Question

I’ve recently built a linux platform interface for Cocotron, and was able to build the Foundation framework with no errors.

However, when linking my objective-C project, I get a linker error:

/Developer/Cocotron/1.0/Linux/i386/Frameworks/Foundation.framework//libFoundation.so: undefined reference to `__gnu_objc_personality_v0′

I’ve done a bit of googling, but haven’t found anything all that helpful.

Here’s my ld command line (simplified a bit for readability):

Ld /Users/me/MyProject/build/Linux/Release/ENCLAnalyzer normal i386     cd /Users/me/MyProject     /Developer/Cocotron/1.0/Linux/i386/gcc-4.3.1/bin/i386-ubuntu-linux-gcc -arch i386      -L/Users/me/MyProject/build/Linux/Release      -L../../frameworks/Shared/FFmpeg/Linux/lib      -L/Developer/Cocotron/1.0/PlatformInterfaces/i386-ubuntu-linux/lib      -L/Developer/Cocotron/1.0/PlatformInterfaces/i386-ubuntu-linux/intel/mkl/9.0/lib/32      -L/Developer/Cocotron/1.0/PlatformInterfaces/i386-ubuntu-linux/intel/ipp/5.1/ia32/sharedlib     -L/Users/me/frameworks/Shared/FFmpeg/Linux/lib       -F/Users/me/MyProject/build/Linux/Release      -F/Users/me/frameworks/Shared      -F/Developer/Cocotron/1.0/Linux/i386/Frameworks      -F/Users/me/frameworks/OtherProject/Linux       -filelist '/Users/me/MyProject/build/Linux/MyProject.build/Release/MyProject Linux.build/Objects-normal/i386/MyProject.LinkFileList'       -Wl,-rpath-link,/Developer/Cocotron/1.0/PlatformInterfaces/i386-ubuntu-linux/lib      -Wl,-rpath-link,../../frameworks/Shared/FFmpeg/Linux/lib      -Wl,-rpath-link,/Developer/Cocotron/1.0/PlatformInterfaces/i386-ubuntu-linux/intel/ipp/5.1/ia32/sharedlib     -Wl,-rpath-link,/Developer/Cocotron/1.0/PlatformInterfaces/i386-ubuntu-linux/intel/mkl/9.0/lib/32     -Wl,-rpath-link,/Developer/Cocotron/1.0/Linux/i386/Frameworks/Foundation.framework       -framework Foundation -framework MyFramework1 -framework MyFramework2 -framework MyFramework3      -o /Users/me/MyProject/build/Linux/Release/MyProject 

I have a feeling that the foundation project needs to link to a library that it isn’t, or that maybe it is linking to the wrong version of some library. But I’m not sure.

Any help would be much appreciated.

Answer 1

Update: There were some compiler updates in the Cocotron repository which fix this issue. The the install script has been updated to pick these up and the new version is here:

http://cocotron.org/Tools/Downloads/InstallCDT-2009-04-17.zip

Before using this, be sure to delete /Developer/Cocotron/1.0/Downloads/gcc-4.3.1.tar.bz2 or it won’t pick up the new source. Make sure to specify Linux i386 when reinstalling.

i.e. sudo ./install.sh Linux i386

Thanks to Christopher Lloyd for the info above, and for emailing me the fix.