core: Match IRRT compile flavor with build profile

nac3core/build.rs

@@ -14,7 +14,20 @@ fn main() {
      * HACK: Sadly, clang doesn't let us emit generic LLVM bitcode.
      * Compiling for WASM32 and filtering the output with regex is the closest we can get.
      */
-    const FLAG: &[&str] = &[
+    let flags: &[&str] = match env::var("PROFILE").unwrap().as_str() {
+        "debug" => &[
+            "--target=wasm32",
+            FILE,
+            "-fno-discard-value-names",
+            "-O0",
+            "-emit-llvm",
+            "-S",
+            "-Wall",
+            "-Wextra",
+            "-o",
+            "-",
+        ],
+        "release" => &[
             "--target=wasm32",
             FILE,
             "-fno-discard-value-names",
@@ -25,14 +38,16 @@ fn main() {
             "-Wextra",
             "-o",
             "-",
-    ];
+        ],
+        _ => unreachable!(),
+    };
 
     println!("cargo:rerun-if-changed={FILE}");
     let out_dir = env::var("OUT_DIR").unwrap();
     let out_path = Path::new(&out_dir);
 
     let output = Command::new("clang-irrt")
-        .args(FLAG)
+        .args(flags)
         .output()
         .map(|o| {
             assert!(o.status.success(), "{}", std::str::from_utf8(&o.stderr).unwrap());