Revert "dix: unexport AllocColor()"

libwfb.so has a reference to this function:

 $ nm -D ./build.debug/hw/xfree86/dixmods/libwfb.so | grep AllocColor
                  U AllocColor

This reverts commit b48e4a9cb7.

Signed-off-by: Aaron Plattner <aplattner@nvidia.com>

dix/colormap_priv.h

@@ -33,9 +33,6 @@ int TellGainedMap(WindowPtr pwin, void *value);
 
 int CopyColormapAndFree(Colormap mid, ColormapPtr pSrc, int client);
 
-int AllocColor(ColormapPtr pmap, unsigned short *pred, unsigned short *pgreen,
-               unsigned short *pblue, Pixel *pPix, int client );
-
 void FakeAllocColor(ColormapPtr pmap, xColorItem *item);
 
 void FakeFreeColor(ColormapPtr pmap, Pixel pixel);

fb/fbcmap_mi.c

@@ -30,9 +30,6 @@
 #include <dix-config.h>
 
 #include <X11/X.h>
-
-#include "dix/colormap_priv.h"
-
 #include "fb.h"
 #include "micmap.h"
 

include/colormap.h

@@ -55,6 +55,13 @@ SOFTWARE.
 
 typedef CARD32 Pixel;
 
+extern _X_EXPORT int AllocColor(ColormapPtr /*pmap */ ,
+                                unsigned short * /*pred */ ,
+                                unsigned short * /*pgreen */ ,
+                                unsigned short * /*pblue */ ,
+                                Pixel * /*pPix */ ,
+                                int /*client */ );
+
 extern _X_EXPORT Bool ResizeVisualArray(ScreenPtr /* pScreen */ ,
                                         int /* new_vis_count */ ,
                                         DepthPtr /* depth */ );