On Tue, Aug 23, 2011 at 12:15 PM, Gareth Coco <garethcoco at gmail.com> wrote: > To get around this I had to add the following: > > #include <stddef.h> /* For ptrdiff_h */ > > to both: > > src/libicalvcal/libicalvcal.c More correctly that would be: src/libicalvcal/icalvcal.c