in /usr/local/inclue/boost/system dir,for update version: [root@localhost system]# find ./ -type f -print|xargs grep "get_system_category" -n ./windows_error.hpp:110: { return error_code( e, get_system_category() ); } ./cygwin_error.hpp:49: { return error_code( e, get_system_category() ); } ./error_code.hpp:205: BOOST_SYSTEM_DECL const error_category & get_system_category(); ./error_code.hpp:208: static const error_category & system_category = get_system_category(); ./error_code.hpp:216: static const error_category & native_ecat = get_system_category(); ./error_code.hpp:315: error_code() : m_val(0), m_cat(&get_system_category()) {} ./error_code.hpp:343: m_cat = &get_system_category(); ./linux_error.hpp:102: { return error_code( e, get_system_category() ); } not update from the old boost version. [root@LOG system]# find ./ -type f -print|xargs grep "get_system_category" -n ./error_code.hpp:211: inline const error_category & get_system_category() { return system_category(); } which seems that when i update boost by “bjam install” ,the /usr/local/inclue/boost/system/error_code.hpp not been overwrited,its still the older version. At 2010-10-10，"Vladimir Prus" <vladimir@codesourcery.com> wrote:
hongleij wrote:
i have install 1.43 version in my system,after use “./bjam install” to intall boost1.44,i met the following error.
[root@localhost gridcast]# g++ -o datetime datetime_tcp_async_server.cpp -lpthread -lboost_system [-L/usr/local/lib
datetime_tcp_async_server.cpp:142:2: 警告：文件未以空白行结束
/tmp/ccjG0R2d.o: In function `__static_initialization_and_destruction_0(int, int)':
datetime_tcp_async_server.cpp:(.text+0x16c): undefined reference to `boost::system::get_system_category()'
....
the name changed from `boost::system::get_generic_category()' to `boost::system::generic_category()',so it seems if i already have an old version of boost,i need remove it clearly to reinstall the new one by myself.
You might want to add -I/usr/local/include to your compile command, perphaps?
- Volodya
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