elpa: add 2017.05.002 and 2017.05.003 (#5306)

* elpa: add 2017.05.002 and 2017.05.03
* add a variant for optimization flags

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

@@ -22,7 +22,6 @@
 # License along with this program; if not, write to the Free Software
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 ##############################################################################
-
 from spack import *
 
 
@@ -32,12 +31,15 @@ class Elpa(AutotoolsPackage):
     homepage = 'http://elpa.mpcdf.mpg.de/'
     url = 'http://elpa.mpcdf.mpg.de/elpa-2015.11.001.tar.gz'
 
+    version('2017.05.003', '7c8e5e58cafab212badaf4216695700f')
+    version('2017.05.002', 'd0abc1ac1f493f93bf5e30ec8ab155dc')
     version('2016.11.001.pre', '5656fd066cf0dcd071dbcaf20a639b37')
     version('2016.05.004', 'c0dd3a53055536fc3a2a221e78d8b376', preferred=True)
     version('2016.05.003', '88a9f3f3bfb63e16509dd1be089dcf2c')
     version('2015.11.001', 'de0f35b7ee7c971fd0dca35c900b87e6')
 
     variant('openmp', default=False, description='Activates OpenMP support')
+    variant('optflags', default=True, description='Build with optimization flags')
 
     depends_on('mpi')
     depends_on('blas')
@@ -53,9 +55,7 @@ def url_for_version(self, version):
     # override default implementation which returns static lib
     @property
     def libs(self):
-
         libname = 'libelpa_openmp' if '+openmp' in self.spec else 'libelpa'
-
         return find_libraries(
             libname, root=self.prefix, shared=True, recurse=True
         )
@@ -63,8 +63,6 @@ def libs(self):
     build_directory = 'spack-build'
 
     def setup_environment(self, spack_env, run_env):
-        # TODO: set optimum flags for platform+compiler combo, see
-        # https://github.com/hfp/xconfigure/tree/master/elpa
         spec = self.spec
 
         spack_env.set('CC', spec['mpi'].mpicc)
@@ -76,7 +74,20 @@ def setup_environment(self, spack_env, run_env):
         spack_env.set('SCALAPACK_LDFLAGS', spec['scalapack'].libs.joined())
 
     def configure_args(self):
+        # TODO: set optimum flags for platform+compiler combo, see
+        # https://github.com/hfp/xconfigure/tree/master/elpa
+        # also see:
+        # https://src.fedoraproject.org/cgit/rpms/elpa.git/
+        # https://packages.qa.debian.org/e/elpa.html
         options = []
+        # without -march=native there is configure error for 2017.05.02
+        # Could not compile test program, try with --disable-sse, or
+        # adjust the C compiler or CFLAGS
+        if '+optflags' in self.spec:
+            options.extend([
+                'FCFLAGS=-O2 -march=native -ffree-line-length-none',
+                'CFLAGS=-O2 -march=native'
+            ])
         if '+openmp' in self.spec:
-            options.append("--enable-openmp")
+            options.append('--enable-openmp')
         return options