added support for custom build message in vs201x generator

src/actions/vstudio/vs2010_vcxproj.lua

@@ -494,6 +494,10 @@
 
 						local outputs = project.getrelative(prj, filecfg.buildoutputs)
 						vc2010.element(3, "Outputs", condition, '%s', table.concat(outputs, " "))
+
+						if filecfg.buildmessage then
+							_p(3,'<Message %s>%s</Message>', condition, premake.esc(filecfg.buildmessage))
+						end
 					end
 				end
 

tests/actions/vstudio/vc2010/test_files.lua

@@ -88,6 +88,29 @@
 	end
 
 
+	function suite.customBuild_onBuildRuleWithMessage()
+		files { "hello.cg" }
+		configuration "**.cg"
+			buildmessage "Compiling shader $(InputFile)"
+			buildcommands { "cgc $(InputFile)" }
+			buildoutputs { "$(InputName).obj" }
+		prepare()
+		test.capture [[
+	<ItemGroup>
+		<CustomBuild Include="hello.cg">
+			<FileType>Document</FileType>
+			<Command Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">cgc $(InputFile)</Command>
+			<Outputs Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(InputName).obj</Outputs>
+			<Message Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">Compiling shader $(InputFile)</Message>
+			<Command Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">cgc $(InputFile)</Command>
+			<Outputs Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(InputName).obj</Outputs>
+			<Message Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">Compiling shader $(InputFile)</Message>
+		</CustomBuild>
+	</ItemGroup>
+		]]
+	end
+
+
 --
 -- If a PCH source is specified, ensure it is included in the file configuration.
 --