From 765fbac29295fb4e462c480d09dbdb2f9718a845 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= <debian@jff-webhosting.net>
Date: Mon, 25 Aug 2014 15:11:37 +0200
Subject: Imported Upstream version 2.3.3

---
 engine/SCons/Environment.py | 42 +++++++++++++++++++++++++++++++++---------
 1 file changed, 33 insertions(+), 9 deletions(-)

(limited to 'engine/SCons/Environment.py')

diff --git a/engine/SCons/Environment.py b/engine/SCons/Environment.py
index 467007c..ffc9740 100644
--- a/engine/SCons/Environment.py
+++ b/engine/SCons/Environment.py
@@ -31,7 +31,7 @@ Environment
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Environment.py  2014/07/05 09:42:21 garyo"
+__revision__ = "src/engine/SCons/Environment.py  2014/08/24 12:12:31 garyo"
 
 
 import copy
@@ -1206,7 +1206,13 @@ class Base(SubstitutionEnvironment):
                     # based on what we think the value looks like.
                     if SCons.Util.is_List(val):
                         if key == 'CPPDEFINES':
-                            orig = orig.items()
+                            tmp = []
+                            for (k, v) in orig.iteritems():
+                                if v is not None:
+                                    tmp.append((k, v))
+                                else:
+                                    tmp.append((k,))
+                            orig = tmp
                             orig += val
                             self._dict[key] = orig
                         else:
@@ -1286,8 +1292,15 @@ class Base(SubstitutionEnvironment):
                         else:
                             tmp.append((i,))
                     val = tmp
+                    # Construct a list of (key, value) tuples.
                     if SCons.Util.is_Dict(dk):
-                        dk = dk.items()
+                        tmp = []
+                        for (k, v) in dk.iteritems():
+                            if v is not None:
+                                tmp.append((k, v))
+                            else:
+                                tmp.append((k,))
+                        dk = tmp
                     elif SCons.Util.is_String(dk):
                         dk = [(dk,)]
                     else:
@@ -1327,8 +1340,15 @@ class Base(SubstitutionEnvironment):
                             else:
                                 tmp.append((i,))
                         dk = tmp
+                        # Construct a list of (key, value) tuples.
                         if SCons.Util.is_Dict(val):
-                            val = val.items()
+                            tmp = []
+                            for (k, v) in val.iteritems():
+                                if v is not None:
+                                    tmp.append((k, v))
+                                else:
+                                    tmp.append((k,))
+                            val = tmp
                         elif SCons.Util.is_String(val):
                             val = [(val,)]
                         if delete_existing:
@@ -1351,7 +1371,13 @@ class Base(SubstitutionEnvironment):
                         if SCons.Util.is_String(dk):
                             dk = [dk]
                         elif SCons.Util.is_Dict(dk):
-                            dk = dk.items()
+                            tmp = []
+                            for (k, v) in dk.iteritems():
+                                if v is not None:
+                                    tmp.append((k, v))
+                                else:
+                                    tmp.append((k,))
+                            dk = tmp
                         if SCons.Util.is_String(val):
                             if val in dk:
                                 val = []
@@ -1378,10 +1404,8 @@ class Base(SubstitutionEnvironment):
         (like a function).  There are no references to any mutable
         objects in the original Environment.
         """
-        try:
-            builders = self._dict['BUILDERS']
-        except KeyError:
-            pass
+
+        builders = self._dict.get('BUILDERS', {})
 
         clone = copy.copy(self)
         # BUILDERS is not safe to do a simple copy
-- 
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