From dee7bafb13c654a2d62196451f013ef40dd2120f Mon Sep 17 00:00:00 2001
From: Anton Myagkov <antmya@transas.com>
Date: Mon, 16 Jul 2018 11:37:05 +0300
Subject: FindOpenCL: Search per-architecture path suffixes on UNIX

Use different path suffixes to find opencl for x86 and x86_64.
We already do this on Windows.
---
 Modules/FindOpenCL.cmake | 31 +++++++++++++++++++++----------
 1 file changed, 21 insertions(+), 10 deletions(-)

diff --git a/Modules/FindOpenCL.cmake b/Modules/FindOpenCL.cmake
index 297a5fb..fe162b4 100644
--- a/Modules/FindOpenCL.cmake
+++ b/Modules/FindOpenCL.cmake
@@ -119,16 +119,27 @@ if(WIN32)
         OpenCL/common/lib/x64)
   endif()
 else()
-  find_library(OpenCL_LIBRARY
-    NAMES OpenCL
-    PATHS
-      ENV AMDAPPSDKROOT
-      ENV CUDA_PATH
-    PATH_SUFFIXES
-      lib/x86_64
-      lib/x64
-      lib
-      lib64)
+  if(CMAKE_SIZEOF_VOID_P EQUAL 4)
+    find_library(OpenCL_LIBRARY
+      NAMES OpenCL
+      PATHS
+        ENV AMDAPPSDKROOT
+        ENV CUDA_PATH
+      PATH_SUFFIXES
+        lib/x86
+        lib)
+  elseif(CMAKE_SIZEOF_VOID_P EQUAL 8)
+    find_library(OpenCL_LIBRARY
+      NAMES OpenCL
+      PATHS
+        ENV AMDAPPSDKROOT
+        ENV CUDA_PATH
+      PATH_SUFFIXES
+        lib/x86_64
+        lib/x64
+        lib
+        lib64)
+  endif()
 endif()
 
 set(OpenCL_LIBRARIES ${OpenCL_LIBRARY})
-- 
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