Windows: Set XP compatible flags for 32 bit build

VisualStudio/civetweb.sln

@@ -1,7 +1,7 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 14
-VisualStudioVersion = 14.0.23107.0
+VisualStudioVersion = 14.0.25420.1
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "civetweb_lua", "civetweb_lua\civetweb_lua.vcxproj", "{9BE9C008-E851-42B1-A034-BD4630AE4CD6}"
 	ProjectSection(ProjectDependencies) = postProject

VisualStudio/civetweb_lua/civetweb_lua.vcxproj

@@ -22,13 +22,14 @@
     <ProjectGuid>{9BE9C008-E851-42B1-A034-BD4630AE4CD6}</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>civetweb_lua</RootNamespace>
+    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v140_xp</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
@@ -47,7 +48,7 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v140_xp</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>

VisualStudio/duktape_lib/duktape_lib.vcxproj

@@ -29,7 +29,7 @@
     <ConfigurationType>StaticLibrary</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v140_xp</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>StaticLibrary</ConfigurationType>
@@ -42,7 +42,7 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v140_xp</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>StaticLibrary</ConfigurationType>

VisualStudio/ex_embed_cpp/ex_embed_cpp.vcxproj

@@ -28,7 +28,7 @@
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v140_xp</PlatformToolset>
     <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
@@ -40,7 +40,7 @@
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v140_xp</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>

VisualStudio/ex_embedded_c/ex_embedded_c.vcxproj

@@ -35,7 +35,7 @@
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v140_xp</PlatformToolset>
     <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
@@ -47,7 +47,7 @@
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v140_xp</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
   </PropertyGroup>

VisualStudio/lua_lib/lua_lib.vcxproj

@@ -29,7 +29,7 @@
     <ConfigurationType>StaticLibrary</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v140_xp</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
     <ConfigurationType>StaticLibrary</ConfigurationType>
@@ -42,7 +42,7 @@
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v140_xp</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
     <ConfigurationType>StaticLibrary</ConfigurationType>

VisualStudio/unit_test/unit_test.vcxproj

@@ -33,20 +33,21 @@
     <ProjectGuid>{1AC4A7A6-0100-4287-97F4-B95807BE5607}</ProjectGuid>
     <Keyword>Win32Proj</Keyword>
     <RootNamespace>unit_test</RootNamespace>
+    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>true</UseDebugLibraries>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v140_xp</PlatformToolset>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
     <UseDebugLibraries>false</UseDebugLibraries>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>MultiByte</CharacterSet>
-    <PlatformToolset>v140</PlatformToolset>
+    <PlatformToolset>v140_xp</PlatformToolset>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">

VisualStudio/unit_test/unit_test.vcxproj.filters

@@ -39,6 +39,9 @@
     <ClInclude Include="..\..\test\civetweb_check.h">
       <Filter>Headerdateien</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\test\timertest.c">
+      <Filter>Quelldateien</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\..\test\public_server.c">
@@ -53,9 +56,6 @@
     <ClCompile Include="..\..\test\private_exe.c">
       <Filter>Quelldateien</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\test\timertest.c">
-      <Filter>Quelldateien</Filter>
-    </ClCompile>    
     <ClCompile Include="..\..\test\shared.c">
       <Filter>Quelldateien</Filter>
     </ClCompile>

src/civetweb.c

@@ -1035,7 +1035,7 @@ static int64_t
 mg_atomic_add(volatile int64_t *addr, int64_t value)
 {
 	int64_t ret;
-#if defined(_WIN32) && !defined(__SYMBIAN32__) && !defined(NO_ATOMICS)
+#if defined(_WIN64) && !defined(__SYMBIAN32__) && !defined(NO_ATOMICS)
 	ret = InterlockedAdd64(addr, value);
 #elif defined(__GNUC__)                                                        \
     && ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ > 0)))           \