Merge branch 'develop' of https://github.com/LLNL/spack into features/module_refresh

Conflicts:
	lib/spack/spack/test/__init__.py

17 files changed, 421 insertions, 220 deletions

diff --git a/.gitignore b/.gitignore
index 040df3eafd..bfc6172a4e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,7 +1,7 @@
 /var/spack/stage
 /var/spack/cache
 *.pyc
-/opt/
+/opt
 *~
 .DS_Store
 .idea
diff --git a/lib/spack/spack/cmd/bootstrap.py b/lib/spack/spack/cmd/bootstrap.py
index bec11439b5..60e2bd3a11 100644
--- a/lib/spack/spack/cmd/bootstrap.py
+++ b/lib/spack/spack/cmd/bootstrap.py
@@ -23,7 +23,6 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 ##############################################################################
 import os
-from subprocess import check_call
 
 import llnl.util.tty as tty
 from llnl.util.filesystem import join_path, mkdirp
@@ -31,26 +30,49 @@ from llnl.util.filesystem import join_path, mkdirp
 import spack
 from spack.util.executable import which
 
+_SPACK_UPSTREAM = 'https://github.com/llnl/spack'
+
 description = "Create a new installation of spack in another prefix"
 
+
 def setup_parser(subparser):
-    subparser.add_argument('prefix', help="names of prefix where we should install spack")
+    subparser.add_argument(
+        '-r', '--remote', action='store', dest='remote',
+        help="name of the remote to bootstrap from", default='origin')
+    subparser.add_argument(
+        'prefix',
+        help="names of prefix where we should install spack")
 
 
-def get_origin_url():
+def get_origin_info(remote):
     git_dir = join_path(spack.prefix, '.git')
     git = which('git', required=True)
-    origin_url = git(
-        '--git-dir=%s' % git_dir, 'config', '--get', 'remote.origin.url',
-        output=str)
-    return origin_url.strip()
+    try:
+        branch = git('symbolic-ref', '--short', 'HEAD', output=str)
+    except ProcessError:
+        branch = 'develop'
+        tty.warn('No branch found; using default branch: %s' % branch)
+    if remote == 'origin' and \
+       branch not in ('master', 'develop'):
+        branch = 'develop'
+        tty.warn('Unknown branch found; using default branch: %s' % branch)
+    try:
+        origin_url = git(
+            '--git-dir=%s' % git_dir,
+            'config', '--get', 'remote.%s.url' % remote,
+            output=str)
+    except ProcessError:
+        origin_url = _SPACK_UPSTREAM
+        tty.warn('No git repository found; '
+                 'using default upstream URL: %s' % origin_url)
+    return (origin_url.strip(), branch.strip())
 
 
 def bootstrap(parser, args):
-    origin_url = get_origin_url()
+    origin_url, branch = get_origin_info(args.remote)
     prefix = args.prefix
 
-    tty.msg("Fetching spack from origin: %s" % origin_url)
+    tty.msg("Fetching spack from '%s': %s" % (args.remote, origin_url))
 
     if os.path.isfile(prefix):
         tty.die("There is already a file at %s" % prefix)
@@ -62,7 +84,8 @@ def bootstrap(parser, args):
 
     files_in_the_way = os.listdir(prefix)
     if files_in_the_way:
-        tty.die("There are already files there!  Delete these files before boostrapping spack.",
+        tty.die("There are already files there! "
+                "Delete these files before boostrapping spack.",
                 *files_in_the_way)
 
     tty.msg("Installing:",
@@ -73,8 +96,10 @@ def bootstrap(parser, args):
     git = which('git', required=True)
     git('init', '--shared', '-q')
     git('remote', 'add', 'origin', origin_url)
-    git('fetch', 'origin', 'master:refs/remotes/origin/master', '-n', '-q')
-    git('reset', '--hard', 'origin/master', '-q')
+    git('fetch', 'origin', '%s:refs/remotes/origin/%s' % (branch, branch),
+                           '-n', '-q')
+    git('reset', '--hard', 'origin/%s' % branch, '-q')
+    git('checkout', '-B', branch, 'origin/%s' % branch, '-q')
 
     tty.msg("Successfully created a new spack in %s" % prefix,
             "Run %s/bin/spack to use this installation." % prefix)
diff --git a/lib/spack/spack/cmd/checksum.py b/lib/spack/spack/cmd/checksum.py
index 95bd4771ed..aedb0fd99c 100644
--- a/lib/spack/spack/cmd/checksum.py
+++ b/lib/spack/spack/cmd/checksum.py
@@ -42,7 +42,8 @@ def setup_parser(subparser):
         '--keep-stage', action='store_true', dest='keep_stage',
         help="Don't clean up staging area when command completes.")
     subparser.add_argument(
-        'versions', nargs=argparse.REMAINDER, help='Versions to generate checksums for')
+        'versions', nargs=argparse.REMAINDER,
+        help='Versions to generate checksums for')
 
 
 def get_checksums(versions, urls, **kwargs):
@@ -59,10 +60,10 @@ def get_checksums(versions, urls, **kwargs):
             with Stage(url, keep=keep_stage) as stage:
                 stage.fetch()
                 if i == 0 and first_stage_function:
-                    first_stage_function(stage)
+                    first_stage_function(stage, url)
 
-                hashes.append((version,
-                               spack.util.crypto.checksum(hashlib.md5, stage.archive_file)))
+                hashes.append((version, spack.util.crypto.checksum(
+                    hashlib.md5, stage.archive_file)))
                 i += 1
         except FailedDownloadError as e:
             tty.msg("Failed to fetch %s" % url)
@@ -79,12 +80,12 @@ def checksum(parser, args):
     # If the user asked for specific versions, use those.
     if args.versions:
         versions = {}
-        for v in args.versions:
-            v = ver(v)
-            if not isinstance(v, Version):
+        for version in args.versions:
+            version = ver(version)
+            if not isinstance(version, Version):
                 tty.die("Cannot generate checksums for version lists or " +
                         "version ranges.  Use unambiguous versions.")
-            versions[v] = pkg.url_for_version(v)
+            versions[version] = pkg.url_for_version(version)
     else:
         versions = pkg.fetch_remote_versions()
         if not versions:
@@ -111,5 +112,7 @@ def checksum(parser, args):
     if not version_hashes:
         tty.die("Could not fetch any versions for %s" % pkg.name)
 
-    version_lines = ["    version('%s', '%s')" % (v, h) for v, h in version_hashes]
+    version_lines = [
+        "    version('%s', '%s')" % (v, h) for v, h in version_hashes
+    ]
     tty.msg("Checksummed new versions of %s:" % pkg.name, *version_lines)
diff --git a/lib/spack/spack/cmd/create.py b/lib/spack/spack/cmd/create.py
index c9fa687b74..2c440096d1 100644
--- a/lib/spack/spack/cmd/create.py
+++ b/lib/spack/spack/cmd/create.py
@@ -103,6 +103,64 @@ ${versions}
 ${install}
 """)
 
+# Build dependencies and extensions
+dependencies_dict = {
+    'autotools': "# depends_on('foo')",
+    'cmake':     "depends_on('cmake')",
+    'scons':     "depends_on('scons')",
+    'python':    "extends('python')",
+    'R':         "extends('R')",
+    'octave':    "extends('octave')",
+    'unknown':   "# depends_on('foo')"
+}
+
+# Default installation instructions
+install_dict = {
+    'autotools': """\
+        # FIXME: Modify the configure line to suit your build system here.
+        configure('--prefix={0}'.format(prefix))
+
+        # FIXME: Add logic to build and install here.
+        make()
+        make('install')""",
+
+    'cmake': """\
+        with working_dir('spack-build', create=True):
+            # FIXME: Modify the cmake line to suit your build system here.
+            cmake('..', *std_cmake_args)
+
+            # FIXME: Add logic to build and install here.
+            make()
+            make('install')""",
+
+    'scons': """\
+        # FIXME: Add logic to build and install here.
+        scons('prefix={0}'.format(prefix))
+        scons('install')""",
+
+    'python': """\
+        # FIXME: Add logic to build and install here.
+        python('setup.py', 'install', '--prefix={0}'.format(prefix))""",
+
+    'R': """\
+        # FIXME: Add logic to build and install here.
+        R('CMD', 'INSTALL', '--library={0}'.format(self.module.r_lib_dir),
+          self.stage.source_path)""",
+
+    'octave': """\
+        # FIXME: Add logic to build and install here.
+        octave('--quiet', '--norc',
+               '--built-in-docstrings-file=/dev/null',
+               '--texi-macros-file=/dev/null',
+               '--eval', 'pkg prefix {0}; pkg install {1}'.format(
+                   prefix, self.stage.archive_file))""",
+
+    'unknown': """\
+        # FIXME: Unknown build system
+        make()
+        make('install')"""
+}
+
 
 def make_version_calls(ver_hash_tuples):
     """Adds a version() call to the package for each version found."""
@@ -133,60 +191,17 @@ def setup_parser(subparser):
     setup_parser.subparser = subparser
 
 
-class ConfigureGuesser(object):
-    def __call__(self, stage):
-        """Try to guess the type of build system used by the project.
-        Set any necessary build dependencies or extensions.
-        Set the appropriate default installation instructions."""
-
-        # Build dependencies and extensions
-        dependenciesDict = {
-            'autotools': "# depends_on('foo')",
-            'cmake':     "depends_on('cmake', type='build')",
-            'scons':     "depends_on('scons', type='build')",
-            'python':    "extends('python', type=nolink)",
-            'R':         "extends('R')",
-            'unknown':   "# depends_on('foo')"
-        }
-
-        # Default installation instructions
-        installDict = {
-            'autotools': """\
-        # FIXME: Modify the configure line to suit your build system here.
-        configure('--prefix={0}'.format(prefix))
-
-        # FIXME: Add logic to build and install here.
-        make()
-        make('install')""",
-
-            'cmake':     """\
-        with working_dir('spack-build', create=True):
-            # FIXME: Modify the cmake line to suit your build system here.
-            cmake('..', *std_cmake_args)
+class BuildSystemGuesser(object):
+    def __call__(self, stage, url):
+        """Try to guess the type of build system used by a project based on
+        the contents of its archive or the URL it was downloaded from."""
 
-            # FIXME: Add logic to build and install here.
-            make()
-            make('install')""",
-
-            'scons':     """\
-        # FIXME: Add logic to build and install here.
-        scons('prefix={0}'.format(prefix))
-        scons('install')""",
-
-            'python':    """\
-        # FIXME: Add logic to build and install here.
-        python('setup.py', 'install', '--prefix={0}'.format(prefix))""",
-
-            'R':         """\
-        # FIXME: Add logic to build and install here.
-        R('CMD', 'INSTALL', '--library={0}'.format(self.module.r_lib_dir),
-          self.stage.source_path)""",
-
-            'unknown':   """\
-        # FIXME: Unknown build system
-        make()
-        make('install')"""
-        }
+        # Most octave extensions are hosted on Octave-Forge:
+        #     http://octave.sourceforge.net/index.html
+        # They all have the same base URL.
+        if 'downloads.sourceforge.net/octave/' in url:
+            self.build_system = 'octave'
+            return
 
         # A list of clues that give us an idea of the build system a package
         # uses. If the regular expression matches a file contained in the
@@ -224,12 +239,6 @@ class ConfigureGuesser(object):
 
         self.build_system = build_system
 
-        # Set any necessary build dependencies or extensions.
-        self.dependencies = dependenciesDict[build_system]
-
-        # Set the appropriate default installation instructions
-        self.install = installDict[build_system]
-
 
 def guess_name_and_version(url, args):
     # Try to deduce name and version of the new package from the URL
@@ -334,8 +343,8 @@ def create(parser, args):
     # Fetch tarballs (prompting user if necessary)
     versions, urls = fetch_tarballs(url, name, version)
 
-    # Try to guess what configure system is used.
-    guesser = ConfigureGuesser()
+    # Try to guess what build system is used.
+    guesser = BuildSystemGuesser()
     ver_hash_tuples = spack.cmd.checksum.get_checksums(
         versions, urls,
         first_stage_function=guesser,
@@ -344,13 +353,13 @@ def create(parser, args):
     if not ver_hash_tuples:
         tty.die("Could not fetch any tarballs for %s" % name)
 
-    # Prepend 'py-' to python package names, by convention.
+    # Add prefix to package name if it is an extension.
     if guesser.build_system == 'python':
-        name = 'py-%s' % name
-
-    # Prepend 'r-' to R package names, by convention.
+        name = 'py-{0}'.format(name)
     if guesser.build_system == 'R':
-        name = 'r-%s' % name
+        name = 'r-{0}'.format(name)
+    if guesser.build_system == 'octave':
+        name = 'octave-{0}'.format(name)
 
     # Create a directory for the new package.
     pkg_path = repo.filename_for_package_name(name)
@@ -367,8 +376,8 @@ def create(parser, args):
                 class_name=mod_to_class(name),
                 url=url,
                 versions=make_version_calls(ver_hash_tuples),
-                dependencies=guesser.dependencies,
-                install=guesser.install))
+                dependencies=dependencies_dict[guesser.build_system],
+                install=install_dict[guesser.build_system]))
 
     # If everything checks out, go ahead and edit.
     spack.editor(pkg_path)
diff --git a/lib/spack/spack/cmd/package-list.py b/lib/spack/spack/cmd/package-list.py
index bc64c77eab..a27502d30e 100644
--- a/lib/spack/spack/cmd/package-list.py
+++ b/lib/spack/spack/cmd/package-list.py
@@ -22,10 +22,8 @@
 # License along with this program; if not, write to the Free Software
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 ##############################################################################
-import re
 import cgi
 from StringIO import StringIO
-import llnl.util.tty as tty
 from llnl.util.tty.colify import *
 import spack
 
@@ -34,21 +32,22 @@ description = "Print a list of all packages in reStructuredText."
 
 def github_url(pkg):
     """Link to a package file on github."""
-    return ("https://github.com/llnl/spack/blob/master/var/spack/packages/%s/package.py" %
-            pkg.name)
+    url = "https://github.com/llnl/spack/blob/master/var/spack/packages/%s/package.py"  # NOQA: ignore=E501
+    return (url % pkg.name)
 
 
 def rst_table(elts):
     """Print out a RST-style table."""
     cols = StringIO()
     ncol, widths = colify(elts, output=cols, tty=True)
-    header = " ".join("=" * (w-1) for w in widths)
+    header = " ".join("=" * (w - 1) for w in widths)
     return "%s\n%s%s" % (header, cols.getvalue(), header)
 
 
 def print_rst_package_list():
     """Print out information on all packages in restructured text."""
-    pkgs = sorted(spack.repo.all_packages(), key=lambda s:s.name.lower())
+    pkgs = sorted(spack.repo.all_packages(), key=lambda s: s.name.lower())
+    pkg_names = [p.name for p in pkgs]
 
     print ".. _package-list:"
     print
@@ -62,7 +61,7 @@ def print_rst_package_list():
 
     print "Spack currently has %d mainline packages:" % len(pkgs)
     print
-    print rst_table("`%s`_" % p.name for p in pkgs)
+    print rst_table("`%s`_" % p for p in pkg_names)
     print
     print "-----"
 
@@ -79,14 +78,15 @@ def print_rst_package_list():
         print
         if pkg.versions:
             print "Versions:"
-            print "  " + ", ".join(str(v) for v in reversed(sorted(pkg.versions)))
+            print "  " + ", ".join(str(v) for v in
+                                   reversed(sorted(pkg.versions)))
 
-        for deptype in ('build', 'link', 'run'):
-            deps = pkg.dependencies(deptype)
+        for deptype in spack.alldeps:
+            deps = pkg.dependencies_of_type(deptype)
             if deps:
                 print "%s Dependencies" % deptype.capitalize()
-                print "  " + ", ".join("`%s`_" % d if d != "mpi" else d
-                                       for d in build_deps)
+                print "  " + ", ".join("%s_" % d if d in pkg_names
+                                       else d for d in deps)
                 print
 
         print "Description:"
diff --git a/lib/spack/spack/platforms/cray_xc.py b/lib/spack/spack/platforms/cray_xc.py
index e710303e23..8dc575bb71 100644
--- a/lib/spack/spack/platforms/cray_xc.py
+++ b/lib/spack/spack/platforms/cray_xc.py
@@ -2,6 +2,7 @@ import os
 from spack.architecture import Platform, Target
 from spack.operating_systems.linux_distro import LinuxDistro
 from spack.operating_systems.cnl import Cnl
+from spack.util.executable import which
 
 class CrayXc(Platform):
     priority    = 20
@@ -42,5 +43,11 @@ class CrayXc(Platform):
 
     @classmethod
     def detect(self):
-        return os.path.exists('/opt/cray/craype')
+        if os.path.exists('/cray_home'):
+            cc_verbose = which('cc')
+            cc_verbose.add_default_arg('-craype-verbose')
+            text = cc_verbose(output=str, error=str, ignore_errors=True).split()
+            if '-D__CRAYXC' in text:
+                return True
+        return False
 
diff --git a/lib/spack/spack/preferred_packages.py b/lib/spack/spack/preferred_packages.py
index 4820584150..1b94f03de7 100644
--- a/lib/spack/spack/preferred_packages.py
+++ b/lib/spack/spack/preferred_packages.py
@@ -26,8 +26,10 @@
 import spack
 from spack.version import *
 
+
 class PreferredPackages(object):
-    _default_order = {'compiler' : [ 'gcc', 'intel', 'clang', 'pgi', 'xlc' ] } # Arbitrary, but consistent
+    # Arbitrary, but consistent
+    _default_order = {'compiler': ['gcc', 'intel', 'clang', 'pgi', 'xlc']}
 
     def __init__(self):
         self.preferred = spack.config.get_config('packages')
@@ -35,24 +37,25 @@ class PreferredPackages(object):
 
     # Given a package name, sort component (e.g, version, compiler, ...), and
     # a second_key (used by providers), return the list
-    def _order_for_package(self, pkgname, component, second_key, test_all=True):
+    def _order_for_package(self, pkgname, component, second_key,
+                           test_all=True):
         pkglist = [pkgname]
         if test_all:
             pkglist.append('all')
         for pkg in pkglist:
             order = self.preferred.get(pkg, {}).get(component, {})
-            if type(order) is dict:
+            if isinstance(order, dict) and second_key:
                 order = order.get(second_key, {})
             if not order:
                 continue
             return [str(s).strip() for s in order]
         return []
 
-
     # A generic sorting function. Given a package name and sort
     # component, return less-than-0, 0, or greater-than-0 if
     # a is respectively less-than, equal to, or greater than b.
-    def _component_compare(self, pkgname, component, a, b, reverse_natural_compare, second_key):
+    def _component_compare(self, pkgname, component, a, b,
+                           reverse_natural_compare, second_key):
         if a is None:
             return -1
         if b is None:
@@ -84,92 +87,102 @@ class PreferredPackages(object):
         else:
             return 0
 
-
     # A sorting function for specs.  Similar to component_compare, but
     # a and b are considered to match entries in the sorting list if they
     # satisfy the list component.
-    def _spec_compare(self, pkgname, component, a, b, reverse_natural_compare, second_key):
-        if not a or not a.concrete:
+    def _spec_compare(self, pkgname, component, a, b,
+                      reverse_natural_compare, second_key):
+        if not a or (not a.concrete and not second_key):
             return -1
-        if not b or not b.concrete:
+        if not b or (not b.concrete and not second_key):
             return 1
         specs = self._spec_for_pkgname(pkgname, component, second_key)
         a_index = None
         b_index = None
         reverse = -1 if reverse_natural_compare else 1
         for i, cspec in enumerate(specs):
-            if a_index == None and (cspec.satisfies(a) or a.satisfies(cspec)):
+            if a_index is None and (cspec.satisfies(a) or a.satisfies(cspec)):
                 a_index = i
                 if b_index:
                     break
-            if b_index == None and (cspec.satisfies(b) or b.satisfies(cspec)):
+            if b_index is None and (cspec.satisfies(b) or b.satisfies(cspec)):
                 b_index = i
                 if a_index:
                     break
 
-        if   a_index != None and b_index == None: return -1
-        elif a_index == None and b_index != None: return 1
-        elif a_index != None and b_index == a_index: return -1 * cmp(a, b)
-        elif a_index != None and b_index != None and a_index != b_index: return cmp(a_index, b_index)
-        else: return cmp(a, b) * reverse
-
-
+        if a_index is not None and b_index is None:
+            return -1
+        elif a_index is None and b_index is not None:
+            return 1
+        elif a_index is not None and b_index == a_index:
+            return -1 * cmp(a, b)
+        elif (a_index is not None and b_index is not None and
+              a_index != b_index):
+            return cmp(a_index, b_index)
+        else:
+            return cmp(a, b) * reverse
 
     # Given a sort order specified by the pkgname/component/second_key, return
     # a list of CompilerSpecs, VersionLists, or Specs for that sorting list.
     def _spec_for_pkgname(self, pkgname, component, second_key):
         key = (pkgname, component, second_key)
-        if not key in self._spec_for_pkgname_cache:
+        if key not in self._spec_for_pkgname_cache:
             pkglist = self._order_for_package(pkgname, component, second_key)
             if not pkglist:
                 if component in self._default_order:
                     pkglist = self._default_order[component]
             if component == 'compiler':
-                self._spec_for_pkgname_cache[key] = [spack.spec.CompilerSpec(s) for s in pkglist]
+                self._spec_for_pkgname_cache[key] = \
+                    [spack.spec.CompilerSpec(s) for s in pkglist]
             elif component == 'version':
-                self._spec_for_pkgname_cache[key] = [VersionList(s) for s in pkglist]
+                self._spec_for_pkgname_cache[key] = \
+                    [VersionList(s) for s in pkglist]
             else:
-                self._spec_for_pkgname_cache[key] = [spack.spec.Spec(s) for s in pkglist]
+                self._spec_for_pkgname_cache[key] = \
+                    [spack.spec.Spec(s) for s in pkglist]
         return self._spec_for_pkgname_cache[key]
 
-
     def provider_compare(self, pkgname, provider_str, a, b):
-        """Return less-than-0, 0, or greater than 0 if a is respecively less-than, equal-to, or
-           greater-than b. A and b are possible implementations of provider_str.
-           One provider is less-than another if it is preferred over the other.
-           For example, provider_compare('scorep', 'mpi', 'mvapich', 'openmpi') would return -1 if
-           mvapich should be preferred over openmpi for scorep."""
-        return self._spec_compare(pkgname, 'providers', a, b, False, provider_str)
-
+        """Return less-than-0, 0, or greater than 0 if a is respecively
+           less-than, equal-to, or greater-than b. A and b are possible
+           implementations of provider_str. One provider is less-than another
+           if it is preferred over the other. For example,
+           provider_compare('scorep', 'mpi', 'mvapich', 'openmpi') would
+           return -1 if mvapich should be preferred over openmpi for scorep."""
+        return self._spec_compare(pkgname, 'providers', a, b, False,
+                                  provider_str)
 
     def spec_has_preferred_provider(self, pkgname, provider_str):
-        """Return True iff the named package has a list of preferred provider"""
-        return bool(self._order_for_package(pkgname, 'providers', provider_str, False))
-
+        """Return True iff the named package has a list of preferred
+           providers"""
+        return bool(self._order_for_package(pkgname, 'providers',
+                    provider_str, False))
 
     def version_compare(self, pkgname, a, b):
         """Return less-than-0, 0, or greater than 0 if version a of pkgname is
-           respecively less-than, equal-to, or greater-than version b of pkgname.
-           One version is less-than another if it is preferred over the other."""
+           respectively less-than, equal-to, or greater-than version b of
+           pkgname. One version is less-than another if it is preferred over
+           the other."""
         return self._spec_compare(pkgname, 'version', a, b, True, None)
 
-
     def variant_compare(self, pkgname, a, b):
         """Return less-than-0, 0, or greater than 0 if variant a of pkgname is
-           respecively less-than, equal-to, or greater-than variant b of pkgname.
-           One variant is less-than another if it is preferred over the other."""
+           respectively less-than, equal-to, or greater-than variant b of
+           pkgname. One variant is less-than another if it is preferred over
+           the other."""
         return self._component_compare(pkgname, 'variant', a, b, False, None)
 
-
     def architecture_compare(self, pkgname, a, b):
-        """Return less-than-0, 0, or greater than 0 if architecture a of pkgname is
-           respecively less-than, equal-to, or greater-than architecture b of pkgname.
-           One architecture is less-than another if it is preferred over the other."""
-        return self._component_compare(pkgname, 'architecture', a, b, False, None)
-
+        """Return less-than-0, 0, or greater than 0 if architecture a of pkgname
+           is respectively less-than, equal-to, or greater-than architecture b
+           of pkgname. One architecture is less-than another if it is preferred
+           over the other."""
+        return self._component_compare(pkgname, 'architecture', a, b,
+                                       False, None)
 
     def compiler_compare(self, pkgname, a, b):
         """Return less-than-0, 0, or greater than 0 if compiler a of pkgname is
-           respecively less-than, equal-to, or greater-than compiler b of pkgname.
-           One compiler is less-than another if it is preferred over the other."""
+           respecively less-than, equal-to, or greater-than compiler b of
+           pkgname. One compiler is less-than another if it is preferred over
+           the other."""
         return self._spec_compare(pkgname, 'compiler', a, b, False, None)
diff --git a/lib/spack/spack/test/__init__.py b/lib/spack/spack/test/__init__.py
index bf46e011b1..a849d5f350 100644
--- a/lib/spack/spack/test/__init__.py
+++ b/lib/spack/spack/test/__init__.py
@@ -32,17 +32,17 @@ from llnl.util.tty.colify import colify
 from spack.test.tally_plugin import Tally
 """Names of tests to be included in Spack's test suite"""
 
-test_names = ['architecture', 'versions', 'url_parse', 'url_substitution',
-              'packages', 'stage',
-              'spec_syntax', 'spec_semantics', 'spec_dag', 'concretize',
-              'multimethod', 'install', 'package_sanity', 'config',
-              'directory_layout', 'pattern', 'python_version', 'git_fetch',
-              'svn_fetch', 'hg_fetch', 'mirror', 'modules', 'url_extrapolate',
-              'cc', 'link_tree', 'spec_yaml', 'optional_deps',
-              'make_executable', 'configure_guess', 'lock', 'database',
-              'namespace_trie', 'yaml', 'sbang', 'environment', 'cmd.find',
-              'cmd.uninstall', 'cmd.test_install',
-              'cmd.test_compiler_cmd', 'cmd.module']
+test_names = [
+    'architecture', 'versions', 'url_parse', 'url_substitution', 'packages',
+    'stage', 'spec_syntax', 'spec_semantics', 'spec_dag', 'concretize',
+    'multimethod', 'install', 'package_sanity', 'config', 'directory_layout',
+    'pattern', 'python_version', 'git_fetch', 'svn_fetch', 'hg_fetch',
+    'mirror', 'modules', 'url_extrapolate', 'cc', 'link_tree', 'spec_yaml',
+    'optional_deps', 'make_executable', 'build_system_guess', 'lock',
+    'database', 'namespace_trie', 'yaml', 'sbang', 'environment', 'cmd.find',
+    'cmd.uninstall', 'cmd.test_install', 'cmd.test_compiler_cmd',
+    'cmd.module'
+]
 
 
 def list_tests():
diff --git a/lib/spack/spack/test/configure_guess.py b/lib/spack/spack/test/build_system_guess.py
index bad3673e7a..e728a47cf4 100644
--- a/lib/spack/spack/test/configure_guess.py
+++ b/lib/spack/spack/test/build_system_guess.py
@@ -28,14 +28,14 @@ import tempfile
 import unittest
 
 from llnl.util.filesystem import *
-from spack.cmd.create import ConfigureGuesser
+from spack.cmd.create import BuildSystemGuesser
 from spack.stage import Stage
 from spack.test.mock_packages_test import *
 from spack.util.executable import which
 
 
 class InstallTest(unittest.TestCase):
-    """Tests the configure guesser in spack create"""
+    """Tests the build system guesser in spack create"""
 
     def setUp(self):
         self.tar = which('tar')
@@ -44,12 +44,10 @@ class InstallTest(unittest.TestCase):
         os.chdir(self.tmpdir)
         self.stage = None
 
-
     def tearDown(self):
         shutil.rmtree(self.tmpdir, ignore_errors=True)
         os.chdir(self.orig_dir)
 
-
     def check_archive(self, filename, system):
         mkdirp('archive')
         touch(join_path('archive', filename))
@@ -60,24 +58,24 @@ class InstallTest(unittest.TestCase):
         with Stage(url) as stage:
             stage.fetch()
 
-            guesser = ConfigureGuesser()
-            guesser(stage)
+            guesser = BuildSystemGuesser()
+            guesser(stage, url)
             self.assertEqual(system, guesser.build_system)
 
-
-    def test_python(self):
-        self.check_archive('setup.py', 'python')
-
-
     def test_autotools(self):
         self.check_archive('configure', 'autotools')
 
-
     def test_cmake(self):
         self.check_archive('CMakeLists.txt', 'cmake')
 
+    def test_scons(self):
+        self.check_archive('SConstruct', 'scons')
 
-    def test_unknown(self):
-        self.check_archive('foobar', 'unknown')
+    def test_python(self):
+        self.check_archive('setup.py', 'python')
 
+    def test_R(self):
+        self.check_archive('NAMESPACE', 'R')
 
+    def test_unknown(self):
+        self.check_archive('foobar', 'unknown')
diff --git a/lib/spack/spack/test/modules.py b/lib/spack/spack/test/modules.py
index 6d2e3705bd..135cd028e3 100644
--- a/lib/spack/spack/test/modules.py
+++ b/lib/spack/spack/test/modules.py
@@ -27,7 +27,6 @@ from contextlib import contextmanager
 
 import StringIO
 import spack.modules
-import unittest
 from spack.test.mock_packages_test import MockPackagesTest
 
 FILE_REGISTRY = collections.defaultdict(StringIO.StringIO)
@@ -266,7 +265,7 @@ class TclTests(MockPackagesTest):
 
     def test_blacklist(self):
         spack.modules.CONFIGURATION = configuration_blacklist
-        spec = spack.spec.Spec('mpileaks')
+        spec = spack.spec.Spec('mpileaks ^zmpi')
         content = self.get_modulefile_content(spec)
         self.assertEqual(len([x for x in content if 'is-loaded' in x]), 1)
         self.assertEqual(len([x for x in content if 'module load ' in x]), 1)
diff --git a/var/spack/repos/builtin/packages/cmake/package.py b/var/spack/repos/builtin/packages/cmake/package.py
index b39b086396..bfb8764feb 100644
--- a/var/spack/repos/builtin/packages/cmake/package.py
+++ b/var/spack/repos/builtin/packages/cmake/package.py
@@ -30,6 +30,7 @@ class Cmake(Package):
     homepage  = 'https://www.cmake.org'
     url       = 'https://cmake.org/files/v3.4/cmake-3.4.3.tar.gz'
 
+    version('3.6.0',    'aa40fbecf49d99c083415c2411d12db9')
     version('3.5.2',    '701386a1b5ec95f8d1075ecf96383e02')
     version('3.5.1',    'ca051f4a66375c89d1a524e726da0296')
     version('3.5.0',    '33c5d09d4c33d4ffcc63578a6ba8777e')
diff --git a/var/spack/repos/builtin/packages/jasper/fix_alpha_channel_assert_fail.patch b/var/spack/repos/builtin/packages/jasper/fix_alpha_channel_assert_fail.patch
new file mode 100644
index 0000000000..cbf79ff971
--- /dev/null
+++ b/var/spack/repos/builtin/packages/jasper/fix_alpha_channel_assert_fail.patch
@@ -0,0 +1,25 @@
+diff --git a/src/libjasper/jpc/jpc_dec.c b/src/libjasper/jpc/jpc_dec.c
+index fa72a0e..1f4845f 100644
+--- a/src/libjasper/jpc/jpc_dec.c
++++ b/src/libjasper/jpc/jpc_dec.c
+@@ -1069,12 +1069,18 @@ static int jpc_dec_tiledecode(jpc_dec_t *dec, jpc_dec_tile_t *tile)
+	/* Apply an inverse intercomponent transform if necessary. */
+	switch (tile->cp->mctid) {
+	case JPC_MCT_RCT:
+-		assert(dec->numcomps == 3);
++		if (dec->numcomps != 3 && dec->numcomps != 4) {
++			jas_eprintf("bad number of components (%d)\n", dec->numcomps);
++			return -1;
++		}
+		jpc_irct(tile->tcomps[0].data, tile->tcomps[1].data,
+		  tile->tcomps[2].data);
+		break;
+	case JPC_MCT_ICT:
+-		assert(dec->numcomps == 3);
++		if (dec->numcomps != 3 && dec->numcomps != 4) {
++			jas_eprintf("bad number of components (%d)\n", dec->numcomps);
++			return -1;
++		}
+		jpc_iict(tile->tcomps[0].data, tile->tcomps[1].data,
+		  tile->tcomps[2].data);
+		break;
diff --git a/var/spack/repos/builtin/packages/jasper/package.py b/var/spack/repos/builtin/packages/jasper/package.py
new file mode 100644
index 0000000000..f450c7d155
--- /dev/null
+++ b/var/spack/repos/builtin/packages/jasper/package.py
@@ -0,0 +1,63 @@
+##############################################################################
+# Copyright (c) 2013-2016, Lawrence Livermore National Security, LLC.
+# Produced at the Lawrence Livermore National Laboratory.
+#
+# This file is part of Spack.
+# Created by Todd Gamblin, tgamblin@llnl.gov, All rights reserved.
+# LLNL-CODE-647188
+#
+# For details, see https://github.com/llnl/spack
+# Please also see the LICENSE file for our notice and the LGPL.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License (as
+# published by the Free Software Foundation) version 2.1, February 1999.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
+# conditions of the GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+##############################################################################
+from spack import *
+
+
+class Jasper(Package):
+    """Library for manipulating JPEG-2000 images"""
+
+    homepage = "https://www.ece.uvic.ca/~frodo/jasper/"
+    url = "https://www.ece.uvic.ca/~frodo/jasper/software/jasper-1.900.1.zip"
+
+    version('1.900.1', 'a342b2b4495b3e1394e161eb5d85d754')
+
+    variant('shared', default=True,
+            description='Builds shared versions of the libraries')
+    variant('debug', default=False,
+            description='Builds debug versions of the libraries')
+
+    depends_on('libjpeg-turbo')
+
+    # Fixes a bug (still in upstream as of v.1.900.1) where an assertion fails
+    # when certain JPEG-2000 files with an alpha channel are processed
+    # see: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=469786
+    patch('fix_alpha_channel_assert_fail.patch')
+
+    def install(self, spec, prefix):
+        configure_options = [
+            '--prefix={0}'.format(prefix),
+            '--mandir={0}'.format(spec.prefix.man),
+        ]
+
+        if '+shared' in spec:
+            configure_options.append('--enable-shared')
+
+        if '+debug' not in spec:
+            configure_options.append('--disable-debug')
+
+        configure(*configure_options)
+
+        make()
+        make('install')
diff --git a/var/spack/repos/builtin/packages/mkl/package.py b/var/spack/repos/builtin/packages/mkl/package.py
index 454e78d29c..6ea64f5313 100644
--- a/var/spack/repos/builtin/packages/mkl/package.py
+++ b/var/spack/repos/builtin/packages/mkl/package.py
@@ -9,7 +9,13 @@ class Mkl(IntelInstaller):
 
     Note: You will have to add the download file to a
     mirror so that Spack can find it. For instructions on how to set up a
-    mirror, see http://software.llnl.gov/spack/mirrors.html"""
+    mirror, see http://software.llnl.gov/spack/mirrors.html.
+
+    To set the threading layer at run time set MKL_THREADING_LAYER
+    variable to one of the following values: INTEL, SEQUENTIAL, PGI.
+    To set interface layer at run time, use set the MKL_INTERFACE_LAYER
+    variable to LP64 or ILP64.
+    """
 
     homepage = "https://software.intel.com/en-us/intel-mkl"
 
@@ -18,6 +24,11 @@ class Mkl(IntelInstaller):
     version('11.3.3.210', 'f72546df27f5ebb0941b5d21fd804e34',
             url="file://%s/l_mkl_11.3.3.210.tgz" % os.getcwd())
 
+    # virtual dependency
+    provides('blas')
+    provides('lapack')
+    # TODO: MKL also provides implementation of Scalapack.
+
     def install(self, spec, prefix):
 
         self.intel_prefix = os.path.join(prefix, "pkg")
@@ -26,3 +37,28 @@ class Mkl(IntelInstaller):
         mkl_dir = os.path.join(self.intel_prefix, "mkl")
         for f in os.listdir(mkl_dir):
             os.symlink(os.path.join(mkl_dir, f), os.path.join(self.prefix, f))
+
+    def setup_dependent_package(self, module, dspec):
+        # For now use Single Dynamic Library:
+        # To set the threading layer at run time, use the
+        # mkl_set_threading_layer function or set MKL_THREADING_LAYER
+        # variable to one of the following values: INTEL, SEQUENTIAL, PGI.
+        # To set interface layer at run time, use the mkl_set_interface_layer
+        # function or set the MKL_INTERFACE_LAYER variable to LP64 or ILP64.
+
+        # Otherwise one would need to specify several libraries
+        # (e.g. mkl_intel_lp64;mkl_sequential;mkl_core), which reflect
+        # different interface and threading layers.
+
+        name = 'libmkl_rt.%s' % dso_suffix
+        libdir = find_library_path(name, self.prefix.lib64, self.prefix.lib)
+
+        self.spec.blas_shared_lib   = join_path(libdir, name)
+        self.spec.lapack_shared_lib = self.spec.blas_shared_lib
+
+    def setup_dependent_environment(self, spack_env, run_env, dependent_spec):
+        # set up MKLROOT for everyone using MKL package
+        spack_env.set('MKLROOT', self.prefix)
+
+    def setup_environment(self, spack_env, env):
+        env.set('MKLROOT', self.prefix)
diff --git a/var/spack/repos/builtin/packages/mumps/package.py b/var/spack/repos/builtin/packages/mumps/package.py
index 92c45c9b95..b85a6d2b94 100644
--- a/var/spack/repos/builtin/packages/mumps/package.py
+++ b/var/spack/repos/builtin/packages/mumps/package.py
@@ -23,7 +23,10 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 ##############################################################################
 from spack import *
-import os, sys, glob
+import os
+import sys
+import glob
+
 
 class Mumps(Package):
     """MUMPS: a MUltifrontal Massively Parallel sparse direct Solver"""
@@ -44,13 +47,11 @@ class Mumps(Package):
     variant('idx64', default=False, description='Use int64_t/integer*8 as default index type')
     variant('shared', default=True, description='Build shared libraries')
 
-
     depends_on('scotch + esmumps', when='~ptscotch+scotch')
     depends_on('scotch + esmumps + mpi', when='+ptscotch')
     depends_on('metis@5:', when='+metis')
     depends_on('parmetis', when="+parmetis")
     depends_on('blas')
-    depends_on('lapack')
     depends_on('scalapack', when='+mpi')
     depends_on('mpi', when='+mpi')
 
@@ -60,42 +61,52 @@ class Mumps(Package):
     # end before install
     # def patch(self):
     def write_makefile_inc(self):
-        if ('+parmetis' in self.spec or '+ptscotch' in self.spec) and '+mpi' not in self.spec:
-            raise RuntimeError('You cannot use the variants parmetis or ptscotch without mpi')
+        if ('+parmetis' in self.spec or '+ptscotch' in self.spec) and '+mpi' not in self.spec:  # NOQA: ignore=E501
+            raise RuntimeError('You cannot use the variants parmetis or ptscotch without mpi')  # NOQA: ignore=E501
 
-        makefile_conf = ["LIBBLAS = -L%s -lblas" % self.spec['blas'].prefix.lib]
+        makefile_conf = ["LIBBLAS = %s" % to_link_flags(
+            self.spec['blas'].blas_shared_lib)
+        ]
 
         orderings = ['-Dpord']
 
         if '+ptscotch' in self.spec or '+scotch' in self.spec:
             join_lib = ' -l%s' % ('pt' if '+ptscotch' in self.spec else '')
-            makefile_conf.extend(
-                ["ISCOTCH = -I%s" % self.spec['scotch'].prefix.include,
-                 "LSCOTCH = -L%s %s%s" % (self.spec['scotch'].prefix.lib,
-                                          join_lib,
-                                          join_lib.join(['esmumps', 'scotch', 'scotcherr']))])
+            makefile_conf.extend([
+                "ISCOTCH = -I%s" % self.spec['scotch'].prefix.include,
+                "LSCOTCH = -L%s %s%s" % (self.spec['scotch'].prefix.lib,
+                                         join_lib,
+                                         join_lib.join(['esmumps',
+                                                        'scotch',
+                                                        'scotcherr']))
+            ])
+
             orderings.append('-Dscotch')
             if '+ptscotch' in self.spec:
                 orderings.append('-Dptscotch')
 
         if '+parmetis' in self.spec and '+metis' in self.spec:
-            libname = 'parmetis' if '+parmetis' in self.spec else 'metis'
-            makefile_conf.extend(
-                ["IMETIS = -I%s" % self.spec['parmetis'].prefix.include,
-                 "LMETIS = -L%s -l%s -L%s -l%s" % (self.spec['parmetis'].prefix.lib, 'parmetis',self.spec['metis'].prefix.lib, 'metis')])
+            makefile_conf.extend([
+                "IMETIS = -I%s" % self.spec['parmetis'].prefix.include,
+                "LMETIS = -L%s -l%s -L%s -l%s" % (
+                    self.spec['parmetis'].prefix.lib, 'parmetis',
+                    self.spec['metis'].prefix.lib, 'metis')
+            ])
 
             orderings.append('-Dparmetis')
         elif '+metis' in self.spec:
-            makefile_conf.extend(
-                ["IMETIS = -I%s" % self.spec['metis'].prefix.include,
-                 "LMETIS = -L%s -l%s" % (self.spec['metis'].prefix.lib, 'metis')])
+            makefile_conf.extend([
+                "IMETIS = -I%s" % self.spec['metis'].prefix.include,
+                "LMETIS = -L%s -l%s" % (self.spec['metis'].prefix.lib, 'metis')
+            ])
 
             orderings.append('-Dmetis')
 
         makefile_conf.append("ORDERINGSF = %s" % (' '.join(orderings)))
 
         # when building shared libs need -fPIC, otherwise
-        # /usr/bin/ld: graph.o: relocation R_X86_64_32 against `.rodata.str1.1' can not be used when making a shared object; recompile with -fPIC
+        # /usr/bin/ld: graph.o: relocation R_X86_64_32 against `.rodata.str1.1'
+        # can not be used when making a shared object; recompile with -fPIC
         fpic = '-fPIC' if '+shared' in self.spec else ''
         # TODO: test this part, it needs a full blas, scalapack and
         # partitionning environment with 64bit integers
@@ -104,7 +115,7 @@ class Mumps(Package):
                 # the fortran compilation flags most probably are
                 # working only for intel and gnu compilers this is
                 # perhaps something the compiler should provide
-                ['OPTF    = %s -O  -DALLOW_NON_INIT %s' % (fpic,'-fdefault-integer-8' if self.compiler.name == "gcc" else '-i8'),
+                ['OPTF    = %s -O  -DALLOW_NON_INIT %s' % (fpic, '-fdefault-integer-8' if self.compiler.name == "gcc" else '-i8'),  # NOQA: ignore=E501
                  'OPTL    = %s -O ' % fpic,
                  'OPTC    = %s -O -DINTSIZE64' % fpic])
         else:
@@ -113,7 +124,6 @@ class Mumps(Package):
                  'OPTL    = %s -O ' % fpic,
                  'OPTC    = %s -O ' % fpic])
 
-
         if '+mpi' in self.spec:
             makefile_conf.extend(
                 ["CC = %s" % join_path(self.spec['mpi'].prefix.bin, 'mpicc'),
@@ -134,16 +144,17 @@ class Mumps(Package):
 
         if '+shared' in self.spec:
             if sys.platform == 'darwin':
-                # Building dylibs with mpif90 causes segfaults on 10.8 and 10.10. Use gfortran. (Homebrew)
+                # Building dylibs with mpif90 causes segfaults on 10.8 and
+                # 10.10. Use gfortran. (Homebrew)
                 makefile_conf.extend([
                     'LIBEXT=.dylib',
-                    'AR=%s -dynamiclib -Wl,-install_name -Wl,%s/$(notdir $@) -undefined dynamic_lookup -o ' % (os.environ['FC'],prefix.lib),
+                    'AR=%s -dynamiclib -Wl,-install_name -Wl,%s/$(notdir $@) -undefined dynamic_lookup -o ' % (os.environ['FC'], prefix.lib),  # NOQA: ignore=E501
                     'RANLIB=echo'
                 ])
             else:
                 makefile_conf.extend([
                     'LIBEXT=.so',
-                    'AR=$(FL) -shared -Wl,-soname -Wl,%s/$(notdir $@) -o' % prefix.lib,
+                    'AR=$(FL) -shared -Wl,-soname -Wl,%s/$(notdir $@) -o' % prefix.lib,  # NOQA: ignore=E501
                     'RANLIB=echo'
                 ])
         else:
@@ -153,9 +164,8 @@ class Mumps(Package):
                 'RANLIB = ranlib'
             ])
 
-
-        makefile_inc_template = join_path(os.path.dirname(self.module.__file__),
-                                          'Makefile.inc')
+        makefile_inc_template = join_path(
+            os.path.dirname(self.module.__file__), 'Makefile.inc')
         with open(makefile_inc_template, "r") as fh:
             makefile_conf.extend(fh.read().split('\n'))
 
@@ -164,8 +174,6 @@ class Mumps(Package):
                 makefile_inc = '\n'.join(makefile_conf)
                 fh.write(makefile_inc)
 
-
-
     def install(self, spec, prefix):
         make_libs = []
 
@@ -189,15 +197,15 @@ class Mumps(Package):
         install_tree('lib', prefix.lib)
         install_tree('include', prefix.include)
 
-        if '~mpi' in spec:            
+        if '~mpi' in spec:
             lib_dsuffix = '.dylib' if sys.platform == 'darwin' else '.so'
             lib_suffix = lib_dsuffix if '+shared' in spec else '.a'
             install('libseq/libmpiseq%s' % lib_suffix, prefix.lib)
-            for f in glob.glob(join_path('libseq','*.h')):
+            for f in glob.glob(join_path('libseq', '*.h')):
                 install(f, prefix.include)
 
-        # FIXME: extend the tests to mpirun -np 2 (or alike) when build with MPI
-        # FIXME: use something like numdiff to compare blessed output with the current
+        # FIXME: extend the tests to mpirun -np 2 when build with MPI
+        # FIXME: use something like numdiff to compare output files
         with working_dir('examples'):
             if '+float' in spec:
                 os.system('./ssimpletest < input_simpletest_real')
diff --git a/var/spack/repos/builtin/packages/netlib-scalapack/package.py b/var/spack/repos/builtin/packages/netlib-scalapack/package.py
index a8250a38de..f7733249cf 100644
--- a/var/spack/repos/builtin/packages/netlib-scalapack/package.py
+++ b/var/spack/repos/builtin/packages/netlib-scalapack/package.py
@@ -25,8 +25,10 @@
 from spack import *
 import sys
 
+
 class NetlibScalapack(Package):
-    """ScaLAPACK is a library of high-performance linear algebra routines for parallel distributed memory machines"""
+    """ScaLAPACK is a library of high-performance linear algebra routines for
+    parallel distributed memory machines"""
 
     homepage = "http://www.netlib.org/scalapack/"
     url      = "http://www.netlib.org/scalapack/scalapack-2.0.2.tgz"
@@ -48,10 +50,22 @@ class NetlibScalapack(Package):
 
     def install(self, spec, prefix):
         options = [
-            "-DBUILD_SHARED_LIBS:BOOL=%s" % ('ON' if '+shared' in spec else 'OFF'),
-            "-DBUILD_STATIC_LIBS:BOOL=%s" % ('OFF' if '+shared' in spec else 'ON'),
-            "-DUSE_OPTIMIZED_LAPACK_BLAS:BOOL=ON", # forces scalapack to use find_package(LAPACK)
-            ]
+            "-DBUILD_SHARED_LIBS:BOOL=%s" % ('ON' if '+shared' in spec else
+                                             'OFF'),
+            "-DBUILD_STATIC_LIBS:BOOL=%s" % ('OFF' if '+shared' in spec else
+                                             'ON'),
+            # forces scalapack to use find_package(LAPACK):
+            "-DUSE_OPTIMIZED_LAPACK_BLAS:BOOL=ON",
+        ]
+
+        # Make sure we use Spack's Lapack:
+        options.extend([
+            '-DLAPACK_FOUND=true',
+            '-DLAPACK_INCLUDE_DIRS=%s' % spec['lapack'].prefix.include,
+            '-DLAPACK_LIBRARIES=%s' % (
+                spec['lapack'].lapack_shared_lib if '+shared' in spec else
+                spec['lapack'].lapack_static_lib),
+        ])
 
         if '+fpic' in spec:
             options.extend([
@@ -66,16 +80,15 @@ class NetlibScalapack(Package):
             make()
             make("install")
 
-        # The shared libraries are not installed correctly on Darwin; correct this
+        # The shared libraries are not installed correctly on Darwin:
         if (sys.platform == 'darwin') and ('+shared' in spec):
             fix_darwin_install_name(prefix.lib)
 
-
     def setup_dependent_package(self, module, dependent_spec):
         spec = self.spec
-        lib_dsuffix = '.dylib' if sys.platform == 'darwin' else '.so'
-        lib_suffix = lib_dsuffix if '+shared' in spec else '.a'
+        lib_suffix = dso_suffix if '+shared' in spec else 'a'
 
         spec.fc_link = '-L%s -lscalapack' % spec.prefix.lib
         spec.cc_link = spec.fc_link
-        spec.libraries = [join_path(spec.prefix.lib, 'libscalapack%s' % lib_suffix)]
+        spec.libraries = [join_path(spec.prefix.lib,
+                                    'libscalapack.%s' % lib_suffix)]
diff --git a/var/spack/repos/builtin/packages/py-numpy/package.py b/var/spack/repos/builtin/packages/py-numpy/package.py
index 6bc11a5e48..2febdac658 100644
--- a/var/spack/repos/builtin/packages/py-numpy/package.py
+++ b/var/spack/repos/builtin/packages/py-numpy/package.py
@@ -44,6 +44,7 @@ class PyNumpy(Package):
 
     extends('python')
     depends_on('py-nose', type='build')
+    depends_on('py-setuptools', type='build')
     depends_on('blas',   when='+blas')
     depends_on('lapack', when='+lapack')