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
         }