[Cppunit-devel] linker errors

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CPPUnit developers:

Sorry if this isn't the right forum for asking for support, but if it is,
could you please help???

I just downloaded ver. 1.8.0 of CppUnit, followed the directions for running
the HostApp examples, and everything worked fine.  On a Win32 platform with
Visual C++ 6.0, I then attempted to use the TestRunner Gui (as per the
INSTALL-WIN32.txt instructions), but I get linker errors as follows:

Linking...
msvcprtd.lib(MSVCP60D.dll) : error LNK2005: "public: __thiscall
std::basic_string<char,struct std::char_traits<char>,class
std::allocator<char> >::basic_string<char,struct
std::char_traits<char>,class std::allocator<char> >(class
basic_string<char,struct std::char_traits<char>,class std::allocator<char>
>::basic_string<char,struct std::char_traits<char>,class
std::allocator<char> > const &)"
(??0?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAE@ABV01@@
Z) already defined in Employ1Test.obj

Since I'm a C++ newbie, I'd just like to know where I should be looking for
problems.  Source code included below:

//__________________________Employ1Test.h_________________________
#ifndef _EMPLOYTEST_H
#define _EMPLOYTEST_H

#include <cppunit/TestCase.h>
#include <cppunit/extensions/HelperMacros.h>

class Employ1Test : public CppUnit::TestCase
{
  CPPUNIT_TEST_SUITE( Employ1Test );
  CPPUNIT_TEST( testCreateEmployee );
  CPPUNIT_TEST( testGetEmployeeName );
  CPPUNIT_TEST_SUITE_END();
protected:
    void testCreateEmployee( void );
    void testGetEmployeeName( void );
};


#endif // _EMPLOYTEST_H

//__________________________Employ1Test.cpp_________________________
#include "Employ1Test.h"
#include "Employ1.h"

CPPUNIT_TEST_SUITE_REGISTRATION( Employ1Test );

//simply verifies the constuctors don't crash the app
void Employ1Test::testCreateEmployee( void )
{
	Employee *e1 = new Employee("Susan","Baker");
	Employee *e2 = new Employee("Robert","Jones");
  CPPUNIT_ASSERT( (int)e2->getCount == (int)2);
}

//verifies the constructors set the properties as expected, and that we can
retrieve the values
void Employ1Test::testGetEmployeeName( void )
{
	Employee *e1 = new Employee("Susan","Baker");
	Employee *e2 = new Employee("Robert","Jones");
	CPPUNIT_ASSERT( e1->getFirstName() == "Susan" );
}

//__________________________Employ1.h_________________________
#ifndef EMPLOY1_H
#define EMPLOY1_H

class Employee
{
public:
	Employee(const char*, const char*); //constructor
	~Employee(); //destructor
	const char *getFirstName() const;
	const char *getLastName() const;

	//static member function
	static int getCount();

private:
	char *firstName;
	char *lastName;

		//static data member
		static int count;
};

#endif

//__________________________Employ1.cpp_________________________
#include <iostream>

using std::cout;
using std::endl;

#include <cstring>
#include <cassert>
#include "employ1.h"

int Employee::count = 0;

int Employee::getCount() {return count;}

Employee::Employee(const char *first, const char *last)
{
	firstName = new char[strlen(first) + 1];
	assert(firstName != 0);
	strcpy(firstName, first);

	lastName = new char[strlen(last) + 1];
	assert(lastName != 0);
	strcpy(lastName, last);

	++count;
	cout << "Employee constructor for " << firstName <<
		' ' << lastName << " called." << endl;

}

Employee::~Employee()
{
	cout << "~Employee() called for " << firstName <<
		' ' << lastName << "." << endl;
	delete [] firstName;
	delete [] lastName;
	--count;
}

const char *Employee::getFirstName() const
{ return firstName; }

const char *Employee::getLastName() const
{ return lastName; }