From 8711763d429c0f8d4f09b5fc3901d5a5a35a3a9b Mon Sep 17 00:00:00 2001
From: Nikolay Amiantov <ab@fmap.me>
Date: Sun, 25 Feb 2018 20:05:57 +0300
Subject: opencv3: fix openblas dependency

---
 pkgs/development/libraries/opencv/3.x.nix | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'pkgs/development/libraries')

diff --git a/pkgs/development/libraries/opencv/3.x.nix b/pkgs/development/libraries/opencv/3.x.nix
index ccac04c18ca..b5ee83ddfe8 100644
--- a/pkgs/development/libraries/opencv/3.x.nix
+++ b/pkgs/development/libraries/opencv/3.x.nix
@@ -221,6 +221,9 @@ stdenv.mkDerivation rec {
 
   NIX_CFLAGS_COMPILE = lib.optional enableEXR "-I${ilmbase.dev}/include/OpenEXR";
 
+  # Configure can't find the library without this.
+  OpenBLAS_HOME = lib.optionalString enableOpenblas openblas;
+
   cmakeFlags = [
     "-DWITH_OPENMP=ON"
     "-DBUILD_PROTOBUF=OFF"
-- 
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