Add a PCBuild8 build directory for building with Visual Studio .NET 2005. Contains a special project to perform profile guided optimizations on the pythoncore.dll, by instrumenting and running pybench.py

PCbuild8/rmpyc.py

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+# Remove all the .pyc and .pyo files under ../Lib.
+
+
+def deltree(root):
+    import os
+    from os.path import join
+
+    npyc = npyo = 0
+    for root, dirs, files in os.walk(root):
+        for name in files:
+            delete = False
+            if name.endswith('.pyc'):
+                delete = True
+                npyc += 1
+            elif name.endswith('.pyo'):
+                delete = True
+                npyo += 1
+
+            if delete:
+                os.remove(join(root, name))
+
+    return npyc, npyo
+
+npyc, npyo = deltree("../Lib")
+print npyc, ".pyc deleted,", npyo, ".pyo deleted"