All signal handlers are required to have C language linkage in C++. This does not fix all signal handlers, but does fix the most recent one.

llvm-svn: 227490

llvm/lib/Support/Windows/Signals.inc

@@ -196,7 +196,7 @@ static int AvoidMessageBoxHook(int ReportType, char *Message, int *Return) {
 
 #endif
 
-static void HandleAbort(int Sig) {
+extern "C" void HandleAbort(int Sig) {
   if (Sig == SIGABRT) {
     LLVM_BUILTIN_TRAP;
   }