This patch is for gr_osview on SuSE 8.2, to have it compile and
run with libstdc++ 5.0.3. In this version, the newer form of
include files for c++ (without .h extension) and the C header
includes for C++ (such as cctype, cstdlib, etc) are in use.
It makes it compile and run, but some more work needs to be
done because of the strstream class, which is obsolete, but used