New function, parallel to ensure_stdout_valid(). #defined as empty on

New function, parallel to ensure_stdout_valid(). #defined as empty on

2003-01-01  Tor Lillqvist  <tml@iki.fi>

	* glib/gmessages.c (ensure_stderr_valid): New function, parallel
	to ensure_stdout_valid(). #defined as empty on Unix.
	(mklevel_prefix): Do use either stderr or stdout on Windows,
	too. Otherwise g_warning() messages (that are just warnings, by
	definition) will get mixed with proper stdout output. Noticed in
	GIMP's gimpconfig-dump.
	(strdup_convert, mklevel_prefix, g_printerr): Call
	ensure_stderr_valid() before trying to use stderr.
	(g_logv): [Win32] Convert message to current codepage before
	display with MessageBox().