Header file clean-up:

1. Remove all.h and PC_HEADER junk.
2. Rolled mem.c and mem.h into imports.c and imports.h
3. Include imports.h instead of mem.h
Restore _mesa_create/initialize_context() to be like they were in 4.0.4
New wrappers for a few std C functions: _mesa_atoi(), _mesa_strstr(), etc.

src/mesa/main/state.c

@@ -1,4 +1,4 @@
-/* $Id: state.c,v 1.95 2002/10/16 17:57:52 brianp Exp $ */
+/* $Id: state.c,v 1.96 2002/10/24 23:57:21 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -31,9 +31,6 @@
  */
 
 
-#ifdef PC_HEADER
-#include "all.h"
-#else
 #include "glheader.h"
 #include "accum.h"
 #include "api_loopback.h"
@@ -75,7 +72,6 @@
 
 #include "math/m_matrix.h"
 #include "math/m_xform.h"
-#endif
 
 
 static int