1 files changed, 3 insertions, 2 deletions
diff --git a/src/ctor.h b/src/ctor.h
index bac1e3a..921bced 100644
--- a/src/ctor.h
+++ b/src/ctor.h
@@ -62,6 +62,7 @@ enum class toolchain
 	none,
 	gcc,
 	clang,
+	msvc,
 };
 
 struct output_file
@@ -85,7 +86,7 @@ struct source
 		          std::is_same_v<Args, ctor::source_type> ||
 		          std::is_same_v<Args, ctor::output_file>
 		          ) && ...)
-	constexpr source(Args && ... arg)
+	constexpr source(Args ... arg)
 	{
 		([&]
 		{
@@ -205,7 +206,7 @@ public:
 		          std::is_same_v<Args, ctor::toolchain> ||
 		          std::is_same_v<Args, T>
 		          ) && ...)
-	constexpr flag(Args && ... _arg)
+	constexpr flag(Args ... _arg)
 	{
 		constexpr std::size_t n = sizeof...(Args);
 		int state{}; // 0: opt, 1: arg1, 2: arg2, 3: error