Expose MKL linkage, fixes segfaults with lapack crate. (#11)

* expose granular mkl features, change which mkl is linked by default

* expose mkl for all features

* simplify mkl linkage options

* Update netlib-src

* expose granular mkl features, change which mkl is linked by default

* Update netlib-src

* fix extra comma

* address review comments

* bump version, expose 2x2 feature matrix for mkl linkage

Author: geo-ant

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "lapack-src"
-version = "0.12.0"
+version = "0.13.0"
 edition = "2024"
 license = "Apache-2.0 OR MIT"
 authors = [
@@ -24,7 +24,10 @@ changelog = "CHANGELOG.md"
 
 [features]
 accelerate = ["accelerate-src"]
-intel-mkl = ["intel-mkl-src"]
+intel-mkl-dynamic-parallel = ["intel-mkl-src/mkl-dynamic-lp64-iomp"]
+intel-mkl-dynamic-sequential = ["intel-mkl-src/mkl-dynamic-lp64-seq"]
+intel-mkl-static-parallel = ["intel-mkl-src/mkl-static-lp64-iomp"]
+intel-mkl-static-sequential = ["intel-mkl-src/mkl-static-lp64-seq"]
 netlib = ["netlib-src"]
 openblas = ["openblas-src"]
 r = ["r-src"]
@@ -47,4 +50,4 @@ optional = true
 
 [dependencies.r-src]
 version = "0.2.1"
-optional = true
+optional = true

README.md

@@ -26,6 +26,13 @@ lapack-src = { version = "0.12", features = ["openblas"] }
 lapack-src = { version = "0.12", features = ["r"] }
 ```
 
+### Intel MKL Configuration
+
+The `intel-mkl` feature will *statically* link the *sequential LP64* version of
+the MKL library. To link other versions of the library, check the `intel-mkl-*-*-*`
+features inside this crate, which are analogous to the feature flags of
+the [`intel-mkl-src` crate] (https://crates.io/crates/intel-mkl-src).
+
 ## Contribution
 
 Your contribution is highly appreciated. Do not hesitate to open an issue or a

src/lib.rs

@@ -7,7 +7,11 @@
 //! The following implementations are available:
 //!
 //! * `accelerate`, which is the one in the [Accelerate] framework (macOS only),
-//! * `intel-mkl`, which is the one in [Intel MKL],
+//! * `intel-mkl-*`, which is the one in [Intel MKL], where
+//!   * `intel-mkl-dynamic-parallel` dynamically links the parallel backend of MKL
+//!   * `intel-mkl-dynamic-sequential` dynamically links the sequential backend of MKL
+//!   * `intel-mkl-static-parallel` statically links the parallel backend of MKL
+//!   * `intel-mkl-static-sequential` statically links the sequential backend of MKL
 //! * `netlib`, which is the reference one by [Netlib],
 //! * `openblas`, which is the one in [OpenBLAS], and
 //! * `r`, which is the one in [R].
@@ -37,7 +41,12 @@
 #[cfg(feature = "accelerate")]
 extern crate accelerate_src as raw;
 
-#[cfg(feature = "intel-mkl")]
+#[cfg(any(
+    feature = "intel-mkl-dynamic-parallel",
+    feature = "intel-mkl-dynamic-sequential",
+    feature = "intel-mkl-static-parallel",
+    feature = "intel-mkl-static-sequential",
+))]
 extern crate intel_mkl_src as raw;
 
 #[cfg(feature = "netlib")]