[OGRE-499] Boost Thread-mt Linking problem on Mac 10.10 (yeosmite)

[paroj]

[reporter="wdavilaneto", created="Mon, 24 Aug 2015 06:52:11 +0200"]

Linking CXX shared library ../lib/macosx/Ogre.framework/Ogre
Undefined symbols for architecture x86_64:
"std::_1::vector_base_common::_throw_length_error() const", referenced from:
void std::_1::vector1::pair, std::1::allocator1::pair > >::push_back_slow_path1::pair const>(std::_1::pair const&) in libboost_thread-mt.a(thread.o)
void std::_1::vector, std::1::allocator > >::_push_back_slow_path const>(boost::shared_ptr const&) in libboost_thread-mt.a(thread.o)
"std::runtime_error::runtime_error(char const*)", referenced from:
boost::condition_variable::wait(boost::unique_lock&) in libboost_thread-mt.a(thread.o)
boost::condition_variable::do_wait_until(boost::unique_lock&, timespec const&) in libboost_thread-mt.a(thread.o)
boost::condition_variable::condition_variable() in libboost_thread-mt.a(thread.o)
boost::mutex::mutex() in libboost_thread-mt.a(thread.o)
boost::unique_lock::lock() in libboost_thread-mt.a(thread.o)
boost::mutex::lock() in libboost_thread-mt.a(thread.o)
boost::unique_lock::unlock() in libboost_thread-mt.a(thread.o)
...
"std::runtime_error::runtime_error(std::runtime_error const&)", referenced from:
void boost::throw_exception(boost::thread_resource_error const&) in libboost_thread-mt.a(thread.o)
boost::exception_detail::clone_impl > boost::enable_current_exception >(boost::exception_detail::error_info_injector const&) in libboost_thread-mt.a(thread.o)
boost::exception_detail::clone_impl >::clone() const in libboost_thread-mt.a(thread.o)
boost::exception_detail::clone_impl >::clone_impl(boost::exception_detail::clone_impl > const&) in libboost_thread-mt.a(thread.o)
void boost::throw_exception(boost::lock_error const&) in libboost_thread-mt.a(thread.o)
boost::exception_detail::clone_impl > boost::enable_current_exception >(boost::exception_detail::error_info_injector const&) in libboost_thread-mt.a(thread.o)
boost::exception_detail::clone_impl >::clone() const in libboost_thread-mt.a(thread.o)
...
"std::_1::basic_string1::char_traits, std::1::allocator >::_init(char const*, unsigned long)", referenced from:
boost::system::(anonymous namespace)::generic_error_category::message(int) const in libboost_system-mt.a(error_code.o)
"std::_1::basic_string1::char_traits, std::_1::allocator >::append(char const*)", referenced from:
boost::system::system_error::what() const in libboost_thread-mt.a(thread.o)
"std::_1::basic_string1::char_traits, std::_1::allocator >::append(char const*, unsigned long)", referenced from:
boost::system::system_error::what() const in libboost_thread-mt.a(thread.o)
"std::_1::basic_string1::char_traits, std::_1::allocator >::assign(char const*)", referenced from:
boost::system::system_error::what() const in libboost_thread-mt.a(thread.o)
boost::system::(anonymous namespace)::generic_error_category::message(int) const in libboost_system-mt.a(error_code.o)
"std::_1::basic_string1::char_traits, std::1::allocator >::basic_string(std::1::basic_string1::char_traits, std::_1::allocator > const&)", referenced from:
void boost::throw_exception(boost::thread_resource_error const&) in libboost_thread-mt.a(thread.o)
boost::exception_detail::clone_impl > boost::enable_current_exception >(boost::exception_detail::error_info_injector const&) in libboost_thread-mt.a(thread.o)
boost::exception_detail::clone_impl >::clone() const in libboost_thread-mt.a(thread.o)
boost::exception_detail::clone_impl >::clone_impl(boost::exception_detail::clone_impl > const&) in libboost_thread-mt.a(thread.o)
void boost::throw_exception(boost::lock_error const&) in libboost_thread-mt.a(thread.o)
boost::exception_detail::clone_impl > boost::enable_current_exception >(boost::exception_detail::error_info_injector const&) in libboost_thread-mt.a(thread.o)
boost::exception_detail::clone_impl >::clone() const in libboost_thread-mt.a(thread.o)
...
"std::_1::basic_string1::char_traits, std::_1::allocator >::~basic_string()", referenced from:
boost::system::system_error::what() const in libboost_thread-mt.a(thread.o)
boost::condition_variable::wait(boost::unique_lock&) in libboost_thread-mt.a(thread.o)
boost::condition_variable::do_wait_until(boost::unique_lock&, timespec const&) in libboost_thread-mt.a(thread.o)
boost::system::system_error::~system_error() in libboost_thread-mt.a(thread.o)
boost::system::system_error::~system_error() in libboost_thread-mt.a(thread.o)
boost::condition_variable::condition_variable() in libboost_thread-mt.a(thread.o)
void boost::throw_exception(boost::thread_resource_error const&) in libboost_thread-mt.a(thread.o)
...
"std::bad_alloc::bad_alloc()", referenced from:
boost::exception_ptr boost::exception_detail::get_static_exception_object() in libboost_thread-mt.a(thread.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [lib/macosx/Ogre.framework/Versions/1.10.0/Ogre] Error 1
make[1]: *** [OgreMain/CMakeFiles/OgreMain.dir/all] Error 2
make: *** [all] Error 2

[bowang]

The source of your problem is due to the deviation of libc++ from libstdc++ (details can be found on http://libcxx.llvm.org)
Since OS X 10.9, Apple uses its own version of C++ library, i.e. libc++, with its clang compiler by default, rather than the standard libstdc++ from GNU.

However, in CMakeList.txt, the deployment target is set to 10.7, i.e.

  # 10.7 is the minimum for libc++ support
  set(CMAKE_OSX_DEPLOYMENT_TARGET 10.7)

The parameter CMAKE_OSX_DEPLOYMENT_TARGET is propagated into the compilation argument as '-mmacosx-version-min=10.7'

In OS X 10.7, the default C++ library was still libstdc++. Thus, clang attempts to link OGRE against libstdc++. Meanwhile, the boost library on your Mac OSX has been updated and is built with libc++, which you can confirm with otool as follow:

otool -L /usr/local/lib/libboost_system.dylib

Therefore, the linker cannot find the libc++ library required by boost.

Solution: in short, build OGRE targeting at your OS X version (i,e, 10.10) by correcting CMAKE_OSX_DEPLOYMENT_TARGET.

  set(CMAKE_OSX_DEPLOYMENT_TARGET 10.10)

[paroj]

thanks for your explanation. However on the CI server this currently only triggers a warning - it seems that the newer Xcode/ CMake handles this correctly now. See:
https://travis-ci.org/OGRECave/ogre/jobs/102723959#L2086