Windows and linux FBO make current fix

la_tns_kernel.c

@@ -144,7 +144,11 @@ void tnsContextMakeWindowCurrent(laWindow* w){
 }
 #else
 void tnsContextMakeFBOCurrent(tnsOffscreen* off){
+#ifdef _WIN32
     tnsContextMakeCurrent(off->FboContext,off->FboDC,0);
+#else
+    tnsContextMakeCurrent(off->FboContext,off->FboWindow,0);
+#endif
 }
 void tnsContextMakeWindowCurrent(laWindow* w){
     tnsContextMakeCurrent(w->glc,w->win,0);