I was receiving the following compiler error:
vld_def.h(45) : error C2061: syntax error : identifier 'wchar_t'
After searching I found http://stackoverflow.com/questions/8782561/compiling-c-code-with-vld.
According to lochok and mloskot, including wchar.h in vld.h and vld_def.h, or simply calling #include <wchar.h> prior to #include <vld.h> fixes the issue.
I'm not sure if anyone else is having this issue or not. I'm currently using Qt Creator 2.5.0 with Qt 4.8.1 using VC++ 2010 express.
If this is a common issue would it be possible to add a #include <wchar.h> directive to the relevant vld headers?