Fix build issues

Author: matt-cornell

cobalt-build/src/lib.rs

@@ -18,6 +18,8 @@ use std::io::{self, prelude::*, ErrorKind};
 use std::path::{Path, PathBuf};
 use thiserror::Error;
 
+pub const HOST_TRIPLE: &str = env!("HOST");
+
 #[derive(Debug, Clone, Copy, Error)]
 #[error("build failed because of {0} compiler error{}", if *.0 == 1 {""} else {"s"})]
 pub struct CompileErrors(pub usize);

cobalt-cli/src/tests/hello_world.rs

@@ -52,22 +52,23 @@ fn test_hello_world_aot() {
 fn test_hello_world_aot_linked() {
     let input_main_path_str = "src/tests/inputs/hello_world_linked_main.co";
     let input_lib_path_str = "src/tests/inputs/hello_world_linked_lib.co";
-    let output_lib_path_str = "src/tests/outputs/libhello_world_linked.o";
     let output_main_path_str = "src/tests/outputs/hello_world_linked";
-
+    let output_lib_path_str = Path::new("src/tests/outputs").join(cobalt_build::libs::format_lib("hello_world_linked", cobalt_build::HOST_TRIPLE, true));
     // ---
 
     let input_lib = clio::Input::new(input_lib_path_str);
     assert!(
         input_lib.is_ok(),
         "(clio) failed to load input: {:?}",
-        &input_lib.err()
+        &input_lib.unwrap_err()
     );
-    let output_lib = clio::OutputPath::new(output_lib_path_str);
+
+
+    let output_lib = clio::OutputPath::new(&output_lib_path_str);
     assert!(
         output_lib.is_ok(),
         "(clio) failed to load output: {:?}",
-        &output_lib.err()
+        &output_lib.unwrap_err()
     );
 
     let cli_lib = Cli::Aot {

cobalt-cli/src/tests/inputs/hello_world_linked_lib.co

@@ -1,5 +1,5 @@
 @C(extern) fn puts(str: *u8);
 
-fn hello_world() = {
+@export fn hello_world() = {
     puts("Hello, world!"c);
-};
+};