Massive conversion from Package to CMakePackage (#4975)

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

@@ -25,7 +25,7 @@
 from spack import *
 
 
-class Piranha(Package):
+class Piranha(CMakePackage):
     """Piranha is a computer-algebra library for the symbolic manipulation of
     sparse multivariate polynomials and other closely-related symbolic objects
     (such as Poisson series)."""
@@ -40,7 +40,7 @@ class Piranha(Package):
             description='Build the Python bindings')
 
     # Build dependencies
-    depends_on('cmake@3.0:',  type='build')
+    depends_on('cmake@3.2.0:', type='build')
     extends('python',         when='+pyranha')
     depends_on('python@2.6:', type='build', when='+pyranha')
 
@@ -53,21 +53,8 @@ class Piranha(Package):
     depends_on('gmp')   # mpir is a drop-in replacement for this
     depends_on('mpfr')  # Could also be built against mpir
 
-    def install(self, spec, prefix):
-        options = []
-        options.extend(std_cmake_args)
-
-        # Python bindings
-        options.extend([
-            '-DBUILD_PYRANHA=%s' % (
-                'ON' if '+python' in spec else 'OFF'),
+    def cmake_args(self):
+        return [
+            '-DBUILD_PYRANHA=%s' % ('ON' if '+python' in self.spec else 'OFF'),
             '-DBUILD_TESTS:BOOL=ON',
-        ])
-
-        with working_dir('spack-build', create=True):
-            cmake('..', *options)
-
-            make()
-            make('install')
-            if self.run_tests:
-                make('test')
+        ]