Link errors building rather simple application which uses C++ IO facilities
From: Ney André de Mello Zunino (zunino_at_inf.ufsc.br)
Date: 06/21/04
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Date: Sun, 20 Jun 2004 23:32:50 -0300
Hello.
I am having trouble building a simple project that uses one of the
Standard C++ Library's IO facilities. The following is a stripped-down
version that illustrates the problem:
[beginning of sample program]
#include <fstream>
int main(int argc, char* argv[])
{
std::ofstream saida("saida.txt");
}
[end of sample program]
This is the makefile I am using to build it:
[beginning of makefile]
proj = teste
libspadrao = kernel32.lib msvcrt.lib msvcprt.lib
opcomp = /c /EHs /G7 /WL /MT
oplink = /incremental:no /subsystem:windows /release /nodefaultlib
/verbose:lib
$(proj).exe: $(proj).obj
link $(oplink) $(libspadrao) $(proj).obj
$(proj).obj: $(proj).cpp
cl $(opcomp) $(proj).cpp
[end of makefile]
And finally, this is the undesirable output I get from the linker. I
tried using dumpbin in order to find where the missing symbols are
defined, but to no avail.
[beginning of relevant linker output]
quadrado.obj : error LNK2019: unresolved external symbol "long const
std::_BADOFF" (?_BADOFF@std@@3JB) referenced in function "protected:
virtual class std::fpos<int> __thiscall std::basic_streambuf<char,struct
std::char_traits<char> >::seekoff(long,int,int)"
(?seekoff@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MAE
?AV?$fpos@H@2@JHH@Z)
quadrado.obj : error LNK2019: unresolved external symbol "__int64
std::_Fpz" (?_Fpz@std@@3_JA) referenced in function "public: __thiscall
std::fpos<int>::fpos<int>(long)" (??0?$fpos@H@std@@QAE@J@Z)
quadrado.obj : error LNK2019: unresolved external symbol "public: static
class std::locale::id std::ctype<char>::id"
(?id@?$ctype@D@std@@2V0locale@2@A) referenced in function "class
std::ctype<char> const & __cdecl std::use_facet<class std::ctype<char>
>(class std::locale const &)" (??$use_facet@V?$ctype@D@std@@@std@@Y
AABV?$ctype@D@0@ABVlocale@0@@Z)
quadrado.obj : error LNK2019: unresolved external symbol "private:
static int std::locale::id::_Id_cnt" (?_Id_cnt@id@locale@std@@0HA)
referenced in function "public: __thiscall std::locale::id::operator
unsigned int(void)" (??Bid@locale@std@@QAEIXZ)
quadrado.exe : fatal error LNK1120: 4 unresolved externals
[end of relevant linker output]
What is missing in my build setting? Shouldn't msvcprt.lib include the
C++'s IO-related symbols which are said to be missing?
Thank you,
-- Ney André de Mello Zunino
- Next message: Carl Daniel [VC++ MVP]: "Re: Link errors building rather simple application which uses C++ IO facilities"
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