[PATCH] dix: make RegionInit legal C++

[Adam Jackson]

The CVE fix in:

    commit 97015a07b9e15d8ec5608b95d95ec0eb51202acb
    Author: Alan Coopersmith <alan.coopersmith at oracle.com>
    Date:   Wed Jan 22 22:37:15 2014 -0800

        dix: integer overflow in RegionSizeof() [CVE-2014-8092 3/4]

offended the C++ demons:

../../include/regionstr.h:147:45: error: invalid conversion from 'void*' to
'pixman_region16_data_t* {aka pixman_region16_data*}' [-fpermissive]

Normally this isn't a problem, because around here we have the sense and
common decency to not use C++, but this does make tigervnc fail to build,
which is a little rude of us.

Signed-off-by: Adam Jackson <ajax at redhat.com>
---
 include/regionstr.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/regionstr.h b/include/regionstr.h
index 079375d..1032358 100644
--- a/include/regionstr.h
+++ b/include/regionstr.h
@@ -144,7 +144,7 @@ RegionInit(RegionPtr _pReg, BoxPtr _rect, int _size)
         size_t rgnSize;
         (_pReg)->extents = RegionEmptyBox;
         if (((_size) > 1) && ((rgnSize = RegionSizeof(_size)) > 0) &&
-            (((_pReg)->data = malloc(rgnSize)) != NULL)) {
+            (((_pReg)->data = (RegDataPtr) malloc(rgnSize)) != NULL)) {
             (_pReg)->data->size = (_size);
             (_pReg)->data->numRects = 0;
         }
-- 
2.1.0