chore(CI): print versions, set env vars

Author: rouson

.github/workflows/build-with-flang.yml

@@ -28,5 +28,5 @@ jobs:
         fpm --version
         $FC --version
         export FPM_FC=$FC
-        export FPM_FFLAGS="-mmlir -allow-assumed-rank -O3"
+        export FPM_FFLAGS="-O3"
         fpm test

.github/workflows/build-with-gfortran.yml

@@ -8,6 +8,11 @@ jobs:
     strategy:
       matrix:
         os: [macos-13, ubuntu-24.04]
+      fail-fast: true
+    env:
+      GCC_VER: 14
+      FC: gfortran-$GCC_VER
+      CXX: g++-$GCC-VER
 
     steps:
     - name: Checkout code
@@ -21,8 +26,10 @@ jobs:
       if: contains(matrix.os, 'ubuntu')
       run: |
         sudo apt update
-        sudo apt install -y build-essential gfortran-14 g++-14
+        sudo apt install -y build-essential $FC $CC
 
-    - name: Build and Run unit tests
+    - name: Build and Test with GCC
       run: |
-        fpm test --compiler gfortran-14
+        fpm --version
+        $FC --version
+        fpm test --compiler $FC