Use the right scanner if the same source file is used for targets in two different environments.

2 files changed, 11 insertions, 2 deletions

diff --git a/src/engine/SCons/Node/FS.py b/src/engine/SCons/Node/FS.py
index bc9e682..1af739f 100644
--- a/src/engine/SCons/Node/FS.py
+++ b/src/engine/SCons/Node/FS.py
@@ -1497,11 +1497,12 @@ class File(Base):
             path = scanner.path(env, target.cwd)
             target.scanner_paths[scanner] = path
 
+        key = str(id(env)) + '|' + str(id(scanner)) + '|' + string.join(map(str,path), ':')
         try:
-            includes = self.found_includes[path]
+            includes = self.found_includes[key]
         except KeyError:
             includes = scanner(self, env, path)
-            self.found_includes[path] = includes
+            self.found_includes[key] = includes
 
         return includes
 
diff --git a/src/engine/SCons/Node/FSTests.py b/src/engine/SCons/Node/FSTests.py
index 747fdf1..5ed377c 100644
--- a/src/engine/SCons/Node/FSTests.py
+++ b/src/engine/SCons/Node/FSTests.py
@@ -909,6 +909,14 @@ class FSTestCase(unittest.TestCase):
         assert deps == [xyz], deps
         assert s.call_count == 2, s.call_count
 
+        env2 = Environment()
+
+        deps = f12.get_found_includes(env2, s, t1)
+        assert deps == [xyz], deps
+        assert s.call_count == 3, s.call_count
+
+
+
         # Make sure we can scan this file even if the target isn't
         # a file that has a scanner (it might be an Alias, e.g.).
         class DummyNode: