Balay/ginkgo 1.1.0 (#13632)

* ginkgo: add version 1.1.0

* Ginkgo: add conflict for gcc older than version 5.3

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

@@ -18,7 +18,8 @@ class Ginkgo(CMakePackage, CudaPackage):
 
     version('develop', branch='develop')
     version('master', branch='master')
-    version('1.0.0', commit='4524464')  # v1.0.0
+    version('1.1.0', commit='b9bec8225442b3eb2a85a870efa112ab767a17fb')  # v1.1.0
+    version('1.0.0', commit='45244641e0c2b19ba33aecd25153c0bddbcbe1a0')  # v1.0.0
 
     variant('shared', default=True, description='Build shared libraries')
     variant('full_optimizations', default=False, description='Compile with all optimizations')
@@ -31,6 +32,8 @@ class Ginkgo(CMakePackage, CudaPackage):
     depends_on('cmake@3.9:', type='build')
     depends_on('cuda@9:',    when='+cuda')
 
+    conflicts('%gcc@:5.2.9')
+
     def cmake_args(self):
         spec = self.spec
         return [