med package: add version 4.0.0 (#15652)

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

@@ -15,15 +15,17 @@ class Med(CMakePackage):
 
     maintainers = ['likask']
 
+    version('4.0.0', sha256='a474e90b5882ce69c5e9f66f6359c53b8b73eb448c5f631fa96e8cd2c14df004')
     version('3.2.0', sha256='d52e9a1bdd10f31aa154c34a5799b48d4266dc6b4a5ee05a9ceda525f2c6c138')
 
     variant('api23', default=True, description='Enable API2.3')
 
     depends_on('mpi')
-    depends_on('hdf5@:1.8.19+mpi')
+    depends_on('hdf5@:1.8.19+mpi', when='@3.2.0')
+    depends_on('hdf5@:1.10.2+mpi', when='@4.0.0')
 
     # C++11 requires a space between literal and identifier
-    patch('add_space.patch')
+    patch('add_space.patch', when='@3.2.0')
 
     # FIXME This is minimal installation.