fixed compilation with latest master changes

modules/softcascade/src/softcascade_init.cpp

@@ -63,4 +63,22 @@ bool initModule_softcascade(void)
     return (sc1->info() != 0) && (sc->info() != 0);
 }
 
+namespace internal {
+void error(const char *error_string, const char *file, const int line, const char *func)
+{
+    int code = CV_GpuApiCallError;
+
+    if (std::uncaught_exception())
+    {
+        const char* errorStr = cvErrorStr(code);
+        const char* function = func ? func : "unknown function";
+
+        std::cerr << "OpenCV Error: " << errorStr << "(" << error_string << ") in " << function << ", file " << file << ", line " << line;
+        std::cerr.flush();
+    }
+    else
+        cv::error( cv::Exception(code, error_string, func, file, line) );
+}
+}
+
 } }