From 66a473455e3c6fa206c0efacccb61a8f9785e279 Mon Sep 17 00:00:00 2001
From: Axel Kohlmeyer <akohlmey@gmail.com>
Date: Mon, 6 Jan 2020 17:34:26 -0500
Subject: [PATCH] silence warnings from generic OpenCL header files (as seen on
 Fedora 31)

---
 lib/gpu/geryon/ocl_device.h | 8 ++++++++
 lib/gpu/geryon/ocl_macros.h | 8 ++++++++
 2 files changed, 16 insertions(+)

diff --git a/lib/gpu/geryon/ocl_device.h b/lib/gpu/geryon/ocl_device.h
index 14455e38a5..e414e7b69c 100644
--- a/lib/gpu/geryon/ocl_device.h
+++ b/lib/gpu/geryon/ocl_device.h
@@ -28,6 +28,14 @@
 #include <vector>
 #include <iostream>
 
+/* We default to OpenCL 1.2 as target version for now as
+ * there are known issues with OpenCL 2.0 and later.
+ * This is also to silence warnings from generic OpenCL headers */
+
+#if !defined(CL_TARGET_OPENCL_VERSION)
+#define CL_TARGET_OPENCL_VERSION 120
+#endif
+
 #ifdef __APPLE__
 #include <OpenCL/cl.h>
 #include <OpenCL/cl_platform.h>
diff --git a/lib/gpu/geryon/ocl_macros.h b/lib/gpu/geryon/ocl_macros.h
index 5fb7665817..aeff689859 100644
--- a/lib/gpu/geryon/ocl_macros.h
+++ b/lib/gpu/geryon/ocl_macros.h
@@ -4,6 +4,14 @@
 #include <cstdio>
 #include <cassert>
 
+/* We default to OpenCL 1.2 as target version for now as
+ * there are known issues with OpenCL 2.0 and later.
+ * This is also to silence warnings from generic OpenCL headers */
+
+#if !defined(CL_TARGET_OPENCL_VERSION)
+#define CL_TARGET_OPENCL_VERSION 120
+#endif
+
 #ifdef __APPLE__
 #include <OpenCL/cl.h>
 #else