[Bug driver/49371] xgcc: error: unrecognized option '-pie' on *-apple-darwin*

[dominiq at lps dot ens.fr]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49371

--- Comment #4 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2011-06-11 
16:22:20 UTC ---
What is the meaning of %{fpie:-pie} in gcc/config/darwin.h?