attempt to build the python bindings (TODO: symbol errors wrt to swap)

build.bat

@@ -270,7 +270,7 @@ dumpbin /directives ..\mapnik-sdk\libs\*lib | grep LIBCMT
 
 ::msbuild /m:2 /t:mapnik /p:BuildInParellel=true .\build\mapnik.sln /p:Configuration=Release
 
-msbuild /m:2 /p:BuildInParellel=true .\build\mapnik.sln /p:Configuration=Release
+msbuild /m:%NUMBER_OF_PROCESSORS% /p:BuildInParellel=true .\build\mapnik.sln /p:Configuration=Release
 :: /t:rebuild
 :: /v:diag > build.log
 IF %ERRORLEVEL% NEQ 0 GOTO ERROR
@@ -281,6 +281,10 @@ IF %ERRORLEVEL% NEQ 0 GOTO ERROR
 xcopy /i /d /s /q .\build\Release\mapnik.dll ..\mapnik-sdk\libs\ /Y
 IF %ERRORLEVEL% NEQ 0 GOTO ERROR
 
+:: move python binding into local testable location
+xcopy /i /d /s /q .\build\Release\_mapnik.so bindings\python\mapnik\ /Y
+
+
 :: plugins
 xcopy /i /d /s /q .\build\Release\*input ..\mapnik-sdk\libs\mapnik\input\ /Y
 IF %ERRORLEVEL% NEQ 0 GOTO ERROR

mapnik.gyp

@@ -31,7 +31,12 @@
     ],
     "conditions": [
       ["OS=='win'", {
-          'common_defines': ['LIBXML_STATIC','BOOST_LIB_TOOLSET="vc140"','BOOST_COMPILER="14.0"'], # static libxml: libxml2_a.lib
+          'common_defines': [
+             'LIBXML_STATIC', # static libxml: libxml2_a.lib
+             'BOOST_VARIANT_DO_NOT_USE_VARIADIC_TEMPLATES',
+             'BOOST_LIB_TOOLSET="vc140"',
+             'BOOST_COMPILER="14.0"'
+          ],
           'common_libraries': []
       }, {
           'common_defines': ['SHAPE_MEMORY_MAPPED_FILE','U_CHARSET_IS_UTF8=1'],
@@ -144,6 +149,39 @@
         }
       }
     },
+    {
+        "target_name": "_mapnik",
+        "type": "loadable_module",
+        "product_extension": "so",
+        "sources": [ '<!@(find bindings/python/ -name "*.cpp")' ],
+        "dependencies": [ "mapnik" ],
+        'include_dirs': [
+          'c:/tools/python2-x86-32/include'
+        ],
+        'msvs_settings': {
+          'VCLinkerTool': {
+            'AdditionalLibraryDirectories': [
+                'c:/tools/python2-x86-32/libs'
+            ]
+          }
+        },
+        "conditions": [
+          ["OS=='win'", {
+             'libraries':[
+                'libboost_thread-vc140-mt-1_56.lib',
+                'libboost_system-vc140-mt-1_56.lib',
+                'libboost_regex-vc140-mt-1_56.lib',
+                'icuuc.lib',
+                'icuin.lib',
+            ],
+          },{
+              'libraries':[
+                '-lboost_thread'
+              ]
+            }
+          ]
+        ]
+    },
     {
         "target_name": "shape",
         "type": "loadable_module",

src/expression_grammar.cpp

@@ -22,7 +22,6 @@
 
 // NOTE: we define this here in a cpp because def is needed twice:
 // once by src/expression.cpp and once by mapnik/transform_expression_grammar_impl.hpp
-#define BOOST_VARIANT_DO_NOT_USE_VARIADIC_TEMPLATES
 #include <mapnik/expression_grammar_impl.hpp>
 #include <mapnik/transform_expression_grammar_impl.hpp>
 #include <string>