[Ktechlab-devel] updated readme for source tree

[Julian Bäume]

moin!

please find my answers below:

Am Samstag, 19. November 2011, 08:36:24 schrieb Slavko:
> hi,
>
> > https://github.com/ktechlab/ktechlab/blob/new-gui/README
> 
> i tried to folow build instructions. For my system (debian testing amd64)
> was missing dependency:
> 
> -- Could NOT find Eigen2  (missing:  EIGEN2_INCLUDE_DIR)  (Required is at
> least version "2.0.0")
> 
> which was not mentioned in dependecies, 

Eigen2 is not required for building the sources (and AFAIK it’s also not used 
at the moment) so this is not a problem.

> after installation this dev packages i get from cmake:
> 
> tests/math/CMakeFiles/mathtest.dir/mathtest_automoc.o [  3%] Building CXX
> object tests/math/CMakeFiles/mathtest.dir/matrixtester.o
> /tmp/ktechlab/tests/math/matrixtester.cpp: In member function ‘double
> MatrixTester::differenceOfVectors(const VectorXd&, const
> KTechLab::QuickVector&)’: /tmp/ktechlab/tests/math/matrixtester.cpp:80:36:
> warning: comparison between signed and unsigned integer expressions
> [-Wsign-compare] /tmp/ktechlab/tests/math/matrixtester.cpp:85:33: warning:
> comparison between signed and unsigned integer expressions [-Wsign-compare]
> Linking CXX executable mathtest
> /usr/bin/ld: CMakeFiles/mathtest.dir/matrixtester.o: undefined reference to
> symbol 'QObject::childEvent(QChildEvent*)' /usr/bin/ld: note:
> 'QObject::childEvent(QChildEvent*)' is defined in DSO
> /usr/lib/libQtCore.so.4 so try adding it to the linker command line
> /usr/lib/libQtCore.so.4: could not read symbols: Invalid operation
> collect2: ld returned 1 exit status
> make[2]: *** [tests/math/mathtest] Error 1
> make[1]: *** [tests/math/CMakeFiles/mathtest.dir/all] Error 2
> make: *** [all] Error 2
> 
> can someone explain and help me, please?

I commited a fix to github that should fix the linker problems for you. Thanks 
for reporting this issue :)

bye then
julian
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