Fix the --debug=pdb option on Windows.

2 files changed, 9 insertions, 9 deletions

diff --git a/src/CHANGES.txt b/src/CHANGES.txt
index c30e871..4643b9a 100644
--- a/src/CHANGES.txt
+++ b/src/CHANGES.txt
@@ -71,6 +71,8 @@ RELEASE 0.05 -
   - Fix the -c option so it doesn't stop removing targets if one doesn't
     already exist.
 
+  - Fix the --debug=pdb option when run on Windows NT.
+
   From Steve Leblanc:
 
   - Add support for the -u option.
diff --git a/src/engine/SCons/Script/__init__.py b/src/engine/SCons/Script/__init__.py
index aa4ecb4..529729e 100644
--- a/src/engine/SCons/Script/__init__.py
+++ b/src/engine/SCons/Script/__init__.py
@@ -376,18 +376,16 @@ def options_init():
     def opt_debug(opt, arg):
         global print_tree
         if arg == "pdb":
-            if sys.platform == 'win32':
-                lib_dir = os.path.join(sys.exec_prefix, "lib")
-            else:
-                lib_dir = os.path.join(sys.exec_prefix,
-                                       "lib",
-                                       "python" + sys.version[0:3])
-            args = [ sys.executable, os.path.join(lib_dir, "pdb.py") ] + \
+            args = [ sys.executable, "pdb.py" ] + \
                      filter(lambda x: x != "--debug=pdb", sys.argv)
             if sys.platform == 'win32':
-                ret = os.spawnve(os.P_WAIT, cmd_interp, args, env)
-                sys.exit(ret)
+                args[1] = os.path.join(sys.exec_prefix, "lib", "pdb.py")
+                sys.exit(os.spawnve(os.P_WAIT, args[0], args, os.environ))
             else:
+                args[1] = os.path.join(sys.exec_prefix,
+                                       "lib",
+                                       "python" + sys.version[0:3],
+				       "pdb.py")
                 os.execvpe(args[0], args, os.environ)
         elif arg == "tree":
             print_tree = 1