Replace 'pointer' type with 'void *'

This lets us stop using the 'pointer' typedef in Xdefs.h as 'pointer'
is used throughout the X server for other things, and having duplicate
names generates compiler warnings.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

exa/exa_classic.c

@@ -147,7 +147,7 @@ exaCreatePixmap_classic(ScreenPtr pScreen, int w, int h, int depth,
 Bool
 exaModifyPixmapHeader_classic(PixmapPtr pPixmap, int width, int height,
                               int depth, int bitsPerPixel, int devKind,
-                              pointer pPixData)
+                              void *pPixData)
 {
     ScreenPtr pScreen;
     ExaScreenPrivPtr pExaScr;