gistfile1.txt

Here is weakmaina.c:

#include <stdio.h>

int main(int argc, char **argv)  __attribute__((weak, alias("maina")));

int maina(int argc, char **argv) {
  printf("in A main\n");
  return 0;
}

Here is weakmainb.c:

#include <stdio.h>

int main(int argc, char **argv)  __attribute__((weak, alias("mainb")));

int mainb(int argc, char **argv) {
  printf("in B main\n");
  return 0;
}


kragen@inexorable:~/devel$ gcc -c weakmaina.c
kragen@inexorable:~/devel$ gcc -c weakmainb.c
kragen@inexorable:~/devel$ gcc weakmaina.o weakmainb.o -o a-first
kragen@inexorable:~/devel$ gcc weakmainb.o weakmaina.o -o b-first
kragen@inexorable:~/devel$ ./a-first
in A main
kragen@inexorable:~/devel$ ./b-first
in B main
kragen@inexorable:~/devel$