added lapack and blas deps, fixed gfortran compiler dependency

var/spack/packages/py-numpy/gnu_fcompiler.patch

@@ -0,0 +1,11 @@
+--- a/numpy/distutils/fcompiler/gnu.py.orig	2015-08-17 11:31:52.000000000 -0700
++++ b/numpy/distutils/fcompiler/gnu.py	2015-08-17 11:32:48.000000000 -0700
+@@ -252,7 +252,7 @@
+     #       GNU Fortran 95 (GCC) 4.2.0 20060218 (experimental)
+     #       GNU Fortran (GCC) 4.3.0 20070316 (experimental)
+ 
+-    possible_executables = ['gfortran', 'f95']
++    possible_executables = ['fc', 'f95']
+     executables = {
+         'version_cmd'  : ["<F90>", "--version"],
+         'compiler_f77' : [None, "-Wall", "-g", "-ffixed-form",

var/spack/packages/py-numpy/package.py

@@ -7,9 +7,17 @@ class PyNumpy(Package):
 
     version('1.9.1', '78842b73560ec378142665e712ae4ad9')
     version('1.9.2', 'a1ed53432dbcd256398898d35bc8e645')
+    
+    patch('gnu_fcompiler.patch', when='%gcc')
 
     extends('python')
     depends_on('py-nose')
+    depends_on('netlib-blas+fpic')
+    depends_on('netlib-lapack+shared')
 
     def install(self, spec, prefix):
+        with open('site.cfg', 'w') as f:
+            f.write('[DEFAULT]\n')
+            f.write('libraries=lapack,blas\n')
+            f.write('library_dirs=%s/lib:%s/lib\n' % (spec['blas'].prefix, spec['lapack'].prefix))
         python('setup.py', 'install', '--prefix=%s' % prefix)

var/spack/packages/py-scipy/package.py

@@ -11,6 +11,8 @@ class PyScipy(Package):
     extends('python')
     depends_on('py-nose')
     depends_on('py-numpy')
+    depends_on('blas')
+    depends_on('lapack')
 
     def install(self, spec, prefix):
         python('setup.py', 'install', '--prefix=%s' % prefix)