I have an c++ application which uses ifstream.close() like this:
----------
#include <string>
#include <iostream>
using namespace std;
void readMainConfig ()
{
ifstream *config = new ifstream("x.cfg");
...
config->close();
delete config;
}
----------
cygwin can compile the .cpp files but when linking everything together,
always "undefined reference" messages appear for the line with close():
----------g++ -mno-cygwin -w -march=i686 -Dstricmp=strcasecmp -Dstrcmpi=strcasecmp -I"./someDir" -c -o x1.o x1.cpp
... g++ -mno-cygwin -fPIC -shared -o xxx_i686.dll x1.o x2.o x3.o ... -lm x1.o: In function `_Z14readMainConfigv':x1.cpp:9: undefined reference to `std::basic_ifstream<char, std::char_traits<char> >::_close()'
----------When I use the -O2 g++ option, things go worse. Then "new ifstream("x.cfg")" causes undefined references to _open(...).
Under linux everything compiles fine without any substantial change, just the compile & link flags are different.
I am using the most current version of all cygwin packages. What am I doing wrong?
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