integral constant overflow C4307 with compiler crash

[click4dylan]

I cannot use the string encryption at all. Throws errors immediately and crashes the compiler with "Internal error during IMAGE:BuildImage" LNK1000 and MSB6006 "link.exe" exited with code 1000 and C1001 "An internal error has occurred in the compiler." Using Visual Studio 2015 Update 2

What's in my code:

include "cx_strenc.h"

define strenc( s ) std::string( cx_make_encrypted_string( s ) )

void Test()
{
std::string test = strenc("Test String");
}