Mail Archives: cygwin/1998/11/30/03:12:52
Allan Peda <allan AT interport DOT net> writes:
>
> I am not having success invoking g++ via gcc. Rather than describe
> it... take a look:
Then don't! Here's a simple formula that works: Link C programs with
gcc; link C++ programs with c++ or g++ (which are the same thing)
to get the C++ runtime libraries automatically linked in; link f77
programs with g77.
If you want to do anything else, then you have to figure out the runtime
libraries needed for each language and provide them yourself. (Hint: C++
programs usually need -lstdc++).
> bash-2.02$ ./hellocc
> hello C++ GNUish world!
> bash-2.02$ rm ./hellocc.exe
> bash-2.02$ gcc -x "c++" hellocc.cxx -o hellocc
> C:\TEMP\cccQV0Xf.o(.text+0x2a):hellocc.cc: undefined reference to `cout'
>
> C:\TEMP\cccQV0Xf.o(.text+0x2f):hellocc.cc: undefined reference to
> `ostream::oper
> ator<<(char const *)'
The above should give you the clue needed. You misunderstand the implication
of "-x c++" option.
Nothing bizarre here. It's expected and documented behaviour.
Regards,
Mumit
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