From 9bc75325cc38962ecdd4a3ebd67ce34ea8162a45 Mon Sep 17 00:00:00 2001
From: Lars Wendler <polynomial-c@gentoo.org>
Date: Thu, 13 Feb 2020 13:12:45 +0100
Subject: [PATCH 3/6] Prefer pkgconfig in FindBLAS

--- a/Modules/FindBLAS.cmake
+++ b/Modules/FindBLAS.cmake
@@ -7,6 +7,10 @@ FindBLAS
 
 Find Basic Linear Algebra Subprograms (BLAS) library
 
+Version modified for Gentoo Linux.
+If a valid PkgConfig configuration is found, this overrides and cancels
+all further checks.
+
 This module finds an installed Fortran library that implements the
 `BLAS linear-algebra interface`_.
 
@@ -276,6 +280,9 @@ function(_add_blas_target)
   endif()
 endfunction()
 
+# first, try PkgConfig
+set(BLA_PREFER_PKGCONFIG ON)
+
 if(CMAKE_Fortran_COMPILER_LOADED)
   include(${CMAKE_CURRENT_LIST_DIR}/CheckFortranFunctionExists.cmake)
 else()
-- 
2.41.0