Adjust CI to test for CMake versions

Author: LecrisUT

.github/workflows/cmake.yml

@@ -33,8 +33,18 @@ defaults:
 jobs:
 
   build-all:
+    name: >
+      CMake ${{ matrix.cmake }}
     runs-on: ubuntu-latest
-
+    strategy:
+      matrix:
+        # CMake versions to test:
+        # - minimum and maximum in the `cmake_minimum_required`
+        #   (if needed expand this to add all intermediate values
+        #    for *temporary* CI testing)
+        # - latest version
+        cmake: ["3.9", "4.0", latest]
+      fail-fast: false
     steps:
 
     - name: Checkout ScaLAPACK
@@ -51,7 +61,12 @@ jobs:
 
     - name: Install BLAS and LAPACK
       run: sudo apt -y install libblas-dev liblapack-dev
-        
+
+    - name: Setup CMake
+      uses: jwlawson/actions-setup-cmake@v2
+      with:
+        cmake-version: ${{ matrix.cmake }}
+
     - name: CMake configuration
       run: >
         cmake -B build

BLACS/INSTALL/CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 2.8)
+cmake_minimum_required(VERSION 2.8...4.0)
 project(INSTALL C Fortran)
 
 add_executable(xintface Fintface.f Cintface.c)

CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.9)
+cmake_minimum_required(VERSION 3.9...4.0)
 
 project(SCALAPACK VERSION 2.2.2 LANGUAGES C Fortran)