Include the same headers as on Windows.
[wine] / dlls / dsound /
drwxr-xr-x   ..
-rw-r--r-- 35 .cvsignore
-rw-r--r-- 225 Makefile.in
-rw-r--r-- 659 dsound.spec
-rw-r--r-- 103357 dsound_main.c