Merge branch 'release/3.0.1-1'3.0.1-1

1 files changed, 19 insertions, 5 deletions

diff --git a/engine/SCons/Tool/__init__.py b/engine/SCons/Tool/__init__.py
index 9265b81..2be4c57 100644
--- a/engine/SCons/Tool/__init__.py
+++ b/engine/SCons/Tool/__init__.py
@@ -35,7 +35,7 @@ tool definition.
 # 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/Tool/__init__.py rel_3.0.0:4395:8972f6a2f699 2017/09/18 12:59:24 bdbaddog"
+__revision__ = "src/engine/SCons/Tool/__init__.py 74b2c53bc42290e911b334a6b44f187da698a668 2017/11/14 13:16:53 bdbaddog"
 
 import imp
 import importlib
@@ -222,8 +222,10 @@ class Tool(object):
 
             # Don't reload a tool we already loaded.
             sys_modules_value = sys.modules.get(found_name,False)
+
+            found_module = None
             if sys_modules_value and sys_modules_value.__file__ == spec.origin:
-                return sys.modules[found_name]
+                found_module = sys.modules[found_name]
             else:
                 # Not sure what to do in the case that there already
                 # exists sys.modules[self.name] but the source file is
@@ -235,7 +237,11 @@ class Tool(object):
                     # If we found it in SCons.Tool, then add it to the module
                     setattr(SCons.Tool, self.name, module)
 
-                return module
+                found_module = module
+            
+            if found_module is not None:
+                sys.path = oldpythonpath
+                return found_module
 
 
         sys.path = oldpythonpath
@@ -907,8 +913,16 @@ def createCFileBuilders(env):
 #  Create common Java builders
 
 def CreateJarBuilder(env):
+    """The Jar builder expects a list of class files
+    which it can package into a jar file.
+
+    The jar tool provides an interface for passing other types
+    of java files such as .java, directories or swig interfaces
+    and will build them to class files in which it can package
+    into the jar.
+    """
     try:
-        java_jar = env['BUILDERS']['Jar']
+        java_jar = env['BUILDERS']['JarFile']
     except KeyError:
         fs = SCons.Node.FS.get_default_fs()
         jar_com = SCons.Action.Action('$JARCOM', '$JARCOMSTR')
@@ -917,7 +931,7 @@ def CreateJarBuilder(env):
                                          src_suffix = '$JAVACLASSSUFFIX',
                                          src_builder = 'JavaClassFile',
                                          source_factory = fs.Entry)
-        env['BUILDERS']['Jar'] = java_jar
+        env['BUILDERS']['JarFile'] = java_jar
     return java_jar
 
 def CreateJavaHBuilder(env):