Merge branch 'benjaminwalters-develop' into features/blas

Conflicts:
	var/spack/packages/lapack/package.py

var/spack/packages/lapack/package.py

@@ -1,4 +1,6 @@
 from spack import *
+import sys
+import glob
 
 class Lapack(Package):
     """
@@ -18,12 +20,29 @@ class Lapack(Package):
     version('3.4.0', '02d5706ec03ba885fc246e5fa10d8c70')
     version('3.3.1', 'd0d533ec9a5b74933c2a1e84eedc58b4')
 
-    depends_on('atlas')
+    # blas is a virtual dependency.
+    depends_on('blas')
+
+    # Doesn't always build correctly in parallel
+    parallel = False
+
+    @when('^netlib_blas')
+    def get_blas_libs(self):
+        blas = self.spec['netlib_blas']
+        return [join_path(blas.prefix.lib, 'blas.a')]
+
+
+    @when('^atlas')
+    def get_blas_libs(self):
+        blas = self.spec['atlas']
+        return [join_path(blas.prefix.lib, l)
+                for l in ('libf77blas.a', 'libatlas.a')]
+
 
     def install(self, spec, prefix):
-        atlas_libs = ['libf77blas.a', 'libatlas.a']
-        atlas_libs = [join_path(spec['atlas'].prefix.lib, lib,) for lib in atlas_libs]
-
-        cmake(".", '-DBLAS_LIBRARIES=' + ";".join(atlas_libs), *std_cmake_args)
+        blas_libs = ";".join(self.get_blas_libs())
+        cmake(".", '-DBLAS_LIBRARIES=' + blas_libs, *std_cmake_args)
         make()
         make("install")
+
+

var/spack/packages/netlib_blas/package.py

@@ -0,0 +1,28 @@
+from spack import *
+
+class NetlibBlas(Package):
+    """Netlib reference BLAS"""
+    homepage = "http://www.netlib.org/lapack/"
+    url      = "http://www.netlib.org/lapack/lapack-3.5.0.tgz"
+
+    version('3.5.0', 'b1d3e3e425b2e44a06760ff173104bdf')
+
+    # virtual dependency
+    provides('blas')
+
+    # Doesn't always build correctly in parallel
+    parallel = False
+
+    def install(self, spec, prefix):
+        symlink('make.inc.example', 'make.inc')
+        make('blaslib')
+        
+        # Tests that blas builds correctly
+        make('blas_testing')
+
+        # No install provided
+        mkdirp(prefix.lib)
+        install('librefblas.a', prefix.lib)
+
+        # Blas virtual package should provide blas.a
+        symlink(prefix.lib + '/librefblas.a', prefix.lib + '/blas.a')