LinuxQuestions.org - [SOLVED] makefile

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- - makefile (https://www.linuxquestions.org/questions/linux-newbie-8/makefile-891503/)

hello,

i have this make file that i want to use to test hello world:

Code:

CC=        $(shell which ppc_4xx-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 $@

and hello.h:

Code:

#include <iostream.h>

using namespace std;

void hello(){

  cout << "Hello World!";

}

and main.cpp:

Code:

#include <iostream.h>

#include "hello.h"

using namespace std;

int main(){

    hello();

    cout << endl;

    //cout << "The factorial of 5 is " << factorial(5) << endl;

    return 0;

}

i get a lot of message like that:

main.o:/opt/eldk/build/ppc-2008-04-01/work/usr/src/denx/BUILD/crosstool-0.43/build/gcc-4.2.2-glibc-20070515T2025-eldk/powerpc-linux/build-gcc/gcc/crtsavres.S:283: first defined here
collect2: ld returned 1 exit status
make: *** [hello] Erreur 1

i don't understand what's the problem

can any one help me to solve this problem.

thanks an advance

Quote:

CC= $(shell which ppc_4xx-g++)

Are you building this for a machine that is based upon Power PC (processor)? Based upon the error message, it looks like you are invoking a cross compiler (crosstool-0.43).
The error message appears to be a linker message, possibly about duplicate defined symbols. Are you able to compile and link without a makefile?

thank you
i solve the pb

Quote:

i solve the pb

So please share so others may learn?

You also need to mark your thread as SOLVED.

Code:

CC= $(shell which ppc_4xx-g++)

CXXFLAGS=-c++ -Wall

LDFLAGS=

SOURCES=main.cpp hello.h

OBJECTS=$(SOURCES:.c++=.o)

EXECUTABLE=hello



all: $(SOURCES) $(EXECUTABLE)



$(EXECUTABLE): $(OBJECTS)

$(CC) $(LDFLAGS) $(OBJECTS) -o $@



.cpp.o:

$(CC) $(CXXFLAGS) $< -o $@

this the mexfile for ppc.

for the standard library just keep: #include <iostream> without "h"

it works

good luck

Thanks for the update, but you still need to mark as SOLVED.

thanks'.

it's solved.

thanks

Yes and if you go to Thread Tools at the top of the page and mark it as such it will advise everyone that it is SOLVED.