g++ 2.95.2/AIX 4.3 fails to implicitly instantiate explicitly initialized static POD data of a class template

[Martin Sebor <sebor at roguewave dot com>]

Hi,

g++ 2.95.2 doesn't implicitly instantiate S<char>::b below on IBM AIX
4.3 and DEC OSF1 5.0. Removing the explicit initializer or explicitly
instantiating the template works. I have reported this issue separately
for g++ on DEC OSF (Tru64) but I don't think it ever made it into GNATS,
nor did I receive a response, but I guess that's because g++ is not
supported on Tru64.

Thanks
Martin


$ cat test.cpp

template <class T>
struct S
{
    static T a;
    static T b;
};

template <class T>
T S<T>::a;        // <-- NOT initialized

template <class T>
T S<T>::b = 0;    // <-- explicitly initialized

int main ()
{
    return S<char>::a + S<char>::b;
}


$ g++ foo.cpp
ld: 0711-317 ERROR: Undefined symbol: S<char>::b
ld: 0711-345 Use the -bloadmap or -bnoquiet option to obtain more
information.
collect2: ld returned 8 exit status

$ uname -a
AIX elway 3 4 000677664C00