libcxx on Linux: symbols used but not defined

[Alexey Samsonov]

Hi!

I'm trying to build libcxx on Linux (Ubuntu Precise) using the following
command:

cmake -DLIBCXX_CXX_ABI=libsupc++
'-DLIBCXX_LIBSUPCXX_INCLUDE_PATHS=/usr/include/c++/4.6;/usr/include/c++/4.6/x86_64-linux-gnu/.;'
-DLIBCXX_ENABLE_EXCEPTIONS=OFF -DLIBCXX_ENABLE_SHARED=OFF
-DLIBCXX_ENABLE_RTTI=OFF -DCMAKE_BUILD_TYPE=Release
-DCMAKE_INSTALL_PREFIX=/tmp/tmp.boBpS5zFqt/libcxx_inst
/tmp/tmp.boBpS5zFqt/libcxx

and I want the result to be "hermetic" in the sense that resulting static
library libc++.a doesn't reference undefined symbols from std::
However, I see the following problems:

(libc++.a.new.cpp.o):/tmp/tmp.boBpS5zFqt/libcxx/src/new.cpp:function
std::bad_alloc::~bad_alloc(): error: undefined reference to
'std::exception::~exception()'
(libc++.a.new.cpp.o):/tmp/tmp.boBpS5zFqt/libcxx/src/new.cpp:function
std::bad_array_new_length::~bad_array_new_length(): error: undefined
reference to 'std::exception::~exception()'
(libc++.a.new.cpp.o):/tmp/tmp.boBpS5zFqt/libcxx/src/new.cpp:function
std::bad_array_new_length::~bad_array_new_length(): error: undefined
reference to 'std::exception::~exception()'
(libc++.a.ios.cpp.o):/tmp/tmp.boBpS5zFqt/libcxx/src/ios.cpp:function
std::__1::basic_ostream<char, std::__1::char_traits<char> >::flush():
error: undefined reference to 'std::uncaught_exception()'
(libc++.a.ios.cpp.o):/tmp/tmp.boBpS5zFqt/libcxx/src/ios.cpp:function
std::__1::basic_ostream<wchar_t, std::__1::char_traits<wchar_t> >::flush():
error: undefined reference to 'std::uncaught_exception()'
(libc++.a.ios.cpp.o):/tmp/tmp.boBpS5zFqt/libcxx/src/ios.cpp:function
std::__1::basic_ostream<char, std::__1::char_traits<char>
>::sentry::~sentry(): error: undefined reference to
'std::uncaught_exception()'
(libc++.a.ios.cpp.o):/tmp/tmp.boBpS5zFqt/libcxx/src/ios.cpp:function
std::__1::basic_ostream<char, std::__1::char_traits<char>
>::sentry::~sentry(): error: undefined reference to
'std::uncaught_exception()'
(libc++.a.memory.cpp.o):/tmp/tmp.boBpS5zFqt/libcxx/src/memory.cpp:function
std::__1::bad_weak_ptr::~bad_weak_ptr(): error: undefined reference to
'std::exception::~exception()'
(libc++.a.memory.cpp.o):/tmp/tmp.boBpS5zFqt/libcxx/src/memory.cpp:function
vtable for std::__1::__shared_weak_count: error: undefined reference to
'std::__1::__shared_weak_count::__get_deleter(std::type_info const&) const'
(libc++.a.thread.cpp.o):/tmp/tmp.boBpS5zFqt/libcxx/src/thread.cpp:function
std::__1::thread::~thread(): error: undefined reference to
'std::terminate()'

What is the correct way to for that? I have the patch (attached) that works
for me, but I'm not really sure it's correct
(especially the first part).

-- 
Alexey Samsonov, MSK
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