Bug#714923: opencv FTBFS on sparc64
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=714923

opencv uses functions from <ext/atomicity.h>, but it wrongly assumes
this functions apply to an int type. While it is true for some
architectures, some architectures are using a long type there. The
correct type to use is _Atomic_word.

Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>

diff -Nur opencv-2.4.12.3.orig/modules/core/include/opencv2/core/core.hpp opencv-2.4.12.3/modules/core/include/opencv2/core/core.hpp
--- opencv-2.4.12.3.orig/modules/core/include/opencv2/core/core.hpp	2015-10-26 08:56:34.000000000 +0100
+++ opencv-2.4.12.3/modules/core/include/opencv2/core/core.hpp	2016-04-03 00:10:50.455774144 +0200
@@ -1290,7 +1290,7 @@
     operator const _Tp*() const;
 
     _Tp* obj; //< the object pointer.
-    int* refcount; //< the associated reference counter
+    _Atomic_word* refcount; //< the associated reference counter
 };
 
 template<typename T>
@@ -1490,9 +1490,9 @@
 public:
     MatAllocator() {}
     virtual ~MatAllocator() {}
-    virtual void allocate(int dims, const int* sizes, int type, int*& refcount,
+    virtual void allocate(int dims, const int* sizes, int type, _Atomic_word*& refcount,
                           uchar*& datastart, uchar*& data, size_t* step) = 0;
-    virtual void deallocate(int* refcount, uchar* datastart, uchar* data) = 0;
+    virtual void deallocate(_Atomic_word* refcount, uchar* datastart, uchar* data) = 0;
 };
 
 /*!
@@ -1985,7 +1985,7 @@
 
     //! pointer to the reference counter;
     // when matrix points to user-allocated data, the pointer is NULL
-    int* refcount;
+    _Atomic_word* refcount;
 
     //! helper fields used in locateROI and adjustROI
     uchar* datastart;
@@ -3408,7 +3408,7 @@
     {
         Hdr(int _dims, const int* _sizes, int _type);
         void clear();
-        int refcount;
+        _Atomic_word refcount;
         int dims;
         int valueOffset;
         size_t nodeSize;
diff -Nur opencv-2.4.12.3.orig/modules/core/include/opencv2/core/gpumat.hpp opencv-2.4.12.3/modules/core/include/opencv2/core/gpumat.hpp
--- opencv-2.4.12.3.orig/modules/core/include/opencv2/core/gpumat.hpp	2015-10-26 08:56:34.000000000 +0100
+++ opencv-2.4.12.3/modules/core/include/opencv2/core/gpumat.hpp	2016-04-02 23:08:58.116874218 +0200
@@ -301,7 +301,7 @@
 
         //! pointer to the reference counter;
         // when GpuMatrix points to user-allocated data, the pointer is NULL
-        int* refcount;
+        _Atomic_word* refcount;
 
         //! helper fields used in locateROI and adjustROI
         uchar* datastart;
diff -Nur opencv-2.4.12.3.orig/modules/core/include/opencv2/core/operations.hpp opencv-2.4.12.3/modules/core/include/opencv2/core/operations.hpp
--- opencv-2.4.12.3.orig/modules/core/include/opencv2/core/operations.hpp	2015-10-26 08:56:34.000000000 +0100
+++ opencv-2.4.12.3/modules/core/include/opencv2/core/operations.hpp	2016-04-02 23:12:59.148385306 +0200
@@ -2589,7 +2589,7 @@
 {
     if(obj)
     {
-        refcount = (int*)fastMalloc(sizeof(*refcount));
+        refcount = (_Atomic_word*)fastMalloc(sizeof(*refcount));
         *refcount = 1;
     }
     else
@@ -2628,7 +2628,7 @@
 {
     if (this != &_ptr)
     {
-      int* _refcount = _ptr.refcount;
+      _Atomic_word* _refcount = _ptr.refcount;
       if( _refcount )
           CV_XADD(_refcount, 1);
       release();
diff -Nur opencv-2.4.12.3.orig/modules/core/src/gpumat.cpp opencv-2.4.12.3/modules/core/src/gpumat.cpp
--- opencv-2.4.12.3.orig/modules/core/src/gpumat.cpp	2015-10-26 08:56:34.000000000 +0100
+++ opencv-2.4.12.3/modules/core/src/gpumat.cpp	2016-04-02 23:14:38.894804300 +0200
@@ -716,7 +716,7 @@
         datastart = data = static_cast<uchar*>(devPtr);
         dataend = data + nettosize;
 
-        refcount = static_cast<int*>(fastMalloc(sizeof(*refcount)));
+        refcount = static_cast<_Atomic_word*>(fastMalloc(sizeof(*refcount)));
         *refcount = 1;
     }
 }
diff -Nur opencv-2.4.12.3.orig/modules/core/src/matrix.cpp opencv-2.4.12.3/modules/core/src/matrix.cpp
--- opencv-2.4.12.3.orig/modules/core/src/matrix.cpp	2015-10-26 08:56:34.000000000 +0100
+++ opencv-2.4.12.3/modules/core/src/matrix.cpp	2016-04-02 23:59:53.405491031 +0200
@@ -213,7 +213,7 @@
         {
             size_t totalsize = alignSize(step.p[0]*size.p[0], (int)sizeof(*refcount));
             data = datastart = (uchar*)fastMalloc(totalsize + (int)sizeof(*refcount));
-            refcount = (int*)(data + totalsize);
+            refcount = (_Atomic_word*)(data + totalsize);
             *refcount = 1;
         }
         else
@@ -228,7 +228,7 @@
                 allocator = 0;
                 size_t totalSize = alignSize(step.p[0]*size.p[0], (int)sizeof(*refcount));
                 data = datastart = (uchar*)fastMalloc(totalSize + (int)sizeof(*refcount));
-                refcount = (int*)(data + totalSize);
+                refcount = (_Atomic_word*)(data + totalSize);
                 *refcount = 1;
             }
 #else
diff -Nur opencv-2.4.12.3.orig/modules/core/src/system.cpp opencv-2.4.12.3/modules/core/src/system.cpp
--- opencv-2.4.12.3.orig/modules/core/src/system.cpp	2015-10-26 08:56:34.000000000 +0100
+++ opencv-2.4.12.3/modules/core/src/system.cpp	2016-04-02 23:33:19.298905578 +0200
@@ -892,7 +892,7 @@
     void unlock() { LeaveCriticalSection(&cs); }
 
     CRITICAL_SECTION cs;
-    int refcount;
+    _Atomic_word refcount;
 };
 
 #ifndef __GNUC__
@@ -920,7 +920,7 @@
     void unlock() { OSSpinLockUnlock(&sl); }
 
     OSSpinLock sl;
-    int refcount;
+    _Atomic_word refcount;
 };
 
 #elif defined __linux__ && !defined ANDROID && !defined __LINUXTHREADS_OLD__
@@ -935,7 +935,7 @@
     void unlock() { pthread_spin_unlock(&sl); }
 
     pthread_spinlock_t sl;
-    int refcount;
+    _Atomic_word refcount;
 };
 
 #else
@@ -950,7 +950,7 @@
     void unlock() { pthread_mutex_unlock(&sl); }
 
     pthread_mutex_t sl;
-    int refcount;
+    _Atomic_word refcount;
 };
 
 #endif
diff -Nur opencv-2.4.12.3.orig/modules/gpu/include/opencv2/gpu/gpu.hpp opencv-2.4.12.3/modules/gpu/include/opencv2/gpu/gpu.hpp
--- opencv-2.4.12.3.orig/modules/gpu/include/opencv2/gpu/gpu.hpp	2015-10-26 08:56:34.000000000 +0100
+++ opencv-2.4.12.3/modules/gpu/include/opencv2/gpu/gpu.hpp	2016-04-02 23:16:19.737293785 +0200
@@ -125,7 +125,7 @@
     size_t step;
 
     uchar* data;
-    int* refcount;
+    _Atomic_word* refcount;
 
     uchar* datastart;
     uchar* dataend;
diff -Nur opencv-2.4.12.3.orig/modules/ocl/include/opencv2/ocl/ocl.hpp opencv-2.4.12.3/modules/ocl/include/opencv2/ocl/ocl.hpp
--- opencv-2.4.12.3.orig/modules/ocl/include/opencv2/ocl/ocl.hpp	2015-10-26 08:56:34.000000000 +0100
+++ opencv-2.4.12.3/modules/ocl/include/opencv2/ocl/ocl.hpp	2016-04-02 23:18:55.715331443 +0200
@@ -404,7 +404,7 @@
 
             //! pointer to the reference counter;
             // when oclMatrix points to user-allocated data, the pointer is NULL
-            int *refcount;
+            _Atomic_word *refcount;
 
             //! helper fields used in locateROI and adjustROI
             //datastart and dataend are not used in current version
diff -Nur opencv-2.4.12.3.orig/modules/ocl/src/matrix_operations.cpp opencv-2.4.12.3/modules/ocl/src/matrix_operations.cpp
--- opencv-2.4.12.3.orig/modules/ocl/src/matrix_operations.cpp	2015-10-26 08:56:34.000000000 +0100
+++ opencv-2.4.12.3/modules/ocl/src/matrix_operations.cpp	2016-04-02 23:19:23.633128033 +0200
@@ -591,7 +591,7 @@
         datastart = data = (uchar *)dev_ptr;
         dataend = data + nettosize;
 
-        refcount = (int *)fastMalloc(sizeof(*refcount));
+        refcount = (_Atomic_word *)fastMalloc(sizeof(*refcount));
         *refcount = 1;
     }
 }
diff -Nur opencv-2.4.12.3.orig/modules/python/src2/cv2.cpp opencv-2.4.12.3/modules/python/src2/cv2.cpp
--- opencv-2.4.12.3.orig/modules/python/src2/cv2.cpp	2015-10-26 08:56:34.000000000 +0100
+++ opencv-2.4.12.3/modules/python/src2/cv2.cpp	2016-04-02 23:18:34.897991791 +0200
@@ -157,12 +157,12 @@
 static size_t REFCOUNT_OFFSET = (size_t)&(((PyObject*)0)->ob_refcnt) +
     (0x12345678 != *(const size_t*)"\x78\x56\x34\x12\0\0\0\0\0")*sizeof(int);
 
-static inline PyObject* pyObjectFromRefcount(const int* refcount)
+static inline PyObject* pyObjectFromRefcount(const _Atomic_word* refcount)
 {
     return (PyObject*)((size_t)refcount - REFCOUNT_OFFSET);
 }
 
-static inline int* refcountFromPyObject(const PyObject* obj)
+static inline _Atomic_word* refcountFromPyObject(const PyObject* obj)
 {
     return (int*)((size_t)obj + REFCOUNT_OFFSET);
 }
@@ -173,7 +173,7 @@
     NumpyAllocator() {}
     ~NumpyAllocator() {}
 
-    void allocate(int dims, const int* sizes, int type, int*& refcount,
+    void allocate(int dims, const int* sizes, int type, _Atomic_word*& refcount,
                   uchar*& datastart, uchar*& data, size_t* step)
     {
         PyEnsureGIL gil;
@@ -206,7 +206,7 @@
         datastart = data = (uchar*)PyArray_DATA((PyArrayObject*) o);
     }
 
-    void deallocate(int* refcount, uchar*, uchar*)
+    void deallocate(_Atomic_word* refcount, uchar*, uchar*)
     {
         PyEnsureGIL gil;
         if( !refcount )