building gcc-2.95.2 with libstdc++-2.90.8 library on RH 6.2

building gcc-2.95.2 with libstdc++-2.90.8 library on RH 6.2

[Manjunath H Bhajantri]

Hello all,
  Please help me! I am trying to build gcc version 2.95.2 with
library libstdc++-2.90.8 on my red-hat linux 6.2 pc as one of
my software installation requires that configuration.
  But I am not able to build properly. Because my HelloWorld.cxx " #include
<iostream.h> int main() { cout <<"Hello, World!"<<endl;}" is not compiling,
giving the error /tmp/ccGZV1Sn.o: In function `main':
/tmp/ccGZV1Sn.o(.text+0xa): undefined reference to `endl(ostream &)'
/tmp/ccGZV1Sn.o(.text+0x17): undefined reference to `cout'
/tmp/ccGZV1Sn.o(.text+0x1c): undefined reference to `ostream::operator<<(char
const *)' /tmp/ccGZV1Sn.o(.text+0x27): undefined reference to
`ostream::operator<<(ostream &(*)(ostream &))' collect2: ld returned 1 exit
status                                                                         
                  I guess it is because of some namespace problem.  I searched
in the mailing list and found no help. If anybody has faced the same problem
and solved it please send it to me. TIA, Manjunath. -- 
Manjunath H Bhajantri
Software Engineer.
Phonologies Pvt(India) Ltd.

Re: building gcc-2.95.2 with libstdc++-2.90.8 library on RH 6.2

[Claudio Bley]

>>>>> "Manjunath" == Manjunath H Bhajantri <manjunath@iitbombay.org> writes:

    Manjunath> Hello all, Please help me! I am trying to build gcc
    Manjunath> version 2.95.2 with library libstdc++-2.90.8 on my
    Manjunath> red-hat linux 6.2 pc as one of my software installation
    Manjunath> requires that configuration.  But I am not able to
    Manjunath> build properly. Because my HelloWorld.cxx " #include
    Manjunath> <iostream.h> int main() { cout <<"Hello,
    Manjunath> World!"<<endl;}" is not compiling, giving the error
    Manjunath> /tmp/ccGZV1Sn.o: In function `main':
    Manjunath> /tmp/ccGZV1Sn.o(.text+0xa): undefined reference to
    Manjunath> `endl(ostream &)' /tmp/ccGZV1Sn.o(.text+0x17):
    Manjunath> undefined reference to `cout'
    Manjunath> /tmp/ccGZV1Sn.o(.text+0x1c): undefined reference to
    Manjunath> `ostream::operator<<(char const *)'
    Manjunath> /tmp/ccGZV1Sn.o(.text+0x27): undefined reference to
    Manjunath> `ostream::operator<<(ostream &(*)(ostream &))'
    Manjunath> collect2: ld returned 1 exit status I guess it is
    Manjunath> because of some namespace problem.  I searched in the
    Manjunath> mailing list and found no help. If anybody has faced
    Manjunath> the same problem and solved it please send it to
    Manjunath> me. TIA, Manjunath. -- Manjunath H Bhajantri Software
    Manjunath> Engineer.  Phonologies Pvt(India) Ltd.

May I ask what your command line looks like?

Doesn't 'g++ HelloWorld.cxx' work?

Claudio

RE: building gcc-2.95.2 with libstdc++-2.90.8 library on RH 6.2

[Rupert Wood]

Manjunath H Bhajantri wrote:

> But I am not able to build properly. Because my HelloWorld.cxx
> "#include <iostream.h> int main() { cout <<"Hello, World!"<<endl;}"
> is not compiling, giving the error /tmp/ccGZV1Sn.o: In function
`main':
> /tmp/ccGZV1Sn.o(.text+0xa): undefined reference to `endl(ostream &)'

You're using:

    gcc HelloWorld.cxx

when you should be using:

    g++ HelloWorld.cxx

The g++ compiler driver will automatically link in the necessary C++
libraries.

There are no namespace problems with this code. However, <iostream.h>
has been deprecated in GCC 3.0+ in favour of <iostream> (which defines
everything in the 'std' namespace).

Hope that helps,
Rup.