[thread] fails to build on Cygwin with weird errors
Vicente, I'm trying to get the pool tests up and running (they fail across the board, at least on develop), and one of them requires Thread, which fails to build under g++/Cygwin. The errors are of the kind ..\..\..\libs\thread\src\win32\thread.cpp: In member function 'bool boost::thread::start_thread_noexcept()': ..\..\..\libs\thread\src\win32\thread.cpp:337:127: error: 'struct boost::detail::thread_data_base' has no member named 'id' uintptr_t const new_thread=_beginthreadex(0,0,&thread_start_function,thread_info.get(),CREATE_SUSPENDED,&thread_info->id); which leads me to think that, on Cygwin, you're using the POSIX header with the Win32 source file.
On 15 Jan 2015 at 5:22, Peter Dimov wrote:
Vicente,
I'm trying to get the pool tests up and running (they fail across the board, at least on develop), and one of them requires Thread, which fails to build under g++/Cygwin.
It's working with mingw32 and mingw64: https://ci.nedprod.com/view/Boost%20Thread-Expected-Permit/job/Boost.T hread%20Build/
The errors are of the kind
..\..\..\libs\thread\src\win32\thread.cpp: In member function 'bool boost::thread::start_thread_noexcept()': ..\..\..\libs\thread\src\win32\thread.cpp:337:127: error: 'struct boost::detail::thread_data_base' has no member named 'id' uintptr_t const new_thread=_beginthreadex(0,0,&thread_start_function,thread_info.get(),CREATE_SUSPENDED,&thread_info->id);
which leads me to think that, on Cygwin, you're using the POSIX header with the Win32 source file.
I believe Cygwin wants you to use a pthread API, so this is expected. Its point is to emulate POSIX on Windows. Often the best way of building for Cygwin is to #undef WIN32 entirely and let the code think it's building for Linux. I'm not even sure if Cygwin is supported by Boost.Thread. If it was, it certainly isn't regularly tested. Niall -- ned Productions Limited Consulting http://www.nedproductions.biz/ http://ie.linkedin.com/in/nialldouglas/
Niall Douglas wrote:
I believe Cygwin wants you to use a pthread API, so this is expected.
You can use the POSIX API, or you can use the Windows API, either will work. What you can't use is the header that declares the POSIX version of your class, with the source file that expects the Windows version of your class.
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Niall Douglas -
Peter Dimov