Compile in the debugging code all the time, but only output debug messages

Compile in the debugging code all the time, but only output debug messages

2000-07-30  Tor Lillqvist  <tml@iki.fi>

	* giowin32.c: Compile in the debugging code all the time, but only
	output debug messages if told so. Add (unadvertised) function to
	turn on/off debug messages for a channel.

	(buffer_read): Don't loop. It is expected behaviour to return a
	short read occasionally, for instance when reading from
	pipes. It's the calling code that should loop if it *knows* how
	much the writer has written.

	* tests/gio-test.c: Correct the program's name in the output.
	(recv_message): Loop calling g_io_channel_read() (in a new
	function read_all()) until we have all the bytes we want (that we
	know the writer has written/will write).