Fix some compilation errors and warnings.

modules/ocl/src/imgproc.cpp

@@ -1727,6 +1727,9 @@ static void convolve_run_fft(const oclMat &image, const oclMat &templ, oclMat &r
 
 #else
     CV_Error(CV_StsNotImplemented, "OpenCL DFT is not implemented");
+#define UNUSED(x) (void)(x);
+    UNUSED(image) UNUSED(templ) UNUSED(result) UNUSED(ccorr) UNUSED(buf)
+#undef UNUSED
 #endif
 }
 static void convolve_run(const oclMat &src, const oclMat &temp1, oclMat &dst, String kernelName, const char **kernelString)

modules/ocl/src/match_template.cpp

@@ -112,6 +112,9 @@ namespace cv
             else
                 return false;
 #else
+#define UNUSED(x) (void)(x);
+            UNUSED(method) UNUSED(depth) UNUSED(size)
+#undef  UNUSED
             return true;
 #endif
         }

modules/ocl/src/opencl/imgproc_mulAndScaleSpectrums.cl

@@ -55,7 +55,7 @@ inline cfloat conjf(cfloat a)
 }
 
 __kernel void
-    mulAndScaleSpectrumsKernel(
+mulAndScaleSpectrumsKernel(
     __global const cfloat* a,
     __global const cfloat* b,
     float scale,
@@ -63,7 +63,7 @@ __kernel void
     uint cols,
     uint rows,
     uint mstep
-    )
+)
 {
     const uint x = get_global_id(0);
     const uint y = get_global_id(1);
@@ -75,7 +75,7 @@ __kernel void
     }
 }
 __kernel void
-    mulAndScaleSpectrumsKernel_CONJ(
+mulAndScaleSpectrumsKernel_CONJ(
     __global const cfloat* a,
     __global const cfloat* b,
     float scale,
@@ -83,7 +83,7 @@ __kernel void
     uint cols,
     uint rows,
     uint mstep
-    )
+)
 {
     const uint x = get_global_id(0);
     const uint y = get_global_id(1);