Assure a default toolset is always set.

modules/codelite/_preload.lua

@@ -18,6 +18,7 @@
 		trigger         = "codelite",
 		shortname       = "CodeLite",
 		description     = "Generate CodeLite project files",
+		toolset         = "clang",
 
 		-- The capabilities of this action
 

modules/gmake/_preload.lua

@@ -15,6 +15,7 @@
 		trigger         = "gmake",
 		shortname       = "GNU Make",
 		description     = "Generate GNU makefiles for POSIX, MinGW, and Cygwin",
+		toolset         = "gcc",
 
 		valid_kinds     = { "ConsoleApp", "WindowedApp", "StaticLib", "SharedLib", "Utility", "Makefile" },
 		valid_languages = { "C", "C++", "C#" },

modules/vstudio/tests/vc2010/test_config_props.lua

@@ -38,6 +38,7 @@
 	<ConfigurationType>Application</ConfigurationType>
 	<UseDebugLibraries>false</UseDebugLibraries>
 	<CharacterSet>Unicode</CharacterSet>
+	<PlatformToolset>v100</PlatformToolset>
 </PropertyGroup>
 		]]
 	end
@@ -270,6 +271,7 @@
 		test.capture [[
 <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
 	<ConfigurationType>Utility</ConfigurationType>
+	<PlatformToolset>v100</PlatformToolset>
 </PropertyGroup>
 		]]
 	end
@@ -286,6 +288,7 @@
 	<ConfigurationType>Application</ConfigurationType>
 	<UseDebugLibraries>false</UseDebugLibraries>
 	<CharacterSet>Unicode</CharacterSet>
+	<PlatformToolset>v100</PlatformToolset>
 	<WholeProgramOptimization>true</WholeProgramOptimization>
 		]]
 	end

modules/vstudio/tests/vc2010/test_platform_toolset.lua

@@ -35,7 +35,9 @@
 	function suite.correctDefault_onVS2010()
 		p.action.set("vs2010")
 		prepare()
-		test.isemptycapture()
+		test.capture [[
+<PlatformToolset>v100</PlatformToolset>
+		]]
 	end
 
 

modules/vstudio/vs2010.lua

@@ -131,6 +131,7 @@
 		-- Visual Studio always uses Windows path and naming conventions
 
 		targetos = "windows",
+		toolset  = "msc-v100",
 
 		-- The capabilities of this action
 

modules/vstudio/vs2010_vcxproj.lua

@@ -1929,8 +1929,8 @@
 	function m.platformToolset(cfg)
 		local tool, version = p.config.toolset(cfg)
 		if not version then
-			local action = p.action.current()
+			local value = p.action.current().toolset
-			version = action.vstudio.platformToolset
+			tool, version = p.tools.canonical(value)
 		end
 		if version then
 			if cfg.kind == p.NONE or cfg.kind == p.MAKEFILE then

modules/vstudio/vs2012.lua

@@ -21,6 +21,7 @@
 		-- Visual Studio always uses Windows path and naming conventions
 
 		targetos = "windows",
+		toolset  = "msc-v110",
 
 		-- The capabilities of this action
 
@@ -62,6 +63,5 @@
 			versionName     = "2012",
 			targetFramework = "4.5",
 			toolsVersion    = "4.0",
-			platformToolset = "v110"
 		}
 	}

modules/vstudio/vs2013.lua

@@ -21,6 +21,7 @@
 		-- Visual Studio always uses Windows path and naming conventions
 
 		targetos = "windows",
+		toolset  = "msc-v120",
 
 		-- The capabilities of this action
 
@@ -63,6 +64,5 @@
 			targetFramework = "4.5",
 			toolsVersion    = "12.0",
 			filterToolsVersion = "4.0",
-			platformToolset = "v120"
 		}
 	}

modules/vstudio/vs2015.lua

@@ -21,6 +21,7 @@
 		-- Visual Studio always uses Windows path and naming conventions
 
 		targetos = "windows",
+		toolset  = "msc-v140",
 
 		-- The capabilities of this action
 
@@ -63,6 +64,5 @@
 			targetFramework = "4.5",
 			toolsVersion    = "14.0",
 			filterToolsVersion = "4.0",
-			platformToolset = "v140"
 		}
 	}

modules/vstudio/vs2017.lua

@@ -21,6 +21,7 @@
 		-- Visual Studio always uses Windows path and naming conventions
 
 		targetos = "windows",
+		toolset  = "msc-v141",
 
 		-- The capabilities of this action
 
@@ -63,6 +64,5 @@
 			targetFramework = "4.5.2",
 			toolsVersion    = "15.0",
 			filterToolsVersion = "4.0",
-			platformToolset = "v141"
 		}
 	}

modules/xcode/_preload.lua

@@ -36,6 +36,7 @@
 		-- Xcode always uses Mac OS X path and naming conventions
 
 		targetos = "macosx",
+		toolset  = "clang",
 
 		-- The capabilities of this action
 

src/base/oven.lua

@@ -531,7 +531,7 @@
 
 		local system = p.action.current().targetos or os.target()
 		local architecture = nil
-		local toolset = nil
+		local toolset = p.action.current().toolset
 
 		if platform then
 			system = p.api.checkValue(p.fields.system, platform) or system