Merged in dcourtois/premake-dev/issue_265 (pull request #159)

fixed issue #265

src/_premake_main.lua

@@ -57,10 +57,6 @@
 		end
 
 		local chunk, err = loadfile(p)
-		if not chunk then
-			error(err, 0)
-		end
-
 		return chunk
 	end
 

tests/_tests.lua

@@ -6,6 +6,7 @@ return {
 	"base/test_criteria.lua",
 	"base/test_detoken.lua",
 	"base/test_include.lua",
+	"base/test_module_loader.lua",
 	"base/test_option.lua",
 	"base/test_os.lua",
 	"base/test_override.lua",

tests/base/test_module_loader.lua

@@ -0,0 +1,37 @@
+--
+-- tests/base/test_module_loader.lua
+-- Test the custom module loader.
+-- Copyright (c) 2012-2015 Jason Perkins and the Premake project
+--
+
+	local suite = test.declare("module_loader")
+
+--
+-- Setup
+--
+
+	local loaderIndex
+
+	function suite.setup()
+		table.insert(package.loaders, function (name)
+			premake.out(name)
+			return loadstring("")
+		end)
+		loaderIndex = #package.loaders
+	end
+
+	function suite.teardown()
+		table.remove(package.loaders, loaderIndex)
+	end
+
+--
+-- Check that premake's module loader let other loaders try
+-- when it cannot find a module.
+--
+
+	function suite.letOtherLoadersTry()
+		require("foo")
+		test.capture [[
+foo
+		]]
+	end