Properly deprecate WinMain flag

src/_premake_init.lua

@@ -501,7 +501,7 @@
 			"StaticRuntime",
 			"Symbols",             -- DEPRECATED
 			"UndefinedIdentifiers",
-			"WinMain",
+			"WinMain",             -- DEPRECATED
 			"WPF",
 			"C++11",               -- DEPRECATED
 			"C++14",               -- DEPRECATED
@@ -1367,6 +1367,16 @@
 	api.deprecateValue("flags", "C11",   'Use `language "C11"` instead',   function(value) end, function(value) end)
 
 
+	-- 13 April 2017
+
+	api.deprecateValue("flags", "WinMain", 'Use `entrypoint "WinMainCRTStartup"` instead',
+	function(value)
+		entrypoint "WinMainCRTStartup"
+	end,
+	function(value)
+		entrypoint "mainCRTStartup"
+	end)
+
 -----------------------------------------------------------------------------
 --
 -- Install Premake's default set of command line arguments.
@@ -1526,4 +1536,7 @@
 	filter { "system:macosx" }
 		toolset "clang"
 
+	filter { "system:windows", "kind:WindowedApp or ConsoleApp" }
+		entrypoint "mainCRTStartup"
+
 	filter {}

src/actions/vstudio/vs200x_vcproj.lua

@@ -1121,11 +1121,8 @@
 
 
 	function m.entryPointSymbol(cfg, toolset)
-		if (cfg.kind == "ConsoleApp" or cfg.kind == "WindowedApp") and
-			not cfg.flags.WinMain and
-			not toolset
-		then
-			p.w('EntryPointSymbol="mainCRTStartup"')
+		if cfg.entrypoint then
+			p.w('EntryPointSymbol="%s"', cfg.entrypoint)
 		end
 	end
 

src/actions/vstudio/vs2010_vcxproj.lua

@@ -1310,14 +1310,6 @@
 	function m.entryPointSymbol(cfg)
 		if cfg.entrypoint then
 			m.element("EntryPointSymbol", nil, cfg.entrypoint)
-		else
-			if (cfg.kind == premake.CONSOLEAPP or cfg.kind == premake.WINDOWEDAPP) and
-				not cfg.flags.WinMain and
-				cfg.clr == p.OFF and
-				cfg.system ~= p.XBOX360
-			then
-				m.element("EntryPointSymbol", nil, "mainCRTStartup")
-			end
 		end
 	end