include config.h to get config params, hopefully unbreaking mingw builder.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111325 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/ErrorHandling.cpp b/lib/Support/ErrorHandling.cpp
index c4d5ea4..08830dc 100644
--- a/lib/Support/ErrorHandling.cpp
+++ b/lib/Support/ErrorHandling.cpp
@@ -19,6 +19,7 @@
 #include "llvm/System/Signals.h"
 #include "llvm/System/Threading.h"
 #include "llvm/ADT/SmallVector.h"
+#include "llvm/Config/config.h"
 #include <cassert>
 #include <cstdlib>