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

Author: geo-ant

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "lapack-src"
-version = "0.11.0"
+version = "0.12.0"
 edition = "2021"
 license = "Apache-2.0 OR MIT"
 authors = [
@@ -23,10 +23,23 @@ keywords = ["linear-algebra"]
 changelog = "CHANGELOG.md"
 
 [features]
+# apple accelerate
 accelerate = ["accelerate-src"]
-intel-mkl = ["intel-mkl-src"]
+# intel mkl with different configurations
+intel-mkl = ["intel-mkl-static-lp64-seq"]
+intel-mkl-static-lp64-iomp   = ["intel-mkl-src/mkl-static-lp64-iomp"]
+intel-mkl-static-lp64-seq    = ["intel-mkl-src/mkl-static-lp64-seq"]
+intel-mkl-static-ilp64-iomp  = ["intel-mkl-src/mkl-static-ilp64-iomp"]
+intel-mkl-static-ilp64-seq   = ["intel-mkl-src/mkl-static-ilp64-seq"]
+intel-mkl-dynamic-lp64-iomp  = ["intel-mkl-src/mkl-dynamic-lp64-iomp"]
+intel-mkl-dynamic-lp64-seq   = ["intel-mkl-src/mkl-dynamic-lp64-seq"]
+intel-mkl-dynamic-ilp64-iomp = ["intel-mkl-src/mkl-dynamic-ilp64-iomp"]
+intel-mkl-dynamic-ilp64-seq  = ["intel-mkl-src/mkl-dynamic-ilp64-seq"]
+# netlib
 netlib = ["netlib-src"]
+# openblas
 openblas = ["openblas-src"]
+# R
 r = ["r-src"]
 
 [dependencies.accelerate-src]
@@ -36,6 +49,8 @@ optional = true
 [dependencies.intel-mkl-src]
 version = "0.8"
 optional = true
+default-features = false
+
 
 [dependencies.netlib-src]
 version = "0.8"
@@ -47,4 +62,4 @@ optional = true
 
 [dependencies.r-src]
 version = "0.2.1"
-optional = true
+optional = true

README.md

@@ -26,6 +26,13 @@ lapack-src = { version = "0.11", features = ["openblas"] }
 lapack-src = { version = "0.11", 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