Fix broken build when using rust 1.37.0 support

cargo-apk/injected-glue/lib.rs

@@ -641,3 +641,22 @@ pub fn load_asset(filename: &str) -> Result<Vec<u8>, AssetError> {
     };
     Ok(vec)
 }
+
+// Exported function which is called be Android's NativeActivity
+#[no_mangle]
+pub unsafe extern "C" fn ANativeActivity_onCreate(
+    activity: *mut c_void,
+    saved_state: *mut c_void,
+    saved_state_size: usize,
+) {
+    native_app_glue_onCreate(activity, saved_state, saved_state_size);
+}
+
+extern "C" {
+    #[allow(non_snake_case)]
+    fn native_app_glue_onCreate(
+        activity: *mut c_void,
+        saved_state: *mut c_void,
+        saved_state_size: usize,
+    );
+}

cargo-apk/native_app_glue/android_native_app_glue.c

@@ -420,8 +420,9 @@ static void onInputQueueDestroyed(ANativeActivity* activity, AInputQueue* queue)
     android_app_set_input((struct android_app*)activity->instance, NULL);
 }
 
-JNIEXPORT
-void ANativeActivity_onCreate(ANativeActivity* activity, void* savedState,
+// Called by ANativeActivity_onCreate which will be exported and will call this function.
+// Needed because this symbol will not be globally exported.
+void native_app_glue_onCreate(ANativeActivity* activity, void* savedState,
                               size_t savedStateSize) {
     LOGV("Creating: %p\n", activity);
     activity->callbacks->onDestroy = onDestroy;

cargo-apk/src/main.rs

@@ -325,7 +325,7 @@ pub fn execute_install(options: &ArgMatches, cargo_config: &CargoConfig) -> carg
         &workspace,
         &options.value_of("package").map(|s| s.to_owned()),
     )?;
-    android_config.release = options.is_present("release");
+    android_config.release = !options.is_present("debug");
 
     ops::install(&workspace, &android_config, &options)?;
     Ok(())

cargo-apk/src/ops/build/compile.rs

@@ -215,14 +215,14 @@ pub extern "C" fn android_main(app: *mut ()) {{
             fs::create_dir_all(&build_path).unwrap();
 
             //
-            // Change crate-type from bin to dylib
+            // Change crate-type from bin to cdylib
             // Replace output directory with the directory we created
             //
             let mut iter = new_args.iter_mut().rev().peekable();
             while let Some(arg) = iter.next() {
                 if let Some(prev_arg) = iter.peek() {
                     if *prev_arg == "--crate-type" && arg == "bin" {
-                        *arg = "dylib".into();
+                        *arg = "cdylib".into();
                     } else if *prev_arg == "--out-dir" {
                         *arg = build_path.clone().into();
                     }