).

>
>> From what I discovered, it is likely that
>> KDELibs4LibraryTargets-relwithdebinfo.cmake could be responsible, but
>> where is this file created?
>
> Thats generated as part of the kdelbis build, I believe by cmake (look
> for install(EXPORT...) lines). Which cmake version are you using?

CMake version 2.8.5

> Andreas
>
> _______________________________________________
> Kde-buildsystem mailing list
> Kde-buildsystem at kde.org
> https://mail.kde.org/mailman/listinfo/kde-buildsystem



-- 
Regards
Samuel