Adding libintx ci for cpp build + test

Author: hatemhelal

.github/workflows/ci.yml

@@ -1,9 +1,9 @@
 name: libintx CI
 
-on: [push]
-
-env:
-  CMAKE_BUILD_PARALLEL_LEVEL : 4
+on:
+  pull_request:
+  push:
+    branches: [main]
 
 defaults:
   run:
@@ -16,31 +16,79 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os : [ macos-15 ]
-        cxx : [ clang++ ]
-        build_type : [ Debug ]
+        os :
+          - ubuntu-latest
+
+        compiler :
+          - llvm
+          - gcc
 
-    name: "${{ matrix.os }}: ${{ matrix.cxx }} ${{ matrix.build_type }}"
+        build_type : 
+          - Debug
+          - Release
+
+        simd:
+          - ON
+          - OFF
+        
+    name: "${{ matrix.os }}: ${{ matrix.compiler }} ${{ matrix.build_type }} ${{matrix.simd == 'ON' && '(simd)' || ''}}"
     runs-on: ${{ matrix.os }}
-    env:
-      CXX : ${{ matrix.cxx }}
-      CMAKE_CONFIG : >
-        -DCMAKE_BUILD_TYPE=${{ matrix.build_type }}
-        -DLIBINTX_MAX_L=2
-        -DLIBINTX_SIMD=OFF
 
     steps:
-    - uses: actions/checkout@v3
 
-    - name: "Configure: ${{ env.CMAKE_CONFIG }}"
+    - uses: actions/checkout@v4
+
+    - name: Setup Cache
+      uses: actions/cache@v4
+      with:
+        path: |
+          ~/.ccache
+        key: ${{ runner.os }}-${{ matrix.compiler }}-${{ matrix.build_type }}-${{ matrix.simd }}-${{ hashFiles('**/CMakeLists.txt') }}
+        restore-keys: |
+          ${{ runner.os }}-${{ matrix.compiler }}-${{ matrix.build_type }}-${{ matrix.simd }}
+
+    - name: Setup Cpp Build Tools
+      uses: aminya/setup-cpp@v1
+      with:
+        compiler: ${{ matrix.compiler }}
+        cmake: true
+        ninja: true
+        ccache: true
+
+    - name: Install Build Dependencies
       run: |
         set -x;
-        cmake -B${{github.workspace}}/build $CMAKE_CONFIG
+        sudo apt-get update && sudo apt-get install -y \
+          libopenblas-dev \
+          liblapacke-dev
+
+    - name: Set up ccache environment
+      run: |
+        echo "CCACHE_DIR=$HOME/.ccache" >> $GITHUB_ENV
+        echo "CCACHE_MAXSIZE=1G" >> $GITHUB_ENV
+
+    - name: ccache stats
+      run: |
+        ccache --zero-stats && ccache --show-stats
+
+    - name: Configure
+      run: |
+        set -x;
+        cmake -S . -B ./build -G "Ninja Multi-Config" \
+          -DLIBINTX_MAX_L=2 \
+          -DLIBINTX_SIMD=${{matrix.simd}} \
+          -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
+          -DCMAKE_C_COMPILER_LAUNCHER=ccache \
+          -DCMAKE_BUILD_TYPE:STRING=${{matrix.build_type}}
+
 
     - name: Build
       working-directory: ${{github.workspace}}/build
       run: |
-        cmake --build . --target all all.tests
+        cmake --build . --target all all.tests --config ${{matrix.build_type}}
+
+    - name: Show ccache stats (after build)
+      run: ccache -s
 
     - name: Test
       working-directory: ${{github.workspace}}/build

CMakeLists.txt

@@ -62,6 +62,19 @@ if (TARGET LAPACK::LAPACK)
   unset(_lib)
 endif()
 
+find_package(LAPACKE)
+if (NOT TARGET LAPACKE::LAPACKE)
+  find_package(PkgConfig REQUIRED)
+  pkg_check_modules(LAPACKE_PC lapacke)
+  if (LAPACKE_PC_FOUND)
+    message(STATUS "Found LAPACKE via pkg-config")
+    set(LAPACKE_INCLUDE_DIRS ${LAPACKE_PC_INCLUDE_DIRS})
+    set(LAPACKE_LIBRARIES ${LAPACKE_PC_LIBRARIES})
+  else()
+    message(FATAL_ERROR "LAPACKE not found via find_package or pkg-config")
+  endif()
+endif()
+
 set(LIBINTX_CBLAS_H "" CACHE STRING "")
 set(LIBINTX_LAPACKE_H "" CACHE STRING "")
 mark_as_advanced(LIBINTX_CBLAS_H LIBINTX_LAPACKE_H)

src/libintx/CMakeLists.txt

@@ -18,7 +18,7 @@ if (LIBINTX_APPLE_ACCELERATE)
 endif()
 
 if (TARGET LAPACK::LAPACK)
-  target_link_libraries(libintx.blas LAPACK::LAPACK)
+  target_link_libraries(libintx.blas LAPACK::LAPACK ${LAPACKE_LIBRARIES})
 endif()
 
 install(