debug channels definitions.
Made win32 the default type for spec files.
Ignore C compiler in winebuild so we can simply pass it $(DEFS).
Removed type win32 and debug_channels from spec files.
Fixed winebuild to always generate correct C identifiers (reported by
Vincent Béron).
Make them compatible with both the Unix C headers and the MSVCRT
headers.
Ensure compatibility with the Unix headers via the USE_WS_PREFIX
macro.
Add WINE_NOWINSOCK: prevents winsock.h from being included from
windows.h when defined.
Add ws2tcpip.h, move definitions to the right header.