fujitsu: added new package (#18021)

The package is at the moment not installable, just detectable.

Co-authored-by: Toyohisa Kameyama <kameyama@riken.jp>

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

@@ -0,0 +1,55 @@
+# Copyright 2013-2020 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+import re
+
+import llnl.util.tty as tty
+import spack.compiler
+import spack.util.executable
+
+
+class Fj(Package):
+    """The Fujitsu compiler system is a high performance, production quality
+    code generation tool designed for high performance parallel
+    computing workloads.
+    """
+
+    homepage = "https://www.fujitsu.com/global/us"
+
+    maintainers = ['t-karatsu']
+
+    def install(self, spec, prefix):
+        raise InstallError(
+            'Fujitsu compilers are not installable yet, but can be '
+            'detected on a system where they are supplied by vendor'
+        )
+
+    executables = ['^fcc', '^FCC', '^frt']
+
+    @classmethod
+    def determine_version(cls, exe):
+        version_regex = re.compile(r'\((?:FCC|FRT)\) ([a-z\d.]+)')
+        try:
+            output = spack.compiler.get_compiler_version_output(
+                exe, '--version'
+            )
+            match = version_regex.search(output)
+            if match:
+                return match.group(1)
+        except spack.util.executable.ProcessError:
+            pass
+        except Exception as e:
+            tty.debug(e)
+
+    @classmethod
+    def determine_variants(cls, exes, version_str):
+        compilers = {}
+        for exe in exes:
+            if 'fcc' in exe:
+                compilers['c'] = exe
+            if 'FCC' in exe:
+                compilers['cxx'] = exe
+            if 'frt' in exe:
+                compilers['fortran'] = exe
+        return '', {'compilers': compilers}