- In graphics_lib.h, this is for compatibility with pure C
applications.
- In graphics_impl.h, this would be needed EVEN if we were
never building app or library with anything other than C++.
It's because dlsym() can only work if you pass it a non-name
mangled symbol. Please see:
http://www.isotton.com/howtos/C++-dlopen-mini-HOWTO/C++-dlopen-mini-HOWTO.html
for futher edetail.
- Comments added to graphics_lib.C, better error message.
svn path=/trunk/boinc/; revision=4829