GCC 3.0.2: errno conflict.

["Maxim Dementiev" <max at e-soft dot ru>]

Excuse me if this bug is wellknown for peaple.
This code copile with error by g++ 3.0.2 on Linux 2.2.19 (i386).
(See commented line below.)
If rename "errno" to "errno1" - all works fine.
Is it a bug?

======== start ========
namespace mpd
{

class ErrnoException
{
public:
    ErrnoException( const char * const a,
                    const int l,
                    const int r,
                    const int e ) throw() :
        file( a ), line( l ), retval( r ), errno( e ) { }

    const char * const file;
    const int line; 
    const int retval; 
    const int errno;
};

}

#include <iostream>

using ::std::cout;
using ::std::endl;
using ::mpd::ErrnoException;


void func( const int a ) throw( ErrnoException )
{
    if( a == 2 ) throw ErrnoException( __FILE__, __LINE__, 0, 2 );
    return;
}


int main( int n, char ** a )
{
  for( int i=1; i<4; i++ )
    try
    {
        func( i );
        cout << i << endl;
    }
    catch( ErrnoException e )
    {
        cout << "Exception in file " << e.file << " at line #" << e.line <<
                ", errno = " << e.errno << "." << endl; // <-- error!
    }

    return 0;
}
======== end ========


Maxim Dementiev.