[phobos] simplified failure on OSX

[Andrei Alexandrescu]

I reduced the failure to this:

cd /my/druntime/dir
gcc -c src/rt/critical.c -oobj/critical.o
dmd -lib -oflib/libdruntime.a obj/critical.o

That's it! I get:

Error: corrupt object module obj/critical.o 13

I don't know even where the 13 is coming from!


Andrei