diff --git a/libs/win32/sqlite/sqlite.2008.vcproj b/libs/win32/sqlite/sqlite.2008.vcproj
index 59fa6473fd..7029cd1042 100644
--- a/libs/win32/sqlite/sqlite.2008.vcproj
+++ b/libs/win32/sqlite/sqlite.2008.vcproj
@@ -43,7 +43,7 @@
 				Name="VCCLCompilerTool"
 				Optimization="0"
 				AdditionalIncludeDirectories=""$(ProjectDir)";"$(ProjectDir)..\..\sqlite\src""
-				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;WIN32;_DEBUG;_LIB;SQLITE_DEBUG"
+				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;WIN32;_DEBUG;_LIB;SQLITE_DEBUG;THREADSAFE=1"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="3"
@@ -106,7 +106,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				AdditionalIncludeDirectories="&quot;$(ProjectDir)&quot;;&quot;$(ProjectDir)..\..\sqlite\src&quot;"
-				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;WIN32;NDEBUG;_LIB"
+				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;WIN32;NDEBUG;_LIB;THREADSAFE=1"
 				RuntimeLibrary="2"
 				UsePrecompiledHeader="0"
 				WarningLevel="0"
@@ -169,7 +169,7 @@
 				Name="VCCLCompilerTool"
 				Optimization="0"
 				AdditionalIncludeDirectories="&quot;$(ProjectDir)&quot;;&quot;$(ProjectDir)..\..\sqlite\src&quot;"
-				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;WIN32;_DEBUG;_LIB;SQLITE_DEBUG"
+				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;WIN32;_DEBUG;_LIB;SQLITE_DEBUG;THREADSAFE=1"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="3"
@@ -247,7 +247,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				AdditionalIncludeDirectories="&quot;$(ProjectDir)&quot;;&quot;$(ProjectDir)..\..\sqlite\src&quot;"
-				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;WIN32;NDEBUG;_LIB"
+				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;WIN32;NDEBUG;_LIB;THREADSAFE=1"
 				RuntimeLibrary="2"
 				UsePrecompiledHeader="0"
 				WarningLevel="0"
diff --git a/libs/win32/sqlite/sqlite.vcproj b/libs/win32/sqlite/sqlite.vcproj
index a7673a8219..eefe515ea3 100644
--- a/libs/win32/sqlite/sqlite.vcproj
+++ b/libs/win32/sqlite/sqlite.vcproj
@@ -42,7 +42,7 @@
 				Name="VCCLCompilerTool"
 				Optimization="0"
 				AdditionalIncludeDirectories="&quot;$(ProjectDir)&quot;;&quot;$(ProjectDir)..\..\sqlite\src&quot;"
-				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;WIN32;_DEBUG;_LIB;SQLITE_DEBUG"
+				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;WIN32;_DEBUG;_LIB;SQLITE_DEBUG;THREADSAFE=1"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="3"
@@ -106,7 +106,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				AdditionalIncludeDirectories="&quot;$(ProjectDir)&quot;;&quot;$(ProjectDir)..\..\sqlite\src&quot;"
-				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;WIN32;NDEBUG;_LIB"
+				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;WIN32;NDEBUG;_LIB;THREADSAFE=1"
 				RuntimeLibrary="2"
 				UsePrecompiledHeader="0"
 				WarningLevel="0"
@@ -170,7 +170,7 @@
 				Name="VCCLCompilerTool"
 				Optimization="0"
 				AdditionalIncludeDirectories="&quot;$(ProjectDir)&quot;;&quot;$(ProjectDir)..\..\sqlite\src&quot;"
-				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;WIN32;_DEBUG;_LIB;SQLITE_DEBUG"
+				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;WIN32;_DEBUG;_LIB;SQLITE_DEBUG;THREADSAFE=1"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="3"
@@ -250,7 +250,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				AdditionalIncludeDirectories="&quot;$(ProjectDir)&quot;;&quot;$(ProjectDir)..\..\sqlite\src&quot;"
-				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;WIN32;NDEBUG;_LIB"
+				PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;WIN32;NDEBUG;_LIB;THREADSAFE=1"
 				RuntimeLibrary="2"
 				UsePrecompiledHeader="0"
 				WarningLevel="0"