From 1f491588ad6c48f3726afbf2e8adeb911c609b0f Mon Sep 17 00:00:00 2001
From: Brice Videau <bvideau@anl.gov>
Date: Fri, 6 May 2022 11:09:34 -0500
Subject: [PATCH] Wrap callback in extern "C" block.

---
 object-lifetime/object_lifetime.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/object-lifetime/object_lifetime.cpp b/object-lifetime/object_lifetime.cpp
index 5167d485..5f47ac8a 100644
--- a/object-lifetime/object_lifetime.cpp
+++ b/object-lifetime/object_lifetime.cpp
@@ -787,6 +787,8 @@ static void* get_parent(cl_kernel kernel) {
   return NULL;
 }
 
+extern "C" {
+
   /* OpenCL 1.0 */
 static CL_API_ENTRY cl_int CL_API_CALL clGetPlatformIDs_wrap(
     cl_uint num_entries,
@@ -3684,6 +3686,8 @@ static CL_API_ENTRY cl_int CL_API_CALL clSetContextDestructorCallback_wrap(
     user_data);
 }
 
+} // extern "C"
+
 static void _init_dispatch(void) {
   dispatch.clGetPlatformIDs = &clGetPlatformIDs_wrap;
   dispatch.clGetPlatformInfo = &clGetPlatformInfo_wrap;