Re: Troubles linking with libpqxx

Hi Eric

Check your Runtime Library( MultiThreaded Debug Dll etc) and Struct member
alignment !!!

They should be same as what you used to compile libpq

Regards
sandeep

On 8/16/06, Eric <erousset(at)nospam-gmail(dot)com> wrote:
>
> Hi,
> I'm trying to compile the test001.cxx sample included in the
> libpqxx-2.6.7 package, but I get the following linking errors from
> Visual Studio .Net 2003:
>
> ------ Build started: Project: PostGreSample, Configuration: Release
> Win32 ------
>
> Linking...
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: __thiscall
> std::basic_string<char,struct std::char_traits<char>,class
> std::allocator<char> >::~basic_string<char,struct
> std::char_traits<char>,class std::allocator<char> >(void)"
> (??1?$basic_string(at)DU?$char_traits@D(at)std@@V?$allocator(at)D@2@@std@@QAE(at)XZ)
> already defined in test001.obj
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: __thiscall
> std::basic_string<char,struct std::char_traits<char>,class
> std::allocator<char> >::basic_string<char,struct
> std::char_traits<char>,class std::allocator<char> >(char const *)"
> (??0?$basic_string(at)DU?$char_traits@D(at)std@@V?$allocator(at)D@2@@std@@QAE(at)PBD
> @Z)
> already defined in test001.obj
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: __thiscall
> std::basic_string<char,struct std::char_traits<char>,class
> std::allocator<char> >::basic_string<char,struct
> std::char_traits<char>,class std::allocator<char> >(class
> std::basic_string<char,struct std::char_traits<char>,class
> std::allocator<char> > const &)"
> (??0?$basic_string(at)DU?$char_traits@D(at)std@@V?$allocator(at)D@2@@std@@QAE(at)ABV01
> @@Z)
> already defined in test001.obj
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: char const *
> __thiscall std::basic_string<char,struct std::char_traits<char>,class
> std::allocator<char> >::c_str(void)const "
> (?c_str(at)?$basic_string@DU?$char_traits(at)D@std@@V?$allocator(at)D
> @2@@std@@QBEPBDXZ)
> already defined in libcp.lib(locale0.obj)
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: __thiscall
> std::basic_string<char,struct std::char_traits<char>,class
> std::allocator<char> >::basic_string<char,struct
> std::char_traits<char>,class std::allocator<char> >(void)"
> (??0?$basic_string(at)DU?$char_traits@D(at)std@@V?$allocator(at)D@2@@std@@QAE(at)XZ)
> already defined in test001.obj
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: class
> std::basic_string<char,struct std::char_traits<char>,class
> std::allocator<char> > & __thiscall std::basic_string<char,struct
> std::char_traits<char>,class std::allocator<char> >::operator=(char
> const *)"
> (??4?$basic_string(at)DU?$char_traits@D(at)std@@V?$allocator(at)D@2@@std@@
> QAEAAV01(at)PBD@Z)
> already defined in test001.obj
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: class
> std::basic_string<char,struct std::char_traits<char>,class
> std::allocator<char> > & __thiscall std::basic_string<char,struct
> std::char_traits<char>,class std::allocator<char> >::assign(char const
> *,unsigned int)"
> (?assign(at)?$basic_string@DU?$char_traits(at)D@std@@V?$allocator(at)D@2@@std@@
> QAEAAV12(at)PBDI@Z)
> already defined in test001.obj
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: unsigned int
> __thiscall std::basic_string<char,struct std::char_traits<char>,class
> std::allocator<char> >::size(void)const "
> (?size(at)?$basic_string@DU?$char_traits(at)D@std@@V?$allocator(at)D
> @2@@std@@QBEIXZ)
> already defined in test001.obj
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: __thiscall
> std::basic_string<char,struct std::char_traits<char>,class
> std::allocator<char> >::basic_string<char,struct
> std::char_traits<char>,class std::allocator<char> >(unsigned int,char)"
> (??0?$basic_string(at)DU?$char_traits@D(at)std@@V?$allocator(at)D@2@@std@@QAE(at)ID@Z)
> already defined in libcp.lib(cerr.obj)
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: int __thiscall
> std::ios_base::width(int)" (?width(at)ios_base@std@@QAEHH(at)Z) already
> defined in test001.obj
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: void __thiscall
> std::basic_ios<char,struct std::char_traits<char> >::setstate(int,bool)"
> (?setstate(at)?$basic_ios@DU?$char_traits(at)D@std@@@std@@QAEXH_N(at)Z) already
> defined in test001.obj
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: class
> std::basic_string<char,struct std::char_traits<char>,class
> std::allocator<char> > & __thiscall std::basic_string<char,struct
> std::char_traits<char>,class std::allocator<char> >::append(unsigned
> int,char)"
> (?append(at)?$basic_string@DU?$char_traits(at)D@std@@V?$allocator(at)D@2@@std@@
> QAEAAV12(at)ID@Z)
> already defined in libcp.lib(cerr.obj)
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: static bool __cdecl
> std::char_traits<char>::eq_int_type(int const &,int const &)"
> (?eq_int_type(at)?$char_traits@D(at)std@@SA_NABH0(at)Z) already defined in
> test001.obj
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: static int __cdecl
> std::char_traits<char>::eof(void)" (?eof(at)?$char_traits@D(at)std@@SAHXZ)
> already defined in test001.obj
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: class
> std::basic_streambuf<char,struct std::char_traits<char> > * __thiscall
> std::basic_ios<char,struct std::char_traits<char> >::rdbuf(void)const "
> (?rdbuf(at)?$basic_ios@DU?$char_traits(at)D@std@@@std@@
> QBEPAV?$basic_streambuf(at)DU?$char_traits@D(at)std@@@2(at)XZ)
> already defined in test001.obj
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: unsigned int
> __thiscall std::basic_string<char,struct std::char_traits<char>,class
> std::allocator<char> >::max_size(void)const "
> (?max_size(at)?$basic_string@DU?$char_traits(at)D@std@@V?$allocator(at)D
> @2@@std@@QBEIXZ)
> already defined in test001.obj
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: int __thiscall
> std::ios_base::width(void)const " (?width(at)ios_base@std@@QBEHXZ) already
> defined in test001.obj
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: class
> std::basic_string<char,struct std::char_traits<char>,class
> std::allocator<char> > & __thiscall std::basic_string<char,struct
> std::char_traits<char>,class std::allocator<char> >::erase(unsigned
> int,unsigned int)"
> (?erase(at)?$basic_string@DU?$char_traits(at)D@std@@V?$allocator(at)D@2@@std@@
> QAEAAV12(at)II@Z)
> already defined in test001.obj
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: __thiscall
> std::locale::~locale(void)" (??1locale(at)std@@QAE(at)XZ) already defined in
> libcp.lib(ios.obj)
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: class std::locale
> __thiscall std::ios_base::getloc(void)const "
> (?getloc(at)ios_base@std@@QBE?AVlocale(at)2@XZ) already defined in
> libcp.lib(cerr.obj)
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: void __thiscall
> std::basic_streambuf<char,struct std::char_traits<char>
> >::_Unlock(void)"
> (?_Unlock(at)?$basic_streambuf@DU?$char_traits(at)D@std@@@std@@QAEXXZ) already
> defined in test001.obj
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: void __thiscall
> std::basic_streambuf<char,struct std::char_traits<char> >::_Lock(void)"
> (?_Lock(at)?$basic_streambuf@DU?$char_traits(at)D@std@@@std@@QAEXXZ) already
> defined in test001.obj
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: __thiscall
> std::_Lockit::~_Lockit(void)" (??1_Lockit(at)std@@QAE(at)XZ) already defined
> in libcp.lib(ios.obj)
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: void __thiscall
> std::locale::facet::_Register(void)"
> (?_Register(at)facet@locale(at)std@@QAEXXZ) already defined in
> libcp.lib(locale0.obj)
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: void __thiscall
> std::locale::facet::_Incref(void)" (?_Incref(at)facet@locale(at)std@@QAEXXZ)
> already defined in libcp.lib(ios.obj)
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: static unsigned int
> __cdecl std::ctype<char>::_Getcat(class std::locale::facet const * *)"
> (?_Getcat(at)?$ctype@D(at)std@@SAIPAPBVfacet(at)locale@2@@Z) already defined in
> libcp.lib(cerr.obj)
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: class
> std::locale::facet const * __thiscall std::locale::_Getfacet(unsigned
> int)const " (?_Getfacet(at)locale@std@@QBEPBVfacet(at)12@I(at)Z) already defined
> in libcp.lib(locale0.obj)
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: __thiscall
> std::locale::id::operator unsigned int(void)" (??Bid(at)locale@std@@QAEIXZ)
> already defined in libcp.lib(cerr.obj)
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: __thiscall
> std::_Lockit::_Lockit(int)" (??0_Lockit(at)std@@QAE(at)H@Z) already defined in
> libcp.lib(ios.obj)
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: char __thiscall
> std::basic_ios<char,struct std::char_traits<char> >::widen(char)const "
> (?widen(at)?$basic_ios@DU?$char_traits(at)D@std@@@std@@QBEDD(at)Z) already
> defined in libcp.lib(cerr.obj)
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: static int __cdecl
> std::char_traits<char>::to_int_type(char const &)"
> (?to_int_type(at)?$char_traits@D(at)std@@SAHABD(at)Z) already defined in
> test001.obj
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: char const &
> __thiscall std::basic_string<char,struct std::char_traits<char>,class
> std::allocator<char> >::operator[](unsigned int)const "
> (??A?$basic_string(at)DU?$char_traits@D(at)std@@V?$allocator(at)D@2@@std@@QBEABDI(at)Z
> )
> already defined in test001.obj
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: int __thiscall
> std::basic_streambuf<char,struct std::char_traits<char> >::sputc(char)"
> (?sputc(at)?$basic_streambuf@DU?$char_traits(at)D@std@@@std@@QAEHD(at)Z) already
> defined in test001.obj
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: char __thiscall
> std::basic_ios<char,struct std::char_traits<char> >::fill(void)const "
> (?fill(at)?$basic_ios@DU?$char_traits(at)D@std@@@std@@QBEDXZ) already defined
> in test001.obj
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: int __thiscall
> std::ios_base::flags(void)const " (?flags(at)ios_base@std@@QBEHXZ) already
> defined in test001.obj
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: class
> std::basic_ostream<char,struct std::char_traits<char> > & __thiscall
> std::basic_ostream<char,struct std::char_traits<char> >::flush(void)"
> (?flush(at)?$basic_ostream@DU?$char_traits(at)D@std@@@std@@QAEAAV12(at)XZ)
> already defined in test001.obj
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: class
> std::basic_ostream<char,struct std::char_traits<char> > * __thiscall
> std::basic_ios<char,struct std::char_traits<char> >::tie(void)const "
> (?tie(at)?$basic_ios@DU?$char_traits(at)D@std@@@std@@QBEPAV?$basic_ostream(at)DU
> ?$char_traits(at)D@std@@@2(at)XZ)
> already defined in test001.obj
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: bool __thiscall
> std::ios_base::good(void)const " (?good(at)ios_base@std@@QBE_NXZ) already
> defined in test001.obj
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: void __thiscall
> std::basic_ostream<char,struct std::char_traits<char> >::_Osfx(void)"
> (?_Osfx(at)?$basic_ostream@DU?$char_traits(at)D@std@@@std@@QAEXXZ) already
> defined in test001.obj
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "bool __cdecl
> std::uncaught_exception(void)" (?uncaught_exception(at)std@@YA_NXZ) already
> defined in libcp.lib(uncaught.obj)
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "public: class
> std::basic_string<char,struct std::char_traits<char>,class
> std::allocator<char> > & __thiscall std::basic_string<char,struct
> std::char_traits<char>,class std::allocator<char> >::operator=(class
> std::basic_string<char,struct std::char_traits<char>,class
> std::allocator<char> > const &)"
> (??4?$basic_string(at)DU?$char_traits@D(at)std@@V?$allocator(at)D@2@@std@@
> QAEAAV01(at)ABV01@@Z)
> already defined in test001.obj
> msvcprt.lib(MSVCP71.dll) : error LNK2005: "class
> std::basic_ostream<char,struct std::char_traits<char> > & __cdecl
> std::operator<<<struct std::char_traits<char> >(class
> std::basic_ostream<char,struct std::char_traits<char> > &,char const *)"
> (??$?6U?$char_traits(at)D@std@@@std@@YAAAV?$basic_ostream(at)DU?$char_traits@
> D(at)std@@@0(at)AAV10@PBD(at)Z)
> already defined in test001.obj
> MSVCRT.lib(MSVCR71.dll) : error LNK2005: "public: virtual __thiscall
> exception::~exception(void)" (??1exception@@UAE(at)XZ) already defined in
> LIBC.lib(stdexcpt.obj)
> MSVCRT.lib(MSVCR71.dll) : error LNK2005: "public: __thiscall
> exception::exception(void)" (??0exception@@QAE(at)XZ) already defined in
> LIBC.lib(stdexcpt.obj)
> MSVCRT.lib(MSVCR71.dll) : error LNK2005: "public: __thiscall
> exception::exception(class exception const &)"
> (??0exception@@QAE(at)ABV0@@Z) already defined in LIBC.lib(stdexcpt.obj)
> MSVCRT.lib(MSVCR71.dll) : error LNK2005: _strncpy already defined in
> LIBC.lib(strncpy.obj)
> MSVCRT.lib(MSVCR71.dll) : error LNK2005: "public: __thiscall
> bad_cast::bad_cast(char const *)" (??0bad_cast@@QAE(at)PBD@Z) already
> defined in LIBC.lib(stdexcpt.obj)
> MSVCRT.lib(MSVCR71.dll) : error LNK2005: "public: __thiscall
> exception::exception(char const * const &)" (??0exception@@QAE(at)ABQBD@Z)
> already defined in LIBC.lib(stdexcpt.obj)
> MSVCRT.lib(MSVCR71.dll) : error LNK2005: _atoi already defined in
> LIBC.lib(atox.obj)
> MSVCRT.lib(MSVCR71.dll) : error LNK2005: _memmove already defined in
> LIBC.lib(memmove.obj)
> MSVCRT.lib(ti_inst.obj) : error LNK2005: "private: __thiscall
> type_info::type_info(class type_info const &)"
> (??0type_info@@AAE(at)ABV0@@Z) already defined in LIBC.lib(typinfo.obj)
> MSVCRT.lib(ti_inst.obj) : error LNK2005: "private: class type_info &
> __thiscall type_info::operator=(class type_info const &)"
> (??4type_info@@AAEAAV0(at)ABV0@@Z) already defined in LIBC.lib(typinfo.obj)
> LINK : warning LNK4098: defaultlib 'MSVCRT' conflicts with use of other
> libs; use /NODEFAULTLIB:library
> libpqxx_static.lib(connection_base.obj) : error LNK2019: unresolved
> external symbol __imp__select(at)20 referenced in function $L84816
> Release/PostGreSample.exe : fatal error LNK1120: 1 unresolved externals
>
> Build log was saved at "file://c:\Documents and Settings\eric\Mes
> documents\Visual Studio Projects\PostGreSample\Release\BuildLog.htm"
> PostGreSample - 54 error(s), 1 warning(s)
>
>
> ---------------------- Done ----------------------
>
> Build: 0 succeeded, 1 failed, 0 skipped
>
>
> I'm using the .lib binaries which I compiled from the sources (same for
> libpq.lib).
> Thanks by advance,
> Eric
>
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