2004-05-27  Alexander Gottwald  <ago@freedesktop.org>

	* glwindows.h: write current function and line in debug output
	* indirect.c: moved actual setup and creation of windows GL context to 
	glWinCreateContextReal. 
	* indirect.c (glWinCreateContext): Deferred context creation to attach.   
	* indirect.c (glWinMakeCurrent): Check if context is NULL. Fixes segfault.