From db81d19ddd38914d8149d1a6d8b6bcd459b20c87 Mon Sep 17 00:00:00 2001
From: Peter Scheibel <scheibel1@llnl.gov>
Date: Wed, 21 Feb 2018 11:36:11 -0500
Subject: [PATCH] PackageBase: add a list of metadata attributes

These attributes are ignored when doing a content hash of a package.
---
 lib/spack/spack/package.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/spack/spack/package.py b/lib/spack/spack/package.py
index e2877ac72a..0b49cf5db3 100644
--- a/lib/spack/spack/package.py
+++ b/lib/spack/spack/package.py
@@ -563,6 +563,10 @@ class SomePackage(Package):
     #: Do not include @ here in order not to unnecessarily ping the users.
     maintainers = []
 
+    #: List of attributes which affect do not affect a package's content.
+    metadata_attrs = ['homepage', 'url', 'list_url', 'extendable', 'parallel',
+                      'make_jobs']
+
     def __init__(self, spec):
         # this determines how the package should be built.
         self.spec = spec