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.github/workflows/rust.yml

@@ -0,0 +1,89 @@
+name: Rust
+
+on:
+  push:
+    branches:
+      - master
+  pull_request: {}
+
+jobs:
+  windows-msvc:
+    runs-on: windows-2019
+    strategy:
+      fail-fast: false
+      matrix:
+        feature:
+          - system
+          - "system,static"
+    steps:
+    - uses: actions/checkout@v1
+    - uses: actions/cache@v2
+      with:
+        path: ./vcpkg
+        key: vcpkg-openblas
+    - name: Install vcpkg
+      run: |
+        git clone https://github.com/Microsoft/vcpkg.git --depth 1
+        cd vcpkg
+        ./bootstrap-vcpkg.bat
+    - name: Install static OpenBLAS by vcpkg
+      run: |
+        ./vcpkg/vcpkg.exe install openblas:x64-windows-static
+      if: ${{ matrix.feature == 'system,static' }}
+    - name: Install OpenBLAS by vcpkg
+      run: |
+        ./vcpkg/vcpkg.exe install openblas:x64-windows
+      if: ${{ matrix.feature == 'system' }}
+    - uses: actions-rs/cargo@v1
+      with:
+        command: test
+        args: --features=${{ matrix.feature }}
+      env:
+        VCPKG_ROOT: ${{ github.workspace }}/vcpkg
+
+  macos:
+    runs-on: macos-10.15
+    strategy:
+      fail-fast: false
+      matrix:
+        feature:
+          - ""
+          - static
+          - system
+    steps:
+    - uses: actions/checkout@v1
+      with:
+        submodules: 'recursive'
+    - name: Install OpenBLAS by homebrew
+      run: |
+        brew install openblas
+      if: ${{ contains(matrix.feature, 'system') }}
+    - uses: actions-rs/cargo@v1
+      with:
+        command: test
+        args: --features=${{ matrix.feature }}
+
+  linux:
+    runs-on: ubuntu-18.04
+    container:
+      image: rust
+    strategy:
+      fail-fast: false
+      matrix:
+        feature:
+          - ""
+          - static
+          - system
+    steps:
+    - uses: actions/checkout@v1
+      with:
+        submodules: 'recursive'
+    - name: Install OpenBLAS by apt
+      run: |
+        apt update
+        apt install -y libopenblas-dev
+      if: ${{ contains(matrix.feature, 'system') }}
+    - uses: actions-rs/cargo@v1
+      with:
+        command: test
+        args: --features=${{ matrix.feature }}

build.rs

@@ -24,6 +24,55 @@ fn main() {
             #[cfg(target_env = "msvc")]
             vcpkg::find_package("openblas").unwrap();
         }
+
+        // Add path where pacman (on msys2) install OpenBLAS
+        //
+        // - `pacman -S mingw-w64-x86_64-openblas` will install
+        //   - `libopenbla.dll` into `/mingw64/bin`
+        //   - `libopenbla.a`   into `/mingw64/lib`
+        // - But we have to specify them using `-L` in **Windows manner**
+        //   - msys2 `/` is `C:\msys64\` in Windows by default install
+        //   - It can be convert using `cygpath` command
+        if cfg!(target_os = "windows") && cfg!(target_env = "gnu") {
+            if kind == "dylib" {
+                let lib_path = String::from_utf8(
+                    Command::new("cygpath")
+                        .arg("-w")
+                        .arg("/mingw64/bin")
+                        .output()
+                        .expect("Failed to exec cygpath")
+                        .stdout,
+                )
+                .unwrap();
+                println!("cargo:rustc-link-search={}", lib_path);
+            } else {
+                let lib_path = String::from_utf8(
+                    Command::new("cygpath")
+                        .arg("-w")
+                        .arg("/mingw64/lib")
+                        .output()
+                        .expect("Failed to exec cygpath")
+                        .stdout,
+                )
+                .unwrap();
+                println!("cargo:rustc-link-search={}", lib_path);
+            }
+        }
+
+        // homebrew will says
+        //
+        // > openblas is keg-only, which means it was not symlinked into /usr/local,
+        // > because macOS provides BLAS in Accelerate.framework.
+        // > For compilers to find openblas you may need to set:
+        //
+        // ```
+        // export LDFLAGS="-L/usr/local/opt/openblas/lib"
+        // export CPPFLAGS="-I/usr/local/opt/openblas/include"
+        // ```
+        //
+        if cfg!(target_os = "macos") {
+            println!("cargo:rustc-link-search=/usr/local/opt/openblas/lib");
+        }
     } else {
         if cfg!(target_env = "msvc") {
             panic!("Non-vcpkg builds are not supported on Windows (you must use the \"system\" feature.")