In function `main':: undefined reference to ...

[Graf László <graf dot laszlo at axis dot hu>]

Hi Gurus,

I am Laszlo from Hungary.
Please, take a look at these files:

--- The main file ---------------------------------------------------------------------
	#include "stdio.h"
	#include "stdlib.h"
	#include "string.h"
	#include "base.h"
	
	int main(int argc, char* argv[])
	{
		system("clear");
		Base* b = new Base();
		printf("\n---------- %s ---------------\n", b->toString());
		delete b;
		return 0;
	}//main

--- The base.h file ---------------------------------------------------------------------
	#ifndef __BASE
		#define __BASE
		class Base{
			private:
				char* _str;

			public:
				Base();
				Base(Base &);
				~Base();

				char* toString();
				char* toHtml();
		};
	#endif

--- The base.c file ---------------------------------------------------------------------
	#include "base.h"
	using namespace std;

	Base::Base(Base &s){
	}

	Base::~Base(){
	}

	char* Base::toString()
	{
		char* rv = "this is the toString()";
		return rv;
	}

	char* Base::toHtml()
	{
		char* rv = "this is the toHtml()";
		return rv;
	}

--- The Makefile file ---------------------------------------------------------------------
	compile :
		g++ -c base.c -o base.o
		g++ axf.c -o axf.o
	
	clear :
		clear
		
	clean :
		rm *.o
	
	run :
		./axf.o

--------------------------------------------------------------------------------------------
After the command
	
   make clear clean compile run

I got these error messages:

	rm *.o
	g++ -c base.c -o base.o
	g++ axf.c -o axf.o

	/tmp/cc2K7HjB.o(.text+0x4a): In function `main':
	: undefined reference to `Base::Base[in-charge]()'

	/tmp/cc2K7HjB.o(.text+0x88): In function `main':
	: undefined reference to `Base::toString()'
	
	/tmp/cc2K7HjB.o(.text+0xaf): In function `main':
	: undefined reference to `Base::~Base [in-charge]()'
	collect2: ld returned 1 exit status

	make: *** [compile] Error 1

Could somebody tell me what is wrong there?
Thank you.
--
László Graf