Hi (David), I'm trying to build libobjc2 on FreeBSD 9.1 with clang 3.2 using cmake, but this fails miserably. What I did is this:
I checked out libobjc2 SVN r36340 (most recent at the time of writing). My clang is clang version 3.2 (tags/RELEASE_32/final). So I did this: $ mkdir Build; cd Build $ CC=clang CXX=clang++ cmake .. This picked up clang 3.2 as expected. However, running make fails: [ 48%] Built target objc Linking C executable AllocatePair ../libobjc.so.4.6: undefined reference to `std::type_info::__is_pointer_p() const' ../libobjc.so.4.6: undefined reference to `typeinfo for std::type_info' ../libobjc.so.4.6: undefined reference to `std::type_info::__is_function_p() const' ../libobjc.so.4.6: undefined reference to `std::type_info::__do_upcast(__cxxabiv1::__class_type_info const*, void**) const' ../libobjc.so.4.6: undefined reference to `vtable for std::type_info' ../libobjc.so.4.6: undefined reference to `std::type_info::~type_info()' clang: error: linker command failed with exit code 1 (use -v to see invocation) *** [Test/AllocatePair] Error code 1 Stop in /home/znek/Projects/GNUstep/libobjc2/Build. *** [Test/CMakeFiles/AllocatePair.dir/all] Error code 1 Stop in /home/znek/Projects/GNUstep/libobjc2/Build. *** [all] Error code 1 Stop in /home/znek/Projects/GNUstep/libobjc2/Build. Looking at ../CMakeLists.txt, this shouldn't happen, no? $cat ../CMakeLists.txt […] find_library(CXX_RUNTIME cxxrt) # If it doesn't, then look for GNU libsupc++.so instead (either works, they're # ABI compatible). […] I guess libcxxrt is FreeBSD 10 only? Cheers, Marcus -- Marcus Müller . . . http://www.mulle-kybernetik.com/znek/
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