diff --git a/build/win32/vs10/install.vcxproj b/build/win32/vs10/install.vcxproj
index 8afbb83e10..e46e41a93a 100644
--- a/build/win32/vs10/install.vcxproj
+++ b/build/win32/vs10/install.vcxproj
@@ -91,41 +91,49 @@
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
     <Import Project="gtk-install-headers-data.props" />
     <Import Project="gtk-install-bin.props" />
+    <Import Project="gtk-build-defines.props" />
   </ImportGroup>
   <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
     <Import Project="gtk-install-headers-data.props" />
     <Import Project="gtk-install-bin.props" />
+    <Import Project="gtk-build-defines.props" />
   </ImportGroup>
   <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
     <Import Project="gtk-install-headers-data.props" />
     <Import Project="gtk-install-bin.props" />
+    <Import Project="gtk-build-defines.props" />
   </ImportGroup>
   <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
     <Import Project="gtk-install-headers-data.props" />
     <Import Project="gtk-install-bin.props" />
+    <Import Project="gtk-build-defines.props" />
   </ImportGroup>
   <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release_Broadway|Win32'" Label="PropertySheets">
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
     <Import Project="gtk-install-headers-data.props" />
     <Import Project="gtk-install-bin.props" />
+    <Import Project="gtk-build-defines.props" />
   </ImportGroup>
   <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug_Broadway|Win32'" Label="PropertySheets">
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
     <Import Project="gtk-install-headers-data.props" />
     <Import Project="gtk-install-bin.props" />
+    <Import Project="gtk-build-defines.props" />
   </ImportGroup>
   <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release_Broadway|x64'" Label="PropertySheets">
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
     <Import Project="gtk-install-headers-data.props" />
     <Import Project="gtk-install-bin.props" />
+    <Import Project="gtk-build-defines.props" />
   </ImportGroup>
   <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug_Broadway|x64'" Label="PropertySheets">
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
     <Import Project="gtk-install-headers-data.props" />
     <Import Project="gtk-install-bin.props" />
+    <Import Project="gtk-build-defines.props" />
   </ImportGroup>
   <PropertyGroup Label="UserMacros" />
   <PropertyGroup>
diff --git a/build/win32/vs9/install.vcproj b/build/win32/vs9/install.vcproj
index e7960c945f..9a4e1a5e7e 100644
--- a/build/win32/vs9/install.vcproj
+++ b/build/win32/vs9/install.vcproj
@@ -23,7 +23,7 @@
 			Name="Debug|Win32"
 			OutputDirectory="$(GlibEtcInstallRoot)"
 			ConfigurationType="10"
-			InheritedPropertySheets=".\gtk-install-headers-data.vsprops;.\gtk-install-bin.vsprops"
+			InheritedPropertySheets=".\gtk-install-headers-data.vsprops;.\gtk-install-bin.vsprops;.\gtk-build-defines.vsprops"
 			CharacterSet="2"
 			DeleteExtensionsOnClean=""
 			>
@@ -31,21 +31,12 @@
 				Name="VCPreBuildEventTool"
 				CommandLine="$(GtkDoInstallBin)$(GtkDoInstall)"
 			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
 		</Configuration>
 		<Configuration
 			Name="Debug|x64"
 			OutputDirectory="$(GlibEtcInstallRoot)"
 			ConfigurationType="10"
-			InheritedPropertySheets=".\gtk-install-headers-data.vsprops;.\gtk-install-bin.vsprops"
+			InheritedPropertySheets=".\gtk-install-headers-data.vsprops;.\gtk-install-bin.vsprops;.\gtk-build-defines.vsprops"
 			CharacterSet="2"
 			DeleteExtensionsOnClean=""
 			>
@@ -53,22 +44,13 @@
 				Name="VCPreBuildEventTool"
 				CommandLine="$(GtkDoInstallBin)$(GtkDoInstall)"
 			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
 		</Configuration>
 		<Configuration
 			Name="Debug_Broadway|Win32"
 			OutputDirectory="$(GlibEtcInstallRoot)"
 			IntermediateDirectory="$(ConfigurationName)"
 			ConfigurationType="10"
-			InheritedPropertySheets=".\gtk-install-headers-data.vsprops;.\gtk-install-bin.vsprops"
+			InheritedPropertySheets=".\gtk-install-headers-data.vsprops;.\gtk-install-bin.vsprops;.\gtk-build-defines.vsprops"
 			CharacterSet="2"
 			DeleteExtensionsOnClean=""
 			>
@@ -76,21 +58,12 @@
 				Name="VCPreBuildEventTool"
 				CommandLine="$(GtkDoInstallBin)$(GtkDoInstall)$(GtkDoInstallBroadwayHeaders)"
 			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
 		</Configuration>
 		<Configuration
 			Name="Debug_Broadway|x64"
 			OutputDirectory="$(GlibEtcInstallRoot)"
 			ConfigurationType="10"
-			InheritedPropertySheets=".\gtk-install-headers-data.vsprops;.\gtk-install-bin.vsprops"
+			InheritedPropertySheets=".\gtk-install-headers-data.vsprops;.\gtk-install-bin.vsprops;.\gtk-build-defines.vsprops"
 			CharacterSet="2"
 			DeleteExtensionsOnClean=""
 			>
@@ -98,22 +71,13 @@
 				Name="VCPreBuildEventTool"
 				CommandLine="$(GtkDoInstallBin)$(GtkDoInstall)$(GtkDoInstallBroadwayHeaders)"
 			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
 		</Configuration>
 		<Configuration
 			Name="Release|Win32"
 			OutputDirectory="$(GlibEtcInstallRoot)"
 			IntermediateDirectory="$(ConfigurationName)"
 			ConfigurationType="10"
-			InheritedPropertySheets=".\gtk-install-headers-data.vsprops;.\gtk-install-bin.vsprops"
+			InheritedPropertySheets=".\gtk-install-headers-data.vsprops;.\gtk-install-bin.vsprops;.\gtk-build-defines.vsprops"
 			CharacterSet="2"
 			DeleteExtensionsOnClean=""
 			WholeProgramOptimization="1"
@@ -122,21 +86,12 @@
 				Name="VCPreBuildEventTool"
 				CommandLine="$(GtkDoInstallBin)$(GtkDoInstall)"
 			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
 		</Configuration>
 		<Configuration
 			Name="Release|x64"
 			OutputDirectory="$(GlibEtcInstallRoot)"
 			ConfigurationType="10"
-			InheritedPropertySheets=".\gtk-install-headers-data.vsprops;.\gtk-install-bin.vsprops"
+			InheritedPropertySheets=".\gtk-install-headers-data.vsprops;.\gtk-install-bin.vsprops;.\gtk-build-defines.vsprops"
 			CharacterSet="2"
 			DeleteExtensionsOnClean=""
 			WholeProgramOptimization="1"
@@ -145,22 +100,13 @@
 				Name="VCPreBuildEventTool"
 				CommandLine="$(GtkDoInstallBin)$(GtkDoInstall)"
 			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
 		</Configuration>
 		<Configuration
 			Name="Release_Broadway|Win32"
 			OutputDirectory="$(GlibEtcInstallRoot)"
 			IntermediateDirectory="$(ConfigurationName)"
 			ConfigurationType="10"
-			InheritedPropertySheets=".\gtk-install-headers-data.vsprops;.\gtk-install-bin.vsprops"
+			InheritedPropertySheets=".\gtk-install-headers-data.vsprops;.\gtk-install-bin.vsprops;.\gtk-build-defines.vsprops"
 			CharacterSet="2"
 			DeleteExtensionsOnClean=""
 			WholeProgramOptimization="1"
@@ -169,21 +115,12 @@
 				Name="VCPreBuildEventTool"
 				CommandLine="$(GtkDoInstallBin)$(GtkDoInstall)$(GtkDoInstallBroadwayHeaders)"
 			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
 		</Configuration>
 		<Configuration
 			Name="Release_Broadway|x64"
 			OutputDirectory="$(GlibEtcInstallRoot)"
 			ConfigurationType="10"
-			InheritedPropertySheets=".\gtk-install-headers-data.vsprops;.\gtk-install-bin.vsprops"
+			InheritedPropertySheets=".\gtk-install-headers-data.vsprops;.\gtk-install-bin.vsprops;.\gtk-build-defines.vsprops"
 			CharacterSet="2"
 			DeleteExtensionsOnClean=""
 			WholeProgramOptimization="1"
@@ -192,15 +129,6 @@
 				Name="VCPreBuildEventTool"
 				CommandLine="$(GtkDoInstallBin)$(GtkDoInstall)$(GtkDoInstallBroadwayHeaders)"
 			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-			/>
 		</Configuration>
 	</Configurations>
 	<References>