fix build under newer KConfig by bump cmake min version

3rdparty/lexilla540/lexilla/examples/CheckLexilla/makefile

@@ -0,0 +1,22 @@
+.PHONY: all check clean
+
+INCLUDES = -I ../../include
+EXE = $(if $(windir),CheckLexilla.exe,CheckLexilla)
+
+ifdef windir
+	RM = $(if $(wildcard $(dir $(SHELL))rm.exe), $(dir $(SHELL))rm.exe -f, del /q)
+	CC = gcc
+else
+	LIBS += -ldl
+endif
+
+all: $(EXE)
+
+check: $(EXE)
+	./$(EXE)
+
+clean:
+	$(RM) $(EXE)
+
+$(EXE): *.c
+	$(CC) $(INCLUDES) $(CPPFLAGS) $(CFLAGS) $^ $(LIBS) $(LDLIBS) -o $@