From dd8d859829ff34e36a2e68fb895be1ce13399f8f Mon Sep 17 00:00:00 2001
From: Benjamin Hipple <bhipple@protonmail.com>
Date: Fri, 10 Apr 2020 14:11:46 -0400
Subject: [PATCH] opencl-clhpp: fix install directory
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Previously, it was installing to `$out/include/include`. Now it's correct:

/nix/store/alw8idc8qhfhzw98banq2l5hmrdaglgm-opencl-clhpp-2.0.11
├── include
│   └── CL
│       ├── cl2.hpp
│       └── cl.hpp
└── nix-support
    └── propagated-build-inputs

3 directories, 3 files
---
 pkgs/development/libraries/opencl-clhpp/default.nix | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/pkgs/development/libraries/opencl-clhpp/default.nix b/pkgs/development/libraries/opencl-clhpp/default.nix
index cb8d9c788ca..bf45bc90f19 100644
--- a/pkgs/development/libraries/opencl-clhpp/default.nix
+++ b/pkgs/development/libraries/opencl-clhpp/default.nix
@@ -15,9 +15,10 @@ stdenv.mkDerivation rec {
 
   propagatedBuildInputs = [ opencl-headers ];
 
-  preConfigure = ''
-    cmakeFlags="-DCMAKE_INSTALL_PREFIX=$out/include -DBUILD_EXAMPLES=OFF -DBUILD_TESTS=OFF"
-  '';
+  cmakeFlags = [
+    "-DBUILD_EXAMPLES=OFF"
+    "-DBUILD_TESTS=OFF"
+  ];
 
   meta = with stdenv.lib; {
     description = "OpenCL Host API C++ bindings";