Internal error in static cast of templated function

[Carl Kumaradas <ckumarad at oci dot utoronto dot ca>]

For the following file:

#include <vector>
#include <numeric>
#ifdef INC_FUNCTIONAL
#include <functional>
#endif

template<class R> int p( int val, R& r )
{
   return val + r;
}

template<class R> void f( vector<R>& v )
{
#ifdef USE_STATIC_CAST
   accumulate( v.begin(), v.end(), 0, static_cast<int (*)(int, R&)>(p) );
#else
   accumulate( v.begin(), v.end(), 0, p<R> );
#endif
}

main()
{
   vector<int> r;
   f( r );
}

I get the following errors (the last one would be a real bug I guess):

kelvin:~/tmp > g++ test_num.cc
test_num.cc: In function `void f<int>(class vector<int,__default_alloc_template<false,0> > &)':
test_num.cc:17: no matching function for call to `accumulate (int *, int *, int, {unknown type})'
kelvin:~/tmp > g++ -DINC_FUNCTIONAL test_num.cc
test_num.cc: In function `void f<int>(class vector<int,__default_alloc_template<false,0> > &)':
test_num.cc:17: no matching function for call to `accumulate (int *, int *, int, {unknown type})'
kelvin:~/tmp > g++ -DUSE_STATIC_CAST test_num.cc
test_num.cc: In function `void f<int>(class vector<int,__default_alloc_template<false,0> > &)':
test_num.cc:15: cannot resolve overloaded function `p' based on non-function type
kelvin:~/tmp > g++ -DINC_FUNCTIONAL -DUSE_STATIC_CAST test_num.cc
test_num.cc: In function `void f<int>(class vector<int,__default_alloc_template<false,0> > &)':
test_num.cc:15: Internal compiler error.
test_num.cc:15: Please submit a full bug report to `egcs-bugs@cygnus.com'.
kelvin:~/tmp > g++ -v
Reading specs from /usr/unsup/lib/gcc-lib/i686-pc-linux-gnu/egcs-2.90.16/specs
gcc version egcs-2.90.16 971105 (gcc2-970802 experimental)

Line 15 is the 1st line with "accumulate()" and line 17 is the 2nd.

Is the static cast correct?  Should the explict template parameter
(p<R>) work.  I get the internal error only when I include
<functional> (I included it by mistake).

With SGI IRIX CC v7.1 plus STL 3.0 (from SGI), it compiles fine for
the static cast case regardless of if <functional> is included.

Any ideas on how I can get this to compile with the currect egcs?

Thanks fro any help,
Carl.
-- 
J. Carl Kumaradas                           Ontario Cancer Institute
ckumarad@oci.utoronto.ca                    University of Toronto