Fix Build Script and Compilation Conditions

See rust-lang/cargo#14881 for rationale

build.rs

@@ -1,8 +1,17 @@
 use std::io;
 
-#[cfg(all(target_os = "windows", any(target_env = "msvc", target_env = "gnu")))]
+#[cfg(not(target_os = "windows"))]
 fn main() -> io::Result<()> {
-    if cfg!(target_os = "windows") && !cfg!(test) {
+    Ok(())
+}
+
+#[cfg(target_os = "windows")]
+fn main() -> io::Result<()> {
+    //Only perform Windows Resource application if we are targeting Windows
+    //See https://github.com/rust-lang/cargo/issues/14881#issuecomment-2510440862
+    let target_os =
+        std::env::var("CARGO_CFG_TARGET_OS").expect("Cargo did not set the vars we expected!");
+    if target_os == "windows" {
         let mut res = winres::WindowsResource::new();
         res.set_icon("src/icon.ico")
             .set("InternalName", "rust-pipes.exe");
@@ -11,8 +20,3 @@ fn main() -> io::Result<()> {
 
     Ok(())
 }
-
-#[cfg(any(not(target_os = "windows"), not(any(target_env = "msvc"))))]
-fn main() -> io::Result<()> {
-    Ok(())
-}

src/lib.rs

@@ -1,7 +1,9 @@
 #![allow(special_module_name)]
+
+mod engine;
+
 cfg_if::cfg_if! {
     if #[cfg(target_arch="wasm32")]{
-        mod engine;
 
         // Entry point for wasm
         use wasm_bindgen::prelude::*;
@@ -13,7 +15,6 @@ cfg_if::cfg_if! {
         }
     }
 }
-mod engine;
 
 pub fn entry_point() {
     engine::real_main();