如何使用gcc抑制boost :: thread警告？

Question

在我的项目中，我最近决定使用boost :: thread。我的代码编译Linux下的罚款，但Windows（x86或x64）下，我得到的gcc 4.5以下警告：

In file included from C:\Boost\include\boost-1_44/boost/thread/shared_mutex.hpp:14:0, 
       from C:\Boost\include\boost-1_44/boost/thread/detail/thread_group.hpp:9, 
       from C:\Boost\include\boost-1_44/boost/thread/thread.hpp:24, 
       from C:\Boost\include\boost-1_44/boost/thread.hpp:13, 
       from include\systools/upnp_control_point.hpp:50, 
       from src\upnp_control_point.cpp:45: 
C:\Boost\include\boost-1_44/boost/thread/win32/shared_mutex.hpp: In member function 'T boost::shared_mutex::interlocked_ 
compare_exchange(T*, T, T) [with T = boost::shared_mutex::state_data]': 
C:\Boost\include\boost-1_44/boost/thread/win32/shared_mutex.hpp:110:103: instantiated from here 
C:\Boost\include\boost-1_44/boost/thread/win32/shared_mutex.hpp:50:99: error: dereferencing type-punned pointer will bre 
ak strict-aliasing rules 
C:\Boost\include\boost-1_44/boost/thread/win32/shared_mutex.hpp:50:99: error: dereferencing type-punned pointer will bre 
ak strict-aliasing rules 
C:\Boost\include\boost-1_44/boost/thread/win32/shared_mutex.hpp:51:52: error: dereferencing type-punned pointer will bre 
ak strict-aliasing rules 
C:\Boost\include\boost-1_44/boost/thread/win32/shared_mutex.hpp:51:52: error: dereferencing type-punned pointer will bre 
ak strict-aliasing rules 
In file included from C:\Boost\include\boost-1_44/boost/algorithm/string/detail/find_format.hpp:18:0, 
       from C:\Boost\include\boost-1_44/boost/algorithm/string/find_format.hpp:23, 
       from C:\Boost\include\boost-1_44/boost/algorithm/string/replace.hpp:22, 
       from C:\Boost\include\boost-1_44/boost/date_time/date_facet.hpp:17, 
       from C:\Boost\include\boost-1_44/boost/date_time/gregorian/gregorian_io.hpp:16, 
       from C:\Boost\include\boost-1_44/boost/date_time/gregorian/gregorian.hpp:31, 
       from C:\Boost\include\boost-1_44/boost/date_time/posix_time/time_formatters.hpp:12, 
       from C:\Boost\include\boost-1_44/boost/date_time/posix_time/posix_time.hpp:24, 
       from include\systools/upnp_device.hpp:51, 
       from include\systools/upnp_control_point.hpp:48, 
       from src\upnp_control_point.cpp:45: 
C:\Boost\include\boost-1_44/boost/algorithm/string/detail/find_format_store.hpp: At global scope: 
C:\Boost\include\boost-1_44/boost/algorithm/string/detail/find_format_store.hpp: In instantiation of 'bool boost::algori 
thm::detail::check_find_result(InputT&, FindResultT&) [with InputT = std::basic_string<char>, FindResultT = boost::itera 
tor_range<__gnu_cxx::__normal_iterator<char*, std::basic_string<char> > >]': 
C:\Boost\include\boost-1_44/boost/algorithm/string/detail/find_format_all.hpp:259:17: instantiated from 'void boost::a 
lgorithm::detail::find_format_all_impl(InputT&, FinderT, FormatterT, FindResultT) [with InputT = std::basic_string<char> 
, FinderT = boost::algorithm::detail::first_finderF<const char*, boost::algorithm::is_equal>, FormatterT = boost::algori 
thm::detail::const_formatF<boost::iterator_range<const char*> >, FindResultT = boost::iterator_range<__gnu_cxx::__normal 
_iterator<char*, std::basic_string<char> > >]' 
C:\Boost\include\boost-1_44/boost/algorithm/string/find_format.hpp:268:13: instantiated from 'void boost::algorithm::f 
ind_format_all(SequenceT&, FinderT, FormatterT) [with SequenceT = std::basic_string<char>, FinderT = boost::algorithm::d 
etail::first_finderF<const char*, boost::algorithm::is_equal>, FormatterT = boost::algorithm::detail::const_formatF<boos 
t::iterator_range<const char*> >]' 
C:\Boost\include\boost-1_44/boost/algorithm/string/replace.hpp:654:13: instantiated from 'void boost::algorithm::repla 
ce_all(SequenceT&, const Range1T&, const Range2T&) [with SequenceT = std::basic_string<char>, Range1T = char [15], Range 
2T = char [1]]' 
C:\Boost\include\boost-1_44/boost/units/detail/utility.hpp:50:51: instantiated from here 
C:\Boost\include\boost-1_44/boost/algorithm/string/detail/find_format_store.hpp:74:18: error: unused parameter 'Input' 
scons: *** [src\upnp_control_point.o] Error 1 
scons: building terminated because of errors. 

我只是包括在我自己的.cpp文件，没有什么特别的<boost/thread.hpp>。

因为我无法控制boost的代码，有没有办法来暂时禁止这些警告？例如：

#super_killing_macro_that_disable_some_warnings 
#include <boost/thread.hpp> 
#its_all_good_know_i_want_my_warnings_back 

我该怎么办？

Answer 1

我刚刚发现-isystem选项，允许包括目录为系统目录。目录中没有任何警告，因此它对我的任务似乎很完美。

此外，这具有使SCons忽略那些在依赖关系树中的目录的副作用。由于我不期望这些库经常改变，所以没关系。

Answer 2

你可能有一些运气诊断附注： http://gcc.gnu.org/onlinedocs/gcc/Diagnostic-Pragmas.html

Answer 3

我有在mingw-GET-INST-20101030安装了GCC 4.5.0在Windows XP SP3几乎是相同的警告与MinGW和促进1.45.0建成在此间表示

http://fw-geekycoder.blogspot.com/2010/12/building-boost-using-mingw.html

我我正在使用BOOST_THREAD_USE_LIB编译器标志和-lboost_thread-mgw45-mt-1_45链接器标志。在这篇文章结尾处，我得到的仅有的四条警告如下。

C：\工作空间\ boost_1_45_0 /升压/线程/的Win32/shared_mutex.hpp：113：103：从这里实例 C：\工作空间\ boost_1_45_0 /升压/线程/的Win32/shared_mutex.hpp：53：99：警告：解引用类型指针会破坏严格别名规则 C：\ workspace \ boost_1_45_0/boost/thread/win32/shared_mutex.hpp：53：99：警告：解引用类型指针会破坏严格别名规则 C ：\ workspace \ boost_1_45_0/boost/thread/win32/shared_mutex.hpp：54：52：warning：取消引用类型化指针将打破严格别名规则 C：\ workspace \ boost_1_45_0/boost/thread/win32/shared_mutex.hpp ：54：52：warning：解引用类型指针会打破严格别名规则

我还没有能够让结果代码不会崩溃，所以我不知道这些警告是否重要（通过检查线程是否改变我的数值结果）。