From d7303226f2df7ed6b1d2578ecaa94216a34c25ac Mon Sep 17 00:00:00 2001
From: reyoung <reyoung@linux.laptop>
Date: Thu, 30 Mar 2017 13:37:50 +0800
Subject: [PATCH] Adapt old cmake

---
 cmake/external/openblas.cmake | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/cmake/external/openblas.cmake b/cmake/external/openblas.cmake
index 58d70a27fd..62ad2bbc23 100644
--- a/cmake/external/openblas.cmake
+++ b/cmake/external/openblas.cmake
@@ -29,6 +29,10 @@ IF(NOT ${CBLAS_FOUND})
 
     IF(CMAKE_COMPILER_IS_GNUCC)
         ENABLE_LANGUAGE(Fortran)
+        if (NOT CMAKE_Fortran_COMPILER_VERSION)
+          # cmake version is too old, we cannot get fortran version, using CXX version instead.
+          set(CMAKE_Fortran_COMPILER_VERSION ${CMAKE_CXX_COMPILER_VERSION})
+        endif()
         string(REGEX MATCHALL "[0-9]+" Fortran_VERSION ${CMAKE_Fortran_COMPILER_VERSION})
         list(GET Fortran_VERSION 0 Fortran_MAJOR)
         list(GET Fortran_VERSION 1 Fortran_MINOR)
-- 
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