Flatten create structure

Signed-off-by: Ralf Zerres <ralf.zerres@networkx.de>

advotracker_client/build.rs-windres

@@ -0,0 +1,24 @@
+/*
+ * advotracker - Hotline tackingtool for Advocats
+ *
+ * Copyright 2021 Ralf Zerres <ralf.zerres@networkx.de>
+ * SPDX-License-Identifier: (0BSD or MIT)
+ */
+
+use std::env;
+use std::error::Error;
+#[cfg(target_os = "windows")]
+use windres::Build;
+
+fn main() -> Result<(), Box<dyn Error>> {
+    if env::var("CARGO_CFG_TARGET_FAMILY")? == "windows" {
+        let mut res = Build::new();
+        let target_env = std::env::var("CARGO_CFG_TARGET_ENV")?;
+        match target_env.as_str() {
+            "gnu" => res.set_icon("advotracker.rc"),
+            "msvc" => res.set_icon("advotracker.rc"),
+            _ => panic!("Unsupported env: {}", target_env),
+        };
+        res.compile()?
+    }
+}