fix build under newer KConfig by bump cmake min version

3rdparty/lexilla540/lexilla/examples/SimpleLexer/makefile

@@ -0,0 +1,46 @@
+.PHONY: all check clean
+
+INCLUDES = -I ../../../scintilla/include -I ../../include -I ../../lexlib
+
+BASE_FLAGS += --std=c++17
+
+ifdef windir
+    SHAREDEXTENSION = dll
+else
+    ifeq ($(shell uname),Darwin)
+        SHAREDEXTENSION = dylib
+        BASE_FLAGS += -arch arm64 -arch x86_64
+        LINK_FLAGS += -dynamiclib
+    else
+        BASE_FLAGS += -fPIC
+        SHAREDEXTENSION = so
+    endif
+    BASE_FLAGS += -fvisibility=hidden
+endif
+
+ifdef windir
+	RM = $(if $(wildcard $(dir $(SHELL))rm.exe), $(dir $(SHELL))rm.exe -f, del /q)
+	CXX = g++
+endif
+
+LIBRARY = SimpleLexer.$(SHAREDEXTENSION)
+
+vpath %.cxx ../../lexlib
+ 
+LEXLIB_SOURCES := $(sort $(notdir $(wildcard ../../lexlib/*.cxx)))
+LEXLIB = $(LEXLIB_SOURCES:.cxx=.o)
+
+%.o: %.cxx
+	$(CXX) $(INCLUDES) $(BASE_FLAGS) $(CPPFLAGS) $(CXXFLAGS) -c $< -o $@
+
+all: $(LIBRARY)
+
+# make check requires CheckLexilla to have already been built
+check: $(LIBRARY)
+	../CheckLexilla/CheckLexilla ./$(LIBRARY)
+
+clean:
+	$(RM) *.o *obj *.lib *.exp $(LIBRARY)
+
+$(LIBRARY): $(LEXLIB) *.cxx
+	$(CXX) $(INCLUDES) $(LINK_FLAGS) $(BASE_FLAGS) -shared $(CPPFLAGS) $(CXXFLAGS) $^ $(LIBS) $(LDLIBS) -o $@