Interfacing with C in 2.066.1

[Jason den Dulk via Digitalmars-d]

When upgrading my compiler from 2.065 to 2.066.1 I have 
encountered problems with some of my extern(C) code.

My declarations (in a .di file) are wrapped in an extern(C) 
declaration. The code compiled fine in 2.065. In 2.066.1 it first 
complained about functions returning "const char *" ("function 
without this cannot be const"). After removing the offending 
consts, it now complains of a missing "init" field of a struct.

It looks like its trying to access the stuff as D code rather 
than C code. Can anyone shed some light on what the problem might 
be?

Thanks in advance
Jason