From 89e3ac45a68a776a1f788a5495862c379c514dd5 Mon Sep 17 00:00:00 2001
From: sbrandt <sbrandt@17b73243-c579-4c4c-a9d2-2d5706c11dac>
Date: Wed, 18 Jun 2014 18:48:33 +0000
Subject: Ticket #1634

git-svn-id: http://svn.cactuscode.org/flesh/trunk@5121 17b73243-c579-4c4c-a9d2-2d5706c11dac
---
 lib/make/cctk_Config.h.in | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/lib/make/cctk_Config.h.in b/lib/make/cctk_Config.h.in
index 8a8a51fe..aee90a00 100644
--- a/lib/make/cctk_Config.h.in
+++ b/lib/make/cctk_Config.h.in
@@ -598,10 +598,14 @@ typedef enum {false, true} bool;
 
 /* Whether __builtin_unreachable exists. */
 #undef HAVE_CCTK_CXX_BUILTIN_UNREACHABLE
-#ifdef HAVE_CCTK_CXX_BUILTIN_UNREACHABLE
-#  define CCTK_BUILTIN_UNREACHABLE __builtin_unreachable
+#ifdef __CUDACC__
+#  define CCTK_BUILTIN_UNREACHABLE() asm("trap;")
 #else
-#  define CCTK_BUILTIN_UNREACHABLE() CCTK_Abort(0, 1)
+#  ifdef HAVE_CCTK_CXX_BUILTIN_UNREACHABLE
+#    define CCTK_BUILTIN_UNREACHABLE __builtin_unreachable
+#  else
+#    define CCTK_BUILTIN_UNREACHABLE() CCTK_Abort(0, 1)
+#  endif
 #endif
 
 /* Whether __builtin_assume_aligned exists. */
-- 
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