Lis: Add new package (#20548)

* Lis: Add new package

* delete unnecessary inner quotes

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

@@ -0,0 +1,37 @@
+# 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)
+
+from spack import *
+
+
+class Lis(AutotoolsPackage):
+    """Lis (Library of Iterative Solvers for linear systems,
+       pronounced [lis]) is a parallel software library for
+       solving discretized linear equations and eigenvalue
+       problems that arise in the numerical solution of partial
+       differential equations using iterative methods."""
+
+    homepage = "https://www.ssisc.org/lis/index.en.html"
+    url      = "https://www.ssisc.org/lis/dl/lis-2.0.27.zip"
+
+    version('2.0.27', sha256='85f32f4abbc94d1b40b22c10b915170271b19822b6aa6939b1cb295f6e455237')
+
+    variant('mpi', default=False, description='Build with MPI library')
+    variant('omp', default=False, description='Build with openMP library')
+    variant('f90', default=False, description='enable FORTRAN 90 compatible interfaces')
+
+    depends_on('mpi', when='+mpi')
+
+    def configure_args(self):
+        config_args = []
+        config_args.extend(self.enable_or_disable('mpi'))
+        config_args.extend(self.enable_or_disable('omp'))
+        config_args.extend(self.enable_or_disable('f90'))
+
+        if self.spec.satisfies('%fj'):
+            config_args.append('CLIBS=-lm')
+            config_args.append('FCLDFLAGS=-mlcmain=main')
+
+        return config_args