http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48961
--- Comment #7 from Tobias Burnus <burnus at gcc dot gnu.org> 2011-05-14 11:52:34 UTC --- EXECUTE_COMMAND_LINE(WAIT=.false.) now should no longer fail on systems without fork(). Remains to do: Implement asynchronous execution on MinGW, cf. attachment 24228.