fix uv exports on windows

libs/uv/uv.vcxproj

@@ -139,7 +139,7 @@
       </PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;UV_EXPORTS;%(PreprocessorDefinitions);_CRT_SECURE_NO_WARNINGS</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;UV_EXPORTS;%(PreprocessorDefinitions);_CRT_SECURE_NO_WARNINGS;BUILDING_UV_SHARED</PreprocessorDefinitions>
       <AdditionalOptions>/wd4267 /wd4244 /wd4996 %(AdditionalOptions)</AdditionalOptions>
     </ClCompile>
     <Link>
@@ -155,7 +155,7 @@
       </PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>_DEBUG;_WINDOWS;_USRDLL;UV_EXPORTS;%(PreprocessorDefinitions);_CRT_SECURE_NO_WARNINGS</PreprocessorDefinitions>
+      <PreprocessorDefinitions>_DEBUG;_WINDOWS;_USRDLL;UV_EXPORTS;%(PreprocessorDefinitions);_CRT_SECURE_NO_WARNINGS;BUILDING_UV_SHARED</PreprocessorDefinitions>
       <AdditionalOptions>/wd4267 /wd4244 /wd4996 %(AdditionalOptions)</AdditionalOptions>
     </ClCompile>
     <Link>
@@ -173,7 +173,7 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;UV_EXPORTS;%(PreprocessorDefinitions);_CRT_SECURE_NO_WARNINGS</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;UV_EXPORTS;%(PreprocessorDefinitions);_CRT_SECURE_NO_WARNINGS;BUILDING_UV_SHARED</PreprocessorDefinitions>
       <AdditionalOptions>/wd4267 /wd4244 /wd4996 %(AdditionalOptions)</AdditionalOptions>
     </ClCompile>
     <Link>
@@ -194,7 +194,7 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;UV_EXPORTS;%(PreprocessorDefinitions);_CRT_SECURE_NO_WARNINGS</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;UV_EXPORTS;%(PreprocessorDefinitions);_CRT_SECURE_NO_WARNINGS;BUILDING_UV_SHARED</PreprocessorDefinitions>
       <AdditionalOptions>/wd4267 /wd4244 /wd4996 %(AdditionalOptions)</AdditionalOptions>
     </ClCompile>
     <Link>
@@ -215,7 +215,7 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>NDEBUG;_WINDOWS;_USRDLL;UV_EXPORTS;%(PreprocessorDefinitions);_CRT_SECURE_NO_WARNINGS</PreprocessorDefinitions>
+      <PreprocessorDefinitions>NDEBUG;_WINDOWS;_USRDLL;UV_EXPORTS;%(PreprocessorDefinitions);_CRT_SECURE_NO_WARNINGS;BUILDING_UV_SHARED</PreprocessorDefinitions>
       <AdditionalOptions>/wd4267 /wd4244 /wd4996 %(AdditionalOptions)</AdditionalOptions>
     </ClCompile>
     <Link>
@@ -234,7 +234,7 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>NDEBUG;_WINDOWS;_USRDLL;UV_EXPORTS;%(PreprocessorDefinitions);_CRT_SECURE_NO_WARNINGS</PreprocessorDefinitions>
+      <PreprocessorDefinitions>NDEBUG;_WINDOWS;_USRDLL;UV_EXPORTS;%(PreprocessorDefinitions);_CRT_SECURE_NO_WARNINGS;BUILDING_UV_SHARED</PreprocessorDefinitions>
       <AdditionalOptions>/wd4267 /wd4244 /wd4996 %(AdditionalOptions)</AdditionalOptions>
     </ClCompile>
     <Link>