Linux

 CC=    $(shell which ppc_4xx-gcc) 
#CC=g++    
CXXFLAGS=-cpp -Wall    
LDFLAGS=    
SOURCES=main.cpp hello.h    
OBJECTS=$(SOURCES:.cpp=.o)    
EXECUTABLE=hello    

all: $(SOURCES) $(EXECUTABLE)    
    
$(EXECUTABLE): $(OBJECTS)    
    $(CC) $(LDFLAGS) $(OBJECTS) -o $@    

.cpp.o:
    $(CC) $(CXXFLAGS) $< -o $@

#include <iostream.h>
#include "hello.h"
using namespace std;
int main(){
    hello();
    cout << endl;
    
    return 0;
}

#include <iostream.h>
using namespace std;

void hello(){
   cout << "Hello World!";
}

main.cpp:(.text+0x21a): undefined reference to `std::cout'

CC=    $(shell which ppc_4xx-g++) 
#CC=g++    
CXXFLAGS=-cpp -Wall    
LDFLAGS=-arch ppc    
SOURCES=main.cpp hello.h    
OBJECTS=$(SOURCES:.cpp=.o)    
EXECUTABLE=hello    

all: $(SOURCES) $(EXECUTABLE)    
    
$(EXECUTABLE): $(OBJECTS)    
    $(CC) $(LDFLAGS) $(OBJECTS) -o $@    

.cpp.o:
    $(CC) $(CXXFLAGS) $< -o $@

ppc_4xx-g++: unrecognized option '-cpp'
In file included from /home/opt/eldk_4.2/ppc_4xx/usr/include/c++/4.2.2/backward/iostream.h:31,
                 from main.cpp:1: