I'm new to Linux (Kubuntu) and I'm just writing my first program (in C++) for Linux but for some reason I can't debug it.

So to test it I've tried to make a Hello World! program i plain C and this works fine, but if I change the file extension to *.cpp and compiles i again the debugger apparently can't find any symbolic information.
Whats going on?

My code:
#include <stdio.h>

int main(int argc, char *argv[])
{
printf("Hello, world!\n");;
return 1;
}

My Makefile:
CC=g++
NAME=hello
OBJS= helloworld.o
CFLAGS= -g -o0
LDFLAGS=
$(NAME): $(OBJS)
$(CC) $(CFLAGS) -o $(NAME) $(OBJS) $(LDFLAGS)

After compiling I run gdb ("gdb hello") and do a list on main.
With the *.c file this works fine and I get a listing of the source but with the *.cpp file I get this: "No line number known for main."

When you compile a .c file, make uses the CFLAGS variable, when you compile a .cc file make uses the CXXFLAGS variable. Since you didn't set that g++ didn't get the -g flag when compiling.

Do'h

Works now. Thankt a lot!