Add workaround for VS 2010 nmake clean issue. VS 2010 doesn't set up PATH for nmake.exe correctly.
diff --git a/Misc/NEWS b/Misc/NEWS
index 4278e95..28d80c2 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -68,6 +68,9 @@
 Build
 -----
 
+- Add workaround for VS 2010 nmake clean issue. VS 2010 doesn't set up PATH
+  for nmake.exe correctly.
+
 
 What's New in Python 3.3.3?
 ===========================
diff --git a/PC/python3.mak b/PC/python3.mak
index 2ec9185..9cf1807 100644
--- a/PC/python3.mak
+++ b/PC/python3.mak
@@ -5,6 +5,10 @@
 	lib /def:python33stub.def /out:$(OutDir)python33stub.lib /MACHINE:$(MACHINE)
 
 clean:
-	del $(OutDir)python3.dll $(OutDir)python3.lib $(OutDir)python33stub.lib $(OutDir)python3.exp $(OutDir)python33stub.exp
+	IF EXIST $(OutDir)python3.dll del $(OutDir)python3.dll
+	IF EXIST $(OutDir)python3.lib del $(OutDir)python3.lib
+	IF EXIST $(OutDir)python33stub.lib del $(OutDir)python33stub.lib
+	IF EXIST $(OutDir)python3.exp del $(OutDir)python3.exp
+	IF EXIST $(OutDir)python33stub.exp del $(OutDir)python33stub.exp
 
 rebuild: clean $(OutDir)python3.dll
diff --git a/PCbuild/python3dll.vcxproj b/PCbuild/python3dll.vcxproj
index b3459b5..bc8ff31 100644
--- a/PCbuild/python3dll.vcxproj
+++ b/PCbuild/python3dll.vcxproj
@@ -99,7 +99,7 @@
     <NMakeReBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">cd $(ProjectDir)\..\PC
 nmake /f python3.mak MACHINE=x86 OutDir=$(OutDir) rebuild</NMakeReBuildCommandLine>
     <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">cd $(ProjectDir)\..\PC
-nmake /f python3.mak MACHINE=x86 OutDir=$(OutDir) clean</NMakeCleanCommandLine>
+"$(VSInstallDir)\VC\bin\nmake.exe" /f python3.mak MACHINE=x86 OutDir=$(OutDir) clean</NMakeCleanCommandLine>
     <NMakeOutput Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(OutDir)python3.dll</NMakeOutput>
     <NMakePreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(NMakePreprocessorDefinitions)</NMakePreprocessorDefinitions>
     <NMakeIncludeSearchPath Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(NMakeIncludeSearchPath)</NMakeIncludeSearchPath>
@@ -111,7 +111,7 @@
     <NMakeReBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='Release|x64'">cd $(ProjectDir)\..\PC
 nmake /f python3.mak MACHINE=x64 OutDir=$(OutDir) rebuild</NMakeReBuildCommandLine>
     <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='Release|x64'">cd $(ProjectDir)\..\PC
-nmake /f python3.mak MACHINE=x64 OutDir=$(OutDir) clean</NMakeCleanCommandLine>
+"$(VSInstallDir)\VC\bin\nmake.exe" /f python3.mak MACHINE=x64 OutDir=$(OutDir) clean</NMakeCleanCommandLine>
     <NMakeOutput Condition="'$(Configuration)|$(Platform)'=='Release|x64'">$(OutDir)python3.dll</NMakeOutput>
     <NMakePreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|x64'">$(NMakePreprocessorDefinitions)</NMakePreprocessorDefinitions>
     <NMakeIncludeSearchPath Condition="'$(Configuration)|$(Platform)'=='Release|x64'">$(NMakeIncludeSearchPath)</NMakeIncludeSearchPath>
@@ -123,7 +123,7 @@
     <NMakeReBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'">cd $(ProjectDir)\..\PC
 nmake /f python3.mak MACHINE=x86 OutDir=$(OutDir) rebuild</NMakeReBuildCommandLine>
     <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'">cd $(ProjectDir)\..\PC
-nmake /f python3.mak MACHINE=x86 OutDir=$(OutDir) clean</NMakeCleanCommandLine>
+"$(VSInstallDir)\VC\bin\nmake.exe" /f python3.mak MACHINE=x86 OutDir=$(OutDir) clean</NMakeCleanCommandLine>
     <NMakeOutput Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'">$(OutDir)python3.dll</NMakeOutput>
     <NMakePreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'">$(NMakePreprocessorDefinitions)</NMakePreprocessorDefinitions>
     <NMakeIncludeSearchPath Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'">$(NMakeIncludeSearchPath)</NMakeIncludeSearchPath>
@@ -135,7 +135,7 @@
     <NMakeReBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'">cd $(ProjectDir)\..\PC
 nmake /f python3.mak MACHINE=x64 OutDir=$(OutDir) rebuild</NMakeReBuildCommandLine>
     <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'">cd $(ProjectDir)\..\PC
-nmake /f python3.mak MACHINE=x64 OutDir=$(OutDir) clean</NMakeCleanCommandLine>
+"$(VSInstallDir)\VC\bin\nmake.exe" /f python3.mak MACHINE=x64 OutDir=$(OutDir) clean</NMakeCleanCommandLine>
     <NMakeOutput Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'">$(OutDir)python3.dll</NMakeOutput>
     <NMakePreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'">$(NMakePreprocessorDefinitions)</NMakePreprocessorDefinitions>
     <NMakeIncludeSearchPath Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'">$(NMakeIncludeSearchPath)</NMakeIncludeSearchPath>
@@ -147,7 +147,7 @@
     <NMakeReBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'">cd $(ProjectDir)\..\PC
 nmake /f python3.mak MACHINE=x86 OutDir=$(OutDir) rebuild</NMakeReBuildCommandLine>
     <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'">cd $(ProjectDir)\..\PC
-nmake /f python3.mak MACHINE=x86 OutDir=$(OutDir) clean</NMakeCleanCommandLine>
+"$(VSInstallDir)\VC\bin\nmake.exe" /f python3.mak MACHINE=x86 OutDir=$(OutDir) clean</NMakeCleanCommandLine>
     <NMakeOutput Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'">$(OutDir)python3.dll</NMakeOutput>
     <NMakePreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'">$(NMakePreprocessorDefinitions)</NMakePreprocessorDefinitions>
     <NMakeIncludeSearchPath Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'">$(NMakeIncludeSearchPath)</NMakeIncludeSearchPath>
@@ -159,7 +159,7 @@
     <NMakeReBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'">cd $(ProjectDir)\..\PC
 nmake /f python3.mak MACHINE=x64 OutDir=$(OutDir) rebuild</NMakeReBuildCommandLine>
     <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'">cd $(ProjectDir)\..\PC
-nmake /f python3.mak MACHINE=x64 OutDir=$(OutDir) clean</NMakeCleanCommandLine>
+"$(VSInstallDir)\VC\bin\nmake.exe" /f python3.mak MACHINE=x64 OutDir=$(OutDir) clean</NMakeCleanCommandLine>
     <NMakeOutput Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'">$(OutDir)python3.dll</NMakeOutput>
     <NMakePreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'">$(NMakePreprocessorDefinitions)</NMakePreprocessorDefinitions>
     <NMakeIncludeSearchPath Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'">$(NMakeIncludeSearchPath)</NMakeIncludeSearchPath>