openblas: Add route to f_check for Fujitsu compiler. (#11804)

var/spack/repos/builtin/packages/openblas/openblas_fujitsu.patch

@@ -0,0 +1,14 @@
+--- OpenBLAS-0.3.6/f_check	2019-04-30 02:22:19.000000000 +0900
++++ OpenBLAS-0.3.6/f_check_fix	2019-08-05 10:31:56.066962193 +0900
+@@ -69,7 +69,10 @@
+ 	    $bu       = "_";
+ 	}
+ 
+-	if ($data =~ /GNU/) {
++        if ($data =~ /Fujitsu/) {
++            $vendor = FUJITSU;
++            $openmp = "-Kopenmp";
++        } elsif ($data =~ /GNU/) {
+ 
+ 	    $data =~ /(\d)\.(\d).(\d)/;
+ 	    $major = $1;

var/spack/repos/builtin/packages/openblas/package.py

@@ -110,6 +110,9 @@ class Openblas(MakefilePackage):
           sha256='f1b066a4481a50678caeb7656bf3e6764f45619686ac465f257c8017a2dc1ff0',
           when='@0.3.0:0.3.3')
 
+    # Add conditions to f_check to determine the Fujitsu compiler
+    patch('openblas_fujitsu.patch', when='%fj')
+
     conflicts('%intel@16', when='@0.2.15:0.2.19')
 
     @property