Fix opencl dlopen (rfbz#5185)

x264-opencl.patch

@@ -0,0 +1,11 @@
+--- a/common/opencl.c	2019-03-12 00:41:42.000000000 +0000
++++ b/common/opencl.c	2019-04-28 22:39:02.672147762 +0100
+@@ -36,7 +36,7 @@
+ #if SYS_MACOSX
+ #define ocl_open dlopen( "/System/Library/Frameworks/OpenCL.framework/OpenCL", RTLD_NOW )
+ #else
+-#define ocl_open dlopen( "libOpenCL.so", RTLD_NOW )
++#define ocl_open dlopen( "libOpenCL.so.1", RTLD_NOW )
+ #endif
+ #define ocl_close dlclose
+ #define ocl_address dlsym

x264.spec

@@ -42,6 +42,7 @@ Patch0: x264-nover.patch
 # add 10b suffix to high bit depth build
 Patch1: x264-10b.patch
 Patch10: x264-gpac.patch
+Patch11: x264-opencl.patch
 
 BuildRequires: gcc
 %{!?_without_gpac:BuildRequires: gpac-devel-static zlib-devel openssl-devel libpng-devel libjpeg-devel}
@@ -65,6 +66,7 @@ This package contains the frontend.
 
 %package libs
 Summary: Library for encoding H264/AVC video streams
+Recommends: %{_libdir}/libOpenCL.so.1
 
 %description libs
 x264 is a free library for encoding H264/AVC video streams, written from
@@ -98,6 +100,7 @@ pushd %{name}-0.%{api}-%{snapshot}
 %patch0 -p1 -b .nover
 %patch1 -p1 -b .10b
 %patch10 -p1 -b .gpac
+%patch11 -p1 -b .opencl
 popd
 
 variants="generic generic10"