From 0dd18113449ba02ac2794adbd47226983912901d Mon Sep 17 00:00:00 2001
From: Andreas Rumpf <rumpf_a@web.de>
Date: Mon, 22 Jan 2018 14:06:53 +0100
Subject: [PATCH] make C++ tests green again

---
 lib/system/excpt.nim | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/system/excpt.nim b/lib/system/excpt.nim
index 0087c61395..3d75a8704d 100644
--- a/lib/system/excpt.nim
+++ b/lib/system/excpt.nim
@@ -386,9 +386,9 @@ proc writeStackTrace() =
   when hasSomeStackTrace:
     var s = ""
     rawWriteStackTrace(s)
-    cast[proc (s: string) {.noSideEffect, tags: [], nimcall.}](showErrorMessage)(s)
+    cast[proc (s: cstring) {.noSideEffect, tags: [], nimcall.}](showErrorMessage)(s)
   else:
-    cast[proc (s: string) {.noSideEffect, tags: [], nimcall.}](showErrorMessage)("No stack traceback available\n")
+    cast[proc (s: cstring) {.noSideEffect, tags: [], nimcall.}](showErrorMessage)("No stack traceback available\n")
 
 proc getStackTrace(): string =
   when hasSomeStackTrace: