clblas: turn of gtest, fix build

clblas does not work anymore with gmock 1.8.1.
Turning off the test suite fixes the build.

(cherry picked from commit 4c74ee9)

pkgs/development/libraries/science/math/clblas/default.nix

@@ -8,21 +8,20 @@
 , ocl-icd
 , opencl-headers
 , Accelerate, CoreGraphics, CoreVideo, OpenCL
-, gtest
 }:
 
 stdenv.mkDerivation rec {
-  name = "clblas-${version}"; 
+  name = "clblas-${version}";
   version = "2.12";
 
   src = fetchFromGitHub {
-    owner = "clMathLibraries"; 
+    owner = "clMathLibraries";
     repo = "clBLAS";
     rev = "v${version}";
     sha256 = "154mz52r5hm0jrp5fqrirzzbki14c1jkacj75flplnykbl36ibjs";
-  }; 
+  };
 
-  patches = [ ./platform.patch ]; 
+  patches = [ ./platform.patch ];
 
   postPatch = ''
     sed -i -re 's/(set\(\s*Boost_USE_STATIC_LIBS\s+).*/\1OFF\ \)/g' src/CMakeLists.txt
@@ -33,7 +32,7 @@ stdenv.mkDerivation rec {
   '';
 
   cmakeFlags = [
-    "-DUSE_SYSTEM_GTEST=ON"
+     "-DBUILD_TEST=OFF"
   ];
 
   buildInputs = [
@@ -42,7 +41,6 @@ stdenv.mkDerivation rec {
     blas
     python
     boost
-    gtest
   ] ++ stdenv.lib.optionals (!stdenv.isDarwin) [
     ocl-icd
     opencl-headers
@@ -61,7 +59,7 @@ stdenv.mkDerivation rec {
     homepage = "https://github.com/clMathLibraries/clBLAS";
     description = "A software library containing BLAS functions written in OpenCL";
     longDescription = ''
-      This package contains a library of BLAS functions on top of OpenCL. 
+      This package contains a library of BLAS functions on top of OpenCL.
     '';
     license = licenses.asl20;
     maintainers = with maintainers; [ artuuge ];