Programming

#include <iostream>
using namespace std;
extern "C" int  clnt(int);
int main(int argc, char *argv[])
{
  int   x = argv[1] ? atoi(argv[1]) : 100;
  int   y = 0;
        y = clnt(x);
        cout << y;
        return 0;
}

int clnt(int x)
{
  int   y = 0;
        y = (x < 0) ? x * x : x + x;
        return(y);
}

CFLAGS          = -g
CPPFLAGS        = -Wall -ansi -g
OBJS            = main.o client.o
tester: $(OBJS)
        $(CC) -o $@ $(OBJS)

g++  -Wall -ansi -g  -c -o main.o main.cpp
cc -g -Wall -ansi -g  -c -o client.o client.c
cc -o tester main.o client.o
main.o: In function `std::__verify_grouping(char const*, unsigned int, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)':
/usr/include/c++/4.2/bits/locale_facets.tcc:2562: undefined reference to `std::basic_string<char, std::char_traits<char>, std::allocator<char> >::size() const'
/usr/include/c++/4.2/bits/locale_facets.tcc:2571: undefined reference to `std::basic_string<char, std::char_traits<char>, std::allocator<char> >::operator[](unsigned int) const'
/usr/include/c++/4.2/bits/locale_facets.tcc:2573: undefined reference to `std::basic_string<char, std::char_traits<char>, std::allocator<char> >::operator[](unsigned int) const'
/usr/include/c++/4.2/bits/locale_facets.tcc:2578: undefined reference to `std::basic_string<char, std::char_traits<char>, std::allocator<char> >::operator[](unsigned int) const'
main.o: In function `__static_initialization_and_destruction_0':
/usr/include/c++/4.2/iostream:77: undefined reference to `std::ios_base::Init::Init()'
main.o: In function `__tcf_0':
/usr/include/c++/4.2/iostream:77: undefined reference to `std::ios_base::Init::~Init()'
main.o: In function `main':
/home/mgurfink/mydev/amq/cms/main.cpp:12: undefined reference to `std::cout'
/home/mgurfink/mydev/amq/cms/main.cpp:12: undefined reference to `std::basic_ostream<char, std::char_traits<char> >::operator<<(int)'
main.o:(.eh_frame+0x11): undefined reference to `__gxx_personality_v0'
collect2: ld returned 1 exit status
make: *** [tester] Error 1

CC = g++
CFLAGS          = -g
CPPFLAGS        = -Wall -ansi -g
OBJS            = main.o client.o
tester: $(OBJS)
        $(CC) -o $@ $(OBJS)
main.o: main.cpp
        $(CC) -c $<
client.o: client.c
        gcc -c $<

g++  -Wall -ansi -g  -c -o main.o main.cpp
cc -g -Wall -ansi -g  -c -o client.o client.c
g++ -o tester main.o client.o

 
cc -g -c client.o client.c

CFLAGS          = -g
CPPFLAGS        = -Wall -ansi -g
OBJ1            = main.o client.o
tester: $(OBJ1) 
        $(CXX) -o $@ $(OBJ1)

client.c  main.cpp

g++  -Wall -ansi -g  -c -o main.o main.cpp
cc -g -Wall -ansi -g  -c -o client.o client.c
g++ -o tester main.o client.o

CXX      = g++
CXXFLAGS = -Wall -ansi -g
CC       = gcc
CCFLAGS  = -g
OBJS     = main.o client.o

tester : $(OBJS)
        $(CXX) -o $@ $(OBJS)

%.o : %.cpp
        $(CXX) -c $(CXXFLAGS) $<

%.o : %.c
        $(CC) -c $(CCFLAGS) $<