[cfe-dev] libc++ MinGW build failure
Howard Hinnant
hhinnant at apple.com
Sun Nov 11 09:40:07 PST 2012
On Nov 11, 2012, at 12:31 PM, Ruben Van Boxem <vanboxem.ruben at gmail.com> wrote:
> Hi,
>
> I wanted to take another look at libc++ on Windows,
Thanks!
> but I get a build failure due to (I think) libc++ itself:
>
> + clang++ -c -g -Os -fPIC -std=c++0x -fstrict-aliasing -Wall -Wextra -Wshadow -Wconversion -Wpadded -Wmissing-prototypes -Wstrict-aliasing=2 -Wstrict-overflow=4 -nostdinc++ -I../include ../src/condition_variable.cpp
> In file included from ../src/condition_variable.cpp:10:
> ../include\condition_variable:158:25: error: constructor for 'std::__1::condition_variable_any' must explicitly initialize the member '__cv_' which does not have a default constructor
> condition_variable_any::condition_variable_any()
> ^
Just looking at this first one: condition_variable is required to have a default constructor. condition_variable (in <__mutex_base>) is currently only implemented on top of pthread_cond_t, and does have a default constructor if pthread_cond_t exists. Does pthread_cond_t exist in your environment?
Howard
> ../include\condition_variable:121:24: note: member is declared here
> condition_variable __cv_;
> ^
> ../include\__mutex_base:301:23: note: 'std::__1::condition_variable' declared here
> class _LIBCPP_VISIBLE condition_variable
> ^
> In file included from ../src/condition_variable.cpp:11:
> ../include\thread:433:11: error: no matching constructor for initialization of 'std::__1::mutex'
> mutex __mut;
> ^
> ../include\__mutex_base:48:5: note: candidate constructor not viable: requires 1 argument, but 0 were provided
> mutex(const mutex&);// = delete;
> ^
> In file included from ../src/condition_variable.cpp:11:
> ../include\thread:434:24: error: no matching constructor for initialization of 'std::__1::condition_variable'
> condition_variable __cv;
> ^
> ../include\__mutex_base:314:5: note: candidate constructor not viable: requires 1 argument, but 0 were provided
> condition_variable(const condition_variable&); // = delete;
> ^
> In file included from ../src/condition_variable.cpp:10:
> In file included from ../include\condition_variable:112:
> ../include\memory:2087:40: error: constructor for
> 'std::__1::__libcpp_compressed_pair_imp<std::__1::allocator<std::__1::mutex>, std::__1::mutex, 1>' must explicitly initialize the member '__second_' which does not have a default constructor
> _LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T1_param __t1)
> ^
> ../include\memory:2369:11: note: in instantiation of member function
> 'std::__1::__libcpp_compressed_pair_imp<std::__1::allocator<std::__1::mutex>, std::__1::mutex, 1>::__libcpp_compressed_pair_imp' requested here
> : base(_VSTD::forward<_T1_param>(__t1)) {}
> ^
> ../include\memory:3693:12: note: in instantiation of member function
> 'std::__1::__compressed_pair<std::__1::allocator<std::__1::mutex>, std::__1::mutex>::__compressed_pair' requested here
> : __data_(_VSTD::move(__a)) {}
> ^
> ../include\memory:4272:26: note: in instantiation of member function
> 'std::__1::__shared_ptr_emplace<std::__1::mutex, std::__1::allocator<std::__1::mutex>>::__shared_ptr_emplace' requested here
> ::new(__hold2.get()) _CntrlBlk(__a2, _VSTD::forward<_Args>(__args)...);
> ^
> ../include\memory:4631:12: note: in instantiation of function template specialization
> 'std::__1::shared_ptr<std::__1::mutex>::make_shared<>' requested here
> return shared_ptr<_Tp>::make_shared(_VSTD::forward<_Args>(__args)...);
> ^
> ../include\condition_variable:159:14: note: in instantiation of function template specialization 'std::__1::make_shared<std::__1::mutex, >' requested here
> : __mut_(make_shared<mutex>()) {}
> ^
> ../include\memory:2075:9: note: member is declared here
> _T2 __second_;
> ^
> ../include\__mutex_base:34:23: note: 'std::__1::mutex' declared here
> class _LIBCPP_VISIBLE mutex
> ^
> 4 errors generated.
>
> This is with Clang 3.1. Any ideas?
>
> Thanks,
>
> Ruben
>
> PS: please keep me in CC, I am not subscribed to cfe-dev
>
> _______________________________________________
> cfe-dev mailing list
> cfe-dev at cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev
More information about the cfe-dev
mailing list