Elmer Discussion Forum

Posted: **25 May 2010, 10:13**

I'm having trouble compiling the tetgen_plugin from svn version 4481. From the last call onward:

g++ -Wl,-O1 -o plugin ElmerAPI.o predicates.o tetgen.o    -L/usr/lib -lQtGui -lQtCore -lpthread
ElmerAPI.o: In function `delegate_tetrahedralize':
ElmerAPI.cpp:(.text+0xcf): undefined reference to `tetrahedralize(char*, tetgenio*, tetgenio*, tetgenio*, tetgenio*)'
collect2: ld returned 1 exit status
make[1]: *** [plugin] Error 1
make[1]: Leaving directory `/home/smaddox/Downloads/elmerfem/elmerfem/trunk/misc/tetgen_plugin/plugin'
make: *** [sub-plugin-make_default] Error 2

It looks like there are some #ifdef and #ifndef's of TETLIBRARY trying to set it up for cli or library. If I force #define TETLIBRARY in tetgen.h, I get the following error:

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g++ -Wl,-O1 -o plugin ElmerAPI.o predicates.o tetgen.o    -L/usr/lib -lQtGui -lQtCore -lpthread
/usr/lib/gcc/i486-linux-gnu/4.4.1/../../../../lib/crt1.o: In function `_start':
/build/buildd/eglibc-2.10.1/csu/../sysdeps/i386/elf/start.S:115: undefined reference to `main'
collect2: ld returned 1 exit status
make[1]: *** [plugin] Error 1
make[1]: Leaving directory `/home/smaddox/Downloads/elmerfem/elmerfem/trunk/misc/tetgen_plugin/plugin'
make: *** [sub-plugin-make_default] Error 2

My guess is that someone messed with the preprocessors and didn't test it before submitting. It looks like either TETLIBRARY defined, or not defined there is a problem. Can anyone help me out?

Posted: **27 May 2010, 10:08**

I figured it out. Here was the solution (after installing the necessary dependencies , e.g. qt-sdk):

Set up environment variables by adding these to your .bashrc and restarting your bash session. Note, these are for the default Ubuntu install, so some changes will be necessary depending on your distro:

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export LD_LIBRARY_PATH=/usr/lib:$LD_LIBRARY_PATH
export ELMER_HOME=/usr
export ELMERGUI_HOME=/usr/share/ElmerGUI
export ELMER_POST_HOME=/usr/share/elmerpost

Check out svn version 4440:

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svn co --revision 4440 https://elmerfem.svn.sourceforge.net/svnroot/elmerfem elmersrc

Compile and install the plugin:

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cd elmersrc/trunk/misc/tetgen_plugin/
qmake
make
sudo make install

Link to the installed file, since it's named wrong:

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sudo ln -s $LD_LIBRARY_PATH/libtetplugin.so $LD_LIBRARY_PATH/libtet.so

Elmer Discussion Forum

Error compiling tetgen_plugin

Error compiling tetgen_plugin

Re: Error compiling tetgen_plugin