fix inline textcase to not use default $HOME/.cython/inline

Cython/Build/Tests/TestInline.py

+import os, tempfile
 from Cython.Shadow import inline
 from Cython.Build.Inline import safe_type
 from Cython.TestUtils import CythonTest
@@ -13,23 +14,31 @@ test_kwds = dict(force=True, quiet=True)
 global_value = 100
 
 class TestInline(CythonTest):
+    def setUp(self):
+        CythonTest.setUp(self)
+        self.test_kwds = dict(test_kwds)
+        if os.path.isdir('BUILD'):
+            lib_dir = os.path.join('BUILD','inline')
+        else:
+            lib_dir = tempfile.mkdtemp(prefix='cython_inline_')
+        self.test_kwds['lib_dir'] = lib_dir
 
     def test_simple(self):
-        self.assertEquals(inline("return 1+2", **test_kwds), 3)
+        self.assertEquals(inline("return 1+2", **self.test_kwds), 3)
 
     def test_types(self):
         self.assertEquals(inline("""
             cimport cython
             return cython.typeof(a), cython.typeof(b)
-        """, a=1.0, b=[], **test_kwds), ('double', 'list object'))
+        """, a=1.0, b=[], **self.test_kwds), ('double', 'list object'))
 
     def test_locals(self):
         a = 1
         b = 2
-        self.assertEquals(inline("return a+b", **test_kwds), 3)
+        self.assertEquals(inline("return a+b", **self.test_kwds), 3)
 
     def test_globals(self):
-        self.assertEquals(inline("return global_value + 1", **test_kwds), global_value + 1)
+        self.assertEquals(inline("return global_value + 1", **self.test_kwds), global_value + 1)
 
     if has_numpy:
 
@@ -38,4 +47,4 @@ class TestInline(CythonTest):
             a = numpy.ndarray((10, 20))
             a[0,0] = 10
             self.assertEquals(safe_type(a), 'numpy.ndarray[numpy.float64_t, ndim=2]')
-            self.assertEquals(inline("return a[0,0]", a=a, **test_kwds), 10.0)
+            self.assertEquals(inline("return a[0,0]", a=a, **self.test_kwds), 10.0)