spark404 commented on code in PR #246:
URL: 
https://github.com/apache/teaclave-trustzone-sdk/pull/246#discussion_r2459608409


##########
optee-teec/optee-teec-sys/build.rs:
##########
@@ -43,7 +43,14 @@ fn link() {
 
     let optee_client_dir =
         env::var(ENV_OPTEE_CLIENT_EXPORT).expect("OPTEE_CLIENT_EXPORT is not 
set");
-    let search_path = Path::new(&optee_client_dir).join("usr/lib");
-    println!("cargo:rustc-link-search={}", search_path.display());
+    let library_path = PathBuf::from(optee_client_dir).join("usr/lib");
+    if !library_path.exists() {
+        panic!(
+            "Library path {} does not exist",

Review Comment:
   @DemesneGH I did notice that this location appears changed in recent 
versions of optee_client? I ran into this issue when using the 4.7.0 branch 
while building a custom TA.
   
   ```
   ls ../optee/optee_client/out/
   libckteec    libseteec       libteec         tee-supplicant
   ```



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