The zip file distributed for DMD includes the source code for druntime. There is actually an old version of the code lingering in the import section, which now also contains generated interface files. dmd may be preferring the .d files over .di causing old code to be used.
The import directory is what is used for imports. The compiler doesn't use the src directory. What files do you see that are old? IIRC, the only non-generated file is object.di, which is maintained seperately from object_.d in the src directory.
There are both .di file and .d files in the import directory. The .d files are old, while the .di files are generated. It looks like this only starts under core/sys Anyway it was more confusing then a problem a guess. I thought enum values might be used from the .di files, since you shouldn't, no storage right?, be able to get its value from the library.
You are absolutely right. When looking in svn, those files have been removed. It's probably in the way the zipfile is packaged, it's not using a clean directory structure. Here is the complete list of d files that should be removed (all in import directory): core/sys/windows/windows.d core/sys/osx/mach/kern_return.d core/sys/osx/mach/port.d core/sys/osx/mach/semaphore.d core/sys/osx/mach/thread_act.d core/sys/posix/utime.d core/sys/posix/ucontext.d core/sys/posix/netinet/tcp.d core/sys/posix/netinet/in_.d core/sys/posix/sys/ipc.d core/sys/posix/sys/shm.d core/sys/posix/sys/stat.d core/sys/posix/sys/select.d core/sys/posix/sys/time.d core/sys/posix/sys/uio.d core/sys/posix/sys/wait.d core/sys/posix/sys/mman.d core/sys/posix/sys/types.d core/sys/posix/sys/socket.d core/sys/posix/poll.d core/sys/posix/time.d core/sys/posix/signal.d core/sys/posix/stdlib.d core/sys/posix/stdio.d core/sys/posix/fcntl.d core/sys/posix/pthread.d core/sys/posix/dlfcn.d core/sys/posix/semaphore.d core/sys/posix/unistd.d core/sys/posix/inttypes.d core/sys/posix/arpa/inet.d core/sys/posix/net/if_.d core/sys/posix/dirent.d core/sys/posix/termios.d core/sys/posix/config.d core/sys/posix/setjmp.d core/sys/posix/sched.d core/sys/posix/pwd.d core/stdc/stdarg.d core/stdc/complex.d core/stdc/limits.d core/stdc/math.d core/stdc/errno.d core/stdc/stdint.d core/stdc/string.d core/stdc/time.d core/stdc/signal.d core/stdc/stdlib.d core/stdc/stdio.d core/stdc/ctype.d core/stdc/inttypes.d core/stdc/locale.d core/stdc/wctype.d core/stdc/stddef.d core/stdc/float_.d core/stdc/config.d core/stdc/wchar_.d core/stdc/tgmath.d core/stdc/fenv.d Reassigning to Walter so he sees this.
*** Issue 5208 has been marked as a duplicate of this issue. ***
dmd.2.054.zip looks OK in this regard, I guess this was fixed a while ago.