OSX 10.5 & dynamic libs, CodeBlocks 12.11 -shared option unknown by ld

[Smirftsch]

after successfully building 12.11 now on OSX I have trouble with building a shared lib. Indeed it seems that selection of type dynamic library in the project properties results in an automated adding of "-shared" option, which again- at least in 10.5 is not supported by ld. Is this something to be fixed in CodeBlocks?