Sun's new Workshop 5.0 C++ compiler is nearly ANSI-C compliant - unlike the
C++ 4.2 which has been used to date.
the 2D implementation makes significant use of C++
As a consequence it fails to compile with C++ 5.0

There are a few places in the code which need to be updated to be ANSI C++
compliant.
Also the name of the C++ runtime lib has changed, so makefiles need to be
updated.