Make the code compile on macOS (#125)

With the optimization that build does not require Service Fabric runtime
installed, building on any major platform is allowed. Here adding a
small fix to make the code compile on macOS, though Service Fabric does
not run natively on macOS.

README.md

@@ -50,7 +50,12 @@ enabled = true
 ```
 
 ## Quick Build
-Build all Rust libraries and examples
+Build Rust libraries only:
+```sh 
+cargo build
+```
+
+Alternatively, build all Rust libraries and samples:
 ```sh
 cmake . -B build
 cmake --build build

crates/libs/core/src/debug/mod.rs

@@ -18,3 +18,7 @@ pub fn wait_for_debugger() {
 
 #[cfg(target_os = "linux")]
 pub fn wait_for_debugger() {}
+
+/// macOS is not supported. This is merely to make this library to compile on macOS.
+#[cfg(target_os = "macos")]
+pub fn wait_for_debugger() {}