Fix the C++, Visual Studio 2005 builds.
src/ChangeLog addition:
2010-09-03 Aidan Kehoe <kehoea@parhasard.net>
* symsinit.h: Declare reinit_process_early() here, fixing the C++
build; thank you for pointing this out, Adam Sjogren!
* fontcolor-msw.c (mswindows_string_to_color):
Cast the result of bsearch() to a colormap_t pointer, fixing the
Visual Studio 2005 build.