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Sep 20th, 2013
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  1. -bash-3.2$ cat foo.c
  2. #include <sys/socket.h>
  3.  
  4. extern ssize_t recvfrom(int s, void *buf, size_t len, int flags, struct sockaddr *from, socklen_t *fromlen);
  5.  
  6. int main()
  7. {
  8. int s, flags; void *buf; size_t len; struct sockaddr *from; socklen_t* fromlen;
  9. return(recvfrom(s, buf, len, flags, from, fromlen));
  10. }
  11.  
  12. -bash-3.2$ gcc -Wp,-D_FORTIFY_SOURCE=2 -O2 -D_GNU_SOURCE=1 foo.c
  13. In file included from /usr/include/sys/socket.h:251:0,
  14. from foo.c:1:
  15. foo.c: In function 'main':
  16. /usr/include/bits/socket2.h:65:1: error: inlining failed in call to always_inline 'recvfrom': mismatched arguments
  17. recvfrom (int __fd, void *__restrict __buf, size_t __n, int __flags,
  18. ^
  19. foo.c:8:3: error: called from here
  20. return(recvfrom(s, buf, len, flags, from, fromlen));
  21. ^
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