Added SDL_GetDisplayUsableBounds().

test/Makefile.in

@@ -14,6 +14,7 @@ TARGETS = \
 	testatomic$(EXE) \
 	testaudioinfo$(EXE) \
 	testautomation$(EXE) \
+	testbounds$(EXE) \
 	testdraw2$(EXE) \
 	testdrawchessboard$(EXE) \
 	testdropfile$(EXE) \
@@ -270,6 +271,9 @@ testmessage$(EXE): $(srcdir)/testmessage.c
 testdisplayinfo$(EXE): $(srcdir)/testdisplayinfo.c
 	$(CC) -o $@ $^ $(CFLAGS) $(LIBS)
 
+testbounds$(EXE): $(srcdir)/testbounds.c
+	$(CC) -o $@ $^ $(CFLAGS) $(LIBS)
+
 controllermap$(EXE): $(srcdir)/controllermap.c
 	$(CC) -o $@ $^ $(CFLAGS) $(LIBS)