Deuce's support for FLTK cross-platform C/C++ GUI framework.

src/uifc/uifc.h

@@ -336,4 +336,8 @@ int uifcini(uifcapi_t*);	/* Original implementation based on conio		*/
 int uifcinix(uifcapi_t*);	/* Standard I/O implementation					*/
 int uifcinic(uifcapi_t*);	/* Unix curses implementation (by Deuce)		*/
 int uifcinid(uifcapi_t*);	/* Unix libdialog implementation (by Deuce)		*/
+#ifdef __cplusplus
+extern "C"
+#endif
+int uifcinifltk(uifcapi_t*);	/* FLTK implementation (by Deuce)			*/
 /****************************************************************************/