Write all config/architecture pairs into VS2010 project configurations element to avoid missing configurations

src/actions/vstudio/_vstudio.lua

@@ -125,9 +125,9 @@
 -- form: <project platform name>|<architecture>.
 --
 
-	function vstudio.configname(cfg)
+	function vstudio.configname(cfg, arch)
 		local platform = vstudio.projectplatform(cfg)
-		local architecture = vstudio.architecture(cfg)
+		local architecture = arch or vstudio.architecture(cfg)
 		return platform .. "|" .. architecture
 	end
 
@@ -565,4 +565,4 @@
 		oncleansolution = premake.vstudio.cleansolution,
 		oncleanproject  = premake.vstudio.cleanproject,
 		oncleantarget   = premake.vstudio.cleantarget
-	}
+	}

src/actions/vstudio/vs2010_vcxproj.lua

@@ -86,12 +86,23 @@
 --
 
 	function vc2010.projectConfigurations(prj)
+		-- build a list of all architectures used in this project
+		local platforms = {}
+		for cfg in project.eachconfig(prj) do
+			local arch = vstudio.architecture(cfg)
+			if not table.contains(platforms, arch) then
+				table.insert(platforms, arch)
+			end
+		end
+	
 		_p(1,'<ItemGroup Label="ProjectConfigurations">')
 		for cfg in project.eachconfig(prj) do
-			_x(2,'<ProjectConfiguration Include="%s">', vstudio.configname(cfg))
-			_x(3,'<Configuration>%s</Configuration>', vstudio.projectplatform(cfg))
-			_p(3,'<Platform>%s</Platform>', vstudio.architecture(cfg))
-			_p(2,'</ProjectConfiguration>')
+			for _, arch in ipairs(platforms) do
+				_x(2,'<ProjectConfiguration Include="%s">', vstudio.configname(cfg, arch))
+				_x(3,'<Configuration>%s</Configuration>', vstudio.projectplatform(cfg))
+				_p(3,'<Platform>%s</Platform>', vstudio.architecture(cfg))
+				_p(2,'</ProjectConfiguration>')
+			end
 		end
 		_p(1,'</ItemGroup>')
 	end

tests/actions/vstudio/vc2010/test_project_configs.lua

@@ -60,6 +60,14 @@
 			<Configuration>Debug x32</Configuration>
 			<Platform>Win32</Platform>
 		</ProjectConfiguration>
+		<ProjectConfiguration Include="Debug x32|x64">
+			<Configuration>Debug x32</Configuration>
+			<Platform>Win32</Platform>
+		</ProjectConfiguration>
+		<ProjectConfiguration Include="Debug x64|Win32">
+			<Configuration>Debug x64</Configuration>
+			<Platform>x64</Platform>
+		</ProjectConfiguration>
 		<ProjectConfiguration Include="Debug x64|x64">
 			<Configuration>Debug x64</Configuration>
 			<Platform>x64</Platform>