Massive conversion from Package to CMakePackage (#4975)

var/spack/repos/builtin/packages/sdl2/package.py

@@ -25,7 +25,7 @@
 from spack import *
 
 
-class Sdl2(Package):
+class Sdl2(CMakePackage):
     """Simple DirectMedia Layer is a cross-platform development library designed
     to provide low level access to audio, keyboard, mouse, joystick, and
     graphics hardware via OpenGL and Direct3D."""
@@ -35,11 +35,4 @@ class Sdl2(Package):
 
     version('2.0.5', 'd4055424d556b4a908aa76fad63abd3c')
 
-    depends_on('cmake', type='build')
-
-    def install(self, spec, prefix):
-        with working_dir('spack-build', create=True):
-            cmake('..', *std_cmake_args)
-
-            make()
-            make('install')
+    depends_on('cmake@2.8.5:', type='build')