diff --git a/src/lib.rs b/src/lib.rs
index 7744134..9af1793 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -15,6 +15,10 @@
 //! This crate will automatically detect situations such as cross compilation or
 //! other environment variables set by Cargo and will build code appropriately.
 //!
+//! The crate is not limited to C code, it can accept any source code that can
+//! be passed to a C or C++ compiler. As such, assembly files with extensions
+//! `.s` (gcc/clang) and `.asm` (MSVC) can also be compiled.
+//!
 //! [`Config`]: struct.Config.html
 //!
 //! # Examples
diff --git a/tests/test.rs b/tests/test.rs
index c013099..51f82f0 100644
--- a/tests/test.rs
+++ b/tests/test.rs
@@ -185,6 +185,9 @@ fn gnu_shared() {
 
 #[test]
 fn gnu_flag_if_supported() {
+    if cfg!(windows) {
+        return
+    }
     let test = Test::gnu();
     test.gcc()
         .file("foo.c")