fix: resolve Ta-Lib build and linking issues

- Always create dependencies directory structure
- Fix Windows header path resolution with multiple fallback locations
- Remove problematic global bindgen flag from Cargo.toml
- Skip --no-size_t-is-usize flag for Linux ARM to avoid bindgen errors
- Add additional library search paths for system-installed ta-lib

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: Yvictor

talib-sys/Cargo.toml

@@ -22,5 +22,3 @@ flate2 = "1.0.26"
 zip-extract = "0.1.2"
 fs_extra = "1.3.0"
 
-[build]
-rustc-cdylib-link-arg = "--no-size_t-is-usize"

talib-sys/build.rs

@@ -17,8 +17,13 @@ fn main() {
     println!("cargo:rerun-if-env-changed=TA_LIBRARY_PATH");
     println!("cargo:rerun-if-env-changed=DEPS_PATH");
 
-    // Only build if TA lib is not already installed
+    // Always build TA lib from source to ensure it's available
     let deps_path = env::var("DEPS_PATH").unwrap_or_else(|_| "dependencies".to_string());
+    
+    // Create dependencies directory structure
+    std::fs::create_dir_all(format!("{}/lib", deps_path)).expect("Failed to create lib directory");
+    std::fs::create_dir_all(format!("{}/include", deps_path)).expect("Failed to create include directory");
+    
     let lib_file = if target_os == "windows" {
         format!("{}/lib/ta_lib.lib", deps_path)
     } else {
@@ -31,8 +36,14 @@ fn main() {
     }
 
     println!("cargo:rustc-link-lib=static=ta_lib");
-    println!("cargo:rustc-link-search=native={ta_library_path}");
-    println!("cargo:rustc-link-search=native=../dependencies/lib");
+    println!("cargo:rustc-link-search=native={}", ta_library_path);
+    println!("cargo:rustc-link-search=native={}/lib", deps_path);
+    
+    // Add additional search paths for system-installed ta-lib
+    if target_os != "windows" {
+        println!("cargo:rustc-link-search=native=/usr/local/lib");
+        println!("cargo:rustc-link-search=native=/usr/lib");
+    }
     // let cb = ParseCallbacks::add_derives();
     let mut bindings_builder = bindgen::Builder::default()
         // The input header we would like to generate
@@ -42,9 +53,11 @@ fn main() {
         .clang_arg("-I../dependencies/include")
         .clang_arg("-v");
 
-    // Only add --no-size_t-is-usize for cross-compilation targets that need it
+    // Add target-specific bindgen flags
     if target_arch == "aarch64" && target_os == "linux" {
-        bindings_builder = bindings_builder.clang_arg("--no-size_t-is-usize");
+        // Only add this flag for Linux ARM cross-compilation if bindgen supports it
+        // Skip if it causes issues
+        println!("cargo:warning=Skipping --no-size_t-is-usize for Linux ARM build");
     }
 
     let bindings = bindings_builder
@@ -133,9 +146,22 @@ fn build_windows_talib(src_dir: &str, deps_path: &str, current_dir: &PathBuf) {
     std::fs::create_dir_all(&lib_dir).expect("Failed to create lib directory");
     std::fs::create_dir_all(&include_dir).expect("Failed to create include directory");
 
-    // Copy headers
-    let headers_src = format!("{}/src/include", extract_dir);
-    copy_dir_recursive(&headers_src, &include_dir).expect("Failed to copy headers");
+    // Copy headers - try multiple possible locations
+    let mut headers_copied = false;
+    for headers_path in [
+        format!("{}/src/include", extract_dir),
+        format!("{}/include", extract_dir),
+        format!("{}/ta-lib/include", extract_dir),
+    ] {
+        if std::path::Path::new(&headers_path).exists() {
+            copy_dir_recursive(&headers_path, &include_dir).expect("Failed to copy headers");
+            headers_copied = true;
+            break;
+        }
+    }
+    if !headers_copied {
+        panic!("Could not find Ta-Lib headers in any expected location");
+    }
 
     // Build the library using nmake
     env::set_current_dir(&extract_dir).expect("Failed to change to ta-lib directory");