GDC and DMD incompatability, can both be used?

[cy]

hunt/source/hunt/serialization/JsonSerializer.d:125:20: error: 
basic type expected, not foreach
   125 |             static foreach (string member; 
FieldNameTuple!T) {

I'm having a little trouble using the hunt library with gdc. Does 
gdc not support static foreach at all? Is there some way to write 
code that it can understand, which does the same thing?