From 5cbca18263ac8a35b2006429d989f45986d953c5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Dani=C3=A9l=20Kerkmann?= <d.kerkmann@opentalk.eu>
Date: Thu, 26 Jun 2025 15:42:01 +0200
Subject: [PATCH] feat: add intel-sycl support

Adding Intel Sycl with the feature flag `intel-sycl` to it. Static
linking the intel sycl isn't possible, that's the reason why it's
dynamic linked.
---
 Cargo.toml     |  1 +
 sys/Cargo.toml |  1 +
 sys/build.rs   | 33 ++++++++++++++++++++++++++++-----
 3 files changed, 30 insertions(+), 5 deletions(-)

diff --git a/Cargo.toml b/Cargo.toml
index 8365e48..e9469ad 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -33,6 +33,7 @@ openblas = ["whisper-rs-sys/openblas"]
 metal = ["whisper-rs-sys/metal", "_gpu"]
 vulkan = ["whisper-rs-sys/vulkan", "_gpu"]
 openmp = ["whisper-rs-sys/openmp"]
+intel-sycl = ["whisper-rs-sys/intel-sycl", "_gpu"]
 _gpu = []
 test-with-tiny-model = []
 
diff --git a/sys/Cargo.toml b/sys/Cargo.toml
index adbc89c..8910875 100644
--- a/sys/Cargo.toml
+++ b/sys/Cargo.toml
@@ -35,6 +35,7 @@ metal = []
 vulkan = []
 force-debug = []
 openmp = []
+intel-sycl = []
 
 [build-dependencies]
 cmake = "0.1"
diff --git a/sys/build.rs b/sys/build.rs
index 977dd5f..c441ba0 100644
--- a/sys/build.rs
+++ b/sys/build.rs
@@ -267,20 +267,39 @@ fn main() {
         config.define("GGML_OPENMP", "OFF");
     }
 
+    if cfg!(feature = "intel-sycl") {
+        config.define("BUILD_SHARED_LIBS", "ON");
+        config.define("GGML_SYCL", "ON");
+        config.define("GGML_SYCL_TARGET", "INTEL");
+        config.define("CMAKE_C_COMPILER", "icx");
+        config.define("CMAKE_CXX_COMPILER", "icpx");
+    }
+
     let destination = config.build();
 
     add_link_search_path(&out.join("build")).unwrap();
 
     println!("cargo:rustc-link-search=native={}", destination.display());
-    println!("cargo:rustc-link-lib=static=whisper");
-    println!("cargo:rustc-link-lib=static=ggml");
-    println!("cargo:rustc-link-lib=static=ggml-base");
-    println!("cargo:rustc-link-lib=static=ggml-cpu");
+    if cfg!(feature = "intel-sycl") {
+        println!("cargo:rustc-link-lib=whisper");
+        println!("cargo:rustc-link-lib=ggml");
+        println!("cargo:rustc-link-lib=ggml-base");
+        println!("cargo:rustc-link-lib=ggml-cpu");
+    } else {
+        println!("cargo:rustc-link-lib=static=whisper");
+        println!("cargo:rustc-link-lib=static=ggml");
+        println!("cargo:rustc-link-lib=static=ggml-base");
+        println!("cargo:rustc-link-lib=static=ggml-cpu");
+    }
     if cfg!(target_os = "macos") || cfg!(feature = "openblas") {
         println!("cargo:rustc-link-lib=static=ggml-blas");
     }
     if cfg!(feature = "vulkan") {
-        println!("cargo:rustc-link-lib=static=ggml-vulkan");
+        if cfg!(feature = "intel-sycl") {
+            println!("cargo:rustc-link-lib=ggml-vulkan");
+        } else {
+            println!("cargo:rustc-link-lib=static=ggml-vulkan");
+        }
     }
 
     if cfg!(feature = "hipblas") {
@@ -299,6 +318,10 @@ fn main() {
         println!("cargo:rustc-link-lib=static=ggml-blas");
     }
 
+    if cfg!(feature = "intel-sycl") {
+        println!("cargo:rustc-link-lib=ggml-sycl");
+    }
+
     println!(
         "cargo:WHISPER_CPP_VERSION={}",
         get_whisper_cpp_version(&whisper_root)