Makefile: Error1

Question

I have a very simple c programme:

int main()
{
  return(1);
}

and a simple Makefile:

all:
    gcc -ansi -pedantic -o tmp tm         


        

Answer 1

This is because your program is returning 1.

Makes does the compilation using gcc, which goes fine (returns 0) so it proceeds with the execution, but your program return a non-zero value, so make reports this as an error.

A program on successful completion should return 0 and return a non-zero value otherwise.